- remade file names in the app

- fixed the issue with factory_defaults being saved every time the app start
- fixed the preferences not being saved to a file when the Save button is pressed in Edit -> Preferences
- fixed and updated the Transform Tools in the Editors

appGUI/preferences/OptionUI.py

@@ -0,0 +1,327 @@
+from typing import Union, Sequence, List
+
+from PyQt5 import QtWidgets, QtGui
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import RadioSet, FCCheckBox, FCButton, FCComboBox, FCEntry, FCSpinner, FCColorEntry, \
+    FCSliderWithSpinner, FCDoubleSpinner, FloatEntry, FCTextArea
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+
+class OptionUI:
+
+    def __init__(self, option: str):
+        self.option = option
+
+    def add_to_grid(self, grid: QtWidgets.QGridLayout, row: int) -> int:
+        """
+        Adds the necessary widget to the grid, starting at the supplied row.
+        Returns the number of rows used (normally 1)
+        """
+        raise NotImplementedError()
+
+    def get_field(self):
+        raise NotImplementedError()
+
+
+class BasicOptionUI(OptionUI):
+    """Abstract OptionUI that has a label on the left then some other widget on the right"""
+    def __init__(self, option: str, label_text: str, label_tooltip: Union[str, None] = None,
+                 label_bold: bool = False, label_color: Union[str, None] = None):
+        super().__init__(option=option)
+        self.label_text = label_text
+        self.label_tooltip = label_tooltip
+        self.label_bold = label_bold
+        self.label_color = label_color
+        self.label_widget = self.build_label_widget()
+        self.entry_widget = self.build_entry_widget()
+
+    def build_label_widget(self) -> QtWidgets.QLabel:
+        fmt = "%s:"
+        if self.label_bold:
+            fmt = "<b>%s</b>" % fmt
+        if self.label_color:
+            fmt = "<span style=\"color:%s;\">%s</span>" % (self.label_color, fmt)
+        label_widget = QtWidgets.QLabel(fmt % _(self.label_text))
+        if self.label_tooltip is not None:
+            label_widget.setToolTip(_(self.label_tooltip))
+        return label_widget
+
+    def build_entry_widget(self) -> QtWidgets.QWidget:
+        raise NotImplementedError()
+
+    def add_to_grid(self, grid: QtWidgets.QGridLayout, row: int) -> int:
+        grid.addWidget(self.label_widget, row, 0)
+        grid.addWidget(self.entry_widget, row, 1)
+        return 1
+
+    def get_field(self):
+        return self.entry_widget
+
+
+class LineEntryOptionUI(BasicOptionUI):
+    def build_entry_widget(self) -> QtWidgets.QWidget:
+        return FCEntry()
+
+
+# Not sure why this is needed over DoubleSpinnerOptionUI
+class FloatEntryOptionUI(BasicOptionUI):
+    def build_entry_widget(self) -> QtWidgets.QWidget:
+        return FloatEntry()
+
+
+class RadioSetOptionUI(BasicOptionUI):
+
+    def __init__(self, option: str, label_text: str, choices: list, orientation='horizontal', **kwargs):
+        self.choices = choices
+        self.orientation = orientation
+        super().__init__(option=option, label_text=label_text, **kwargs)
+
+    def build_entry_widget(self) -> QtWidgets.QWidget:
+        return RadioSet(choices=self.choices, orientation=self.orientation)
+
+
+class TextAreaOptionUI(OptionUI):
+
+    def __init__(self, option: str, label_text: str, label_tooltip: str):
+        super().__init__(option=option)
+        self.label_text = label_text
+        self.label_tooltip = label_tooltip
+        self.label_widget = self.build_label_widget()
+        self.textarea_widget = self.build_textarea_widget()
+
+    def build_label_widget(self):
+        label = QtWidgets.QLabel("%s:" % _(self.label_text))
+        label.setToolTip(_(self.label_tooltip))
+        return label
+
+    def build_textarea_widget(self):
+        textarea = FCTextArea()
+        textarea.setPlaceholderText(_(self.label_tooltip))
+
+        qsettings = QSettings("Open Source", "FlatCAM")
+        if qsettings.contains("textbox_font_size"):
+            tb_fsize = qsettings.value('textbox_font_size', type=int)
+        else:
+            tb_fsize = 10
+        font = QtGui.QFont()
+        font.setPointSize(tb_fsize)
+        textarea.setFont(font)
+
+        return textarea
+
+    def get_field(self):
+        return self.textarea_widget
+
+    def add_to_grid(self, grid: QtWidgets.QGridLayout, row: int) -> int:
+        grid.addWidget(self.label_widget, row, 0, 1, 3)
+        grid.addWidget(self.textarea_widget, row+1, 0, 1, 3)
+        return 2
+
+
+class CheckboxOptionUI(OptionUI):
+
+    def __init__(self, option: str, label_text: str, label_tooltip: str):
+        super().__init__(option=option)
+        self.label_text = label_text
+        self.label_tooltip = label_tooltip
+        self.checkbox_widget = self.build_checkbox_widget()
+
+    def build_checkbox_widget(self):
+        checkbox = FCCheckBox('%s' % _(self.label_text))
+        checkbox.setToolTip(_(self.label_tooltip))
+        return checkbox
+
+    def add_to_grid(self, grid: QtWidgets.QGridLayout, row: int) -> int:
+        grid.addWidget(self.checkbox_widget, row, 0, 1, 3)
+        return 1
+
+    def get_field(self):
+        return self.checkbox_widget
+
+
+class ComboboxOptionUI(BasicOptionUI):
+
+    def __init__(self, option: str, label_text: str, choices: Sequence, **kwargs):
+        self.choices = choices
+        super().__init__(option=option, label_text=label_text, **kwargs)
+
+    def build_entry_widget(self):
+        combo = FCComboBox()
+        for choice in self.choices:
+            # don't translate the QCombo items as they are used in QSettings and identified by name
+            combo.addItem(choice)
+        return combo
+
+
+class ColorOptionUI(BasicOptionUI):
+    def build_entry_widget(self) -> QtWidgets.QWidget:
+        entry = FCColorEntry()
+        return entry
+
+
+class SliderWithSpinnerOptionUI(BasicOptionUI):
+    def __init__(self, option: str, label_text: str, min_value=0, max_value=100, step=1, **kwargs):
+        self.min_value = min_value
+        self.max_value = max_value
+        self.step = step
+        super().__init__(option=option, label_text=label_text, **kwargs)
+
+    def build_entry_widget(self) -> QtWidgets.QWidget:
+        entry = FCSliderWithSpinner(min=self.min_value, max=self.max_value, step=self.step)
+        return entry
+
+
+class ColorAlphaSliderOptionUI(SliderWithSpinnerOptionUI):
+    def __init__(self, applies_to: List[str], group, label_text: str, **kwargs):
+        self.applies_to = applies_to
+        self.group = group
+        super().__init__(option="__color_alpha_slider", label_text=label_text, min_value=0, max_value=255, step=1,
+                         **kwargs)
+        self.get_field().valueChanged.connect(self._on_alpha_change)
+
+    def add_to_grid(self, grid: QtWidgets.QGridLayout, row: int) -> int:
+        for index, field in enumerate(self._get_target_fields()):
+            field.entry.textChanged.connect(lambda value, i=index: self._on_target_change(target_index=i))
+        return super().add_to_grid(grid, row)
+
+    def _get_target_fields(self):
+        return list(map(lambda n: self.group.option_dict()[n].get_field(), self.applies_to))
+
+    def _on_target_change(self, target_index: int):
+        field = self._get_target_fields()[target_index]
+        color = field.get_value()
+        alpha_part = color[7:]
+        if len(alpha_part) != 2:
+            return
+        alpha = int(alpha_part, 16)
+        if alpha < 0 or alpha > 255 or self.get_field().get_value() == alpha:
+            return
+        self.get_field().set_value(alpha)
+
+    def _on_alpha_change(self):
+        alpha = self.get_field().get_value()
+        for field in self._get_target_fields():
+            old_value = field.get_value()
+            new_value = self._modify_color_alpha(old_value, alpha=alpha)
+            field.set_value(new_value)
+
+    @staticmethod
+    def _modify_color_alpha(color: str, alpha: int):
+        color_without_alpha = color[:7]
+        if alpha > 255:
+            return color_without_alpha + "FF"
+        elif alpha < 0:
+            return color_without_alpha + "00"
+        else:
+            hexalpha = hex(alpha)[2:]
+            if len(hexalpha) == 1:
+                hexalpha = "0" + hexalpha
+            return color_without_alpha + hexalpha
+
+
+class SpinnerOptionUI(BasicOptionUI):
+    def __init__(self, option: str, label_text: str, min_value: int, max_value: int, step: int = 1, **kwargs):
+        self.min_value = min_value
+        self.max_value = max_value
+        self.step = step
+        super().__init__(option=option, label_text=label_text, **kwargs)
+
+    def build_entry_widget(self) -> QtWidgets.QWidget:
+        entry = FCSpinner()
+        entry.set_range(self.min_value, self.max_value)
+        entry.set_step(self.step)
+        entry.setWrapping(True)
+        return entry
+
+
+class DoubleSpinnerOptionUI(BasicOptionUI):
+    def __init__(self, option: str, label_text: str, step: float, decimals: int, min_value=None, max_value=None,
+                 suffix=None, **kwargs):
+        self.min_value = min_value
+        self.max_value = max_value
+        self.step = step
+        self.suffix = suffix
+        self.decimals = decimals
+        super().__init__(option=option, label_text=label_text, **kwargs)
+
+    def build_entry_widget(self) -> QtWidgets.QWidget:
+        entry = FCDoubleSpinner(suffix=self.suffix)
+        entry.set_precision(self.decimals)
+        entry.setSingleStep(self.step)
+        if self.min_value is None:
+            self.min_value = entry.minimum()
+        else:
+            entry.setMinimum(self.min_value)
+        if self.max_value is None:
+            self.max_value = entry.maximum()
+        else:
+            entry.setMaximum(self.max_value)
+        return entry
+
+
+class HeadingOptionUI(OptionUI):
+    def __init__(self, label_text: str, label_tooltip: Union[str, None] = None):
+        super().__init__(option="__heading")
+        self.label_text = label_text
+        self.label_tooltip = label_tooltip
+
+    def build_heading_widget(self):
+        heading = QtWidgets.QLabel('<b>%s</b>' % _(self.label_text))
+        heading.setToolTip(_(self.label_tooltip))
+        return heading
+
+    def add_to_grid(self, grid: QtWidgets.QGridLayout, row: int) -> int:
+        grid.addWidget(self.build_heading_widget(), row, 0, 1, 2)
+        return 1
+
+    def get_field(self):
+        return None
+
+
+class SeparatorOptionUI(OptionUI):
+
+    def __init__(self):
+        super().__init__(option="__separator")
+
+    @staticmethod
+    def build_separator_widget():
+        separator = QtWidgets.QFrame()
+        separator.setFrameShape(QtWidgets.QFrame.HLine)
+        separator.setFrameShadow(QtWidgets.QFrame.Sunken)
+        return separator
+
+    def add_to_grid(self, grid: QtWidgets.QGridLayout, row: int) -> int:
+        grid.addWidget(self.build_separator_widget(), row, 0, 1, 2)
+        return 1
+
+    def get_field(self):
+        return None
+
+
+class FullWidthButtonOptionUI(OptionUI):
+    def __init__(self, option: str, label_text: str, label_tooltip: Union[str, None]):
+        super().__init__(option=option)
+        self.label_text = label_text
+        self.label_tooltip = label_tooltip
+        self.button_widget = self.build_button_widget()
+
+    def build_button_widget(self):
+        button = FCButton(_(self.label_text))
+        if self.label_tooltip is not None:
+            button.setToolTip(_(self.label_tooltip))
+        return button
+
+    def add_to_grid(self, grid: QtWidgets.QGridLayout, row: int) -> int:
+        grid.addWidget(self.button_widget, row, 0, 1, 3)
+        return 1
+
+    def get_field(self):
+        return self.button_widget

appGUI/preferences/OptionsGroupUI.py

@@ -0,0 +1,77 @@
+# ##########################################################
+# FlatCAM: 2D Post-processing for Manufacturing            #
+# File by:  David Robertson (c)                            #
+# Date:     5/2020                                         #
+# License:  MIT Licence                                    #
+# ##########################################################
+
+from typing import Dict
+
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+from appGUI.preferences.OptionUI import OptionUI
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class OptionsGroupUI(QtWidgets.QGroupBox):
+    app = None
+
+    def __init__(self, title, parent=None):
+        # QtGui.QGroupBox.__init__(self, title, parent=parent)
+        super(OptionsGroupUI, self).__init__()
+        self.setStyleSheet("""
+        QGroupBox
+        {
+            font-size: 16px;
+            font-weight: bold;
+        }
+        """)
+
+        self.layout = QtWidgets.QVBoxLayout()
+        self.setLayout(self.layout)
+
+    def option_dict(self) -> Dict[str, OptionUI]:
+        # FIXME!
+        return {}
+
+
+class OptionsGroupUI2(OptionsGroupUI):
+
+    def __init__(self, **kwargs):
+        super().__init__(**kwargs)
+
+        self.grid = QtWidgets.QGridLayout()
+        self.layout.addLayout(self.grid)
+        self.grid.setColumnStretch(0, 0)
+        self.grid.setColumnStretch(1, 1)
+
+        self.options = self.build_options()
+
+        row = 0
+        for option in self.options:
+            row += option.add_to_grid(grid=self.grid, row=row)
+
+        self.layout.addStretch()
+
+    def build_options(self) -> [OptionUI]:
+        return []
+
+    def option_dict(self) -> Dict[str, OptionUI]:
+        result = {}
+        for optionui in self.options:
+            result[optionui.option] = optionui
+        return result

appGUI/preferences/PreferencesSectionUI.py

@@ -0,0 +1,41 @@
+from typing import Dict
+from PyQt5 import QtWidgets, QtCore
+
+from appGUI.ColumnarFlowLayout import ColumnarFlowLayout
+from appGUI.preferences.OptionUI import OptionUI
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+
+class PreferencesSectionUI(QtWidgets.QWidget):
+
+    def __init__(self, **kwargs):
+        super().__init__(**kwargs)
+        self.layout = ColumnarFlowLayout()  # QtWidgets.QHBoxLayout()
+        self.setLayout(self.layout)
+
+        self.groups = self.build_groups()
+        for group in self.groups:
+            group.setMinimumWidth(250)
+            self.layout.addWidget(group)
+
+    def build_groups(self) -> [OptionsGroupUI]:
+        return []
+
+    def option_dict(self) -> Dict[str, OptionUI]:
+        result = {}
+        for group in self.groups:
+            groupoptions = group.option_dict()
+            result.update(groupoptions)
+        return result
+
+    def build_tab(self):
+        scroll_area = QtWidgets.QScrollArea()
+        scroll_area.setWidget(self)
+        scroll_area.setWidgetResizable(True)
+        return scroll_area
+
+    def get_tab_id(self) -> str:
+        raise NotImplementedError
+
+    def get_tab_label(self) -> str:
+        raise NotImplementedError

appGUI/preferences/__init__.py

@@ -0,0 +1,15 @@
+from appGUI.GUIElements import *
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0

appGUI/preferences/cncjob/CNCJobAdvOptPrefGroupUI.py

@@ -0,0 +1,179 @@
+from PyQt5 import QtWidgets, QtGui
+from PyQt5.QtCore import QSettings, Qt
+
+from appGUI.GUIElements import FCTextArea, FCCheckBox, FCComboBox, FCSpinner, FCColorEntry
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class CNCJobAdvOptPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+        # OptionsGroupUI.__init__(self, "CNC Job Advanced Options Preferences", parent=None)
+        super(CNCJobAdvOptPrefGroupUI, self).__init__(self, parent=parent)
+        self.decimals = decimals
+
+        self.setTitle(str(_("CNC Job Adv. Options")))
+
+        # ## Export G-Code
+        self.export_gcode_label = QtWidgets.QLabel("<b>%s:</b>" % _("Export CNC Code"))
+        self.export_gcode_label.setToolTip(
+            _("Export and save G-Code to\n"
+              "make this object to a file.")
+        )
+        self.layout.addWidget(self.export_gcode_label)
+
+        # Prepend to G-Code
+        toolchangelabel = QtWidgets.QLabel('%s' % _('Toolchange G-Code'))
+        toolchangelabel.setToolTip(
+            _(
+                "Type here any G-Code commands you would\n"
+                "like to be executed when Toolchange event is encountered.\n"
+                "This will constitute a Custom Toolchange GCode,\n"
+                "or a Toolchange Macro.\n"
+                "The FlatCAM variables are surrounded by '%' symbol.\n\n"
+                "WARNING: it can be used only with a preprocessor file\n"
+                "that has 'toolchange_custom' in it's name and this is built\n"
+                "having as template the 'Toolchange Custom' posprocessor file."
+            )
+        )
+        self.layout.addWidget(toolchangelabel)
+
+        qsettings = QSettings("Open Source", "FlatCAM")
+        if qsettings.contains("textbox_font_size"):
+            tb_fsize = qsettings.value('textbox_font_size', type=int)
+        else:
+            tb_fsize = 10
+        font = QtGui.QFont()
+        font.setPointSize(tb_fsize)
+
+        self.toolchange_text = FCTextArea()
+        self.toolchange_text.setPlaceholderText(
+            _(
+                "Type here any G-Code commands you would "
+                "like to be executed when Toolchange event is encountered.\n"
+                "This will constitute a Custom Toolchange GCode, "
+                "or a Toolchange Macro.\n"
+                "The FlatCAM variables are surrounded by '%' symbol.\n"
+                "WARNING: it can be used only with a preprocessor file "
+                "that has 'toolchange_custom' in it's name."
+            )
+        )
+        self.layout.addWidget(self.toolchange_text)
+        self.toolchange_text.setFont(font)
+
+        hlay = QtWidgets.QHBoxLayout()
+        self.layout.addLayout(hlay)
+
+        # Toolchange Replacement GCode
+        self.toolchange_cb = FCCheckBox(label='%s' % _('Use Toolchange Macro'))
+        self.toolchange_cb.setToolTip(
+            _("Check this box if you want to use\n"
+              "a Custom Toolchange GCode (macro).")
+        )
+        hlay.addWidget(self.toolchange_cb)
+        hlay.addStretch()
+
+        hlay1 = QtWidgets.QHBoxLayout()
+        self.layout.addLayout(hlay1)
+
+        # Variable list
+        self.tc_variable_combo = FCComboBox()
+        self.tc_variable_combo.setToolTip(
+            _("A list of the FlatCAM variables that can be used\n"
+              "in the Toolchange event.\n"
+              "They have to be surrounded by the '%' symbol")
+        )
+        hlay1.addWidget(self.tc_variable_combo)
+
+        # Populate the Combo Box
+        variables = [_('Parameters'), 'tool', 'tooldia', 't_drills', 'x_toolchange', 'y_toolchange', 'z_toolchange',
+                     'z_cut', 'z_move', 'z_depthpercut', 'spindlespeed', 'dwelltime']
+        self.tc_variable_combo.addItems(variables)
+        self.tc_variable_combo.insertSeparator(1)
+
+        self.tc_variable_combo.setItemData(0, _("FlatCAM CNC parameters"), Qt.ToolTipRole)
+        fnt = QtGui.QFont()
+        fnt.setBold(True)
+        self.tc_variable_combo.setItemData(0, fnt, Qt.FontRole)
+
+        self.tc_variable_combo.setItemData(2, 'tool = %s' % _("tool number"), Qt.ToolTipRole)
+        self.tc_variable_combo.setItemData(3, 'tooldia = %s' % _("tool diameter"), Qt.ToolTipRole)
+        self.tc_variable_combo.setItemData(4, 't_drills = %s' % _("for Excellon, total number of drills"),
+                                           Qt.ToolTipRole)
+        self.tc_variable_combo.setItemData(5, 'x_toolchange = %s' % _("X coord for Toolchange"), Qt.ToolTipRole)
+        self.tc_variable_combo.setItemData(6, 'y_toolchange = %s' % _("Y coord for Toolchange"),
+                                           Qt.ToolTipRole)
+        self.tc_variable_combo.setItemData(7, 'z_toolchange = %s' % _("Z coord for Toolchange"), Qt.ToolTipRole)
+        self.tc_variable_combo.setItemData(8, 'z_cut = %s' % _("Z depth for the cut"), Qt.ToolTipRole)
+        self.tc_variable_combo.setItemData(9, 'z_move = %s' % _("Z height for travel"), Qt.ToolTipRole)
+        self.tc_variable_combo.setItemData(10, 'z_depthpercut = %s' % _("the step value for multidepth cut"),
+                                           Qt.ToolTipRole)
+        self.tc_variable_combo.setItemData(11, 'spindlesspeed = %s' % _("the value for the spindle speed"),
+                                           Qt.ToolTipRole)
+        self.tc_variable_combo.setItemData(12,
+                                           _("dwelltime = time to dwell to allow the spindle to reach it's set RPM"),
+                                           Qt.ToolTipRole)
+
+        # hlay1.addStretch()
+
+        # Insert Variable into the Toolchange G-Code Text Box
+        # self.tc_insert_buton = FCButton("Insert")
+        # self.tc_insert_buton.setToolTip(
+        #     "Insert the variable in the GCode Box\n"
+        #     "surrounded by the '%' symbol."
+        # )
+        # hlay1.addWidget(self.tc_insert_buton)
+
+        grid0 = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid0)
+
+        grid0.addWidget(QtWidgets.QLabel(''), 1, 0, 1, 2)
+
+        # Annotation Font Size
+        self.annotation_fontsize_label = QtWidgets.QLabel('%s:' % _("Annotation Size"))
+        self.annotation_fontsize_label.setToolTip(
+            _("The font size of the annotation text. In pixels.")
+        )
+        grid0.addWidget(self.annotation_fontsize_label, 2, 0)
+        self.annotation_fontsize_sp = FCSpinner()
+        self.annotation_fontsize_sp.set_range(0, 9999)
+
+        grid0.addWidget(self.annotation_fontsize_sp, 2, 1)
+        grid0.addWidget(QtWidgets.QLabel(''), 2, 2)
+
+        # Annotation Font Color
+        self.annotation_color_label = QtWidgets.QLabel('%s:' % _('Annotation Color'))
+        self.annotation_color_label.setToolTip(
+            _("Set the font color for the annotation texts.")
+        )
+        self.annotation_fontcolor_entry = FCColorEntry()
+
+        grid0.addWidget(self.annotation_color_label, 3, 0)
+        grid0.addWidget(self.annotation_fontcolor_entry, 3, 1)
+
+        grid0.addWidget(QtWidgets.QLabel(''), 3, 2)
+        self.layout.addStretch()
+
+        self.tc_variable_combo.currentIndexChanged[str].connect(self.on_cnc_custom_parameters)
+        self.annotation_fontcolor_entry.editingFinished.connect(self.on_annotation_fontcolor_entry)
+
+    def on_cnc_custom_parameters(self, signal_text):
+        if signal_text == 'Parameters':
+            return
+        else:
+            self.toolchange_text.insertPlainText('%%%s%%' % signal_text)
+
+    def on_annotation_fontcolor_entry(self):
+        self.app.defaults['cncjob_annotation_fontcolor'] = self.annotation_fontcolor_entry.get_value()

appGUI/preferences/cncjob/CNCJobGenPrefGroupUI.py

@@ -0,0 +1,270 @@
+from PyQt5 import QtWidgets, QtCore, QtGui
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import FCCheckBox, RadioSet, FCSpinner, FCDoubleSpinner, FCSliderWithSpinner, FCColorEntry
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class CNCJobGenPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+        # OptionsGroupUI.__init__(self, "CNC Job General Preferences", parent=None)
+        super(CNCJobGenPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("CNC Job General")))
+        self.decimals = decimals
+
+        # ## Plot options
+        self.plot_options_label = QtWidgets.QLabel("<b>%s:</b>" % _("Plot Options"))
+        self.layout.addWidget(self.plot_options_label)
+
+        grid0 = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid0)
+        grid0.setColumnStretch(0, 0)
+        grid0.setColumnStretch(1, 1)
+
+        # Plot CB
+        # self.plot_cb = QtWidgets.QCheckBox('Plot')
+        self.plot_cb = FCCheckBox(_('Plot Object'))
+        self.plot_cb.setToolTip(_("Plot (show) this object."))
+        grid0.addWidget(self.plot_cb, 0, 0, 1, 2)
+
+        # Plot Kind
+        self.cncplot_method_label = QtWidgets.QLabel('%s:' % _("Plot kind"))
+        self.cncplot_method_label.setToolTip(
+            _("This selects the kind of geometries on the canvas to plot.\n"
+              "Those can be either of type 'Travel' which means the moves\n"
+              "above the work piece or it can be of type 'Cut',\n"
+              "which means the moves that cut into the material.")
+        )
+
+        self.cncplot_method_radio = RadioSet([
+            {"label": _("All"), "value": "all"},
+            {"label": _("Travel"), "value": "travel"},
+            {"label": _("Cut"), "value": "cut"}
+        ], orientation='vertical')
+
+        grid0.addWidget(self.cncplot_method_label, 1, 0)
+        grid0.addWidget(self.cncplot_method_radio, 1, 1)
+        grid0.addWidget(QtWidgets.QLabel(''), 1, 2)
+
+        # Display Annotation
+        self.annotation_cb = FCCheckBox(_("Display Annotation"))
+        self.annotation_cb.setToolTip(
+            _("This selects if to display text annotation on the plot.\n"
+              "When checked it will display numbers in order for each end\n"
+              "of a travel line."
+              )
+        )
+
+        grid0.addWidget(self.annotation_cb, 2, 0, 1, 3)
+
+        # ###################################################################
+        # Number of circle steps for circular aperture linear approximation #
+        # ###################################################################
+        self.steps_per_circle_label = QtWidgets.QLabel('%s:' % _("Circle Steps"))
+        self.steps_per_circle_label.setToolTip(
+            _("The number of circle steps for <b>GCode</b> \n"
+              "circle and arc shapes linear approximation.")
+        )
+        grid0.addWidget(self.steps_per_circle_label, 3, 0)
+        self.steps_per_circle_entry = FCSpinner()
+        self.steps_per_circle_entry.set_range(0, 99999)
+        grid0.addWidget(self.steps_per_circle_entry, 3, 1)
+
+        # Tool dia for plot
+        tdlabel = QtWidgets.QLabel('%s:' % _('Travel dia'))
+        tdlabel.setToolTip(
+            _("The width of the travel lines to be\n"
+              "rendered in the plot.")
+        )
+        self.tooldia_entry = FCDoubleSpinner()
+        self.tooldia_entry.set_range(0, 99999)
+        self.tooldia_entry.set_precision(self.decimals)
+        self.tooldia_entry.setSingleStep(0.1)
+        self.tooldia_entry.setWrapping(True)
+
+        grid0.addWidget(tdlabel, 4, 0)
+        grid0.addWidget(self.tooldia_entry, 4, 1)
+
+        # add a space
+        grid0.addWidget(QtWidgets.QLabel('<b>%s:</b>' % _("G-code Decimals")), 5, 0, 1, 2)
+
+        # Number of decimals to use in GCODE coordinates
+        cdeclabel = QtWidgets.QLabel('%s:' % _('Coordinates'))
+        cdeclabel.setToolTip(
+            _("The number of decimals to be used for \n"
+              "the X, Y, Z coordinates in CNC code (GCODE, etc.)")
+        )
+        self.coords_dec_entry = FCSpinner()
+        self.coords_dec_entry.set_range(0, 9)
+        self.coords_dec_entry.setWrapping(True)
+
+        grid0.addWidget(cdeclabel, 6, 0)
+        grid0.addWidget(self.coords_dec_entry, 6, 1)
+
+        # Number of decimals to use in GCODE feedrate
+        frdeclabel = QtWidgets.QLabel('%s:' % _('Feedrate'))
+        frdeclabel.setToolTip(
+            _("The number of decimals to be used for \n"
+              "the Feedrate parameter in CNC code (GCODE, etc.)")
+        )
+        self.fr_dec_entry = FCSpinner()
+        self.fr_dec_entry.set_range(0, 9)
+        self.fr_dec_entry.setWrapping(True)
+
+        grid0.addWidget(frdeclabel, 7, 0)
+        grid0.addWidget(self.fr_dec_entry, 7, 1)
+
+        # The type of coordinates used in the Gcode: Absolute or Incremental
+        coords_type_label = QtWidgets.QLabel('%s:' % _('Coordinates type'))
+        coords_type_label.setToolTip(
+            _("The type of coordinates to be used in Gcode.\n"
+              "Can be:\n"
+              "- Absolute G90 -> the reference is the origin x=0, y=0\n"
+              "- Incremental G91 -> the reference is the previous position")
+        )
+        self.coords_type_radio = RadioSet([
+            {"label": _("Absolute G90"), "value": "G90"},
+            {"label": _("Incremental G91"), "value": "G91"}
+        ], orientation='vertical', stretch=False)
+        grid0.addWidget(coords_type_label, 8, 0)
+        grid0.addWidget(self.coords_type_radio, 8, 1)
+
+        # hidden for the time being, until implemented
+        coords_type_label.hide()
+        self.coords_type_radio.hide()
+
+        # Line Endings
+        self.line_ending_cb = FCCheckBox(_("Force Windows style line-ending"))
+        self.line_ending_cb.setToolTip(
+            _("When checked will force a Windows style line-ending\n"
+              "(\\r\\n) on non-Windows OS's.")
+        )
+
+        grid0.addWidget(self.line_ending_cb, 9, 0, 1, 3)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line, 12, 0, 1, 2)
+
+        # Travel Line Color
+        self.travel_color_label = QtWidgets.QLabel('<b>%s</b>' % _('Travel Line Color'))
+        grid0.addWidget(self.travel_color_label, 13, 0, 1, 2)
+
+        # Plot Line Color
+        self.tline_color_label = QtWidgets.QLabel('%s:' % _('Outline'))
+        self.tline_color_label.setToolTip(
+            _("Set the travel line color for plotted objects.")
+        )
+        self.tline_color_entry = FCColorEntry()
+
+        grid0.addWidget(self.tline_color_label, 14, 0)
+        grid0.addWidget(self.tline_color_entry, 14, 1)
+
+        # Plot Fill Color
+        self.tfill_color_label = QtWidgets.QLabel('%s:' % _('Fill'))
+        self.tfill_color_label.setToolTip(
+            _("Set the fill color for plotted objects.\n"
+              "First 6 digits are the color and the last 2\n"
+              "digits are for alpha (transparency) level.")
+        )
+        self.tfill_color_entry = FCColorEntry()
+
+        grid0.addWidget(self.tfill_color_label, 15, 0)
+        grid0.addWidget(self.tfill_color_entry, 15, 1)
+
+        # Plot Fill Transparency Level
+        self.cncjob_alpha_label = QtWidgets.QLabel('%s:' % _('Alpha'))
+        self.cncjob_alpha_label.setToolTip(
+            _("Set the fill transparency for plotted objects.")
+        )
+        self.cncjob_alpha_entry = FCSliderWithSpinner(0, 255, 1)
+
+        grid0.addWidget(self.cncjob_alpha_label, 16, 0)
+        grid0.addWidget(self.cncjob_alpha_entry, 16, 1)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line, 17, 0, 1, 2)
+
+        # CNCJob Object Color
+        self.cnc_color_label = QtWidgets.QLabel('<b>%s</b>' % _('Object Color'))
+        grid0.addWidget(self.cnc_color_label, 18, 0, 1, 2)
+
+        # Plot Line Color
+        self.line_color_label = QtWidgets.QLabel('%s:' % _('Outline'))
+        self.line_color_label.setToolTip(
+            _("Set the color for plotted objects.")
+        )
+        self.line_color_entry = FCColorEntry()
+
+        grid0.addWidget(self.line_color_label, 19, 0)
+        grid0.addWidget(self.line_color_entry, 19, 1)
+
+        # Plot Fill Color
+        self.fill_color_label = QtWidgets.QLabel('%s:' % _('Fill'))
+        self.fill_color_label.setToolTip(
+            _("Set the fill color for plotted objects.\n"
+              "First 6 digits are the color and the last 2\n"
+              "digits are for alpha (transparency) level.")
+        )
+        self.fill_color_entry = FCColorEntry()
+
+        grid0.addWidget(self.fill_color_label, 20, 0)
+        grid0.addWidget(self.fill_color_entry, 20, 1)
+
+        self.layout.addStretch()
+
+        # Setting plot colors signals
+        self.tline_color_entry.editingFinished.connect(self.on_tline_color_entry)
+        self.tfill_color_entry.editingFinished.connect(self.on_tfill_color_entry)
+
+        self.cncjob_alpha_entry.valueChanged.connect(self.on_cncjob_alpha_changed)  # alpha
+
+        self.line_color_entry.editingFinished.connect(self.on_line_color_entry)
+        self.fill_color_entry.editingFinished.connect(self.on_fill_color_entry)
+
+    # ------------------------------------------------------
+    # Setting travel colors handlers
+    # ------------------------------------------------------
+    def on_tfill_color_entry(self):
+        self.app.defaults['cncjob_travel_fill'] = self.tfill_color_entry.get_value()[:7] + \
+                                                  self.app.defaults['cncjob_travel_fill'][7:9]
+
+    def on_tline_color_entry(self):
+        self.app.defaults['cncjob_travel_line'] = self.tline_color_entry.get_value()[:7] + \
+                                                  self.app.defaults['cncjob_travel_line'][7:9]
+
+    def on_cncjob_alpha_changed(self, spinner_value):
+        self.app.defaults['cncjob_travel_fill'] = \
+            self.app.defaults['cncjob_travel_fill'][:7] + \
+            (hex(spinner_value)[2:] if int(hex(spinner_value)[2:], 16) > 0 else '00')
+        self.app.defaults['cncjob_travel_line'] = \
+            self.app.defaults['cncjob_travel_line'][:7] + \
+            (hex(spinner_value)[2:] if int(hex(spinner_value)[2:], 16) > 0 else '00')
+
+    # ------------------------------------------------------
+    # Setting plot colors handlers
+    # ------------------------------------------------------
+    def on_fill_color_entry(self):
+        self.app.defaults['cncjob_plot_fill'] = self.fill_color_entry.get_value()[:7] + \
+                                                  self.app.defaults['cncjob_plot_fill'][7:9]
+
+    def on_line_color_entry(self):
+        self.app.defaults['cncjob_plot_line'] = self.line_color_entry.get_value()[:7] + \
+                                                  self.app.defaults['cncjob_plot_line'][7:9]

appGUI/preferences/cncjob/CNCJobOptPrefGroupUI.py

@@ -0,0 +1,80 @@
+from PyQt5 import QtWidgets, QtGui
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import FCTextArea
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class CNCJobOptPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+        # OptionsGroupUI.__init__(self, "CNC Job Options Preferences", parent=None)
+        super(CNCJobOptPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("CNC Job Options")))
+        self.decimals = decimals
+
+        # ## Export G-Code
+        self.export_gcode_label = QtWidgets.QLabel("<b>%s:</b>" % _("Export G-Code"))
+        self.export_gcode_label.setToolTip(
+            _("Export and save G-Code to\n"
+              "make this object to a file.")
+        )
+        self.layout.addWidget(self.export_gcode_label)
+
+        qsettings = QSettings("Open Source", "FlatCAM")
+        if qsettings.contains("textbox_font_size"):
+            tb_fsize = qsettings.value('textbox_font_size', type=int)
+        else:
+            tb_fsize = 10
+        font = QtGui.QFont()
+        font.setPointSize(tb_fsize)
+
+        # Prepend to G-Code
+        prependlabel = QtWidgets.QLabel('%s:' % _('Prepend to G-Code'))
+        prependlabel.setToolTip(
+            _("Type here any G-Code commands you would\n"
+              "like to add at the beginning of the G-Code file.")
+        )
+        self.layout.addWidget(prependlabel)
+
+        self.prepend_text = FCTextArea()
+        self.prepend_text.setPlaceholderText(
+            _("Type here any G-Code commands you would "
+              "like to add at the beginning of the G-Code file.")
+        )
+        self.layout.addWidget(self.prepend_text)
+        self.prepend_text.setFont(font)
+
+        # Append text to G-Code
+        appendlabel = QtWidgets.QLabel('%s:' % _('Append to G-Code'))
+        appendlabel.setToolTip(
+            _("Type here any G-Code commands you would\n"
+              "like to append to the generated file.\n"
+              "I.e.: M2 (End of program)")
+        )
+        self.layout.addWidget(appendlabel)
+
+        self.append_text = FCTextArea()
+        self.append_text.setPlaceholderText(
+            _("Type here any G-Code commands you would "
+              "like to append to the generated file.\n"
+              "I.e.: M2 (End of program)")
+        )
+        self.layout.addWidget(self.append_text)
+        self.append_text.setFont(font)
+
+        self.layout.addStretch()

appGUI/preferences/cncjob/CNCJobPreferencesUI.py

@@ -0,0 +1,27 @@
+from PyQt5 import QtWidgets
+
+from appGUI.preferences.cncjob.CNCJobAdvOptPrefGroupUI import CNCJobAdvOptPrefGroupUI
+from appGUI.preferences.cncjob.CNCJobOptPrefGroupUI import CNCJobOptPrefGroupUI
+from appGUI.preferences.cncjob.CNCJobGenPrefGroupUI import CNCJobGenPrefGroupUI
+
+
+class CNCJobPreferencesUI(QtWidgets.QWidget):
+
+    def __init__(self, decimals, parent=None):
+        QtWidgets.QWidget.__init__(self, parent=parent)
+        self.layout = QtWidgets.QHBoxLayout()
+        self.setLayout(self.layout)
+        self.decimals = decimals
+
+        self.cncjob_gen_group = CNCJobGenPrefGroupUI(decimals=self.decimals)
+        self.cncjob_gen_group.setMinimumWidth(260)
+        self.cncjob_opt_group = CNCJobOptPrefGroupUI(decimals=self.decimals)
+        self.cncjob_opt_group.setMinimumWidth(260)
+        self.cncjob_adv_opt_group = CNCJobAdvOptPrefGroupUI(decimals=self.decimals)
+        self.cncjob_adv_opt_group.setMinimumWidth(260)
+
+        self.layout.addWidget(self.cncjob_gen_group)
+        self.layout.addWidget(self.cncjob_opt_group)
+        self.layout.addWidget(self.cncjob_adv_opt_group)
+
+        self.layout.addStretch()

appGUI/preferences/excellon/ExcellonAdvOptPrefGroupUI.py

@@ -0,0 +1,155 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import FCDoubleSpinner, RadioSet, FCCheckBox, NumericalEvalTupleEntry, NumericalEvalEntry
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class ExcellonAdvOptPrefGroupUI(OptionsGroupUI):
+
+    def __init__(self, decimals=4, parent=None):
+        # OptionsGroupUI.__init__(self, "Excellon Advanced Options", parent=parent)
+        super(ExcellonAdvOptPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("Excellon Adv. Options")))
+        self.decimals = decimals
+
+        # #######################
+        # ## ADVANCED OPTIONS ###
+        # #######################
+
+        self.exc_label = QtWidgets.QLabel('<b>%s:</b>' % _('Advanced Options'))
+        self.exc_label.setToolTip(
+            _("A list of Excellon advanced parameters.\n"
+              "Those parameters are available only for\n"
+              "Advanced App. Level.")
+        )
+        self.layout.addWidget(self.exc_label)
+
+        grid1 = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid1)
+
+        # Offset Z
+        offsetlabel = QtWidgets.QLabel('%s:' % _('Offset Z'))
+        offsetlabel.setToolTip(
+            _("Some drill bits (the larger ones) need to drill deeper\n"
+              "to create the desired exit hole diameter due of the tip shape.\n"
+              "The value here can compensate the Cut Z parameter."))
+        self.offset_entry = FCDoubleSpinner()
+        self.offset_entry.set_precision(self.decimals)
+        self.offset_entry.set_range(-999.9999, 999.9999)
+
+        grid1.addWidget(offsetlabel, 0, 0)
+        grid1.addWidget(self.offset_entry, 0, 1)
+
+        # ToolChange X,Y
+        toolchange_xy_label = QtWidgets.QLabel('%s:' % _('Toolchange X,Y'))
+        toolchange_xy_label.setToolTip(
+            _("Toolchange X,Y position.")
+        )
+        self.toolchangexy_entry = NumericalEvalTupleEntry(border_color='#0069A9')
+
+        grid1.addWidget(toolchange_xy_label, 1, 0)
+        grid1.addWidget(self.toolchangexy_entry, 1, 1)
+
+        # Start Z
+        startzlabel = QtWidgets.QLabel('%s:' % _('Start Z'))
+        startzlabel.setToolTip(
+            _("Height of the tool just after start.\n"
+              "Delete the value if you don't need this feature.")
+        )
+        self.estartz_entry = NumericalEvalEntry(border_color='#0069A9')
+
+        grid1.addWidget(startzlabel, 2, 0)
+        grid1.addWidget(self.estartz_entry, 2, 1)
+
+        # Feedrate Rapids
+        fr_rapid_label = QtWidgets.QLabel('%s:' % _('Feedrate Rapids'))
+        fr_rapid_label.setToolTip(
+            _("Tool speed while drilling\n"
+              "(in units per minute).\n"
+              "This is for the rapid move G00.\n"
+              "It is useful only for Marlin,\n"
+              "ignore for any other cases.")
+        )
+        self.feedrate_rapid_entry = FCDoubleSpinner()
+        self.feedrate_rapid_entry.set_precision(self.decimals)
+        self.feedrate_rapid_entry.set_range(0, 99999.9999)
+
+        grid1.addWidget(fr_rapid_label, 3, 0)
+        grid1.addWidget(self.feedrate_rapid_entry, 3, 1)
+
+        # Probe depth
+        self.pdepth_label = QtWidgets.QLabel('%s:' % _("Probe Z depth"))
+        self.pdepth_label.setToolTip(
+            _("The maximum depth that the probe is allowed\n"
+              "to probe. Negative value, in current units.")
+        )
+        self.pdepth_entry = FCDoubleSpinner()
+        self.pdepth_entry.set_precision(self.decimals)
+        self.pdepth_entry.set_range(-99999.9999, 0.0000)
+
+        grid1.addWidget(self.pdepth_label, 4, 0)
+        grid1.addWidget(self.pdepth_entry, 4, 1)
+
+        # Probe feedrate
+        self.feedrate_probe_label = QtWidgets.QLabel('%s:' % _("Feedrate Probe"))
+        self.feedrate_probe_label.setToolTip(
+           _("The feedrate used while the probe is probing.")
+        )
+        self.feedrate_probe_entry = FCDoubleSpinner()
+        self.feedrate_probe_entry.set_precision(self.decimals)
+        self.feedrate_probe_entry.set_range(0, 99999.9999)
+
+        grid1.addWidget(self.feedrate_probe_label, 5, 0)
+        grid1.addWidget(self.feedrate_probe_entry, 5, 1)
+
+        # Spindle direction
+        spindle_dir_label = QtWidgets.QLabel('%s:' % _('Spindle direction'))
+        spindle_dir_label.setToolTip(
+            _("This sets the direction that the spindle is rotating.\n"
+              "It can be either:\n"
+              "- CW = clockwise or\n"
+              "- CCW = counter clockwise")
+        )
+
+        self.spindledir_radio = RadioSet([{'label': _('CW'), 'value': 'CW'},
+                                          {'label': _('CCW'), 'value': 'CCW'}])
+        grid1.addWidget(spindle_dir_label, 6, 0)
+        grid1.addWidget(self.spindledir_radio, 6, 1)
+
+        self.fplunge_cb = FCCheckBox('%s' % _('Fast Plunge'))
+        self.fplunge_cb.setToolTip(
+            _("By checking this, the vertical move from\n"
+              "Z_Toolchange to Z_move is done with G0,\n"
+              "meaning the fastest speed available.\n"
+              "WARNING: the move is done at Toolchange X,Y coords.")
+        )
+        grid1.addWidget(self.fplunge_cb, 7, 0, 1, 2)
+
+        self.fretract_cb = FCCheckBox('%s' % _('Fast Retract'))
+        self.fretract_cb.setToolTip(
+            _("Exit hole strategy.\n"
+              " - When uncheked, while exiting the drilled hole the drill bit\n"
+              "will travel slow, with set feedrate (G1), up to zero depth and then\n"
+              "travel as fast as possible (G0) to the Z Move (travel height).\n"
+              " - When checked the travel from Z cut (cut depth) to Z_move\n"
+              "(travel height) is done as fast as possible (G0) in one move.")
+        )
+
+        grid1.addWidget(self.fretract_cb, 8, 0, 1, 2)
+
+        self.layout.addStretch()

appGUI/preferences/excellon/ExcellonEditorPrefGroupUI.py

@@ -0,0 +1,306 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import FCSpinner, FCDoubleSpinner, RadioSet
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class ExcellonEditorPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+        super(ExcellonEditorPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("Excellon Editor")))
+        self.decimals = decimals
+
+        # Excellon Editor Parameters
+        self.param_label = QtWidgets.QLabel("<b>%s:</b>" % _("Parameters"))
+        self.param_label.setToolTip(
+            _("A list of Excellon Editor parameters.")
+        )
+        self.layout.addWidget(self.param_label)
+
+        grid0 = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid0)
+
+        # Selection Limit
+        self.sel_limit_label = QtWidgets.QLabel('%s:' % _("Selection limit"))
+        self.sel_limit_label.setToolTip(
+            _("Set the number of selected Excellon geometry\n"
+              "items above which the utility geometry\n"
+              "becomes just a selection rectangle.\n"
+              "Increases the performance when moving a\n"
+              "large number of geometric elements.")
+        )
+        self.sel_limit_entry = FCSpinner()
+        self.sel_limit_entry.set_range(0, 99999)
+
+        grid0.addWidget(self.sel_limit_label, 0, 0)
+        grid0.addWidget(self.sel_limit_entry, 0, 1)
+
+        # New Diameter
+        self.addtool_entry_lbl = QtWidgets.QLabel('%s:' % _('New Dia'))
+        self.addtool_entry_lbl.setToolTip(
+            _("Diameter for the new tool")
+        )
+
+        self.addtool_entry = FCDoubleSpinner()
+        self.addtool_entry.set_range(0.000001, 99.9999)
+        self.addtool_entry.set_precision(self.decimals)
+
+        grid0.addWidget(self.addtool_entry_lbl, 1, 0)
+        grid0.addWidget(self.addtool_entry, 1, 1)
+
+        # Number of drill holes in a drill array
+        self.drill_array_size_label = QtWidgets.QLabel('%s:' % _('Nr of drills'))
+        self.drill_array_size_label.setToolTip(
+            _("Specify how many drills to be in the array.")
+        )
+        # self.drill_array_size_label.setMinimumWidth(100)
+
+        self.drill_array_size_entry = FCSpinner()
+        self.drill_array_size_entry.set_range(0, 9999)
+
+        grid0.addWidget(self.drill_array_size_label, 2, 0)
+        grid0.addWidget(self.drill_array_size_entry, 2, 1)
+
+        self.drill_array_linear_label = QtWidgets.QLabel('<b>%s:</b>' % _('Linear Drill Array'))
+        grid0.addWidget(self.drill_array_linear_label, 3, 0, 1, 2)
+
+        # Linear Drill Array direction
+        self.drill_axis_label = QtWidgets.QLabel('%s:' % _('Linear Direction'))
+        self.drill_axis_label.setToolTip(
+            _("Direction on which the linear array is oriented:\n"
+              "- 'X' - horizontal axis \n"
+              "- 'Y' - vertical axis or \n"
+              "- 'Angle' - a custom angle for the array inclination")
+        )
+        # self.drill_axis_label.setMinimumWidth(100)
+        self.drill_axis_radio = RadioSet([{'label': _('X'), 'value': 'X'},
+                                          {'label': _('Y'), 'value': 'Y'},
+                                          {'label': _('Angle'), 'value': 'A'}])
+
+        grid0.addWidget(self.drill_axis_label, 4, 0)
+        grid0.addWidget(self.drill_axis_radio, 4, 1)
+
+        # Linear Drill Array pitch distance
+        self.drill_pitch_label = QtWidgets.QLabel('%s:' % _('Pitch'))
+        self.drill_pitch_label.setToolTip(
+            _("Pitch = Distance between elements of the array.")
+        )
+        # self.drill_pitch_label.setMinimumWidth(100)
+        self.drill_pitch_entry = FCDoubleSpinner()
+        self.drill_pitch_entry.set_range(0, 99999.9999)
+        self.drill_pitch_entry.set_precision(self.decimals)
+
+        grid0.addWidget(self.drill_pitch_label, 5, 0)
+        grid0.addWidget(self.drill_pitch_entry, 5, 1)
+
+        # Linear Drill Array custom angle
+        self.drill_angle_label = QtWidgets.QLabel('%s:' % _('Angle'))
+        self.drill_angle_label.setToolTip(
+            _("Angle at which each element in circular array is placed.")
+        )
+        self.drill_angle_entry = FCDoubleSpinner()
+        self.drill_pitch_entry.set_range(-360, 360)
+        self.drill_pitch_entry.set_precision(self.decimals)
+        self.drill_angle_entry.setWrapping(True)
+        self.drill_angle_entry.setSingleStep(5)
+
+        grid0.addWidget(self.drill_angle_label, 6, 0)
+        grid0.addWidget(self.drill_angle_entry, 6, 1)
+
+        self.drill_array_circ_label = QtWidgets.QLabel('<b>%s:</b>' % _('Circular Drill Array'))
+        grid0.addWidget(self.drill_array_circ_label, 7, 0, 1, 2)
+
+        # Circular Drill Array direction
+        self.drill_circular_direction_label = QtWidgets.QLabel('%s:' % _('Circular Direction'))
+        self.drill_circular_direction_label.setToolTip(
+            _("Direction for circular array.\n"
+              "Can be CW = clockwise or CCW = counter clockwise.")
+        )
+
+        self.drill_circular_dir_radio = RadioSet([{'label': _('CW'), 'value': 'CW'},
+                                                  {'label': _('CCW'), 'value': 'CCW'}])
+
+        grid0.addWidget(self.drill_circular_direction_label, 8, 0)
+        grid0.addWidget(self.drill_circular_dir_radio, 8, 1)
+
+        # Circular Drill Array Angle
+        self.drill_circular_angle_label = QtWidgets.QLabel('%s:' % _('Circular Angle'))
+        self.drill_circular_angle_label.setToolTip(
+            _("Angle at which each element in circular array is placed.")
+        )
+        self.drill_circular_angle_entry = FCDoubleSpinner()
+        self.drill_circular_angle_entry.set_range(-360, 360)
+        self.drill_circular_angle_entry.set_precision(self.decimals)
+        self.drill_circular_angle_entry.setWrapping(True)
+        self.drill_circular_angle_entry.setSingleStep(5)
+
+        grid0.addWidget(self.drill_circular_angle_label, 9, 0)
+        grid0.addWidget(self.drill_circular_angle_entry, 9, 1)
+
+        # ##### SLOTS #####
+        # #################
+        self.drill_array_circ_label = QtWidgets.QLabel('<b>%s:</b>' % _('Slots'))
+        grid0.addWidget(self.drill_array_circ_label, 10, 0, 1, 2)
+
+        # Slot length
+        self.slot_length_label = QtWidgets.QLabel('%s:' % _('Length'))
+        self.slot_length_label.setToolTip(
+            _("Length = The length of the slot.")
+        )
+        self.slot_length_label.setMinimumWidth(100)
+
+        self.slot_length_entry = FCDoubleSpinner()
+        self.slot_length_entry.set_range(0, 99999)
+        self.slot_length_entry.set_precision(self.decimals)
+        self.slot_length_entry.setWrapping(True)
+        self.slot_length_entry.setSingleStep(1)
+
+        grid0.addWidget(self.slot_length_label, 11, 0)
+        grid0.addWidget(self.slot_length_entry, 11, 1)
+
+        # Slot direction
+        self.slot_axis_label = QtWidgets.QLabel('%s:' % _('Direction'))
+        self.slot_axis_label.setToolTip(
+            _("Direction on which the slot is oriented:\n"
+              "- 'X' - horizontal axis \n"
+              "- 'Y' - vertical axis or \n"
+              "- 'Angle' - a custom angle for the slot inclination")
+        )
+        self.slot_axis_label.setMinimumWidth(100)
+
+        self.slot_axis_radio = RadioSet([{'label': _('X'), 'value': 'X'},
+                                         {'label': _('Y'), 'value': 'Y'},
+                                         {'label': _('Angle'), 'value': 'A'}])
+        grid0.addWidget(self.slot_axis_label, 12, 0)
+        grid0.addWidget(self.slot_axis_radio, 12, 1)
+
+        # Slot custom angle
+        self.slot_angle_label = QtWidgets.QLabel('%s:' % _('Angle'))
+        self.slot_angle_label.setToolTip(
+            _("Angle at which the slot is placed.\n"
+              "The precision is of max 2 decimals.\n"
+              "Min value is: -359.99 degrees.\n"
+              "Max value is:  360.00 degrees.")
+        )
+        self.slot_angle_label.setMinimumWidth(100)
+
+        self.slot_angle_spinner = FCDoubleSpinner()
+        self.slot_angle_spinner.set_precision(self.decimals)
+        self.slot_angle_spinner.setWrapping(True)
+        self.slot_angle_spinner.setRange(-359.99, 360.00)
+        self.slot_angle_spinner.setSingleStep(5)
+
+        grid0.addWidget(self.slot_angle_label, 13, 0)
+        grid0.addWidget(self.slot_angle_spinner, 13, 1)
+
+        # #### SLOTS ARRAY #######
+        # ########################
+
+        self.slot_array_linear_label = QtWidgets.QLabel('<b>%s:</b>' % _('Linear Slot Array'))
+        grid0.addWidget(self.slot_array_linear_label, 14, 0, 1, 2)
+
+        # Number of slot holes in a drill array
+        self.slot_array_size_label = QtWidgets.QLabel('%s:' % _('Nr of slots'))
+        self.drill_array_size_label.setToolTip(
+            _("Specify how many slots to be in the array.")
+        )
+        # self.slot_array_size_label.setMinimumWidth(100)
+
+        self.slot_array_size_entry = FCSpinner()
+        self.slot_array_size_entry.set_range(0, 999999)
+
+        grid0.addWidget(self.slot_array_size_label, 15, 0)
+        grid0.addWidget(self.slot_array_size_entry, 15, 1)
+
+        # Linear Slot Array direction
+        self.slot_array_axis_label = QtWidgets.QLabel('%s:' % _('Linear Direction'))
+        self.slot_array_axis_label.setToolTip(
+            _("Direction on which the linear array is oriented:\n"
+              "- 'X' - horizontal axis \n"
+              "- 'Y' - vertical axis or \n"
+              "- 'Angle' - a custom angle for the array inclination")
+        )
+        # self.slot_axis_label.setMinimumWidth(100)
+        self.slot_array_axis_radio = RadioSet([{'label': _('X'), 'value': 'X'},
+                                               {'label': _('Y'), 'value': 'Y'},
+                                               {'label': _('Angle'), 'value': 'A'}])
+
+        grid0.addWidget(self.slot_array_axis_label, 16, 0)
+        grid0.addWidget(self.slot_array_axis_radio, 16, 1)
+
+        # Linear Slot Array pitch distance
+        self.slot_array_pitch_label = QtWidgets.QLabel('%s:' % _('Pitch'))
+        self.slot_array_pitch_label.setToolTip(
+            _("Pitch = Distance between elements of the array.")
+        )
+        # self.drill_pitch_label.setMinimumWidth(100)
+        self.slot_array_pitch_entry = FCDoubleSpinner()
+        self.slot_array_pitch_entry.set_precision(self.decimals)
+        self.slot_array_pitch_entry.setWrapping(True)
+        self.slot_array_pitch_entry.setRange(0, 999999)
+        self.slot_array_pitch_entry.setSingleStep(1)
+
+        grid0.addWidget(self.slot_array_pitch_label, 17, 0)
+        grid0.addWidget(self.slot_array_pitch_entry, 17, 1)
+
+        # Linear Slot Array custom angle
+        self.slot_array_angle_label = QtWidgets.QLabel('%s:' % _('Angle'))
+        self.slot_array_angle_label.setToolTip(
+            _("Angle at which each element in circular array is placed.")
+        )
+        self.slot_array_angle_entry = FCDoubleSpinner()
+        self.slot_array_angle_entry.set_precision(self.decimals)
+        self.slot_array_angle_entry.setWrapping(True)
+        self.slot_array_angle_entry.setRange(-360, 360)
+        self.slot_array_angle_entry.setSingleStep(5)
+
+        grid0.addWidget(self.slot_array_angle_label, 18, 0)
+        grid0.addWidget(self.slot_array_angle_entry, 18, 1)
+
+        self.slot_array_circ_label = QtWidgets.QLabel('<b>%s:</b>' % _('Circular Slot Array'))
+        grid0.addWidget(self.slot_array_circ_label, 19, 0, 1, 2)
+
+        # Circular Slot Array direction
+        self.slot_array_circular_direction_label = QtWidgets.QLabel('%s:' % _('Circular Direction'))
+        self.slot_array_circular_direction_label.setToolTip(
+            _("Direction for circular array.\n"
+              "Can be CW = clockwise or CCW = counter clockwise.")
+        )
+
+        self.slot_array_circular_dir_radio = RadioSet([{'label': _('CW'), 'value': 'CW'},
+                                                       {'label': _('CCW'), 'value': 'CCW'}])
+
+        grid0.addWidget(self.slot_array_circular_direction_label, 20, 0)
+        grid0.addWidget(self.slot_array_circular_dir_radio, 20, 1)
+
+        # Circular Slot Array Angle
+        self.slot_array_circular_angle_label = QtWidgets.QLabel('%s:' % _('Circular Angle'))
+        self.slot_array_circular_angle_label.setToolTip(
+            _("Angle at which each element in circular array is placed.")
+        )
+        self.slot_array_circular_angle_entry = FCDoubleSpinner()
+        self.slot_array_circular_angle_entry.set_precision(self.decimals)
+        self.slot_array_circular_angle_entry.setWrapping(True)
+        self.slot_array_circular_angle_entry.setRange(-360, 360)
+        self.slot_array_circular_angle_entry.setSingleStep(5)
+
+        grid0.addWidget(self.slot_array_circular_angle_label, 21, 0)
+        grid0.addWidget(self.slot_array_circular_angle_entry, 21, 1)
+
+        self.layout.addStretch()

appGUI/preferences/excellon/ExcellonExpPrefGroupUI.py

@@ -0,0 +1,168 @@
+from PyQt5 import QtWidgets, QtCore
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import RadioSet, FCSpinner
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class ExcellonExpPrefGroupUI(OptionsGroupUI):
+
+    def __init__(self, decimals=4, parent=None):
+        super(ExcellonExpPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("Excellon Export")))
+        self.decimals = decimals
+
+        # Plot options
+        self.export_options_label = QtWidgets.QLabel("<b>%s:</b>" % _("Export Options"))
+        self.export_options_label.setToolTip(
+            _("The parameters set here are used in the file exported\n"
+              "when using the File -> Export -> Export Excellon menu entry.")
+        )
+        self.layout.addWidget(self.export_options_label)
+
+        form = QtWidgets.QFormLayout()
+        self.layout.addLayout(form)
+
+        # Excellon Units
+        self.excellon_units_label = QtWidgets.QLabel('%s:' % _('Units'))
+        self.excellon_units_label.setToolTip(
+            _("The units used in the Excellon file.")
+        )
+
+        self.excellon_units_radio = RadioSet([{'label': _('INCH'), 'value': 'INCH'},
+                                              {'label': _('MM'), 'value': 'METRIC'}])
+        self.excellon_units_radio.setToolTip(
+            _("The units used in the Excellon file.")
+        )
+
+        form.addRow(self.excellon_units_label, self.excellon_units_radio)
+
+        # Excellon non-decimal format
+        self.digits_label = QtWidgets.QLabel("%s:" % _("Int/Decimals"))
+        self.digits_label.setToolTip(
+            _("The NC drill files, usually named Excellon files\n"
+              "are files that can be found in different formats.\n"
+              "Here we set the format used when the provided\n"
+              "coordinates are not using period.")
+        )
+
+        hlay1 = QtWidgets.QHBoxLayout()
+
+        self.format_whole_entry = FCSpinner()
+        self.format_whole_entry.set_range(0, 9)
+        self.format_whole_entry.setMinimumWidth(30)
+        self.format_whole_entry.setToolTip(
+            _("This numbers signify the number of digits in\n"
+              "the whole part of Excellon coordinates.")
+        )
+        hlay1.addWidget(self.format_whole_entry, QtCore.Qt.AlignLeft)
+
+        excellon_separator_label = QtWidgets.QLabel(':')
+        excellon_separator_label.setFixedWidth(5)
+        hlay1.addWidget(excellon_separator_label, QtCore.Qt.AlignLeft)
+
+        self.format_dec_entry = FCSpinner()
+        self.format_dec_entry.set_range(0, 9)
+        self.format_dec_entry.setMinimumWidth(30)
+        self.format_dec_entry.setToolTip(
+            _("This numbers signify the number of digits in\n"
+              "the decimal part of Excellon coordinates.")
+        )
+        hlay1.addWidget(self.format_dec_entry, QtCore.Qt.AlignLeft)
+        hlay1.addStretch()
+
+        form.addRow(self.digits_label, hlay1)
+
+        # Select the Excellon Format
+        self.format_label = QtWidgets.QLabel("%s:" % _("Format"))
+        self.format_label.setToolTip(
+            _("Select the kind of coordinates format used.\n"
+              "Coordinates can be saved with decimal point or without.\n"
+              "When there is no decimal point, it is required to specify\n"
+              "the number of digits for integer part and the number of decimals.\n"
+              "Also it will have to be specified if LZ = leading zeros are kept\n"
+              "or TZ = trailing zeros are kept.")
+        )
+        self.format_radio = RadioSet([{'label': _('Decimal'), 'value': 'dec'},
+                                      {'label': _('No-Decimal'), 'value': 'ndec'}])
+        self.format_radio.setToolTip(
+            _("Select the kind of coordinates format used.\n"
+              "Coordinates can be saved with decimal point or without.\n"
+              "When there is no decimal point, it is required to specify\n"
+              "the number of digits for integer part and the number of decimals.\n"
+              "Also it will have to be specified if LZ = leading zeros are kept\n"
+              "or TZ = trailing zeros are kept.")
+        )
+
+        form.addRow(self.format_label, self.format_radio)
+
+        # Excellon Zeros
+        self.zeros_label = QtWidgets.QLabel('%s:' % _('Zeros'))
+        self.zeros_label.setAlignment(QtCore.Qt.AlignLeft)
+        self.zeros_label.setToolTip(
+            _("This sets the type of Excellon zeros.\n"
+              "If LZ then Leading Zeros are kept and\n"
+              "Trailing Zeros are removed.\n"
+              "If TZ is checked then Trailing Zeros are kept\n"
+              "and Leading Zeros are removed.")
+        )
+
+        self.zeros_radio = RadioSet([{'label': _('LZ'), 'value': 'LZ'},
+                                     {'label': _('TZ'), 'value': 'TZ'}])
+        self.zeros_radio.setToolTip(
+            _("This sets the default type of Excellon zeros.\n"
+              "If LZ then Leading Zeros are kept and\n"
+              "Trailing Zeros are removed.\n"
+              "If TZ is checked then Trailing Zeros are kept\n"
+              "and Leading Zeros are removed.")
+        )
+
+        form.addRow(self.zeros_label, self.zeros_radio)
+
+        # Slot type
+        self.slot_type_label = QtWidgets.QLabel('%s:' % _('Slot type'))
+        self.slot_type_label.setAlignment(QtCore.Qt.AlignLeft)
+        self.slot_type_label.setToolTip(
+            _("This sets how the slots will be exported.\n"
+              "If ROUTED then the slots will be routed\n"
+              "using M15/M16 commands.\n"
+              "If DRILLED(G85) the slots will be exported\n"
+              "using the Drilled slot command (G85).")
+        )
+
+        self.slot_type_radio = RadioSet([{'label': _('Routed'), 'value': 'routing'},
+                                         {'label': _('Drilled(G85)'), 'value': 'drilling'}])
+        self.slot_type_radio.setToolTip(
+            _("This sets how the slots will be exported.\n"
+              "If ROUTED then the slots will be routed\n"
+              "using M15/M16 commands.\n"
+              "If DRILLED(G85) the slots will be exported\n"
+              "using the Drilled slot command (G85).")
+        )
+
+        form.addRow(self.slot_type_label, self.slot_type_radio)
+
+        self.layout.addStretch()
+        self.format_radio.activated_custom.connect(self.optimization_selection)
+
+    def optimization_selection(self):
+        if self.format_radio.get_value() == 'dec':
+            self.zeros_label.setDisabled(True)
+            self.zeros_radio.setDisabled(True)
+        else:
+            self.zeros_label.setDisabled(False)
+            self.zeros_radio.setDisabled(False)

appGUI/preferences/excellon/ExcellonGenPrefGroupUI.py

@@ -0,0 +1,466 @@
+import platform
+
+from PyQt5 import QtWidgets, QtCore, QtGui
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import FCCheckBox, FCSpinner, RadioSet, FCEntry, FCSliderWithSpinner, FCColorEntry
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class ExcellonGenPrefGroupUI(OptionsGroupUI):
+
+    def __init__(self, decimals=4, parent=None):
+        # OptionsGroupUI.__init__(self, "Excellon Options", parent=parent)
+        super(ExcellonGenPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("Excellon General")))
+        self.decimals = decimals
+
+        # Plot options
+        self.plot_options_label = QtWidgets.QLabel("<b>%s:</b>" % _("Plot Options"))
+        self.layout.addWidget(self.plot_options_label)
+
+        grid1 = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid1)
+
+        # Plot CB
+        self.plot_cb = FCCheckBox(label=_('Plot'))
+        self.plot_cb.setToolTip(
+            "Plot (show) this object."
+        )
+        grid1.addWidget(self.plot_cb, 0, 0)
+
+        # Solid CB
+        self.solid_cb = FCCheckBox(label=_('Solid'))
+        self.solid_cb.setToolTip(
+            "Plot as solid circles."
+        )
+        grid1.addWidget(self.solid_cb, 0, 1)
+
+        # Multicolored CB
+        self.multicolored_cb = FCCheckBox(label='%s' % _('M-Color'))
+        self.multicolored_cb.setToolTip(
+            _("Draw polygons in different colors.")
+        )
+        grid1.addWidget(self.multicolored_cb, 0, 2)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid1.addWidget(separator_line, 1, 0, 1, 3)
+
+        grid2 = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid2)
+        grid2.setColumnStretch(0, 0)
+        grid2.setColumnStretch(1, 1)
+
+        # Excellon format
+        self.excellon_format_label = QtWidgets.QLabel("<b>%s:</b>" % _("Excellon Format"))
+        self.excellon_format_label.setToolTip(
+            _("The NC drill files, usually named Excellon files\n"
+              "are files that can be found in different formats.\n"
+              "Here we set the format used when the provided\n"
+              "coordinates are not using period.\n"
+              "\n"
+              "Possible presets:\n"
+              "\n"
+              "PROTEUS 3:3 MM LZ\n"
+              "DipTrace 5:2 MM TZ\n"
+              "DipTrace 4:3 MM LZ\n"
+              "\n"
+              "EAGLE 3:3 MM TZ\n"
+              "EAGLE 4:3 MM TZ\n"
+              "EAGLE 2:5 INCH TZ\n"
+              "EAGLE 3:5 INCH TZ\n"
+              "\n"
+              "ALTIUM 2:4 INCH LZ\n"
+              "Sprint Layout 2:4 INCH LZ"
+              "\n"
+              "KiCAD 3:5 INCH TZ")
+        )
+        grid2.addWidget(self.excellon_format_label, 0, 0, 1, 2)
+
+        self.excellon_format_in_label = QtWidgets.QLabel('%s:' % _("INCH"))
+        self.excellon_format_in_label.setToolTip(_("Default values for INCH are 2:4"))
+
+        hlay1 = QtWidgets.QHBoxLayout()
+        self.excellon_format_upper_in_entry = FCSpinner()
+        self.excellon_format_upper_in_entry.set_range(0, 9)
+        self.excellon_format_upper_in_entry.setMinimumWidth(30)
+        self.excellon_format_upper_in_entry.setToolTip(
+           _("This numbers signify the number of digits in\n"
+             "the whole part of Excellon coordinates.")
+        )
+        hlay1.addWidget(self.excellon_format_upper_in_entry)
+
+        excellon_separator_in_label = QtWidgets.QLabel(':')
+        excellon_separator_in_label.setFixedWidth(5)
+        hlay1.addWidget(excellon_separator_in_label)
+
+        self.excellon_format_lower_in_entry = FCSpinner()
+        self.excellon_format_lower_in_entry.set_range(0, 9)
+        self.excellon_format_lower_in_entry.setMinimumWidth(30)
+        self.excellon_format_lower_in_entry.setToolTip(
+            _("This numbers signify the number of digits in\n"
+              "the decimal part of Excellon coordinates.")
+        )
+        hlay1.addWidget(self.excellon_format_lower_in_entry)
+
+        grid2.addWidget(self.excellon_format_in_label, 1, 0)
+        grid2.addLayout(hlay1, 1, 1)
+
+        self.excellon_format_mm_label = QtWidgets.QLabel('%s:' % _("METRIC"))
+        self.excellon_format_mm_label.setToolTip(_("Default values for METRIC are 3:3"))
+
+        hlay2 = QtWidgets.QHBoxLayout()
+        self.excellon_format_upper_mm_entry = FCSpinner()
+        self.excellon_format_upper_mm_entry.set_range(0, 9)
+        self.excellon_format_upper_mm_entry.setMinimumWidth(30)
+        self.excellon_format_upper_mm_entry.setToolTip(
+            _("This numbers signify the number of digits in\n"
+              "the whole part of Excellon coordinates.")
+        )
+        hlay2.addWidget(self.excellon_format_upper_mm_entry)
+
+        excellon_separator_mm_label = QtWidgets.QLabel(':')
+        excellon_separator_mm_label.setFixedWidth(5)
+        hlay2.addWidget(excellon_separator_mm_label, QtCore.Qt.AlignLeft)
+
+        self.excellon_format_lower_mm_entry = FCSpinner()
+        self.excellon_format_lower_mm_entry.set_range(0, 9)
+        self.excellon_format_lower_mm_entry.setMinimumWidth(30)
+        self.excellon_format_lower_mm_entry.setToolTip(
+            _("This numbers signify the number of digits in\n"
+              "the decimal part of Excellon coordinates.")
+        )
+        hlay2.addWidget(self.excellon_format_lower_mm_entry)
+
+        grid2.addWidget(self.excellon_format_mm_label, 2, 0)
+        grid2.addLayout(hlay2, 2, 1)
+
+        self.excellon_zeros_label = QtWidgets.QLabel('%s:' % _('Zeros'))
+        self.excellon_zeros_label.setAlignment(QtCore.Qt.AlignLeft)
+        self.excellon_zeros_label.setToolTip(
+            _("This sets the type of Excellon zeros.\n"
+              "If LZ then Leading Zeros are kept and\n"
+              "Trailing Zeros are removed.\n"
+              "If TZ is checked then Trailing Zeros are kept\n"
+              "and Leading Zeros are removed.\n\n"
+              "This is used when there is no information\n"
+              "stored in the Excellon file.")
+        )
+        grid2.addWidget(self.excellon_zeros_label, 3, 0)
+
+        self.excellon_zeros_radio = RadioSet([{'label': _('LZ'), 'value': 'L'},
+                                              {'label': _('TZ'), 'value': 'T'}])
+
+        grid2.addWidget(self.excellon_zeros_radio, 3, 1)
+
+        self.excellon_units_label = QtWidgets.QLabel('%s:' % _('Units'))
+        self.excellon_units_label.setAlignment(QtCore.Qt.AlignLeft)
+        self.excellon_units_label.setToolTip(
+            _("This sets the default units of Excellon files.\n"
+              "If it is not detected in the parsed file the value here\n"
+              "will be used."
+              "Some Excellon files don't have an header\n"
+              "therefore this parameter will be used.")
+        )
+
+        self.excellon_units_radio = RadioSet([{'label': _('INCH'), 'value': 'INCH'},
+                                              {'label': _('MM'), 'value': 'METRIC'}])
+        self.excellon_units_radio.setToolTip(
+            _("This sets the units of Excellon files.\n"
+              "Some Excellon files don't have an header\n"
+              "therefore this parameter will be used.")
+        )
+
+        grid2.addWidget(self.excellon_units_label, 4, 0)
+        grid2.addWidget(self.excellon_units_radio, 4, 1)
+
+        self.update_excellon_cb = FCCheckBox(label=_('Update Export settings'))
+        self.update_excellon_cb.setToolTip(
+            "If checked, the Excellon Export settings will be updated with the ones above."
+        )
+        grid2.addWidget(self.update_excellon_cb, 5, 0, 1, 2)
+
+        # Adding the Excellon Format Defaults Button
+        self.excellon_defaults_button = QtWidgets.QPushButton()
+        self.excellon_defaults_button.setText(str(_("Restore Defaults")))
+        self.excellon_defaults_button.setMinimumWidth(80)
+        grid2.addWidget(self.excellon_defaults_button, 6, 0, 1, 2)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid2.addWidget(separator_line, 7, 0, 1, 2)
+
+        self.excellon_general_label = QtWidgets.QLabel("<b>%s:</b>" % _("Excellon Optimization"))
+        grid2.addWidget(self.excellon_general_label, 8, 0, 1, 2)
+
+        self.excellon_optimization_label = QtWidgets.QLabel(_('Algorithm:'))
+        self.excellon_optimization_label.setToolTip(
+            _("This sets the optimization type for the Excellon drill path.\n"
+              "If <<MetaHeuristic>> is checked then Google OR-Tools algorithm with\n"
+              "MetaHeuristic Guided Local Path is used. Default search time is 3sec.\n"
+              "If <<Basic>> is checked then Google OR-Tools Basic algorithm is used.\n"
+              "If <<TSA>> is checked then Travelling Salesman algorithm is used for\n"
+              "drill path optimization.\n"
+              "\n"
+              "If this control is disabled, then FlatCAM works in 32bit mode and it uses\n"
+              "Travelling Salesman algorithm for path optimization.")
+        )
+
+        self.excellon_optimization_radio = RadioSet([{'label': _('MetaHeuristic'), 'value': 'M'},
+                                                     {'label': _('Basic'), 'value': 'B'},
+                                                     {'label': _('TSA'), 'value': 'T'}],
+                                                    orientation='vertical', stretch=False)
+        self.excellon_optimization_radio.setToolTip(
+            _("This sets the optimization type for the Excellon drill path.\n"
+              "If <<MetaHeuristic>> is checked then Google OR-Tools algorithm with\n"
+              "MetaHeuristic Guided Local Path is used. Default search time is 3sec.\n"
+              "If <<Basic>> is checked then Google OR-Tools Basic algorithm is used.\n"
+              "If <<TSA>> is checked then Travelling Salesman algorithm is used for\n"
+              "drill path optimization.\n"
+              "\n"
+              "If this control is disabled, then FlatCAM works in 32bit mode and it uses\n"
+              "Travelling Salesman algorithm for path optimization.")
+        )
+
+        grid2.addWidget(self.excellon_optimization_label, 9, 0)
+        grid2.addWidget(self.excellon_optimization_radio, 9, 1)
+
+        self.optimization_time_label = QtWidgets.QLabel('%s:' % _('Duration'))
+        self.optimization_time_label.setAlignment(QtCore.Qt.AlignLeft)
+        self.optimization_time_label.setToolTip(
+            _("When OR-Tools Metaheuristic (MH) is enabled there is a\n"
+              "maximum threshold for how much time is spent doing the\n"
+              "path optimization. This max duration is set here.\n"
+              "In seconds.")
+
+        )
+
+        self.optimization_time_entry = FCSpinner()
+        self.optimization_time_entry.set_range(0, 999)
+
+        grid2.addWidget(self.optimization_time_label, 10, 0)
+        grid2.addWidget(self.optimization_time_entry, 10, 1)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid2.addWidget(separator_line, 11, 0, 1, 2)
+
+        # Excellon Object Color
+        self.gerber_color_label = QtWidgets.QLabel('<b>%s</b>' % _('Object Color'))
+        grid2.addWidget(self.gerber_color_label, 12, 0, 1, 2)
+
+        # Plot Line Color
+        self.line_color_label = QtWidgets.QLabel('%s:' % _('Outline'))
+        self.line_color_label.setToolTip(
+            _("Set the line color for plotted objects.")
+        )
+        self.line_color_entry = FCColorEntry()
+
+        grid2.addWidget(self.line_color_label, 13, 0)
+        grid2.addWidget(self.line_color_entry, 13, 1)
+
+        # Plot Fill Color
+        self.fill_color_label = QtWidgets.QLabel('%s:' % _('Fill'))
+        self.fill_color_label.setToolTip(
+            _("Set the fill color for plotted objects.\n"
+              "First 6 digits are the color and the last 2\n"
+              "digits are for alpha (transparency) level.")
+        )
+        self.fill_color_entry = FCColorEntry()
+
+        grid2.addWidget(self.fill_color_label, 14, 0)
+        grid2.addWidget(self.fill_color_entry, 14, 1)
+
+        # Plot Fill Transparency Level
+        self.excellon_alpha_label = QtWidgets.QLabel('%s:' % _('Alpha'))
+        self.excellon_alpha_label.setToolTip(
+            _("Set the fill transparency for plotted objects.")
+        )
+        self.excellon_alpha_entry = FCSliderWithSpinner(0, 255, 1)
+
+        grid2.addWidget(self.excellon_alpha_label, 15, 0)
+        grid2.addWidget(self.excellon_alpha_entry, 15, 1)
+
+        self.layout.addStretch()
+
+        current_platform = platform.architecture()[0]
+        if current_platform == '64bit':
+            self.excellon_optimization_label.setDisabled(False)
+            self.excellon_optimization_radio.setDisabled(False)
+            self.optimization_time_label.setDisabled(False)
+            self.optimization_time_entry.setDisabled(False)
+            self.excellon_optimization_radio.activated_custom.connect(self.optimization_selection)
+
+        else:
+            self.excellon_optimization_label.setDisabled(True)
+            self.excellon_optimization_radio.setDisabled(True)
+            self.optimization_time_label.setDisabled(True)
+            self.optimization_time_entry.setDisabled(True)
+
+        # Setting plot colors signals
+        self.line_color_entry.editingFinished.connect(self.on_line_color_entry)
+        self.fill_color_entry.editingFinished.connect(self.on_fill_color_entry)
+
+        self.excellon_alpha_entry.valueChanged.connect(self.on_excellon_alpha_changed)  # alpha
+
+        # Load the defaults values into the Excellon Format and Excellon Zeros fields
+        self.excellon_defaults_button.clicked.connect(self.on_excellon_defaults_button)
+        # Make sure that when the Excellon loading parameters are changed, the change is reflected in the
+        # Export Excellon parameters.
+        self.update_excellon_cb.stateChanged.connect(self.on_update_exc_export)
+
+        # call it once to make sure it is updated at startup
+        self.on_update_exc_export(state=self.app.defaults["excellon_update"])
+
+    def optimization_selection(self):
+        if self.excellon_optimization_radio.get_value() == 'M':
+            self.optimization_time_label.setDisabled(False)
+            self.optimization_time_entry.setDisabled(False)
+        else:
+            self.optimization_time_label.setDisabled(True)
+            self.optimization_time_entry.setDisabled(True)
+
+    # Setting plot colors handlers
+    def on_fill_color_entry(self):
+        self.app.defaults['excellon_plot_fill'] = self.fill_color_entry.get_value()[:7] + \
+            self.app.defaults['excellon_plot_fill'][7:9]
+
+    def on_line_color_entry(self):
+        self.app.defaults['excellon_plot_line'] = self.line_color_entry.get_value()[:7] + \
+                                                self.app.defaults['excellon_plot_line'][7:9]
+
+    def on_excellon_alpha_changed(self, spinner_value):
+        self.app.defaults['excellon_plot_fill'] = \
+            self.app.defaults['excellon_plot_fill'][:7] + \
+            (hex(spinner_value)[2:] if int(hex(spinner_value)[2:], 16) > 0 else '00')
+        self.app.defaults['excellon_plot_line'] = \
+            self.app.defaults['excellon_plot_line'][:7] + \
+            (hex(spinner_value)[2:] if int(hex(spinner_value)[2:], 16) > 0 else '00')
+
+    def on_excellon_defaults_button(self):
+        self.app.preferencesUiManager.defaults_form_fields["excellon_format_lower_in"].set_value('4')
+        self.app.preferencesUiManager.defaults_form_fields["excellon_format_upper_in"].set_value('2')
+        self.app.preferencesUiManager.defaults_form_fields["excellon_format_lower_mm"].set_value('3')
+        self.app.preferencesUiManager.defaults_form_fields["excellon_format_upper_mm"].set_value('3')
+        self.app.preferencesUiManager.defaults_form_fields["excellon_zeros"].set_value('L')
+        self.app.preferencesUiManager.defaults_form_fields["excellon_units"].set_value('INCH')
+
+    def on_update_exc_export(self, state):
+        """
+        This is handling the update of Excellon Export parameters based on the ones in the Excellon General but only
+        if the update_excellon_cb checkbox is checked
+
+        :param state: state of the checkbox whose signals is tied to his slot
+        :return:
+        """
+        if state:
+            # first try to disconnect
+            try:
+                self.excellon_format_upper_in_entry.returnPressed.disconnect(self.on_excellon_format_changed)
+            except TypeError:
+                pass
+            try:
+                self.excellon_format_lower_in_entry.returnPressed.disconnect(self.on_excellon_format_changed)
+            except TypeError:
+                pass
+            try:
+                self.excellon_format_upper_mm_entry.returnPressed.disconnect(self.on_excellon_format_changed)
+            except TypeError:
+                pass
+            try:
+                self.excellon_format_lower_mm_entry.returnPressed.disconnect(self.on_excellon_format_changed)
+            except TypeError:
+                pass
+
+            try:
+                self.excellon_zeros_radio.activated_custom.disconnect(self.on_excellon_zeros_changed)
+            except TypeError:
+                pass
+            try:
+                self.excellon_units_radio.activated_custom.disconnect(self.on_excellon_zeros_changed)
+            except TypeError:
+                pass
+
+            # the connect them
+            self.excellon_format_upper_in_entry.returnPressed.connect(self.on_excellon_format_changed)
+            self.excellon_format_lower_in_entry.returnPressed.connect(self.on_excellon_format_changed)
+            self.excellon_format_upper_mm_entry.returnPressed.connect(self.on_excellon_format_changed)
+            self.excellon_format_lower_mm_entry.returnPressed.connect(self.on_excellon_format_changed)
+            self.excellon_zeros_radio.activated_custom.connect(self.on_excellon_zeros_changed)
+            self.excellon_units_radio.activated_custom.connect(self.on_excellon_units_changed)
+        else:
+            # disconnect the signals
+            try:
+                self.excellon_format_upper_in_entry.returnPressed.disconnect(self.on_excellon_format_changed)
+            except TypeError:
+                pass
+            try:
+                self.excellon_format_lower_in_entry.returnPressed.disconnect(self.on_excellon_format_changed)
+            except TypeError:
+                pass
+            try:
+                self.excellon_format_upper_mm_entry.returnPressed.disconnect(self.on_excellon_format_changed)
+            except TypeError:
+                pass
+            try:
+                self.excellon_format_lower_mm_entry.returnPressed.disconnect(self.on_excellon_format_changed)
+            except TypeError:
+                pass
+
+            try:
+                self.excellon_zeros_radio.activated_custom.disconnect(self.on_excellon_zeros_changed)
+            except TypeError:
+                pass
+            try:
+                self.excellon_units_radio.activated_custom.disconnect(self.on_excellon_zeros_changed)
+            except TypeError:
+                pass
+
+    def on_excellon_format_changed(self):
+        """
+        Slot activated when the user changes the Excellon format values in Preferences -> Excellon -> Excellon General
+        :return: None
+        """
+        if self.excellon_units_radio.get_value().upper() == 'METRIC':
+            self.app.ui.excellon_defaults_form.excellon_exp_group.format_whole_entry.set_value(
+                self.excellon_format_upper_mm_entry.get_value())
+            self.app.ui.excellon_defaults_form.excellon_exp_group.format_dec_entry.set_value(
+                self.excellon_format_lower_mm_entry.get_value())
+        else:
+            self.app.ui.excellon_defaults_form.excellon_exp_group.format_whole_entry.set_value(
+                self.excellon_format_upper_in_entry.get_value())
+            self.app.ui.excellon_defaults_form.excellon_exp_group.format_dec_entry.set_value(
+                self.excellon_format_lower_in_entry.get_value())
+
+    def on_excellon_zeros_changed(self, val):
+        """
+        Slot activated when the user changes the Excellon zeros values in Preferences -> Excellon -> Excellon General
+        :return: None
+        """
+        self.app.ui.excellon_defaults_form.excellon_exp_group.zeros_radio.set_value(val + 'Z')
+
+    def on_excellon_units_changed(self, val):
+        """
+        Slot activated when the user changes the Excellon unit values in Preferences -> Excellon -> Excellon General
+        :return: None
+        """
+        self.app.ui.excellon_defaults_form.excellon_exp_group.excellon_units_radio.set_value(val)
+        self.on_excellon_format_changed()

appGUI/preferences/excellon/ExcellonOptPrefGroupUI.py

@@ -0,0 +1,317 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import Qt, QSettings
+
+from appGUI.GUIElements import RadioSet, FCDoubleSpinner, FCCheckBox, FCEntry, FCSpinner, OptionalInputSection, \
+    FCComboBox, NumericalEvalTupleEntry
+from appGUI.preferences import machinist_setting
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class ExcellonOptPrefGroupUI(OptionsGroupUI):
+
+    def __init__(self, decimals=4, parent=None):
+        # OptionsGroupUI.__init__(self, "Excellon Options", parent=parent)
+        super(ExcellonOptPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("Excellon Options")))
+        self.decimals = decimals
+
+        # ## Create CNC Job
+        self.cncjob_label = QtWidgets.QLabel('<b>%s</b>' % _('Create CNC Job'))
+        self.cncjob_label.setToolTip(
+            _("Parameters used to create a CNC Job object\n"
+              "for this drill object.")
+        )
+        self.layout.addWidget(self.cncjob_label)
+
+        grid2 = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid2)
+        grid2.setColumnStretch(0, 0)
+        grid2.setColumnStretch(1, 1)
+
+        # Operation Type
+        self.operation_label = QtWidgets.QLabel('<b>%s:</b>' % _('Operation'))
+        self.operation_label.setToolTip(
+            _("Operation type:\n"
+              "- Drilling -> will drill the drills/slots associated with this tool\n"
+              "- Milling -> will mill the drills/slots")
+        )
+        self.operation_radio = RadioSet(
+            [
+                {'label': _('Drilling'), 'value': 'drill'},
+                {'label': _("Milling"), 'value': 'mill'}
+            ]
+        )
+
+        grid2.addWidget(self.operation_label, 0, 0)
+        grid2.addWidget(self.operation_radio, 0, 1)
+
+        self.mill_type_label = QtWidgets.QLabel('%s:' % _('Milling Type'))
+        self.mill_type_label.setToolTip(
+            _("Milling type:\n"
+              "- Drills -> will mill the drills associated with this tool\n"
+              "- Slots -> will mill the slots associated with this tool\n"
+              "- Both -> will mill both drills and mills or whatever is available")
+        )
+        self.milling_type_radio = RadioSet(
+            [
+                {'label': _('Drills'), 'value': 'drills'},
+                {'label': _("Slots"), 'value': 'slots'},
+                {'label': _("Both"), 'value': 'both'},
+            ]
+        )
+
+        grid2.addWidget(self.mill_type_label, 1, 0)
+        grid2.addWidget(self.milling_type_radio, 1, 1)
+
+        self.mill_dia_label = QtWidgets.QLabel('%s:' % _('Milling Diameter'))
+        self.mill_dia_label.setToolTip(
+            _("The diameter of the tool who will do the milling")
+        )
+
+        self.mill_dia_entry = FCDoubleSpinner()
+        self.mill_dia_entry.set_precision(self.decimals)
+        self.mill_dia_entry.set_range(0.0000, 9999.9999)
+
+        grid2.addWidget(self.mill_dia_label, 2, 0)
+        grid2.addWidget(self.mill_dia_entry, 2, 1)
+
+        # Cut Z
+        cutzlabel = QtWidgets.QLabel('%s:' % _('Cut Z'))
+        cutzlabel.setToolTip(
+            _("Drill depth (negative)\n"
+              "below the copper surface.")
+        )
+
+        self.cutz_entry = FCDoubleSpinner()
+
+        if machinist_setting == 0:
+            self.cutz_entry.set_range(-9999.9999, 0.0000)
+        else:
+            self.cutz_entry.set_range(-9999.9999, 9999.9999)
+
+        self.cutz_entry.setSingleStep(0.1)
+        self.cutz_entry.set_precision(self.decimals)
+
+        grid2.addWidget(cutzlabel, 3, 0)
+        grid2.addWidget(self.cutz_entry, 3, 1)
+
+        # Multi-Depth
+        self.mpass_cb = FCCheckBox('%s:' % _("Multi-Depth"))
+        self.mpass_cb.setToolTip(
+            _(
+                "Use multiple passes to limit\n"
+                "the cut depth in each pass. Will\n"
+                "cut multiple times until Cut Z is\n"
+                "reached."
+            )
+        )
+
+        self.maxdepth_entry = FCDoubleSpinner()
+        self.maxdepth_entry.set_precision(self.decimals)
+        self.maxdepth_entry.set_range(0, 9999.9999)
+        self.maxdepth_entry.setSingleStep(0.1)
+
+        self.maxdepth_entry.setToolTip(_("Depth of each pass (positive)."))
+
+        grid2.addWidget(self.mpass_cb, 4, 0)
+        grid2.addWidget(self.maxdepth_entry, 4, 1)
+
+        # Travel Z
+        travelzlabel = QtWidgets.QLabel('%s:' % _('Travel Z'))
+        travelzlabel.setToolTip(
+            _("Tool height when travelling\n"
+              "across the XY plane.")
+        )
+
+        self.travelz_entry = FCDoubleSpinner()
+        self.travelz_entry.set_precision(self.decimals)
+
+        if machinist_setting == 0:
+            self.travelz_entry.set_range(0.0001, 9999.9999)
+        else:
+            self.travelz_entry.set_range(-9999.9999, 9999.9999)
+
+        grid2.addWidget(travelzlabel, 5, 0)
+        grid2.addWidget(self.travelz_entry, 5, 1)
+
+        # Tool change:
+        self.toolchange_cb = FCCheckBox('%s' % _("Tool change"))
+        self.toolchange_cb.setToolTip(
+            _("Include tool-change sequence\n"
+              "in G-Code (Pause for tool change).")
+        )
+        grid2.addWidget(self.toolchange_cb, 6, 0, 1, 2)
+
+        # Tool Change Z
+        toolchangezlabel = QtWidgets.QLabel('%s:' % _('Toolchange Z'))
+        toolchangezlabel.setToolTip(
+            _("Z-axis position (height) for\n"
+              "tool change.")
+        )
+
+        self.toolchangez_entry = FCDoubleSpinner()
+        self.toolchangez_entry.set_precision(self.decimals)
+
+        if machinist_setting == 0:
+            self.toolchangez_entry.set_range(0.0001, 9999.9999)
+        else:
+            self.toolchangez_entry.set_range(-9999.9999, 9999.9999)
+
+        grid2.addWidget(toolchangezlabel, 7, 0)
+        grid2.addWidget(self.toolchangez_entry, 7, 1)
+
+        # End Move Z
+        endz_label = QtWidgets.QLabel('%s:' % _('End move Z'))
+        endz_label.setToolTip(
+            _("Height of the tool after\n"
+              "the last move at the end of the job.")
+        )
+        self.endz_entry = FCDoubleSpinner()
+        self.endz_entry.set_precision(self.decimals)
+
+        if machinist_setting == 0:
+            self.endz_entry.set_range(0.0000, 9999.9999)
+        else:
+            self.endz_entry.set_range(-9999.9999, 9999.9999)
+
+        grid2.addWidget(endz_label, 8, 0)
+        grid2.addWidget(self.endz_entry, 8, 1)
+
+        # End Move X,Y
+        endmove_xy_label = QtWidgets.QLabel('%s:' % _('End move X,Y'))
+        endmove_xy_label.setToolTip(
+            _("End move X,Y position. In format (x,y).\n"
+              "If no value is entered then there is no move\n"
+              "on X,Y plane at the end of the job.")
+        )
+        self.endxy_entry = NumericalEvalTupleEntry(border_color='#0069A9')
+
+        grid2.addWidget(endmove_xy_label, 9, 0)
+        grid2.addWidget(self.endxy_entry, 9, 1)
+
+        # Feedrate Z
+        frlabel = QtWidgets.QLabel('%s:' % _('Feedrate Z'))
+        frlabel.setToolTip(
+            _("Tool speed while drilling\n"
+              "(in units per minute).\n"
+              "So called 'Plunge' feedrate.\n"
+              "This is for linear move G01.")
+        )
+        self.feedrate_z_entry = FCDoubleSpinner()
+        self.feedrate_z_entry.set_precision(self.decimals)
+        self.feedrate_z_entry.set_range(0, 99999.9999)
+
+        grid2.addWidget(frlabel, 10, 0)
+        grid2.addWidget(self.feedrate_z_entry, 10, 1)
+
+        # Spindle speed
+        spdlabel = QtWidgets.QLabel('%s:' % _('Spindle Speed'))
+        spdlabel.setToolTip(
+            _("Speed of the spindle\n"
+              "in RPM (optional)")
+        )
+
+        self.spindlespeed_entry = FCSpinner()
+        self.spindlespeed_entry.set_range(0, 1000000)
+        self.spindlespeed_entry.set_step(100)
+
+        grid2.addWidget(spdlabel, 11, 0)
+        grid2.addWidget(self.spindlespeed_entry, 11, 1)
+
+        # Dwell
+        self.dwell_cb = FCCheckBox('%s' % _('Enable Dwell'))
+        self.dwell_cb .setToolTip(
+            _("Pause to allow the spindle to reach its\n"
+              "speed before cutting.")
+        )
+
+        grid2.addWidget(self.dwell_cb, 12, 0, 1, 2)
+
+        # Dwell Time
+        dwelltime = QtWidgets.QLabel('%s:' % _('Duration'))
+        dwelltime.setToolTip(_("Number of time units for spindle to dwell."))
+        self.dwelltime_entry = FCDoubleSpinner()
+        self.dwelltime_entry.set_precision(self.decimals)
+        self.dwelltime_entry.set_range(0, 99999.9999)
+
+        grid2.addWidget(dwelltime, 13, 0)
+        grid2.addWidget(self.dwelltime_entry, 13, 1)
+
+        self.ois_dwell_exc = OptionalInputSection(self.dwell_cb, [self.dwelltime_entry])
+
+        # preprocessor selection
+        pp_excellon_label = QtWidgets.QLabel('%s:' % _("Preprocessor"))
+        pp_excellon_label.setToolTip(
+            _("The preprocessor JSON file that dictates\n"
+              "Gcode output.")
+        )
+
+        self.pp_excellon_name_cb = FCComboBox()
+        self.pp_excellon_name_cb.setFocusPolicy(Qt.StrongFocus)
+
+        grid2.addWidget(pp_excellon_label, 14, 0)
+        grid2.addWidget(self.pp_excellon_name_cb, 14, 1)
+
+        # ### Choose what to use for Gcode creation: Drills, Slots or Both
+        excellon_gcode_type_label = QtWidgets.QLabel('<b>%s</b>' % _('Gcode'))
+        excellon_gcode_type_label.setToolTip(
+            _("Choose what to use for GCode generation:\n"
+              "'Drills', 'Slots' or 'Both'.\n"
+              "When choosing 'Slots' or 'Both', slots will be\n"
+              "converted to drills.")
+        )
+        self.excellon_gcode_type_radio = RadioSet([{'label': 'Drills', 'value': 'drills'},
+                                                   {'label': 'Slots', 'value': 'slots'},
+                                                   {'label': 'Both', 'value': 'both'}])
+        grid2.addWidget(excellon_gcode_type_label, 15, 0)
+        grid2.addWidget(self.excellon_gcode_type_radio, 15, 1)
+
+        # until I decide to implement this feature those remain disabled
+        excellon_gcode_type_label.hide()
+        self.excellon_gcode_type_radio.setVisible(False)
+
+        # ### Milling Holes ## ##
+        self.mill_hole_label = QtWidgets.QLabel('<b>%s</b>' % _('Mill Holes'))
+        self.mill_hole_label.setToolTip(
+            _("Create Geometry for milling holes.")
+        )
+        grid2.addWidget(self.mill_hole_label, 16, 0, 1, 2)
+
+        tdlabel = QtWidgets.QLabel('%s:' % _('Drill Tool dia'))
+        tdlabel.setToolTip(
+            _("Diameter of the cutting tool.")
+        )
+        self.tooldia_entry = FCDoubleSpinner()
+        self.tooldia_entry.set_precision(self.decimals)
+        self.tooldia_entry.set_range(0, 999.9999)
+
+        grid2.addWidget(tdlabel, 18, 0)
+        grid2.addWidget(self.tooldia_entry, 18, 1)
+
+        stdlabel = QtWidgets.QLabel('%s:' % _('Slot Tool dia'))
+        stdlabel.setToolTip(
+            _("Diameter of the cutting tool\n"
+              "when milling slots.")
+        )
+        self.slot_tooldia_entry = FCDoubleSpinner()
+        self.slot_tooldia_entry.set_precision(self.decimals)
+        self.slot_tooldia_entry.set_range(0, 999.9999)
+
+        grid2.addWidget(stdlabel, 21, 0)
+        grid2.addWidget(self.slot_tooldia_entry, 21, 1)
+
+        self.layout.addStretch()

appGUI/preferences/excellon/ExcellonPreferencesUI.py

@@ -0,0 +1,53 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.preferences.excellon.ExcellonEditorPrefGroupUI import ExcellonEditorPrefGroupUI
+from appGUI.preferences.excellon.ExcellonExpPrefGroupUI import ExcellonExpPrefGroupUI
+from appGUI.preferences.excellon.ExcellonAdvOptPrefGroupUI import ExcellonAdvOptPrefGroupUI
+from appGUI.preferences.excellon.ExcellonOptPrefGroupUI import ExcellonOptPrefGroupUI
+from appGUI.preferences.excellon.ExcellonGenPrefGroupUI import ExcellonGenPrefGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class ExcellonPreferencesUI(QtWidgets.QWidget):
+
+    def __init__(self, decimals, parent=None):
+        QtWidgets.QWidget.__init__(self, parent=parent)
+        self.layout = QtWidgets.QHBoxLayout()
+        self.setLayout(self.layout)
+        self.decimals = decimals
+
+        self.excellon_gen_group = ExcellonGenPrefGroupUI(decimals=self.decimals)
+        self.excellon_gen_group.setMinimumWidth(240)
+        self.excellon_opt_group = ExcellonOptPrefGroupUI(decimals=self.decimals)
+        self.excellon_opt_group.setMinimumWidth(290)
+        self.excellon_exp_group = ExcellonExpPrefGroupUI(decimals=self.decimals)
+        self.excellon_exp_group.setMinimumWidth(250)
+        self.excellon_adv_opt_group = ExcellonAdvOptPrefGroupUI(decimals=self.decimals)
+        self.excellon_adv_opt_group.setMinimumWidth(250)
+        self.excellon_editor_group = ExcellonEditorPrefGroupUI(decimals=self.decimals)
+        self.excellon_editor_group.setMinimumWidth(260)
+
+        self.vlay = QtWidgets.QVBoxLayout()
+        self.vlay.addWidget(self.excellon_opt_group)
+        self.vlay.addWidget(self.excellon_exp_group)
+
+        self.layout.addWidget(self.excellon_gen_group)
+        self.layout.addLayout(self.vlay)
+        self.layout.addWidget(self.excellon_adv_opt_group)
+        self.layout.addWidget(self.excellon_editor_group)
+
+        self.layout.addStretch()

appGUI/preferences/general/GeneralAPPSetGroupUI.py

@@ -0,0 +1,465 @@
+from PyQt5 import QtCore, QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import FCDoubleSpinner, FCCheckBox, FCComboBox, RadioSet, OptionalInputSection, FCSpinner, \
+    FCColorEntry
+from appGUI.preferences import settings
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class GeneralAPPSetGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+        super(GeneralAPPSetGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("App Settings")))
+        self.decimals = decimals
+
+        theme_settings = QtCore.QSettings("Open Source", "FlatCAM")
+        if theme_settings.contains("theme"):
+            theme = theme_settings.value('theme', type=str)
+        else:
+            theme = 'white'
+
+        if theme == 'white':
+            self.resource_loc = 'assets/resources'
+        else:
+            self.resource_loc = 'assets/resources'
+
+        # Create a grid layout for the Application general settings
+        grid0 = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid0)
+        grid0.setColumnStretch(0, 0)
+        grid0.setColumnStretch(1, 1)
+
+        # GRID Settings
+        self.grid_label = QtWidgets.QLabel('<b>%s</b>' % _('Grid Settings'))
+        grid0.addWidget(self.grid_label, 0, 0, 1, 2)
+
+        # Grid X Entry
+        self.gridx_label = QtWidgets.QLabel('%s:' % _('X value'))
+        self.gridx_label.setToolTip(
+           _("This is the Grid snap value on X axis.")
+        )
+        self.gridx_entry = FCDoubleSpinner()
+        self.gridx_entry.set_precision(self.decimals)
+        self.gridx_entry.setSingleStep(0.1)
+
+        grid0.addWidget(self.gridx_label, 1, 0)
+        grid0.addWidget(self.gridx_entry, 1, 1)
+
+        # Grid Y Entry
+        self.gridy_label = QtWidgets.QLabel('%s:' % _('Y value'))
+        self.gridy_label.setToolTip(
+            _("This is the Grid snap value on Y axis.")
+        )
+        self.gridy_entry = FCDoubleSpinner()
+        self.gridy_entry.set_precision(self.decimals)
+        self.gridy_entry.setSingleStep(0.1)
+
+        grid0.addWidget(self.gridy_label, 2, 0)
+        grid0.addWidget(self.gridy_entry, 2, 1)
+
+        # Snap Max Entry
+        self.snap_max_label = QtWidgets.QLabel('%s:' % _('Snap Max'))
+        self.snap_max_label.setToolTip(_("Max. magnet distance"))
+        self.snap_max_dist_entry = FCDoubleSpinner()
+        self.snap_max_dist_entry.set_precision(self.decimals)
+        self.snap_max_dist_entry.setSingleStep(0.1)
+
+        grid0.addWidget(self.snap_max_label, 3, 0)
+        grid0.addWidget(self.snap_max_dist_entry, 3, 1)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line, 4, 0, 1, 2)
+
+        # Workspace
+        self.workspace_label = QtWidgets.QLabel('<b>%s</b>' % _('Workspace Settings'))
+        grid0.addWidget(self.workspace_label, 5, 0, 1, 2)
+
+        self.workspace_cb = FCCheckBox('%s' % _('Active'))
+        self.workspace_cb.setToolTip(
+           _("Draw a delimiting rectangle on canvas.\n"
+             "The purpose is to illustrate the limits for our work.")
+        )
+
+        grid0.addWidget(self.workspace_cb, 6, 0, 1, 2)
+
+        self.workspace_type_lbl = QtWidgets.QLabel('%s:' % _('Size'))
+        self.workspace_type_lbl.setToolTip(
+           _("Select the type of rectangle to be used on canvas,\n"
+             "as valid workspace.")
+        )
+        self.wk_cb = FCComboBox()
+
+        grid0.addWidget(self.workspace_type_lbl, 7, 0)
+        grid0.addWidget(self.wk_cb, 7, 1)
+
+        self.pagesize = {}
+        self.pagesize.update(
+            {
+                'A0': (841, 1189),
+                'A1': (594, 841),
+                'A2': (420, 594),
+                'A3': (297, 420),
+                'A4': (210, 297),
+                'A5': (148, 210),
+                'A6': (105, 148),
+                'A7': (74, 105),
+                'A8': (52, 74),
+                'A9': (37, 52),
+                'A10': (26, 37),
+
+                'B0': (1000, 1414),
+                'B1': (707, 1000),
+                'B2': (500, 707),
+                'B3': (353, 500),
+                'B4': (250, 353),
+                'B5': (176, 250),
+                'B6': (125, 176),
+                'B7': (88, 125),
+                'B8': (62, 88),
+                'B9': (44, 62),
+                'B10': (31, 44),
+
+                'C0': (917, 1297),
+                'C1': (648, 917),
+                'C2': (458, 648),
+                'C3': (324, 458),
+                'C4': (229, 324),
+                'C5': (162, 229),
+                'C6': (114, 162),
+                'C7': (81, 114),
+                'C8': (57, 81),
+                'C9': (40, 57),
+                'C10': (28, 40),
+
+                # American paper sizes
+                'LETTER': (8.5, 11),
+                'LEGAL': (8.5, 14),
+                'ELEVENSEVENTEEN': (11, 17),
+
+                # From https://en.wikipedia.org/wiki/Paper_size
+                'JUNIOR_LEGAL': (5, 8),
+                'HALF_LETTER': (5.5, 8),
+                'GOV_LETTER': (8, 10.5),
+                'GOV_LEGAL': (8.5, 13),
+                'LEDGER': (17, 11),
+            }
+        )
+
+        page_size_list = list(self.pagesize.keys())
+
+        self.wk_cb.addItems(page_size_list)
+
+        # Page orientation
+        self.wk_orientation_label = QtWidgets.QLabel('%s:' % _("Orientation"))
+        self.wk_orientation_label.setToolTip(_("Can be:\n"
+                                               "- Portrait\n"
+                                               "- Landscape"))
+
+        self.wk_orientation_radio = RadioSet([{'label': _('Portrait'), 'value': 'p'},
+                                              {'label': _('Landscape'), 'value': 'l'},
+                                              ], stretch=False)
+
+        grid0.addWidget(self.wk_orientation_label, 8, 0)
+        grid0.addWidget(self.wk_orientation_radio, 8, 1)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line, 9, 0, 1, 2)
+
+        # Font Size
+        self.font_size_label = QtWidgets.QLabel('<b>%s</b>' % _('Font Size'))
+        grid0.addWidget(self.font_size_label, 10, 0, 1, 2)
+
+        # Notebook Font Size
+        self.notebook_font_size_label = QtWidgets.QLabel('%s:' % _('Notebook'))
+        self.notebook_font_size_label.setToolTip(
+            _("This sets the font size for the elements found in the Notebook.\n"
+              "The notebook is the collapsible area in the left side of the appGUI,\n"
+              "and include the Project, Selected and Tool tabs.")
+        )
+
+        self.notebook_font_size_spinner = FCSpinner()
+        self.notebook_font_size_spinner.set_range(8, 40)
+        self.notebook_font_size_spinner.setWrapping(True)
+
+        qsettings = QSettings("Open Source", "FlatCAM")
+        if qsettings.contains("notebook_font_size"):
+            self.notebook_font_size_spinner.set_value(qsettings.value('notebook_font_size', type=int))
+        else:
+            self.notebook_font_size_spinner.set_value(12)
+
+        grid0.addWidget(self.notebook_font_size_label, 11, 0)
+        grid0.addWidget(self.notebook_font_size_spinner, 11, 1)
+
+        # Axis Font Size
+        self.axis_font_size_label = QtWidgets.QLabel('%s:' % _('Axis'))
+        self.axis_font_size_label.setToolTip(
+            _("This sets the font size for canvas axis.")
+        )
+
+        self.axis_font_size_spinner = FCSpinner()
+        self.axis_font_size_spinner.set_range(0, 40)
+        self.axis_font_size_spinner.setWrapping(True)
+
+        qsettings = QSettings("Open Source", "FlatCAM")
+        if qsettings.contains("axis_font_size"):
+            self.axis_font_size_spinner.set_value(qsettings.value('axis_font_size', type=int))
+        else:
+            self.axis_font_size_spinner.set_value(8)
+
+        grid0.addWidget(self.axis_font_size_label, 12, 0)
+        grid0.addWidget(self.axis_font_size_spinner, 12, 1)
+
+        # TextBox Font Size
+        self.textbox_font_size_label = QtWidgets.QLabel('%s:' % _('Textbox'))
+        self.textbox_font_size_label.setToolTip(
+            _("This sets the font size for the Textbox appGUI\n"
+              "elements that are used in the application.")
+        )
+
+        self.textbox_font_size_spinner = FCSpinner()
+        self.textbox_font_size_spinner.set_range(8, 40)
+        self.textbox_font_size_spinner.setWrapping(True)
+
+        qsettings = QSettings("Open Source", "FlatCAM")
+        if qsettings.contains("textbox_font_size"):
+            self.textbox_font_size_spinner.set_value(settings.value('textbox_font_size', type=int))
+        else:
+            self.textbox_font_size_spinner.set_value(10)
+
+        grid0.addWidget(self.textbox_font_size_label, 13, 0)
+        grid0.addWidget(self.textbox_font_size_spinner, 13, 1)
+
+        # HUD Font Size
+        self.hud_font_size_label = QtWidgets.QLabel('%s:' % _('HUD'))
+        self.hud_font_size_label.setToolTip(
+            _("This sets the font size for the Heads Up Display.")
+        )
+
+        self.hud_font_size_spinner = FCSpinner()
+        self.hud_font_size_spinner.set_range(8, 40)
+        self.hud_font_size_spinner.setWrapping(True)
+
+        qsettings = QSettings("Open Source", "FlatCAM")
+        if qsettings.contains("hud_font_size"):
+            self.hud_font_size_spinner.set_value(settings.value('hud_font_size', type=int))
+        else:
+            self.hud_font_size_spinner.set_value(8)
+
+        grid0.addWidget(self.hud_font_size_label, 14, 0)
+        grid0.addWidget(self.hud_font_size_spinner, 14, 1)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line, 16, 0, 1, 2)
+
+        # -----------------------------------------------------------
+        # -------------- MOUSE SETTINGS -----------------------------
+        # -----------------------------------------------------------
+
+        self.mouse_lbl = QtWidgets.QLabel('<b>%s</b>' % _('Mouse Settings'))
+        grid0.addWidget(self.mouse_lbl, 21, 0, 1, 2)
+
+        # Mouse Cursor Shape
+        self.cursor_lbl = QtWidgets.QLabel('%s:' % _('Cursor Shape'))
+        self.cursor_lbl.setToolTip(
+           _("Choose a mouse cursor shape.\n"
+             "- Small -> with a customizable size.\n"
+             "- Big -> Infinite lines")
+        )
+
+        self.cursor_radio = RadioSet([
+            {"label": _("Small"), "value": "small"},
+            {"label": _("Big"), "value": "big"}
+        ], orientation='horizontal', stretch=False)
+
+        grid0.addWidget(self.cursor_lbl, 22, 0)
+        grid0.addWidget(self.cursor_radio, 22, 1)
+
+        # Mouse Cursor Size
+        self.cursor_size_lbl = QtWidgets.QLabel('%s:' % _('Cursor Size'))
+        self.cursor_size_lbl.setToolTip(
+           _("Set the size of the mouse cursor, in pixels.")
+        )
+
+        self.cursor_size_entry = FCSpinner()
+        self.cursor_size_entry.set_range(10, 70)
+        self.cursor_size_entry.setWrapping(True)
+
+        grid0.addWidget(self.cursor_size_lbl, 23, 0)
+        grid0.addWidget(self.cursor_size_entry, 23, 1)
+
+        # Cursor Width
+        self.cursor_width_lbl = QtWidgets.QLabel('%s:' % _('Cursor Width'))
+        self.cursor_width_lbl.setToolTip(
+           _("Set the line width of the mouse cursor, in pixels.")
+        )
+
+        self.cursor_width_entry = FCSpinner()
+        self.cursor_width_entry.set_range(1, 10)
+        self.cursor_width_entry.setWrapping(True)
+
+        grid0.addWidget(self.cursor_width_lbl, 24, 0)
+        grid0.addWidget(self.cursor_width_entry, 24, 1)
+
+        # Cursor Color Enable
+        self.mouse_cursor_color_cb = FCCheckBox(label='%s' % _('Cursor Color'))
+        self.mouse_cursor_color_cb.setToolTip(
+            _("Check this box to color mouse cursor.")
+        )
+        grid0.addWidget(self.mouse_cursor_color_cb, 25, 0, 1, 2)
+
+        # Cursor Color
+        self.mouse_color_label = QtWidgets.QLabel('%s:' % _('Cursor Color'))
+        self.mouse_color_label.setToolTip(
+            _("Set the color of the mouse cursor.")
+        )
+        self.mouse_cursor_entry = FCColorEntry()
+
+        grid0.addWidget(self.mouse_color_label, 26, 0)
+        grid0.addWidget(self.mouse_cursor_entry, 26, 1)
+
+        self.mois = OptionalInputSection(
+            self.mouse_cursor_color_cb,
+            [
+                self.mouse_color_label,
+                self.mouse_cursor_entry
+            ]
+        )
+        # Select mouse pan button
+        self.panbuttonlabel = QtWidgets.QLabel('%s:' % _('Pan Button'))
+        self.panbuttonlabel.setToolTip(
+            _("Select the mouse button to use for panning:\n"
+              "- MMB --> Middle Mouse Button\n"
+              "- RMB --> Right Mouse Button")
+        )
+        self.pan_button_radio = RadioSet([{'label': _('MMB'), 'value': '3'},
+                                          {'label': _('RMB'), 'value': '2'}])
+
+        grid0.addWidget(self.panbuttonlabel, 27, 0)
+        grid0.addWidget(self.pan_button_radio, 27, 1)
+
+        # Multiple Selection Modifier Key
+        self.mselectlabel = QtWidgets.QLabel('%s:' % _('Multiple Selection'))
+        self.mselectlabel.setToolTip(
+            _("Select the key used for multiple selection.")
+        )
+        self.mselect_radio = RadioSet([{'label': _('CTRL'), 'value': 'Control'},
+                                       {'label': _('SHIFT'), 'value': 'Shift'}])
+
+        grid0.addWidget(self.mselectlabel, 28, 0)
+        grid0.addWidget(self.mselect_radio, 28, 1)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line, 29, 0, 1, 2)
+
+        # Delete confirmation
+        self.delete_conf_cb = FCCheckBox(_('Delete object confirmation'))
+        self.delete_conf_cb.setToolTip(
+            _("When checked the application will ask for user confirmation\n"
+              "whenever the Delete object(s) event is triggered, either by\n"
+              "menu shortcut or key shortcut.")
+        )
+        grid0.addWidget(self.delete_conf_cb, 30, 0, 1, 2)
+
+        # Open behavior
+        self.open_style_cb = FCCheckBox('%s' % _('"Open" behavior'))
+        self.open_style_cb.setToolTip(
+            _("When checked the path for the last saved file is used when saving files,\n"
+              "and the path for the last opened file is used when opening files.\n\n"
+              "When unchecked the path for opening files is the one used last: either the\n"
+              "path for saving files or the path for opening files.")
+        )
+
+        grid0.addWidget(self.open_style_cb, 31, 0, 1, 2)
+
+        # Enable/Disable ToolTips globally
+        self.toggle_tooltips_cb = FCCheckBox(label=_('Enable ToolTips'))
+        self.toggle_tooltips_cb.setToolTip(
+            _("Check this box if you want to have toolTips displayed\n"
+              "when hovering with mouse over items throughout the App.")
+        )
+
+        grid0.addWidget(self.toggle_tooltips_cb, 32, 0, 1, 2)
+
+        # Machinist settings that allow unsafe settings
+        self.machinist_cb = FCCheckBox(_("Allow Machinist Unsafe Settings"))
+        self.machinist_cb.setToolTip(
+            _("If checked, some of the application settings will be allowed\n"
+              "to have values that are usually unsafe to use.\n"
+              "Like Z travel negative values or Z Cut positive values.\n"
+              "It will applied at the next application start.\n"
+              "<<WARNING>>: Don't change this unless you know what you are doing !!!")
+        )
+
+        grid0.addWidget(self.machinist_cb, 33, 0, 1, 2)
+
+        # Bookmarks Limit in the Help Menu
+        self.bm_limit_spinner = FCSpinner()
+        self.bm_limit_spinner.set_range(0, 9999)
+        self.bm_limit_label = QtWidgets.QLabel('%s:' % _('Bookmarks limit'))
+        self.bm_limit_label.setToolTip(
+            _("The maximum number of bookmarks that may be installed in the menu.\n"
+              "The number of bookmarks in the bookmark manager may be greater\n"
+              "but the menu will hold only so much.")
+        )
+
+        grid0.addWidget(self.bm_limit_label, 34, 0)
+        grid0.addWidget(self.bm_limit_spinner, 34, 1)
+
+        # Activity monitor icon
+        self.activity_label = QtWidgets.QLabel('%s:' % _("Activity Icon"))
+        self.activity_label.setToolTip(
+            _("Select the GIF that show activity when FlatCAM is active.")
+        )
+        self.activity_combo = FCComboBox()
+        self.activity_combo.addItems(['Ball black', 'Ball green', 'Arrow green', 'Eclipse green'])
+
+        grid0.addWidget(self.activity_label, 35, 0)
+        grid0.addWidget(self.activity_combo, 35, 1)
+
+        self.layout.addStretch()
+
+        self.mouse_cursor_color_cb.stateChanged.connect(self.on_mouse_cursor_color_enable)
+        self.mouse_cursor_entry.editingFinished.connect(self.on_mouse_cursor_entry)
+
+    def on_mouse_cursor_color_enable(self, val):
+        if val:
+            self.app.cursor_color_3D = self.app.defaults["global_cursor_color"]
+        else:
+            theme_settings = QtCore.QSettings("Open Source", "FlatCAM")
+            if theme_settings.contains("theme"):
+                theme = theme_settings.value('theme', type=str)
+            else:
+                theme = 'white'
+
+            if theme == 'white':
+                self.app.cursor_color_3D = 'black'
+            else:
+                self.app.cursor_color_3D = 'gray'
+
+    def on_mouse_cursor_entry(self):
+        self.app.defaults['global_cursor_color'] = self.mouse_cursor_entry.get_value()
+        self.app.cursor_color_3D = self.app.defaults["global_cursor_color"]

appGUI/preferences/general/GeneralAppPrefGroupUI.py

@@ -0,0 +1,401 @@
+import sys
+
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import RadioSet, FCSpinner, FCCheckBox, FCComboBox, FCButton, OptionalInputSection, \
+    FCDoubleSpinner
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class GeneralAppPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+        super(GeneralAppPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(_("App Preferences"))
+        self.decimals = decimals
+
+        # Create a form layout for the Application general settings
+        grid0 = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid0)
+        grid0.setColumnStretch(0, 0)
+        grid0.setColumnStretch(1, 1)
+
+        # Units for FlatCAM
+        self.unitslabel = QtWidgets.QLabel('<span style="color:red;"><b>%s:</b></span>' % _('Units'))
+        self.unitslabel.setToolTip(_("The default value for FlatCAM units.\n"
+                                     "Whatever is selected here is set every time\n"
+                                     "FlatCAM is started."))
+        self.units_radio = RadioSet([{'label': _('MM'), 'value': 'MM'},
+                                     {'label': _('IN'), 'value': 'IN'}])
+
+        grid0.addWidget(self.unitslabel, 0, 0)
+        grid0.addWidget(self.units_radio, 0, 1)
+
+        # Precision Metric
+        self.precision_metric_label = QtWidgets.QLabel('%s:' % _('Precision MM'))
+        self.precision_metric_label.setToolTip(
+            _("The number of decimals used throughout the application\n"
+              "when the set units are in METRIC system.\n"
+              "Any change here require an application restart.")
+        )
+        self.precision_metric_entry = FCSpinner()
+        self.precision_metric_entry.set_range(2, 16)
+        self.precision_metric_entry.setWrapping(True)
+
+        grid0.addWidget(self.precision_metric_label, 1, 0)
+        grid0.addWidget(self.precision_metric_entry, 1, 1)
+
+        # Precision Inch
+        self.precision_inch_label = QtWidgets.QLabel('%s:' % _('Precision INCH'))
+        self.precision_inch_label.setToolTip(
+            _("The number of decimals used throughout the application\n"
+              "when the set units are in INCH system.\n"
+              "Any change here require an application restart.")
+        )
+        self.precision_inch_entry = FCSpinner()
+        self.precision_inch_entry.set_range(2, 16)
+        self.precision_inch_entry.setWrapping(True)
+
+        grid0.addWidget(self.precision_inch_label, 2, 0)
+        grid0.addWidget(self.precision_inch_entry, 2, 1)
+
+        # Graphic Engine for FlatCAM
+        self.ge_label = QtWidgets.QLabel('<b>%s:</b>' % _('Graphic Engine'))
+        self.ge_label.setToolTip(_("Choose what graphic engine to use in FlatCAM.\n"
+                                   "Legacy(2D) -> reduced functionality, slow performance but enhanced compatibility.\n"
+                                   "OpenGL(3D) -> full functionality, high performance\n"
+                                   "Some graphic cards are too old and do not work in OpenGL(3D) mode, like:\n"
+                                   "Intel HD3000 or older. In this case the plot area will be black therefore\n"
+                                   "use the Legacy(2D) mode."))
+        self.ge_radio = RadioSet([{'label': _('Legacy(2D)'), 'value': '2D'},
+                                  {'label': _('OpenGL(3D)'), 'value': '3D'}],
+                                 orientation='vertical')
+
+        grid0.addWidget(self.ge_label, 3, 0)
+        grid0.addWidget(self.ge_radio, 3, 1)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line, 4, 0, 1, 2)
+
+        # Application Level for FlatCAM
+        self.app_level_label = QtWidgets.QLabel('<span style="color:red;"><b>%s:</b></span>' % _('APP. LEVEL'))
+        self.app_level_label.setToolTip(_("Choose the default level of usage for FlatCAM.\n"
+                                          "BASIC level -> reduced functionality, best for beginner's.\n"
+                                          "ADVANCED level -> full functionality.\n\n"
+                                          "The choice here will influence the parameters in\n"
+                                          "the Selected Tab for all kinds of FlatCAM objects."))
+        self.app_level_radio = RadioSet([{'label': _('Basic'), 'value': 'b'},
+                                         {'label': _('Advanced'), 'value': 'a'}])
+
+        grid0.addWidget(self.app_level_label, 5, 0)
+        grid0.addWidget(self.app_level_radio, 5, 1)
+
+        # Portability for FlatCAM
+        self.portability_cb = FCCheckBox('%s' % _('Portable app'))
+        self.portability_cb.setToolTip(_("Choose if the application should run as portable.\n\n"
+                                         "If Checked the application will run portable,\n"
+                                         "which means that the preferences files will be saved\n"
+                                         "in the application folder, in the lib\\config subfolder."))
+
+        grid0.addWidget(self.portability_cb, 6, 0, 1, 2)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line, 7, 0, 1, 2)
+
+        # Languages for FlatCAM
+        self.languagelabel = QtWidgets.QLabel('<b>%s</b>' % _('Languages'))
+        self.languagelabel.setToolTip(_("Set the language used throughout FlatCAM."))
+        self.language_cb = FCComboBox()
+
+        grid0.addWidget(self.languagelabel, 8, 0, 1, 2)
+        grid0.addWidget(self.language_cb, 9, 0, 1, 2)
+
+        self.language_apply_btn = FCButton(_("Apply Language"))
+        self.language_apply_btn.setToolTip(_("Set the language used throughout FlatCAM.\n"
+                                             "The app will restart after click."))
+
+        grid0.addWidget(self.language_apply_btn, 15, 0, 1, 2)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line, 16, 0, 1, 2)
+
+        # -----------------------------------------------------------
+        # ----------- APPLICATION STARTUP SETTINGS ------------------
+        # -----------------------------------------------------------
+
+        self.startup_label = QtWidgets.QLabel('<b>%s</b>' % _('Startup Settings'))
+        grid0.addWidget(self.startup_label, 17, 0, 1, 2)
+
+        # Splash Screen
+        self.splash_cb = FCCheckBox('%s' % _('Splash Screen'))
+        self.splash_cb.setToolTip(
+            _("Enable display of the splash screen at application startup.")
+        )
+
+        qsettings = QSettings("Open Source", "FlatCAM")
+        if qsettings.value("splash_screen"):
+            self.splash_cb.set_value(True)
+        else:
+            self.splash_cb.set_value(False)
+
+        grid0.addWidget(self.splash_cb, 18, 0, 1, 2)
+
+        # Sys Tray Icon
+        self.systray_cb = FCCheckBox('%s' % _('Sys Tray Icon'))
+        self.systray_cb.setToolTip(
+            _("Enable display of FlatCAM icon in Sys Tray.")
+        )
+        grid0.addWidget(self.systray_cb, 19, 0, 1, 2)
+
+        # Shell StartUp CB
+        self.shell_startup_cb = FCCheckBox(label='%s' % _('Show Shell'))
+        self.shell_startup_cb.setToolTip(
+            _("Check this box if you want the shell to\n"
+              "start automatically at startup.")
+        )
+
+        grid0.addWidget(self.shell_startup_cb, 20, 0, 1, 2)
+
+        # Project at StartUp CB
+        self.project_startup_cb = FCCheckBox(label='%s' % _('Show Project'))
+        self.project_startup_cb.setToolTip(
+            _("Check this box if you want the project/selected/tool tab area to\n"
+              "to be shown automatically at startup.")
+        )
+        grid0.addWidget(self.project_startup_cb, 21, 0, 1, 2)
+
+        # Version Check CB
+        self.version_check_cb = FCCheckBox(label='%s' % _('Version Check'))
+        self.version_check_cb.setToolTip(
+            _("Check this box if you want to check\n"
+              "for a new version automatically at startup.")
+        )
+
+        grid0.addWidget(self.version_check_cb, 22, 0, 1, 2)
+
+        # Send Stats CB
+        self.send_stats_cb = FCCheckBox(label='%s' % _('Send Statistics'))
+        self.send_stats_cb.setToolTip(
+            _("Check this box if you agree to send anonymous\n"
+              "stats automatically at startup, to help improve FlatCAM.")
+        )
+
+        grid0.addWidget(self.send_stats_cb, 23, 0, 1, 2)
+
+        self.ois_version_check = OptionalInputSection(self.version_check_cb, [self.send_stats_cb])
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line, 24, 0, 1, 2)
+
+        # Worker Numbers
+        self.worker_number_label = QtWidgets.QLabel('%s:' % _('Workers number'))
+        self.worker_number_label.setToolTip(
+            _("The number of Qthreads made available to the App.\n"
+              "A bigger number may finish the jobs more quickly but\n"
+              "depending on your computer speed, may make the App\n"
+              "unresponsive. Can have a value between 2 and 16.\n"
+              "Default value is 2.\n"
+              "After change, it will be applied at next App start.")
+        )
+        self.worker_number_sb = FCSpinner()
+        self.worker_number_sb.set_range(2, 16)
+
+        grid0.addWidget(self.worker_number_label, 25, 0)
+        grid0.addWidget(self.worker_number_sb, 25, 1)
+
+        # Geometric tolerance
+        tol_label = QtWidgets.QLabel('%s:' % _("Geo Tolerance"))
+        tol_label.setToolTip(_(
+            "This value can counter the effect of the Circle Steps\n"
+            "parameter. Default value is 0.005.\n"
+            "A lower value will increase the detail both in image\n"
+            "and in Gcode for the circles, with a higher cost in\n"
+            "performance. Higher value will provide more\n"
+            "performance at the expense of level of detail."
+        ))
+        self.tol_entry = FCDoubleSpinner()
+        self.tol_entry.setSingleStep(0.001)
+        self.tol_entry.set_precision(6)
+
+        grid0.addWidget(tol_label, 26, 0)
+        grid0.addWidget(self.tol_entry, 26, 1)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line, 27, 0, 1, 2)
+
+        # Save Settings
+        self.save_label = QtWidgets.QLabel('<b>%s</b>' % _("Save Settings"))
+        grid0.addWidget(self.save_label, 28, 0, 1, 2)
+
+        # Save compressed project CB
+        self.save_type_cb = FCCheckBox(_('Save Compressed Project'))
+        self.save_type_cb.setToolTip(
+            _("Whether to save a compressed or uncompressed project.\n"
+              "When checked it will save a compressed FlatCAM project.")
+        )
+
+        grid0.addWidget(self.save_type_cb, 29, 0, 1, 2)
+
+        # Project LZMA Comppression Level
+        self.compress_spinner = FCSpinner()
+        self.compress_spinner.set_range(0, 9)
+        self.compress_label = QtWidgets.QLabel('%s:' % _('Compression'))
+        self.compress_label.setToolTip(
+            _("The level of compression used when saving\n"
+              "a FlatCAM project. Higher value means better compression\n"
+              "but require more RAM usage and more processing time.")
+        )
+
+        grid0.addWidget(self.compress_label, 30, 0)
+        grid0.addWidget(self.compress_spinner, 30, 1)
+
+        self.proj_ois = OptionalInputSection(self.save_type_cb, [self.compress_label, self.compress_spinner], True)
+
+        # Auto save CB
+        self.autosave_cb = FCCheckBox(_('Enable Auto Save'))
+        self.autosave_cb.setToolTip(
+            _("Check to enable the autosave feature.\n"
+              "When enabled, the application will try to save a project\n"
+              "at the set interval.")
+        )
+
+        grid0.addWidget(self.autosave_cb, 31, 0, 1, 2)
+
+        # Auto Save Timeout Interval
+        self.autosave_entry = FCSpinner()
+        self.autosave_entry.set_range(0, 9999999)
+        self.autosave_label = QtWidgets.QLabel('%s:' % _('Interval'))
+        self.autosave_label.setToolTip(
+            _("Time interval for autosaving. In milliseconds.\n"
+              "The application will try to save periodically but only\n"
+              "if the project was saved manually at least once.\n"
+              "While active, some operations may block this feature.")
+        )
+
+        grid0.addWidget(self.autosave_label, 32, 0)
+        grid0.addWidget(self.autosave_entry, 32, 1)
+
+        # self.as_ois = OptionalInputSection(self.autosave_cb, [self.autosave_label, self.autosave_entry], True)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line, 33, 0, 1, 2)
+
+        self.pdf_param_label = QtWidgets.QLabel('<B>%s:</b>' % _("Text to PDF parameters"))
+        self.pdf_param_label.setToolTip(
+            _("Used when saving text in Code Editor or in FlatCAM Document objects.")
+        )
+        grid0.addWidget(self.pdf_param_label, 34, 0, 1, 2)
+
+        # Top Margin value
+        self.tmargin_entry = FCDoubleSpinner()
+        self.tmargin_entry.set_precision(self.decimals)
+        self.tmargin_entry.set_range(0.0000, 9999.9999)
+
+        self.tmargin_label = QtWidgets.QLabel('%s:' % _("Top Margin"))
+        self.tmargin_label.setToolTip(
+            _("Distance between text body and the top of the PDF file.")
+        )
+
+        grid0.addWidget(self.tmargin_label, 35, 0)
+        grid0.addWidget(self.tmargin_entry, 35, 1)
+
+        # Bottom Margin value
+        self.bmargin_entry = FCDoubleSpinner()
+        self.bmargin_entry.set_precision(self.decimals)
+        self.bmargin_entry.set_range(0.0000, 9999.9999)
+
+        self.bmargin_label = QtWidgets.QLabel('%s:' % _("Bottom Margin"))
+        self.bmargin_label.setToolTip(
+            _("Distance between text body and the bottom of the PDF file.")
+        )
+
+        grid0.addWidget(self.bmargin_label, 36, 0)
+        grid0.addWidget(self.bmargin_entry, 36, 1)
+
+        # Left Margin value
+        self.lmargin_entry = FCDoubleSpinner()
+        self.lmargin_entry.set_precision(self.decimals)
+        self.lmargin_entry.set_range(0.0000, 9999.9999)
+
+        self.lmargin_label = QtWidgets.QLabel('%s:' % _("Left Margin"))
+        self.lmargin_label.setToolTip(
+            _("Distance between text body and the left of the PDF file.")
+        )
+
+        grid0.addWidget(self.lmargin_label, 37, 0)
+        grid0.addWidget(self.lmargin_entry, 37, 1)
+
+        # Right Margin value
+        self.rmargin_entry = FCDoubleSpinner()
+        self.rmargin_entry.set_precision(self.decimals)
+        self.rmargin_entry.set_range(0.0000, 9999.9999)
+
+        self.rmargin_label = QtWidgets.QLabel('%s:' % _("Right Margin"))
+        self.rmargin_label.setToolTip(
+            _("Distance between text body and the right of the PDF file.")
+        )
+
+        grid0.addWidget(self.rmargin_label, 38, 0)
+        grid0.addWidget(self.rmargin_entry, 38, 1)
+
+        self.layout.addStretch()
+
+        if sys.platform != 'win32':
+            self.portability_cb.hide()
+
+        # splash screen button signal
+        self.splash_cb.stateChanged.connect(self.on_splash_changed)
+
+        # Monitor the checkbox from the Application Defaults Tab and show the TCL shell or not depending on it's value
+        self.shell_startup_cb.clicked.connect(self.on_toggle_shell_from_settings)
+
+        self.language_apply_btn.clicked.connect(lambda: fcTranslate.on_language_apply_click(app=self.app, restart=True))
+
+    def on_toggle_shell_from_settings(self, state):
+        """
+        Toggle shell ui: if is visible close it, if it is closed then open it
+
+        :return: None
+        """
+
+        if state is True:
+            if not self.app.ui.shell_dock.isVisible():
+                self.app.ui.shell_dock.show()
+        else:
+            if self.app.ui.shell_dock.isVisible():
+                self.app.ui.shell_dock.hide()
+
+    @staticmethod
+    def on_splash_changed(state):
+        qsettings = QSettings("Open Source", "FlatCAM")
+        qsettings.setValue('splash_screen', 1) if state else qsettings.setValue('splash_screen', 0)
+
+        # This will write the setting to the platform specific storage.
+        del qsettings

appGUI/preferences/general/GeneralAppSettingsGroupUI.py

@@ -0,0 +1,302 @@
+
+from PyQt5 import QtCore
+from PyQt5.QtCore import QSettings
+from appGUI.GUIElements import OptionalInputSection
+from appGUI.preferences import settings
+from appGUI.preferences.OptionUI import *
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI2
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+
+class GeneralAppSettingsGroupUI(OptionsGroupUI2):
+    def __init__(self, decimals=4, **kwargs):
+        self.decimals = decimals
+        self.pagesize = {}
+        self.pagesize.update(
+            {
+                'A0': (841, 1189),
+                'A1': (594, 841),
+                'A2': (420, 594),
+                'A3': (297, 420),
+                'A4': (210, 297),
+                'A5': (148, 210),
+                'A6': (105, 148),
+                'A7': (74, 105),
+                'A8': (52, 74),
+                'A9': (37, 52),
+                'A10': (26, 37),
+
+                'B0': (1000, 1414),
+                'B1': (707, 1000),
+                'B2': (500, 707),
+                'B3': (353, 500),
+                'B4': (250, 353),
+                'B5': (176, 250),
+                'B6': (125, 176),
+                'B7': (88, 125),
+                'B8': (62, 88),
+                'B9': (44, 62),
+                'B10': (31, 44),
+
+                'C0': (917, 1297),
+                'C1': (648, 917),
+                'C2': (458, 648),
+                'C3': (324, 458),
+                'C4': (229, 324),
+                'C5': (162, 229),
+                'C6': (114, 162),
+                'C7': (81, 114),
+                'C8': (57, 81),
+                'C9': (40, 57),
+                'C10': (28, 40),
+
+                # American paper sizes
+                'LETTER': (8.5, 11),
+                'LEGAL': (8.5, 14),
+                'ELEVENSEVENTEEN': (11, 17),
+
+                # From https://en.wikipedia.org/wiki/Paper_size
+                'JUNIOR_LEGAL': (5, 8),
+                'HALF_LETTER': (5.5, 8),
+                'GOV_LETTER': (8, 10.5),
+                'GOV_LEGAL': (8.5, 13),
+                'LEDGER': (17, 11),
+            }
+        )
+        super().__init__(**kwargs)
+
+        self.setTitle(str(_("App Settings")))
+
+        qsettings = QSettings("Open Source", "FlatCAM")
+
+        self.notebook_font_size_field = self.option_dict()["notebook_font_size"].get_field()
+        if qsettings.contains("notebook_font_size"):
+            self.notebook_font_size_field.set_value(qsettings.value('notebook_font_size', type=int))
+        else:
+            self.notebook_font_size_field.set_value(12)
+
+        self.axis_font_size_field = self.option_dict()["axis_font_size"].get_field()
+        if qsettings.contains("axis_font_size"):
+            self.axis_font_size_field.set_value(qsettings.value('axis_font_size', type=int))
+        else:
+            self.axis_font_size_field.set_value(8)
+
+        self.textbox_font_size_field = self.option_dict()["textbox_font_size"].get_field()
+        if qsettings.contains("textbox_font_size"):
+            self.textbox_font_size_field.set_value(settings.value('textbox_font_size', type=int))
+        else:
+            self.textbox_font_size_field.set_value(10)
+
+        self.workspace_enabled_field = self.option_dict()["global_workspace"].get_field()
+        self.workspace_type_field = self.option_dict()["global_workspaceT"].get_field()
+        self.workspace_type_label = self.option_dict()["global_workspaceT"].label_widget
+        self.workspace_orientation_field = self.option_dict()["global_workspace_orientation"].get_field()
+        self.workspace_orientation_label = self.option_dict()["global_workspace_orientation"].label_widget
+        self.wks = OptionalInputSection(self.workspace_enabled_field, [self.workspace_type_label, self.workspace_type_field, self.workspace_orientation_label, self.workspace_orientation_field])
+
+        self.mouse_cursor_color_enabled_field = self.option_dict()["global_cursor_color_enabled"].get_field()
+        self.mouse_cursor_color_field = self.option_dict()["global_cursor_color"].get_field()
+        self.mouse_cursor_color_label = self.option_dict()["global_cursor_color"].label_widget
+        self.mois = OptionalInputSection(self.mouse_cursor_color_enabled_field, [self.mouse_cursor_color_label, self.mouse_cursor_color_field])
+        self.mouse_cursor_color_enabled_field.stateChanged.connect(self.on_mouse_cursor_color_enable)
+        self.mouse_cursor_color_field.entry.editingFinished.connect(self.on_mouse_cursor_entry)
+
+    def build_options(self) -> [OptionUI]:
+        return [
+            HeadingOptionUI(label_text="Grid Settings", label_tooltip=None),
+            DoubleSpinnerOptionUI(
+                option="global_gridx",
+                label_text="X value",
+                label_tooltip="This is the Grid snap value on X axis.",
+                step=0.1,
+                decimals=self.decimals
+            ),
+            DoubleSpinnerOptionUI(
+                option="global_gridy",
+                label_text='Y value',
+                label_tooltip="This is the Grid snap value on Y axis.",
+                step=0.1,
+                decimals=self.decimals
+            ),
+            DoubleSpinnerOptionUI(
+                option="global_snap_max",
+                label_text="Snap Max",
+                label_tooltip="Max. magnet distance",
+                step=0.1,
+                decimals=self.decimals
+            ),
+            SeparatorOptionUI(),
+
+            HeadingOptionUI(label_text="Workspace Settings", label_tooltip=None),
+            CheckboxOptionUI(
+                option="global_workspace",
+                label_text="Active",
+                label_tooltip="Draw a delimiting rectangle on canvas.\n"
+                              "The purpose is to illustrate the limits for our work."
+            ),
+            ComboboxOptionUI(
+                option="global_workspaceT",
+                label_text="Size",
+                label_tooltip="Select the type of rectangle to be used on canvas,\nas valid workspace.",
+                choices=list(self.pagesize.keys())
+            ),
+            RadioSetOptionUI(
+                option="global_workspace_orientation",
+                label_text="Orientation",
+                label_tooltip="Can be:\n- Portrait\n- Landscape",
+                choices=[
+                    {'label': _('Portrait'), 'value': 'p'},
+                    {'label': _('Landscape'), 'value': 'l'},
+                ]
+            ),
+            # FIXME enabling OptionalInputSection ??
+            SeparatorOptionUI(),
+
+            HeadingOptionUI(label_text="Font Size", label_tooltip=None),
+            SpinnerOptionUI(
+                option="notebook_font_size",
+                label_text="Notebook",
+                label_tooltip="This sets the font size for the elements found in the Notebook.\n"
+                              "The notebook is the collapsible area in the left side of the GUI,\n"
+                              "and include the Project, Selected and Tool tabs.",
+                min_value=8, max_value=40, step=1
+            ),
+            SpinnerOptionUI(
+                option="axis_font_size",
+                label_text="Axis",
+                label_tooltip="This sets the font size for canvas axis.",
+                min_value=8, max_value=40, step=1
+            ),
+            SpinnerOptionUI(
+                option="textbox_font_size",
+                label_text="Textbox",
+                label_tooltip="This sets the font size for the Textbox GUI\n"
+                              "elements that are used in the application.",
+                min_value=8, max_value=40, step=1
+            ),
+            SeparatorOptionUI(),
+
+            HeadingOptionUI(label_text="Mouse Settings", label_tooltip=None),
+            RadioSetOptionUI(
+                option="global_cursor_type",
+                label_text="Cursor Shape",
+                label_tooltip="Choose a mouse cursor shape.\n"
+                              "- Small -> with a customizable size.\n"
+                              "- Big -> Infinite lines",
+                choices=[
+                    {"label": _("Small"), "value": "small"},
+                    {"label": _("Big"), "value": "big"}
+                ]
+            ),
+            SpinnerOptionUI(
+                option="global_cursor_size",
+                label_text="Cursor Size",
+                label_tooltip="Set the size of the mouse cursor, in pixels.",
+                min_value=10, max_value=70, step=1
+            ),
+            SpinnerOptionUI(
+                option="global_cursor_width",
+                label_text="Cursor Width",
+                label_tooltip="Set the line width of the mouse cursor, in pixels.",
+                min_value=1, max_value=10, step=1
+            ),
+            CheckboxOptionUI(
+                option="global_cursor_color_enabled",
+                label_text="Cursor Color",
+                label_tooltip="Check this box to color mouse cursor."
+            ),
+            ColorOptionUI(
+                option="global_cursor_color",
+                label_text="Cursor Color",
+                label_tooltip="Set the color of the mouse cursor."
+            ),
+            # FIXME enabling of cursor color
+            RadioSetOptionUI(
+                option="global_pan_button",
+                label_text="Pan Button",
+                label_tooltip="Select the mouse button to use for panning:\n"
+                              "- MMB --> Middle Mouse Button\n"
+                              "- RMB --> Right Mouse Button",
+                choices=[{'label': _('MMB'), 'value': '3'},
+                         {'label': _('RMB'), 'value': '2'}]
+            ),
+            RadioSetOptionUI(
+                option="global_mselect_key",
+                label_text="Multiple Selection",
+                label_tooltip="Select the key used for multiple selection.",
+                choices=[{'label': _('CTRL'),  'value': 'Control'},
+                         {'label': _('SHIFT'), 'value': 'Shift'}]
+            ),
+            SeparatorOptionUI(),
+
+            CheckboxOptionUI(
+                option="global_delete_confirmation",
+                label_text="Delete object confirmation",
+                label_tooltip="When checked the application will ask for user confirmation\n"
+                              "whenever the Delete object(s) event is triggered, either by\n"
+                              "menu shortcut or key shortcut."
+            ),
+            CheckboxOptionUI(
+                option="global_open_style",
+                label_text='"Open" behavior',
+                label_tooltip="When checked the path for the last saved file is used when saving files,\n"
+                              "and the path for the last opened file is used when opening files.\n\n"
+                              "When unchecked the path for opening files is the one used last: either the\n"
+                              "path for saving files or the path for opening files."
+            ),
+            CheckboxOptionUI(
+                option="global_toggle_tooltips",
+                label_text="Enable ToolTips",
+                label_tooltip="Check this box if you want to have toolTips displayed\n"
+                              "when hovering with mouse over items throughout the App."
+            ),
+            CheckboxOptionUI(
+                option="global_machinist_setting",
+                label_text="Allow Machinist Unsafe Settings",
+                label_tooltip="If checked, some of the application settings will be allowed\n"
+                              "to have values that are usually unsafe to use.\n"
+                              "Like Z travel negative values or Z Cut positive values.\n"
+                              "It will applied at the next application start.\n"
+                              "<<WARNING>>: Don't change this unless you know what you are doing !!!"
+            ),
+            SpinnerOptionUI(
+                option="global_bookmarks_limit",
+                label_text="Bookmarks limit",
+                label_tooltip="The maximum number of bookmarks that may be installed in the menu.\n"
+                              "The number of bookmarks in the bookmark manager may be greater\n"
+                              "but the menu will hold only so much.",
+                min_value=0, max_value=9999, step=1
+            ),
+            ComboboxOptionUI(
+                option="global_activity_icon",
+                label_text="Activity Icon",
+                label_tooltip="Select the GIF that show activity when FlatCAM is active.",
+                choices=['Ball black', 'Ball green', 'Arrow green', 'Eclipse green']
+            )
+
+        ]
+
+    def on_mouse_cursor_color_enable(self, val):
+        if val:
+            self.app.cursor_color_3D = self.app.defaults["global_cursor_color"]
+        else:
+            theme_settings = QtCore.QSettings("Open Source", "FlatCAM")
+            if theme_settings.contains("theme"):
+                theme = theme_settings.value('theme', type=str)
+            else:
+                theme = 'white'
+
+            if theme == 'white':
+                self.app.cursor_color_3D = 'black'
+            else:
+                self.app.cursor_color_3D = 'gray'
+
+    def on_mouse_cursor_entry(self):
+        self.app.defaults['global_cursor_color'] = self.mouse_cursor_color_field.get_value()
+        self.app.cursor_color_3D = self.app.defaults["global_cursor_color"]

appGUI/preferences/general/GeneralGUIPrefGroupUI.py

@@ -0,0 +1,545 @@
+from PyQt5 import QtWidgets, QtCore, QtGui
+from PyQt5.QtCore import QSettings, Qt
+
+from appGUI.GUIElements import RadioSet, FCCheckBox, FCComboBox, FCSliderWithSpinner, FCColorEntry
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class GeneralGUIPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+        super(GeneralGUIPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("GUI Preferences")))
+        self.decimals = decimals
+
+        # Create a grid layout for the Application general settings
+        grid0 = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid0)
+        grid0.setColumnStretch(0, 0)
+        grid0.setColumnStretch(1, 1)
+
+        # Theme selection
+        self.theme_label = QtWidgets.QLabel('%s:' % _('Theme'))
+        self.theme_label.setToolTip(
+            _("Select a theme for the application.\n"
+              "It will theme the plot area.")
+        )
+
+        self.theme_radio = RadioSet([
+            {"label": _("Light"), "value": "white"},
+            {"label": _("Dark"), "value": "black"}
+        ], orientation='vertical')
+
+        grid0.addWidget(self.theme_label, 0, 0)
+        grid0.addWidget(self.theme_radio, 0, 1)
+
+        # Enable Gray Icons
+        self.gray_icons_cb = FCCheckBox('%s' % _('Use Gray Icons'))
+        self.gray_icons_cb.setToolTip(
+            _("Check this box to use a set of icons with\n"
+              "a lighter (gray) color. To be used when a\n"
+              "full dark theme is applied.")
+        )
+        grid0.addWidget(self.gray_icons_cb, 1, 0, 1, 3)
+
+        # self.theme_button = FCButton(_("Apply Theme"))
+        # self.theme_button.setToolTip(
+        #     _("Select a theme for FlatCAM.\n"
+        #       "It will theme the plot area.\n"
+        #       "The application will restart after change.")
+        # )
+        # grid0.addWidget(self.theme_button, 2, 0, 1, 3)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line, 3, 0, 1, 2)
+
+        # Layout selection
+        self.layout_label = QtWidgets.QLabel('%s:' % _('Layout'))
+        self.layout_label.setToolTip(
+            _("Select a layout for the application.\n"
+              "It is applied immediately.")
+        )
+        self.layout_combo = FCComboBox()
+        # don't translate the QCombo items as they are used in QSettings and identified by name
+        self.layout_combo.addItem("standard")
+        self.layout_combo.addItem("compact")
+        self.layout_combo.addItem("minimal")
+
+        grid0.addWidget(self.layout_label, 4, 0)
+        grid0.addWidget(self.layout_combo, 4, 1)
+
+        # Set the current index for layout_combo
+        qsettings = QSettings("Open Source", "FlatCAM")
+        if qsettings.contains("layout"):
+            layout = qsettings.value('layout', type=str)
+            idx = self.layout_combo.findText(layout.capitalize())
+            self.layout_combo.setCurrentIndex(idx)
+
+        # Style selection
+        self.style_label = QtWidgets.QLabel('%s:' % _('Style'))
+        self.style_label.setToolTip(
+            _("Select a style for the application.\n"
+              "It will be applied at the next app start.")
+        )
+        self.style_combo = FCComboBox()
+        self.style_combo.addItems(QtWidgets.QStyleFactory.keys())
+        # find current style
+        index = self.style_combo.findText(QtWidgets.qApp.style().objectName(), QtCore.Qt.MatchFixedString)
+        self.style_combo.setCurrentIndex(index)
+        self.style_combo.activated[str].connect(self.handle_style)
+
+        grid0.addWidget(self.style_label, 5, 0)
+        grid0.addWidget(self.style_combo, 5, 1)
+
+        # Enable High DPI Support
+        self.hdpi_cb = FCCheckBox('%s' % _('Activate HDPI Support'))
+        self.hdpi_cb.setToolTip(
+            _("Enable High DPI support for the application.\n"
+              "It will be applied at the next app start.")
+        )
+
+        qsettings = QSettings("Open Source", "FlatCAM")
+        if qsettings.contains("hdpi"):
+            self.hdpi_cb.set_value(qsettings.value('hdpi', type=int))
+        else:
+            self.hdpi_cb.set_value(False)
+        self.hdpi_cb.stateChanged.connect(self.handle_hdpi)
+
+        grid0.addWidget(self.hdpi_cb, 6, 0, 1, 3)
+
+        # Enable Hover box
+        self.hover_cb = FCCheckBox('%s' % _('Display Hover Shape'))
+        self.hover_cb.setToolTip(
+            _("Enable display of a hover shape for the application objects.\n"
+              "It is displayed whenever the mouse cursor is hovering\n"
+              "over any kind of not-selected object.")
+        )
+        grid0.addWidget(self.hover_cb, 8, 0, 1, 3)
+
+        # Enable Selection box
+        self.selection_cb = FCCheckBox('%s' % _('Display Selection Shape'))
+        self.selection_cb.setToolTip(
+            _("Enable the display of a selection shape for the application objects.\n"
+              "It is displayed whenever the mouse selects an object\n"
+              "either by clicking or dragging mouse from left to right or\n"
+              "right to left.")
+        )
+        grid0.addWidget(self.selection_cb, 9, 0, 1, 3)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line, 14, 0, 1, 2)
+
+        # Plot Selection (left - right) Color
+        self.sel_lr_label = QtWidgets.QLabel('<b>%s</b>' % _('Left-Right Selection Color'))
+        grid0.addWidget(self.sel_lr_label, 15, 0, 1, 2)
+
+        self.sl_color_label = QtWidgets.QLabel('%s:' % _('Outline'))
+        self.sl_color_label.setToolTip(
+            _("Set the line color for the 'left to right' selection box.")
+        )
+        self.sl_color_entry = FCColorEntry()
+
+        grid0.addWidget(self.sl_color_label, 16, 0)
+        grid0.addWidget(self.sl_color_entry, 16, 1)
+
+        self.sf_color_label = QtWidgets.QLabel('%s:' % _('Fill'))
+        self.sf_color_label.setToolTip(
+            _("Set the fill color for the selection box\n"
+              "in case that the selection is done from left to right.\n"
+              "First 6 digits are the color and the last 2\n"
+              "digits are for alpha (transparency) level.")
+        )
+        self.sf_color_entry = FCColorEntry()
+
+        grid0.addWidget(self.sf_color_label, 17, 0)
+        grid0.addWidget(self.sf_color_entry, 17, 1)
+
+        # Plot Selection (left - right) Fill Transparency Level
+        self.left_right_alpha_label = QtWidgets.QLabel('%s:' % _('Alpha'))
+        self.left_right_alpha_label.setToolTip(
+            _("Set the fill transparency for the 'left to right' selection box.")
+        )
+        self.left_right_alpha_entry = FCSliderWithSpinner(0, 255, 1)
+
+        grid0.addWidget(self.left_right_alpha_label, 18, 0)
+        grid0.addWidget(self.left_right_alpha_entry, 18, 1)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line, 19, 0, 1, 2)
+
+        # Plot Selection (left - right) Color
+        self.sel_rl_label = QtWidgets.QLabel('<b>%s</b>' % _('Right-Left Selection Color'))
+        grid0.addWidget(self.sel_rl_label, 20, 0, 1, 2)
+
+        # Plot Selection (right - left) Line Color
+        self.alt_sl_color_label = QtWidgets.QLabel('%s:' % _('Outline'))
+        self.alt_sl_color_label.setToolTip(
+            _("Set the line color for the 'right to left' selection box.")
+        )
+        self.alt_sl_color_entry = FCColorEntry()
+
+        grid0.addWidget(self.alt_sl_color_label, 21, 0)
+        grid0.addWidget(self.alt_sl_color_entry, 21, 1)
+
+        # Plot Selection (right - left) Fill Color
+        self.alt_sf_color_label = QtWidgets.QLabel('%s:' % _('Fill'))
+        self.alt_sf_color_label.setToolTip(
+            _("Set the fill color for the selection box\n"
+              "in case that the selection is done from right to left.\n"
+              "First 6 digits are the color and the last 2\n"
+              "digits are for alpha (transparency) level.")
+        )
+        self.alt_sf_color_entry = FCColorEntry()
+
+        grid0.addWidget(self.alt_sf_color_label, 22, 0)
+        grid0.addWidget(self.alt_sf_color_entry, 22, 1)
+
+        # Plot Selection (right - left) Fill Transparency Level
+        self.right_left_alpha_label = QtWidgets.QLabel('%s:' % _('Alpha'))
+        self.right_left_alpha_label.setToolTip(
+            _("Set the fill transparency for selection 'right to left' box.")
+        )
+        self.right_left_alpha_entry = FCSliderWithSpinner(0, 255, 1)
+
+        grid0.addWidget(self.right_left_alpha_label, 23, 0)
+        grid0.addWidget(self.right_left_alpha_entry, 23, 1)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line, 24, 0, 1, 2)
+
+        # ------------------------------------------------------------------
+        # ----------------------- Editor Color -----------------------------
+        # ------------------------------------------------------------------
+
+        self.editor_color_label = QtWidgets.QLabel('<b>%s</b>' % _('Editor Color'))
+        grid0.addWidget(self.editor_color_label, 25, 0, 1, 2)
+
+        # Editor Draw Color
+        self.draw_color_label = QtWidgets.QLabel('%s:' % _('Drawing'))
+        self.alt_sf_color_label.setToolTip(
+            _("Set the color for the shape.")
+        )
+        self.draw_color_entry = FCColorEntry()
+
+        grid0.addWidget(self.draw_color_label, 26, 0)
+        grid0.addWidget(self.draw_color_entry, 26, 1)
+
+        # Editor Draw Selection Color
+        self.sel_draw_color_label = QtWidgets.QLabel('%s:' % _('Selection'))
+        self.sel_draw_color_label.setToolTip(
+            _("Set the color of the shape when selected.")
+        )
+        self.sel_draw_color_entry = FCColorEntry()
+
+        grid0.addWidget(self.sel_draw_color_label, 27, 0)
+        grid0.addWidget(self.sel_draw_color_entry, 27, 1)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line, 28, 0, 1, 2)
+
+        # ------------------------------------------------------------------
+        # ----------------------- Project Settings -----------------------------
+        # ------------------------------------------------------------------
+
+        self.proj_settings_label = QtWidgets.QLabel('<b>%s</b>' % _('Project Items Color'))
+        grid0.addWidget(self.proj_settings_label, 29, 0, 1, 2)
+
+        # Project Tab items color
+        self.proj_color_label = QtWidgets.QLabel('%s:' % _('Enabled'))
+        self.proj_color_label.setToolTip(
+            _("Set the color of the items in Project Tab Tree.")
+        )
+        self.proj_color_entry = FCColorEntry()
+
+        grid0.addWidget(self.proj_color_label, 30, 0)
+        grid0.addWidget(self.proj_color_entry, 30, 1)
+
+        self.proj_color_dis_label = QtWidgets.QLabel('%s:' % _('Disabled'))
+        self.proj_color_dis_label.setToolTip(
+            _("Set the color of the items in Project Tab Tree,\n"
+              "for the case when the items are disabled.")
+        )
+        self.proj_color_dis_entry = FCColorEntry()
+
+        grid0.addWidget(self.proj_color_dis_label, 31, 0)
+        grid0.addWidget(self.proj_color_dis_entry, 31, 1)
+
+        # Project autohide CB
+        self.project_autohide_cb = FCCheckBox(label=_('Project AutoHide'))
+        self.project_autohide_cb.setToolTip(
+            _("Check this box if you want the project/selected/tool tab area to\n"
+              "hide automatically when there are no objects loaded and\n"
+              "to show whenever a new object is created.")
+        )
+
+        grid0.addWidget(self.project_autohide_cb, 32, 0, 1, 2)
+
+        # Just to add empty rows
+        grid0.addWidget(QtWidgets.QLabel(''), 33, 0, 1, 2)
+
+        self.layout.addStretch()
+
+        # #############################################################################
+        # ############################# GUI COLORS SIGNALS ############################
+        # #############################################################################
+
+        # Setting selection (left - right) colors signals
+        self.sf_color_entry.editingFinished.connect(self.on_sf_color_entry)
+        self.sl_color_entry.editingFinished.connect(self.on_sl_color_entry)
+
+        self.left_right_alpha_entry.valueChanged.connect(self.on_left_right_alpha_changed)  # alpha
+
+        # Setting selection (right - left) colors signals
+        self.alt_sf_color_entry.editingFinished.connect(self.on_alt_sf_color_entry)
+        self.alt_sl_color_entry.editingFinished.connect(self.on_alt_sl_color_entry)
+
+        self.right_left_alpha_entry.valueChanged.connect(self.on_right_left_alpha_changed)  # alpha
+
+        # Setting Editor Draw colors signals
+        self.draw_color_entry.editingFinished.connect(self.on_draw_color_entry)
+        self.sel_draw_color_entry.editingFinished.connect(self.on_sel_draw_color_entry)
+
+        self.proj_color_entry.editingFinished.connect(self.on_proj_color_entry)
+        self.proj_color_dis_entry.editingFinished.connect(self.on_proj_color_dis_entry)
+
+        self.layout_combo.activated.connect(self.on_layout)
+
+    @staticmethod
+    def handle_style(style):
+        # set current style
+        qsettings = QSettings("Open Source", "FlatCAM")
+        qsettings.setValue('style', style)
+
+        # This will write the setting to the platform specific storage.
+        del qsettings
+
+    @staticmethod
+    def handle_hdpi(state):
+        # set current HDPI
+        qsettings = QSettings("Open Source", "FlatCAM")
+        qsettings.setValue('hdpi', state)
+
+        # This will write the setting to the platform specific storage.
+        del qsettings
+
+    # Setting selection colors (left - right) handlers
+    def on_sf_color_entry(self):
+        self.app.defaults['global_sel_fill'] = self.app.defaults['global_sel_fill'][7:9]
+
+    def on_sl_color_entry(self):
+        self.app.defaults['global_sel_line'] = self.sl_color_entry.get_value()[:7] + \
+            self.app.defaults['global_sel_line'][7:9]
+
+    def on_left_right_alpha_changed(self, spinner_value):
+        """
+        Change the alpha level for the color of the selection box when selection is done left to right.
+        Called on valueChanged of a FCSliderWithSpinner.
+
+        :param spinner_value:   passed value within [0, 255]
+        :type spinner_value:    int
+        :return:                None
+        :rtype:
+        """
+
+        self.app.defaults['global_sel_fill'] = self.app.defaults['global_sel_fill'][:7] + \
+            (hex(spinner_value)[2:] if int(hex(spinner_value)[2:], 16) > 0 else '00')
+        self.app.defaults['global_sel_line'] = self.app.defaults['global_sel_line'][:7] + \
+            (hex(spinner_value)[2:] if int(hex(spinner_value)[2:], 16) > 0 else '00')
+
+    # Setting selection colors (right - left) handlers
+    def on_alt_sf_color_entry(self):
+        self.app.defaults['global_alt_sel_fill'] = self.alt_sf_color_entry.get_value()[:7] + \
+                                                   self.app.defaults['global_alt_sel_fill'][7:9]
+
+    def on_alt_sl_color_entry(self):
+        self.app.defaults['global_alt_sel_line'] = self.alt_sl_color_entry.get_value()[:7] + \
+                                                   self.app.defaults['global_alt_sel_line'][7:9]
+
+    def on_right_left_alpha_changed(self, spinner_value):
+        """
+        Change the alpha level for the color of the selection box when selection is done right to left.
+        Called on valueChanged of a FCSliderWithSpinner.
+
+        :param spinner_value:   passed value within [0, 255]
+        :type spinner_value:    int
+        :return:                None
+        :rtype:
+        """
+
+        self.app.defaults['global_alt_sel_fill'] = self.app.defaults['global_alt_sel_fill'][:7] + \
+            (hex(spinner_value)[2:] if int(hex(spinner_value)[2:], 16) > 0 else '00')
+        self.app.defaults['global_alt_sel_line'] = self.app.defaults['global_alt_sel_line'][:7] + \
+            (hex(spinner_value)[2:] if int(hex(spinner_value)[2:], 16) > 0 else '00')
+
+    # Setting Editor colors
+    def on_draw_color_entry(self):
+        self.app.defaults['global_draw_color'] = self.draw_color_entry.get_value()
+
+    def on_sel_draw_color_entry(self):
+        self.app.defaults['global_sel_draw_color'] = self.sel_draw_color_entry.get_value()
+
+    def on_proj_color_entry(self):
+        self.app.defaults['global_proj_item_color'] = self.proj_color_entry.get_value()
+
+    def on_proj_color_dis_entry(self):
+        self.app.defaults['global_proj_item_dis_color'] = self.proj_color_dis_entry.get_value()
+
+    def on_layout(self, index=None, lay=None):
+        """
+        Set the toolbars layout (location)
+
+        :param index:
+        :param lay:     Type of layout to be set on the toolbard
+        :return:        None
+        """
+
+        self.app.defaults.report_usage("on_layout()")
+        if lay:
+            current_layout = lay
+        else:
+            current_layout = self.layout_combo.get_value()
+
+        lay_settings = QSettings("Open Source", "FlatCAM")
+        lay_settings.setValue('layout', current_layout)
+
+        # This will write the setting to the platform specific storage.
+        del lay_settings
+
+        # first remove the toolbars:
+        try:
+            self.app.ui.removeToolBar(self.app.ui.toolbarfile)
+            self.app.ui.removeToolBar(self.app.ui.toolbaredit)
+            self.app.ui.removeToolBar(self.app.ui.toolbarview)
+            self.app.ui.removeToolBar(self.app.ui.toolbarshell)
+            self.app.ui.removeToolBar(self.app.ui.toolbartools)
+            self.app.ui.removeToolBar(self.app.ui.exc_edit_toolbar)
+            self.app.ui.removeToolBar(self.app.ui.geo_edit_toolbar)
+            self.app.ui.removeToolBar(self.app.ui.grb_edit_toolbar)
+            self.app.ui.removeToolBar(self.app.ui.toolbarshell)
+        except Exception:
+            pass
+
+        if current_layout == 'compact':
+            # ## TOOLBAR INSTALLATION # ##
+            self.app.ui.toolbarfile = QtWidgets.QToolBar('File Toolbar')
+            self.app.ui.toolbarfile.setObjectName('File_TB')
+            self.app.ui.addToolBar(Qt.LeftToolBarArea, self.app.ui.toolbarfile)
+
+            self.app.ui.toolbaredit = QtWidgets.QToolBar('Edit Toolbar')
+            self.app.ui.toolbaredit.setObjectName('Edit_TB')
+            self.app.ui.addToolBar(Qt.LeftToolBarArea, self.app.ui.toolbaredit)
+
+            self.app.ui.toolbarshell = QtWidgets.QToolBar('Shell Toolbar')
+            self.app.ui.toolbarshell.setObjectName('Shell_TB')
+            self.app.ui.addToolBar(Qt.LeftToolBarArea, self.app.ui.toolbarshell)
+
+            self.app.ui.toolbartools = QtWidgets.QToolBar('Tools Toolbar')
+            self.app.ui.toolbartools.setObjectName('Tools_TB')
+            self.app.ui.addToolBar(Qt.LeftToolBarArea, self.app.ui.toolbartools)
+
+            self.app.ui.geo_edit_toolbar = QtWidgets.QToolBar('Geometry Editor Toolbar')
+            # self.app.ui.geo_edit_toolbar.setVisible(False)
+            self.app.ui.geo_edit_toolbar.setObjectName('GeoEditor_TB')
+            self.app.ui.addToolBar(Qt.RightToolBarArea, self.app.ui.geo_edit_toolbar)
+
+            self.app.ui.toolbarview = QtWidgets.QToolBar('View Toolbar')
+            self.app.ui.toolbarview.setObjectName('View_TB')
+            self.app.ui.addToolBar(Qt.RightToolBarArea, self.app.ui.toolbarview)
+
+            self.app.ui.addToolBarBreak(area=Qt.RightToolBarArea)
+
+            self.app.ui.grb_edit_toolbar = QtWidgets.QToolBar('Gerber Editor Toolbar')
+            # self.app.ui.grb_edit_toolbar.setVisible(False)
+            self.app.ui.grb_edit_toolbar.setObjectName('GrbEditor_TB')
+            self.app.ui.addToolBar(Qt.RightToolBarArea, self.app.ui.grb_edit_toolbar)
+
+            self.app.ui.exc_edit_toolbar = QtWidgets.QToolBar('Excellon Editor Toolbar')
+            self.app.ui.exc_edit_toolbar.setObjectName('ExcEditor_TB')
+            self.app.ui.addToolBar(Qt.RightToolBarArea, self.app.ui.exc_edit_toolbar)
+
+        else:
+            # ## TOOLBAR INSTALLATION # ##
+            self.app.ui.toolbarfile = QtWidgets.QToolBar('File Toolbar')
+            self.app.ui.toolbarfile.setObjectName('File_TB')
+            self.app.ui.addToolBar(self.app.ui.toolbarfile)
+
+            self.app.ui.toolbaredit = QtWidgets.QToolBar('Edit Toolbar')
+            self.app.ui.toolbaredit.setObjectName('Edit_TB')
+            self.app.ui.addToolBar(self.app.ui.toolbaredit)
+
+            self.app.ui.toolbarview = QtWidgets.QToolBar('View Toolbar')
+            self.app.ui.toolbarview.setObjectName('View_TB')
+            self.app.ui.addToolBar(self.app.ui.toolbarview)
+
+            self.app.ui.toolbarshell = QtWidgets.QToolBar('Shell Toolbar')
+            self.app.ui.toolbarshell.setObjectName('Shell_TB')
+            self.app.ui.addToolBar(self.app.ui.toolbarshell)
+
+            self.app.ui.toolbartools = QtWidgets.QToolBar('Tools Toolbar')
+            self.app.ui.toolbartools.setObjectName('Tools_TB')
+            self.app.ui.addToolBar(self.app.ui.toolbartools)
+
+            self.app.ui.exc_edit_toolbar = QtWidgets.QToolBar('Excellon Editor Toolbar')
+            # self.app.ui.exc_edit_toolbar.setVisible(False)
+            self.app.ui.exc_edit_toolbar.setObjectName('ExcEditor_TB')
+            self.app.ui.addToolBar(self.app.ui.exc_edit_toolbar)
+
+            self.app.ui.addToolBarBreak()
+
+            self.app.ui.geo_edit_toolbar = QtWidgets.QToolBar('Geometry Editor Toolbar')
+            # self.app.ui.geo_edit_toolbar.setVisible(False)
+            self.app.ui.geo_edit_toolbar.setObjectName('GeoEditor_TB')
+            self.app.ui.addToolBar(self.app.ui.geo_edit_toolbar)
+
+            self.app.ui.grb_edit_toolbar = QtWidgets.QToolBar('Gerber Editor Toolbar')
+            # self.app.ui.grb_edit_toolbar.setVisible(False)
+            self.app.ui.grb_edit_toolbar.setObjectName('GrbEditor_TB')
+            self.app.ui.addToolBar(self.app.ui.grb_edit_toolbar)
+
+        if current_layout == 'minimal':
+            self.app.ui.toolbarview.setVisible(False)
+            self.app.ui.toolbarshell.setVisible(False)
+            self.app.ui.geo_edit_toolbar.setVisible(False)
+            self.app.ui.grb_edit_toolbar.setVisible(False)
+            self.app.ui.exc_edit_toolbar.setVisible(False)
+            self.app.ui.lock_toolbar(lock=True)
+
+        # add all the actions to the toolbars
+        self.app.ui.populate_toolbars()
+
+        # reconnect all the signals to the toolbar actions
+        self.app.connect_toolbar_signals()
+
+        self.app.ui.grid_snap_btn.setChecked(True)
+
+        self.app.ui.corner_snap_btn.setVisible(False)
+        self.app.ui.snap_magnet.setVisible(False)
+
+        self.app.ui.grid_gap_x_entry.setText(str(self.app.defaults["global_gridx"]))
+        self.app.ui.grid_gap_y_entry.setText(str(self.app.defaults["global_gridy"]))
+        self.app.ui.snap_max_dist_entry.setText(str(self.app.defaults["global_snap_max"]))
+        self.app.ui.grid_gap_link_cb.setChecked(True)

appGUI/preferences/general/GeneralPreferencesUI.py

@@ -0,0 +1,43 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.preferences.general.GeneralAppPrefGroupUI import GeneralAppPrefGroupUI
+from appGUI.preferences.general.GeneralAPPSetGroupUI import GeneralAPPSetGroupUI
+from appGUI.preferences.general.GeneralGUIPrefGroupUI import GeneralGUIPrefGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class GeneralPreferencesUI(QtWidgets.QWidget):
+    def __init__(self, decimals, parent=None):
+        QtWidgets.QWidget.__init__(self, parent=parent)
+        self.layout = QtWidgets.QHBoxLayout()
+        self.setLayout(self.layout)
+        self.decimals = decimals
+
+        self.general_app_group = GeneralAppPrefGroupUI(decimals=self.decimals)
+        self.general_app_group.setMinimumWidth(250)
+
+        self.general_gui_group = GeneralGUIPrefGroupUI(decimals=self.decimals)
+        self.general_gui_group.setMinimumWidth(250)
+
+        self.general_app_set_group = GeneralAPPSetGroupUI(decimals=self.decimals)
+        self.general_app_set_group.setMinimumWidth(250)
+
+        self.layout.addWidget(self.general_app_group)
+        self.layout.addWidget(self.general_gui_group)
+        self.layout.addWidget(self.general_app_set_group)
+
+        self.layout.addStretch()

appGUI/preferences/geometry/GeometryAdvOptPrefGroupUI.py

@@ -0,0 +1,254 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import FCDoubleSpinner, FCCheckBox, RadioSet, FCLabel, NumericalEvalTupleEntry, \
+    NumericalEvalEntry
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class GeometryAdvOptPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+        # OptionsGroupUI.__init__(self, "Geometry Advanced Options Preferences", parent=parent)
+        super(GeometryAdvOptPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("Geometry Adv. Options")))
+        self.decimals = decimals
+
+        # ------------------------------
+        # ## Advanced Options
+        # ------------------------------
+        self.geo_label = QtWidgets.QLabel('<b>%s:</b>' % _('Advanced Options'))
+        self.geo_label.setToolTip(
+            _("A list of Geometry advanced parameters.\n"
+              "Those parameters are available only for\n"
+              "Advanced App. Level.")
+        )
+        self.layout.addWidget(self.geo_label)
+
+        grid1 = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid1)
+
+        # Toolchange X,Y
+        toolchange_xy_label = QtWidgets.QLabel('%s:' % _('Toolchange X-Y'))
+        toolchange_xy_label.setToolTip(
+            _("Toolchange X,Y position.")
+        )
+        self.toolchangexy_entry = NumericalEvalTupleEntry(border_color='#0069A9')
+
+        grid1.addWidget(toolchange_xy_label, 1, 0)
+        grid1.addWidget(self.toolchangexy_entry, 1, 1)
+
+        # Start move Z
+        startzlabel = QtWidgets.QLabel('%s:' % _('Start Z'))
+        startzlabel.setToolTip(
+            _("Height of the tool just after starting the work.\n"
+              "Delete the value if you don't need this feature.")
+        )
+        self.gstartz_entry = NumericalEvalEntry(border_color='#0069A9')
+
+        grid1.addWidget(startzlabel, 2, 0)
+        grid1.addWidget(self.gstartz_entry, 2, 1)
+
+        # Feedrate rapids
+        fr_rapid_label = QtWidgets.QLabel('%s:' % _('Feedrate Rapids'))
+        fr_rapid_label.setToolTip(
+            _("Cutting speed in the XY plane\n"
+              "(in units per minute).\n"
+              "This is for the rapid move G00.\n"
+              "It is useful only for Marlin,\n"
+              "ignore for any other cases.")
+        )
+        self.feedrate_rapid_entry = FCDoubleSpinner()
+        self.feedrate_rapid_entry.set_range(0, 99999.9999)
+        self.feedrate_rapid_entry.set_precision(self.decimals)
+        self.feedrate_rapid_entry.setSingleStep(0.1)
+        self.feedrate_rapid_entry.setWrapping(True)
+
+        grid1.addWidget(fr_rapid_label, 4, 0)
+        grid1.addWidget(self.feedrate_rapid_entry, 4, 1)
+
+        # End move extra cut
+        self.extracut_cb = FCCheckBox('%s' % _('Re-cut'))
+        self.extracut_cb.setToolTip(
+            _("In order to remove possible\n"
+              "copper leftovers where first cut\n"
+              "meet with last cut, we generate an\n"
+              "extended cut over the first cut section.")
+        )
+
+        self.e_cut_entry = FCDoubleSpinner()
+        self.e_cut_entry.set_range(0, 99999)
+        self.e_cut_entry.set_precision(self.decimals)
+        self.e_cut_entry.setSingleStep(0.1)
+        self.e_cut_entry.setWrapping(True)
+        self.e_cut_entry.setToolTip(
+            _("In order to remove possible\n"
+              "copper leftovers where first cut\n"
+              "meet with last cut, we generate an\n"
+              "extended cut over the first cut section.")
+        )
+        grid1.addWidget(self.extracut_cb, 5, 0)
+        grid1.addWidget(self.e_cut_entry, 5, 1)
+
+        # Probe depth
+        self.pdepth_label = QtWidgets.QLabel('%s:' % _("Probe Z depth"))
+        self.pdepth_label.setToolTip(
+            _("The maximum depth that the probe is allowed\n"
+              "to probe. Negative value, in current units.")
+        )
+        self.pdepth_entry = FCDoubleSpinner()
+        self.pdepth_entry.set_range(-99999, 0.0000)
+        self.pdepth_entry.set_precision(self.decimals)
+        self.pdepth_entry.setSingleStep(0.1)
+        self.pdepth_entry.setWrapping(True)
+
+        grid1.addWidget(self.pdepth_label, 6, 0)
+        grid1.addWidget(self.pdepth_entry, 6, 1)
+
+        # Probe feedrate
+        self.feedrate_probe_label = QtWidgets.QLabel('%s:' % _("Feedrate Probe"))
+        self.feedrate_probe_label.setToolTip(
+            _("The feedrate used while the probe is probing.")
+        )
+        self.feedrate_probe_entry = FCDoubleSpinner()
+        self.feedrate_probe_entry.set_range(0, 99999.9999)
+        self.feedrate_probe_entry.set_precision(self.decimals)
+        self.feedrate_probe_entry.setSingleStep(0.1)
+        self.feedrate_probe_entry.setWrapping(True)
+
+        grid1.addWidget(self.feedrate_probe_label, 7, 0)
+        grid1.addWidget(self.feedrate_probe_entry, 7, 1)
+
+        # Spindle direction
+        spindle_dir_label = QtWidgets.QLabel('%s:' % _('Spindle direction'))
+        spindle_dir_label.setToolTip(
+            _("This sets the direction that the spindle is rotating.\n"
+              "It can be either:\n"
+              "- CW = clockwise or\n"
+              "- CCW = counter clockwise")
+        )
+
+        self.spindledir_radio = RadioSet([{'label': _('CW'), 'value': 'CW'},
+                                          {'label': _('CCW'), 'value': 'CCW'}])
+        grid1.addWidget(spindle_dir_label, 8, 0)
+        grid1.addWidget(self.spindledir_radio, 8, 1)
+
+        # Fast Move from Z Toolchange
+        self.fplunge_cb = FCCheckBox('%s' % _('Fast Plunge'))
+        self.fplunge_cb.setToolTip(
+            _("By checking this, the vertical move from\n"
+              "Z_Toolchange to Z_move is done with G0,\n"
+              "meaning the fastest speed available.\n"
+              "WARNING: the move is done at Toolchange X,Y coords.")
+        )
+        grid1.addWidget(self.fplunge_cb, 9, 0, 1, 2)
+
+        # Size of trace segment on X axis
+        segx_label = QtWidgets.QLabel('%s:' % _("Segment X size"))
+        segx_label.setToolTip(
+            _("The size of the trace segment on the X axis.\n"
+              "Useful for auto-leveling.\n"
+              "A value of 0 means no segmentation on the X axis.")
+        )
+        self.segx_entry = FCDoubleSpinner()
+        self.segx_entry.set_range(0, 99999)
+        self.segx_entry.set_precision(self.decimals)
+        self.segx_entry.setSingleStep(0.1)
+        self.segx_entry.setWrapping(True)
+
+        grid1.addWidget(segx_label, 10, 0)
+        grid1.addWidget(self.segx_entry, 10, 1)
+
+        # Size of trace segment on Y axis
+        segy_label = QtWidgets.QLabel('%s:' % _("Segment Y size"))
+        segy_label.setToolTip(
+            _("The size of the trace segment on the Y axis.\n"
+              "Useful for auto-leveling.\n"
+              "A value of 0 means no segmentation on the Y axis.")
+        )
+        self.segy_entry = FCDoubleSpinner()
+        self.segy_entry.set_range(0, 99999)
+        self.segy_entry.set_precision(self.decimals)
+        self.segy_entry.setSingleStep(0.1)
+        self.segy_entry.setWrapping(True)
+
+        grid1.addWidget(segy_label, 11, 0)
+        grid1.addWidget(self.segy_entry, 11, 1)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid1.addWidget(separator_line, 12, 0, 1, 2)
+
+        # -----------------------------
+        # --- Area Exclusion ----------
+        # -----------------------------
+        self.adv_label = QtWidgets.QLabel('<b>%s:</b>' % _('Area Exclusion'))
+        self.adv_label.setToolTip(
+            _("Area exclusion parameters.\n"
+              "Those parameters are available only for\n"
+              "Advanced App. Level.")
+        )
+        grid1.addWidget(self.adv_label, 13, 0, 1, 2)
+
+        # Exclusion Area CB
+        self.exclusion_cb = FCCheckBox('%s' % _("Exclusion areas"))
+        self.exclusion_cb.setToolTip(
+            _(
+                "Include exclusion areas.\n"
+                "In those areas the travel of the tools\n"
+                "is forbidden."
+            )
+        )
+        grid1.addWidget(self.exclusion_cb, 14, 0, 1, 2)
+
+        # Area Selection shape
+        self.area_shape_label = QtWidgets.QLabel('%s:' % _("Shape"))
+        self.area_shape_label.setToolTip(
+            _("The kind of selection shape used for area selection.")
+        )
+
+        self.area_shape_radio = RadioSet([{'label': _("Square"), 'value': 'square'},
+                                          {'label': _("Polygon"), 'value': 'polygon'}])
+
+        grid1.addWidget(self.area_shape_label, 15, 0)
+        grid1.addWidget(self.area_shape_radio, 15, 1)
+
+        # Chose Strategy
+        self.strategy_label = FCLabel('%s:' % _("Strategy"))
+        self.strategy_label.setToolTip(_("The strategy followed when encountering an exclusion area.\n"
+                                         "Can be:\n"
+                                         "- Over -> when encountering the area, the tool will go to a set height\n"
+                                         "- Around -> will avoid the exclusion area by going around the area"))
+        self.strategy_radio = RadioSet([{'label': _('Over'), 'value': 'over'},
+                                        {'label': _('Around'), 'value': 'around'}])
+
+        grid1.addWidget(self.strategy_label, 16, 0)
+        grid1.addWidget(self.strategy_radio, 16, 1)
+
+        # Over Z
+        self.over_z_label = FCLabel('%s:' % _("Over Z"))
+        self.over_z_label.setToolTip(_("The height Z to which the tool will rise in order to avoid\n"
+                                       "an interdiction area."))
+        self.over_z_entry = FCDoubleSpinner()
+        self.over_z_entry.set_range(0.000, 9999.9999)
+        self.over_z_entry.set_precision(self.decimals)
+
+        grid1.addWidget(self.over_z_label, 18, 0)
+        grid1.addWidget(self.over_z_entry, 18, 1)
+
+        self.layout.addStretch()

appGUI/preferences/geometry/GeometryEditorPrefGroupUI.py

@@ -0,0 +1,67 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import FCSpinner, RadioSet
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class GeometryEditorPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+        # OptionsGroupUI.__init__(self, "Gerber Adv. Options Preferences", parent=parent)
+        super(GeometryEditorPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("Geometry Editor")))
+        self.decimals = decimals
+
+        # Advanced Geometry Parameters
+        self.param_label = QtWidgets.QLabel("<b>%s:</b>" % _("Parameters"))
+        self.param_label.setToolTip(
+            _("A list of Geometry Editor parameters.")
+        )
+        self.layout.addWidget(self.param_label)
+
+        grid0 = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid0)
+
+        # Selection Limit
+        self.sel_limit_label = QtWidgets.QLabel('%s:' % _("Selection limit"))
+        self.sel_limit_label.setToolTip(
+            _("Set the number of selected geometry\n"
+              "items above which the utility geometry\n"
+              "becomes just a selection rectangle.\n"
+              "Increases the performance when moving a\n"
+              "large number of geometric elements.")
+        )
+        self.sel_limit_entry = FCSpinner()
+        self.sel_limit_entry.set_range(0, 9999)
+
+        grid0.addWidget(self.sel_limit_label, 0, 0)
+        grid0.addWidget(self.sel_limit_entry, 0, 1)
+
+        # Milling Type
+        milling_type_label = QtWidgets.QLabel('%s:' % _('Milling Type'))
+        milling_type_label.setToolTip(
+            _("Milling type:\n"
+              "- climb / best for precision milling and to reduce tool usage\n"
+              "- conventional / useful when there is no backlash compensation")
+        )
+        self.milling_type_radio = RadioSet([{'label': _('Climb'), 'value': 'cl'},
+                                            {'label': _('Conventional'), 'value': 'cv'}])
+        grid0.addWidget(milling_type_label, 1, 0)
+        grid0.addWidget(self.milling_type_radio, 1, 1)
+
+        self.layout.addStretch()

appGUI/preferences/geometry/GeometryGenPrefGroupUI.py

@@ -0,0 +1,109 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import FCCheckBox, FCSpinner, FCEntry, FCColorEntry
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class GeometryGenPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+        # OptionsGroupUI.__init__(self, "Geometry General Preferences", parent=parent)
+        super(GeometryGenPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("Geometry General")))
+        self.decimals = decimals
+
+        # ## Plot options
+        self.plot_options_label = QtWidgets.QLabel("<b>%s:</b>" % _("Plot Options"))
+        self.layout.addWidget(self.plot_options_label)
+
+        plot_hlay = QtWidgets.QHBoxLayout()
+        self.layout.addLayout(plot_hlay)
+
+        # Plot CB
+        self.plot_cb = FCCheckBox(label=_('Plot'))
+        self.plot_cb.setToolTip(
+            _("Plot (show) this object.")
+        )
+        plot_hlay.addWidget(self.plot_cb)
+
+        # Multicolored CB
+        self.multicolored_cb = FCCheckBox(label=_('M-Color'))
+        self.multicolored_cb.setToolTip(
+            _("Draw polygons in different colors.")
+        )
+        plot_hlay.addWidget(self.multicolored_cb)
+
+        grid0 = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid0)
+        grid0.setColumnStretch(0, 0)
+        grid0.setColumnStretch(1, 1)
+
+        # Number of circle steps for circular aperture linear approximation
+        self.circle_steps_label = QtWidgets.QLabel('%s:' % _("Circle Steps"))
+        self.circle_steps_label.setToolTip(
+            _("The number of circle steps for <b>Geometry</b> \n"
+              "circle and arc shapes linear approximation.")
+        )
+        self.circle_steps_entry = FCSpinner()
+        self.circle_steps_entry.set_range(0, 999)
+
+        grid0.addWidget(self.circle_steps_label, 1, 0)
+        grid0.addWidget(self.circle_steps_entry, 1, 1)
+
+        # Tools
+        self.tools_label = QtWidgets.QLabel("<b>%s:</b>" % _("Tools"))
+        grid0.addWidget(self.tools_label, 2, 0, 1, 2)
+
+        # Tooldia
+        tdlabel = QtWidgets.QLabel('<b><font color="green">%s:</font></b>' % _('Tools Dia'))
+        tdlabel.setToolTip(
+            _("Diameters of the tools, separated by comma.\n"
+              "The value of the diameter has to use the dot decimals separator.\n"
+              "Valid values: 0.3, 1.0")
+        )
+        self.cnctooldia_entry = FCEntry()
+
+        grid0.addWidget(tdlabel, 3, 0)
+        grid0.addWidget(self.cnctooldia_entry, 3, 1)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line, 9, 0, 1, 2)
+
+        # Geometry Object Color
+        self.gerber_color_label = QtWidgets.QLabel('<b>%s</b>' % _('Object Color'))
+        grid0.addWidget(self.gerber_color_label, 10, 0, 1, 2)
+
+        # Plot Line Color
+        self.line_color_label = QtWidgets.QLabel('%s:' % _('Outline'))
+        self.line_color_label.setToolTip(
+            _("Set the line color for plotted objects.")
+        )
+        self.line_color_entry = FCColorEntry()
+
+        grid0.addWidget(self.line_color_label, 11, 0)
+        grid0.addWidget(self.line_color_entry, 11, 1)
+
+        self.layout.addStretch()
+
+        # Setting plot colors signals
+        self.line_color_entry.editingFinished.connect(self.on_line_color_entry)
+
+    def on_line_color_entry(self):
+        self.app.defaults['geometry_plot_line'] = self.line_color_entry.get_value()[:7] + 'FF'

appGUI/preferences/geometry/GeometryOptPrefGroupUI.py

@@ -0,0 +1,266 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import Qt, QSettings
+
+from appGUI.GUIElements import FCDoubleSpinner, FCCheckBox, OptionalInputSection, FCSpinner, FCComboBox, \
+    NumericalEvalTupleEntry
+from appGUI.preferences import machinist_setting
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class GeometryOptPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+        # OptionsGroupUI.__init__(self, "Geometry Options Preferences", parent=parent)
+        super(GeometryOptPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("Geometry Options")))
+        self.decimals = decimals
+
+        # ------------------------------
+        # ## Create CNC Job
+        # ------------------------------
+        self.cncjob_label = QtWidgets.QLabel('<b>%s:</b>' % _('Create CNC Job'))
+        self.cncjob_label.setToolTip(
+            _("Create a CNC Job object\n"
+              "tracing the contours of this\n"
+              "Geometry object.")
+        )
+        self.layout.addWidget(self.cncjob_label)
+
+        grid1 = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid1)
+        grid1.setColumnStretch(0, 0)
+        grid1.setColumnStretch(1, 1)
+
+        # Cut Z
+        cutzlabel = QtWidgets.QLabel('%s:' % _('Cut Z'))
+        cutzlabel.setToolTip(
+            _("Cutting depth (negative)\n"
+              "below the copper surface.")
+        )
+        self.cutz_entry = FCDoubleSpinner()
+
+        if machinist_setting == 0:
+            self.cutz_entry.set_range(-9999.9999, 0.0000)
+        else:
+            self.cutz_entry.set_range(-9999.9999, 9999.9999)
+
+        self.cutz_entry.set_precision(self.decimals)
+        self.cutz_entry.setSingleStep(0.1)
+        self.cutz_entry.setWrapping(True)
+
+        grid1.addWidget(cutzlabel, 0, 0)
+        grid1.addWidget(self.cutz_entry, 0, 1)
+
+        # Multidepth CheckBox
+        self.multidepth_cb = FCCheckBox(label=_('Multi-Depth'))
+        self.multidepth_cb.setToolTip(
+            _(
+                "Use multiple passes to limit\n"
+                "the cut depth in each pass. Will\n"
+                "cut multiple times until Cut Z is\n"
+                "reached."
+            )
+        )
+        grid1.addWidget(self.multidepth_cb, 1, 0)
+
+        # Depth/pass
+        dplabel = QtWidgets.QLabel('%s:' % _('Depth/Pass'))
+        dplabel.setToolTip(
+            _("The depth to cut on each pass,\n"
+              "when multidepth is enabled.\n"
+              "It has positive value although\n"
+              "it is a fraction from the depth\n"
+              "which has negative value.")
+        )
+
+        self.depthperpass_entry = FCDoubleSpinner()
+        self.depthperpass_entry.set_range(0, 99999)
+        self.depthperpass_entry.set_precision(self.decimals)
+        self.depthperpass_entry.setSingleStep(0.1)
+        self.depthperpass_entry.setWrapping(True)
+
+        grid1.addWidget(dplabel, 2, 0)
+        grid1.addWidget(self.depthperpass_entry, 2, 1)
+
+        self.ois_multidepth = OptionalInputSection(self.multidepth_cb, [self.depthperpass_entry])
+
+        # Travel Z
+        travelzlabel = QtWidgets.QLabel('%s:' % _('Travel Z'))
+        travelzlabel.setToolTip(
+            _("Height of the tool when\n"
+              "moving without cutting.")
+        )
+        self.travelz_entry = FCDoubleSpinner()
+
+        if machinist_setting == 0:
+            self.travelz_entry.set_range(0.0001, 9999.9999)
+        else:
+            self.travelz_entry.set_range(-9999.9999, 9999.9999)
+
+        self.travelz_entry.set_precision(self.decimals)
+        self.travelz_entry.setSingleStep(0.1)
+        self.travelz_entry.setWrapping(True)
+
+        grid1.addWidget(travelzlabel, 3, 0)
+        grid1.addWidget(self.travelz_entry, 3, 1)
+
+        # Tool change:
+        self.toolchange_cb = FCCheckBox('%s' % _("Tool change"))
+        self.toolchange_cb.setToolTip(
+            _(
+                "Include tool-change sequence\n"
+                "in the Machine Code (Pause for tool change)."
+            )
+        )
+        grid1.addWidget(self.toolchange_cb, 4, 0, 1, 2)
+
+        # Toolchange Z
+        toolchangezlabel = QtWidgets.QLabel('%s:' % _('Toolchange Z'))
+        toolchangezlabel.setToolTip(
+            _(
+                "Z-axis position (height) for\n"
+                "tool change."
+            )
+        )
+        self.toolchangez_entry = FCDoubleSpinner()
+
+        if machinist_setting == 0:
+            self.toolchangez_entry.set_range(0.000, 9999.9999)
+        else:
+            self.toolchangez_entry.set_range(-9999.9999, 9999.9999)
+
+        self.toolchangez_entry.set_precision(self.decimals)
+        self.toolchangez_entry.setSingleStep(0.1)
+        self.toolchangez_entry.setWrapping(True)
+
+        grid1.addWidget(toolchangezlabel, 5, 0)
+        grid1.addWidget(self.toolchangez_entry, 5, 1)
+
+        # End move Z
+        endz_label = QtWidgets.QLabel('%s:' % _('End move Z'))
+        endz_label.setToolTip(
+            _("Height of the tool after\n"
+              "the last move at the end of the job.")
+        )
+        self.endz_entry = FCDoubleSpinner()
+
+        if machinist_setting == 0:
+            self.endz_entry.set_range(0.000, 9999.9999)
+        else:
+            self.endz_entry.set_range(-9999.9999, 9999.9999)
+
+        self.endz_entry.set_precision(self.decimals)
+        self.endz_entry.setSingleStep(0.1)
+        self.endz_entry.setWrapping(True)
+
+        grid1.addWidget(endz_label, 6, 0)
+        grid1.addWidget(self.endz_entry, 6, 1)
+
+        # End Move X,Y
+        endmove_xy_label = QtWidgets.QLabel('%s:' % _('End move X,Y'))
+        endmove_xy_label.setToolTip(
+            _("End move X,Y position. In format (x,y).\n"
+              "If no value is entered then there is no move\n"
+              "on X,Y plane at the end of the job.")
+        )
+        self.endxy_entry = NumericalEvalTupleEntry(border_color='#0069A9')
+
+        grid1.addWidget(endmove_xy_label, 7, 0)
+        grid1.addWidget(self.endxy_entry, 7, 1)
+
+        # Feedrate X-Y
+        frlabel = QtWidgets.QLabel('%s:' % _('Feedrate X-Y'))
+        frlabel.setToolTip(
+            _("Cutting speed in the XY\n"
+              "plane in units per minute")
+        )
+        self.cncfeedrate_entry = FCDoubleSpinner()
+        self.cncfeedrate_entry.set_range(0, 99999.9999)
+        self.cncfeedrate_entry.set_precision(self.decimals)
+        self.cncfeedrate_entry.setSingleStep(0.1)
+        self.cncfeedrate_entry.setWrapping(True)
+
+        grid1.addWidget(frlabel, 8, 0)
+        grid1.addWidget(self.cncfeedrate_entry, 8, 1)
+
+        # Feedrate Z (Plunge)
+        frz_label = QtWidgets.QLabel('%s:' % _('Feedrate Z'))
+        frz_label.setToolTip(
+            _("Cutting speed in the XY\n"
+              "plane in units per minute.\n"
+              "It is called also Plunge.")
+        )
+        self.feedrate_z_entry = FCDoubleSpinner()
+        self.feedrate_z_entry.set_range(0, 99999.9999)
+        self.feedrate_z_entry.set_precision(self.decimals)
+        self.feedrate_z_entry.setSingleStep(0.1)
+        self.feedrate_z_entry.setWrapping(True)
+
+        grid1.addWidget(frz_label, 9, 0)
+        grid1.addWidget(self.feedrate_z_entry, 9, 1)
+
+        # Spindle Speed
+        spdlabel = QtWidgets.QLabel('%s:' % _('Spindle speed'))
+        spdlabel.setToolTip(
+            _(
+                "Speed of the spindle in RPM (optional).\n"
+                "If LASER preprocessor is used,\n"
+                "this value is the power of laser."
+            )
+        )
+        self.cncspindlespeed_entry = FCSpinner()
+        self.cncspindlespeed_entry.set_range(0, 1000000)
+        self.cncspindlespeed_entry.set_step(100)
+
+        grid1.addWidget(spdlabel, 10, 0)
+        grid1.addWidget(self.cncspindlespeed_entry, 10, 1)
+
+        # Dwell
+        self.dwell_cb = FCCheckBox(label='%s' % _('Enable Dwell'))
+        self.dwell_cb.setToolTip(
+            _("Pause to allow the spindle to reach its\n"
+              "speed before cutting.")
+        )
+        dwelltime = QtWidgets.QLabel('%s:' % _('Duration'))
+        dwelltime.setToolTip(
+            _("Number of time units for spindle to dwell.")
+        )
+        self.dwelltime_entry = FCDoubleSpinner()
+        self.dwelltime_entry.set_range(0, 99999)
+        self.dwelltime_entry.set_precision(self.decimals)
+        self.dwelltime_entry.setSingleStep(0.1)
+        self.dwelltime_entry.setWrapping(True)
+
+        grid1.addWidget(self.dwell_cb, 11, 0)
+        grid1.addWidget(dwelltime, 12, 0)
+        grid1.addWidget(self.dwelltime_entry, 12, 1)
+
+        self.ois_dwell = OptionalInputSection(self.dwell_cb, [self.dwelltime_entry])
+
+        # preprocessor selection
+        pp_label = QtWidgets.QLabel('%s:' % _("Preprocessor"))
+        pp_label.setToolTip(
+            _("The Preprocessor file that dictates\n"
+              "the Machine Code (like GCode, RML, HPGL) output.")
+        )
+        self.pp_geometry_name_cb = FCComboBox()
+        self.pp_geometry_name_cb.setFocusPolicy(Qt.StrongFocus)
+
+        grid1.addWidget(pp_label, 13, 0)
+        grid1.addWidget(self.pp_geometry_name_cb, 13, 1)
+
+        self.layout.addStretch()

appGUI/preferences/geometry/GeometryPreferencesUI.py

@@ -0,0 +1,46 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.preferences.geometry.GeometryEditorPrefGroupUI import GeometryEditorPrefGroupUI
+from appGUI.preferences.geometry.GeometryAdvOptPrefGroupUI import GeometryAdvOptPrefGroupUI
+from appGUI.preferences.geometry.GeometryOptPrefGroupUI import GeometryOptPrefGroupUI
+from appGUI.preferences.geometry.GeometryGenPrefGroupUI import GeometryGenPrefGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class GeometryPreferencesUI(QtWidgets.QWidget):
+
+    def __init__(self, decimals, parent=None):
+        QtWidgets.QWidget.__init__(self, parent=parent)
+        self.layout = QtWidgets.QHBoxLayout()
+        self.setLayout(self.layout)
+        self.decimals = decimals
+
+        self.geometry_gen_group = GeometryGenPrefGroupUI(decimals=self.decimals)
+        self.geometry_gen_group.setMinimumWidth(220)
+        self.geometry_opt_group = GeometryOptPrefGroupUI(decimals=self.decimals)
+        self.geometry_opt_group.setMinimumWidth(300)
+        self.geometry_adv_opt_group = GeometryAdvOptPrefGroupUI(decimals=self.decimals)
+        self.geometry_adv_opt_group.setMinimumWidth(270)
+        self.geometry_editor_group = GeometryEditorPrefGroupUI(decimals=self.decimals)
+        self.geometry_editor_group.setMinimumWidth(250)
+
+        self.layout.addWidget(self.geometry_gen_group)
+        self.layout.addWidget(self.geometry_opt_group)
+        self.layout.addWidget(self.geometry_adv_opt_group)
+        self.layout.addWidget(self.geometry_editor_group)
+
+        self.layout.addStretch()

appGUI/preferences/gerber/GerberAdvOptPrefGroupUI.py

@@ -0,0 +1,123 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import FCCheckBox, RadioSet, FCDoubleSpinner, FCSpinner, OptionalInputSection
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class GerberAdvOptPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+        # OptionsGroupUI.__init__(self, "Gerber Adv. Options Preferences", parent=parent)
+        super(GerberAdvOptPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("Gerber Adv. Options")))
+        self.decimals = decimals
+
+        # ## Advanced Gerber Parameters
+        self.adv_param_label = QtWidgets.QLabel('<b>%s:</b>' % _('Advanced Options'))
+        self.adv_param_label.setToolTip(
+            _("A list of Gerber advanced parameters.\n"
+              "Those parameters are available only for\n"
+              "Advanced App. Level.")
+        )
+        self.layout.addWidget(self.adv_param_label)
+
+        grid0 = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid0)
+
+        # Follow Attribute
+        self.follow_cb = FCCheckBox(label=_('"Follow"'))
+        self.follow_cb.setToolTip(
+            _("Generate a 'Follow' geometry.\n"
+              "This means that it will cut through\n"
+              "the middle of the trace.")
+        )
+        grid0.addWidget(self.follow_cb, 0, 0, 1, 2)
+
+        # Aperture Table Visibility CB
+        self.aperture_table_visibility_cb = FCCheckBox(label=_('Table Show/Hide'))
+        self.aperture_table_visibility_cb.setToolTip(
+            _("Toggle the display of the Gerber Apertures Table.\n"
+              "Also, on hide, it will delete all mark shapes\n"
+              "that are drawn on canvas.")
+
+        )
+        grid0.addWidget(self.aperture_table_visibility_cb, 1, 0, 1, 2)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line, 2, 0, 1, 2)
+
+        # Buffering Type
+        buffering_label = QtWidgets.QLabel('%s:' % _('Buffering'))
+        buffering_label.setToolTip(
+            _("Buffering type:\n"
+              "- None --> best performance, fast file loading but no so good display\n"
+              "- Full --> slow file loading but good visuals. This is the default.\n"
+              "<<WARNING>>: Don't change this unless you know what you are doing !!!")
+        )
+        self.buffering_radio = RadioSet([{'label': _('None'), 'value': 'no'},
+                                         {'label': _('Full'), 'value': 'full'}])
+        grid0.addWidget(buffering_label, 9, 0)
+        grid0.addWidget(self.buffering_radio, 9, 1)
+
+        # Delayed Buffering
+        self.delayed_buffer_cb = FCCheckBox(label=_('Delayed Buffering'))
+        self.delayed_buffer_cb.setToolTip(
+            _("When checked it will do the buffering in background.")
+        )
+        grid0.addWidget(self.delayed_buffer_cb, 10, 0, 1, 2)
+
+        # Simplification
+        self.simplify_cb = FCCheckBox(label=_('Simplify'))
+        self.simplify_cb.setToolTip(
+            _("When checked all the Gerber polygons will be\n"
+              "loaded with simplification having a set tolerance.\n"
+              "<<WARNING>>: Don't change this unless you know what you are doing !!!")
+                                    )
+        grid0.addWidget(self.simplify_cb, 11, 0, 1, 2)
+
+        # Simplification tolerance
+        self.simplification_tol_label = QtWidgets.QLabel(_('Tolerance'))
+        self.simplification_tol_label.setToolTip(_("Tolerance for polygon simplification."))
+
+        self.simplification_tol_spinner = FCDoubleSpinner()
+        self.simplification_tol_spinner.set_precision(self.decimals + 1)
+        self.simplification_tol_spinner.setWrapping(True)
+        self.simplification_tol_spinner.setRange(0.00000, 0.01000)
+        self.simplification_tol_spinner.setSingleStep(0.0001)
+
+        grid0.addWidget(self.simplification_tol_label, 12, 0)
+        grid0.addWidget(self.simplification_tol_spinner, 12, 1)
+        self.ois_simplif = OptionalInputSection(
+            self.simplify_cb,
+            [
+                self.simplification_tol_label, self.simplification_tol_spinner
+            ],
+            logic=True)
+
+        self.layout.addStretch()
+
+        # signals
+        self.buffering_radio.activated_custom.connect(self.on_buffering_change)
+
+    def on_buffering_change(self, val):
+        if val == 'no':
+            self.delayed_buffer_cb.setDisabled(False)
+        else:
+            self.delayed_buffer_cb.setDisabled(True)

appGUI/preferences/gerber/GerberEditorPrefGroupUI.py

@@ -0,0 +1,248 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import FCSpinner, FCDoubleSpinner, FCComboBox, FCEntry, RadioSet, NumericalEvalTupleEntry
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class GerberEditorPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+        # OptionsGroupUI.__init__(self, "Gerber Adv. Options Preferences", parent=parent)
+        super(GerberEditorPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("Gerber Editor")))
+        self.decimals = decimals
+
+        # Advanced Gerber Parameters
+        self.param_label = QtWidgets.QLabel("<b>%s:</b>" % _("Parameters"))
+        self.param_label.setToolTip(
+            _("A list of Gerber Editor parameters.")
+        )
+        self.layout.addWidget(self.param_label)
+
+        grid0 = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid0)
+
+        # Selection Limit
+        self.sel_limit_label = QtWidgets.QLabel('%s:' % _("Selection limit"))
+        self.sel_limit_label.setToolTip(
+            _("Set the number of selected Gerber geometry\n"
+              "items above which the utility geometry\n"
+              "becomes just a selection rectangle.\n"
+              "Increases the performance when moving a\n"
+              "large number of geometric elements.")
+        )
+        self.sel_limit_entry = FCSpinner()
+        self.sel_limit_entry.set_range(0, 9999)
+
+        grid0.addWidget(self.sel_limit_label, 0, 0)
+        grid0.addWidget(self.sel_limit_entry, 0, 1)
+
+        # New aperture code
+        self.addcode_entry_lbl = QtWidgets.QLabel('%s:' % _('New Aperture code'))
+        self.addcode_entry_lbl.setToolTip(
+            _("Code for the new aperture")
+        )
+
+        self.addcode_entry = FCSpinner()
+        self.addcode_entry.set_range(10, 99)
+        self.addcode_entry.setWrapping(True)
+
+        grid0.addWidget(self.addcode_entry_lbl, 1, 0)
+        grid0.addWidget(self.addcode_entry, 1, 1)
+
+        # New aperture size
+        self.addsize_entry_lbl = QtWidgets.QLabel('%s:' % _('New Aperture size'))
+        self.addsize_entry_lbl.setToolTip(
+            _("Size for the new aperture")
+        )
+
+        self.addsize_entry = FCDoubleSpinner()
+        self.addsize_entry.set_range(0, 100)
+        self.addsize_entry.set_precision(self.decimals)
+
+        grid0.addWidget(self.addsize_entry_lbl, 2, 0)
+        grid0.addWidget(self.addsize_entry, 2, 1)
+
+        # New aperture type
+        self.addtype_combo_lbl = QtWidgets.QLabel('%s:' % _('New Aperture type'))
+        self.addtype_combo_lbl.setToolTip(
+            _("Type for the new aperture.\n"
+              "Can be 'C', 'R' or 'O'.")
+        )
+
+        self.addtype_combo = FCComboBox()
+        self.addtype_combo.addItems(['C', 'R', 'O'])
+
+        grid0.addWidget(self.addtype_combo_lbl, 3, 0)
+        grid0.addWidget(self.addtype_combo, 3, 1)
+
+        # Number of pads in a pad array
+        self.grb_array_size_label = QtWidgets.QLabel('%s:' % _('Nr of pads'))
+        self.grb_array_size_label.setToolTip(
+            _("Specify how many pads to be in the array.")
+        )
+
+        self.grb_array_size_entry = FCSpinner()
+        self.grb_array_size_entry.set_range(0, 9999)
+
+        grid0.addWidget(self.grb_array_size_label, 4, 0)
+        grid0.addWidget(self.grb_array_size_entry, 4, 1)
+
+        self.adddim_label = QtWidgets.QLabel('%s:' % _('Aperture Dimensions'))
+        self.adddim_label.setToolTip(
+            _("Diameters of the tools, separated by comma.\n"
+              "The value of the diameter has to use the dot decimals separator.\n"
+              "Valid values: 0.3, 1.0")
+        )
+        self.adddim_entry = NumericalEvalTupleEntry(border_color='#0069A9')
+
+        grid0.addWidget(self.adddim_label, 5, 0)
+        grid0.addWidget(self.adddim_entry, 5, 1)
+
+        self.grb_array_linear_label = QtWidgets.QLabel('<b>%s:</b>' % _('Linear Pad Array'))
+        grid0.addWidget(self.grb_array_linear_label, 6, 0, 1, 2)
+
+        # Linear Pad Array direction
+        self.grb_axis_label = QtWidgets.QLabel('%s:' % _('Linear Direction'))
+        self.grb_axis_label.setToolTip(
+            _("Direction on which the linear array is oriented:\n"
+              "- 'X' - horizontal axis \n"
+              "- 'Y' - vertical axis or \n"
+              "- 'Angle' - a custom angle for the array inclination")
+        )
+
+        self.grb_axis_radio = RadioSet([{'label': _('X'), 'value': 'X'},
+                                        {'label': _('Y'), 'value': 'Y'},
+                                        {'label': _('Angle'), 'value': 'A'}])
+
+        grid0.addWidget(self.grb_axis_label, 7, 0)
+        grid0.addWidget(self.grb_axis_radio, 7, 1)
+
+        # Linear Pad Array pitch distance
+        self.grb_pitch_label = QtWidgets.QLabel('%s:' % _('Pitch'))
+        self.grb_pitch_label.setToolTip(
+            _("Pitch = Distance between elements of the array.")
+        )
+        # self.drill_pitch_label.setMinimumWidth(100)
+        self.grb_pitch_entry = FCDoubleSpinner()
+        self.grb_pitch_entry.set_precision(self.decimals)
+
+        grid0.addWidget(self.grb_pitch_label, 8, 0)
+        grid0.addWidget(self.grb_pitch_entry, 8, 1)
+
+        # Linear Pad Array custom angle
+        self.grb_angle_label = QtWidgets.QLabel('%s:' % _('Angle'))
+        self.grb_angle_label.setToolTip(
+            _("Angle at which each element in circular array is placed.")
+        )
+        self.grb_angle_entry = FCDoubleSpinner()
+        self.grb_angle_entry.set_precision(self.decimals)
+        self.grb_angle_entry.set_range(-360, 360)
+        self.grb_angle_entry.setSingleStep(5)
+
+        grid0.addWidget(self.grb_angle_label, 9, 0)
+        grid0.addWidget(self.grb_angle_entry, 9, 1)
+
+        self.grb_array_circ_label = QtWidgets.QLabel('<b>%s:</b>' % _('Circular Pad Array'))
+        grid0.addWidget(self.grb_array_circ_label, 10, 0, 1, 2)
+
+        # Circular Pad Array direction
+        self.grb_circular_direction_label = QtWidgets.QLabel('%s:' % _('Circular Direction'))
+        self.grb_circular_direction_label.setToolTip(
+            _("Direction for circular array.\n"
+              "Can be CW = clockwise or CCW = counter clockwise.")
+        )
+
+        self.grb_circular_dir_radio = RadioSet([{'label': _('CW'), 'value': 'CW'},
+                                                {'label': _('CCW'), 'value': 'CCW'}])
+
+        grid0.addWidget(self.grb_circular_direction_label, 11, 0)
+        grid0.addWidget(self.grb_circular_dir_radio, 11, 1)
+
+        # Circular Pad Array Angle
+        self.grb_circular_angle_label = QtWidgets.QLabel('%s:' % _('Circular Angle'))
+        self.grb_circular_angle_label.setToolTip(
+            _("Angle at which each element in circular array is placed.")
+        )
+        self.grb_circular_angle_entry = FCDoubleSpinner()
+        self.grb_circular_angle_entry.set_precision(self.decimals)
+        self.grb_circular_angle_entry.set_range(-360, 360)
+
+        self.grb_circular_angle_entry.setSingleStep(5)
+
+        grid0.addWidget(self.grb_circular_angle_label, 12, 0)
+        grid0.addWidget(self.grb_circular_angle_entry, 12, 1)
+
+        self.grb_array_tools_b_label = QtWidgets.QLabel('<b>%s:</b>' % _('Buffer Tool'))
+        grid0.addWidget(self.grb_array_tools_b_label, 13, 0, 1, 2)
+
+        # Buffer Distance
+        self.grb_buff_label = QtWidgets.QLabel('%s:' % _('Buffer distance'))
+        self.grb_buff_label.setToolTip(
+            _("Distance at which to buffer the Gerber element.")
+        )
+        self.grb_buff_entry = FCDoubleSpinner()
+        self.grb_buff_entry.set_precision(self.decimals)
+        self.grb_buff_entry.set_range(-9999, 9999)
+
+        grid0.addWidget(self.grb_buff_label, 14, 0)
+        grid0.addWidget(self.grb_buff_entry, 14, 1)
+
+        self.grb_array_tools_s_label = QtWidgets.QLabel('<b>%s:</b>' % _('Scale Tool'))
+        grid0.addWidget(self.grb_array_tools_s_label, 15, 0, 1, 2)
+
+        # Scale Factor
+        self.grb_scale_label = QtWidgets.QLabel('%s:' % _('Scale factor'))
+        self.grb_scale_label.setToolTip(
+            _("Factor to scale the Gerber element.")
+        )
+        self.grb_scale_entry = FCDoubleSpinner()
+        self.grb_scale_entry.set_precision(self.decimals)
+        self.grb_scale_entry.set_range(0, 9999)
+
+        grid0.addWidget(self.grb_scale_label, 16, 0)
+        grid0.addWidget(self.grb_scale_entry, 16, 1)
+
+        self.grb_array_tools_ma_label = QtWidgets.QLabel('<b>%s:</b>' % _('Mark Area Tool'))
+        grid0.addWidget(self.grb_array_tools_ma_label, 17, 0, 1, 2)
+
+        # Mark area Tool low threshold
+        self.grb_ma_low_label = QtWidgets.QLabel('%s:' % _('Threshold low'))
+        self.grb_ma_low_label.setToolTip(
+            _("Threshold value under which the apertures are not marked.")
+        )
+        self.grb_ma_low_entry = FCDoubleSpinner()
+        self.grb_ma_low_entry.set_precision(self.decimals)
+        self.grb_ma_low_entry.set_range(0, 9999)
+
+        grid0.addWidget(self.grb_ma_low_label, 18, 0)
+        grid0.addWidget(self.grb_ma_low_entry, 18, 1)
+
+        # Mark area Tool high threshold
+        self.grb_ma_high_label = QtWidgets.QLabel('%s:' % _('Threshold high'))
+        self.grb_ma_high_label.setToolTip(
+            _("Threshold value over which the apertures are not marked.")
+        )
+        self.grb_ma_high_entry = FCDoubleSpinner()
+        self.grb_ma_high_entry.set_precision(self.decimals)
+        self.grb_ma_high_entry.set_range(0, 9999)
+
+        grid0.addWidget(self.grb_ma_high_label, 19, 0)
+        grid0.addWidget(self.grb_ma_high_entry, 19, 1)
+
+        self.layout.addStretch()

appGUI/preferences/gerber/GerberExpPrefGroupUI.py

@@ -0,0 +1,118 @@
+from PyQt5 import QtWidgets, QtCore
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import RadioSet, FCSpinner
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class GerberExpPrefGroupUI(OptionsGroupUI):
+
+    def __init__(self, decimals=4, parent=None):
+        super(GerberExpPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("Gerber Export")))
+        self.decimals = decimals
+
+        # Plot options
+        self.export_options_label = QtWidgets.QLabel("<b>%s:</b>" % _("Export Options"))
+        self.export_options_label.setToolTip(
+            _("The parameters set here are used in the file exported\n"
+              "when using the File -> Export -> Export Gerber menu entry.")
+        )
+        self.layout.addWidget(self.export_options_label)
+
+        form = QtWidgets.QFormLayout()
+        self.layout.addLayout(form)
+
+        # Gerber Units
+        self.gerber_units_label = QtWidgets.QLabel('%s:' % _('Units'))
+        self.gerber_units_label.setToolTip(
+            _("The units used in the Gerber file.")
+        )
+
+        self.gerber_units_radio = RadioSet([{'label': _('INCH'), 'value': 'IN'},
+                                            {'label': _('MM'), 'value': 'MM'}])
+        self.gerber_units_radio.setToolTip(
+            _("The units used in the Gerber file.")
+        )
+
+        form.addRow(self.gerber_units_label, self.gerber_units_radio)
+
+        # Gerber format
+        self.digits_label = QtWidgets.QLabel("%s:" % _("Int/Decimals"))
+        self.digits_label.setToolTip(
+            _("The number of digits in the whole part of the number\n"
+              "and in the fractional part of the number.")
+        )
+
+        hlay1 = QtWidgets.QHBoxLayout()
+
+        self.format_whole_entry = FCSpinner()
+        self.format_whole_entry.set_range(0, 9)
+        self.format_whole_entry.set_step(1)
+        self.format_whole_entry.setWrapping(True)
+
+        self.format_whole_entry.setMinimumWidth(30)
+        self.format_whole_entry.setToolTip(
+            _("This numbers signify the number of digits in\n"
+              "the whole part of Gerber coordinates.")
+        )
+        hlay1.addWidget(self.format_whole_entry, QtCore.Qt.AlignLeft)
+
+        gerber_separator_label = QtWidgets.QLabel(':')
+        gerber_separator_label.setFixedWidth(5)
+        hlay1.addWidget(gerber_separator_label, QtCore.Qt.AlignLeft)
+
+        self.format_dec_entry = FCSpinner()
+        self.format_dec_entry.set_range(0, 9)
+        self.format_dec_entry.set_step(1)
+        self.format_dec_entry.setWrapping(True)
+
+        self.format_dec_entry.setMinimumWidth(30)
+        self.format_dec_entry.setToolTip(
+            _("This numbers signify the number of digits in\n"
+              "the decimal part of Gerber coordinates.")
+        )
+        hlay1.addWidget(self.format_dec_entry, QtCore.Qt.AlignLeft)
+        hlay1.addStretch()
+
+        form.addRow(self.digits_label, hlay1)
+
+        # Gerber Zeros
+        self.zeros_label = QtWidgets.QLabel('%s:' % _('Zeros'))
+        self.zeros_label.setAlignment(QtCore.Qt.AlignLeft)
+        self.zeros_label.setToolTip(
+            _("This sets the type of Gerber zeros.\n"
+              "If LZ then Leading Zeros are removed and\n"
+              "Trailing Zeros are kept.\n"
+              "If TZ is checked then Trailing Zeros are removed\n"
+              "and Leading Zeros are kept.")
+        )
+
+        self.zeros_radio = RadioSet([{'label': _('LZ'), 'value': 'L'},
+                                     {'label': _('TZ'), 'value': 'T'}])
+        self.zeros_radio.setToolTip(
+            _("This sets the type of Gerber zeros.\n"
+              "If LZ then Leading Zeros are removed and\n"
+              "Trailing Zeros are kept.\n"
+              "If TZ is checked then Trailing Zeros are removed\n"
+              "and Leading Zeros are kept.")
+        )
+
+        form.addRow(self.zeros_label, self.zeros_radio)
+
+        self.layout.addStretch()

appGUI/preferences/gerber/GerberGenPrefGroupUI.py

@@ -0,0 +1,207 @@
+from PyQt5 import QtWidgets, QtCore, QtGui
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import FCCheckBox, FCSpinner, RadioSet, FCEntry, FCSliderWithSpinner, FCColorEntry
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class GerberGenPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+        # OptionsGroupUI.__init__(self, "Gerber General Preferences", parent=parent)
+        super(GerberGenPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("Gerber General")))
+        self.decimals = decimals
+
+        # ## Plot options
+        self.plot_options_label = QtWidgets.QLabel("<b>%s:</b>" % _("Plot Options"))
+        self.layout.addWidget(self.plot_options_label)
+
+        grid0 = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid0)
+
+        # Plot CB
+        self.plot_cb = FCCheckBox(label='%s' % _('Plot'))
+        self.plot_options_label.setToolTip(
+            _("Plot (show) this object.")
+        )
+        grid0.addWidget(self.plot_cb, 0, 0)
+
+        # Solid CB
+        self.solid_cb = FCCheckBox(label='%s' % _('Solid'))
+        self.solid_cb.setToolTip(
+            _("Solid color polygons.")
+        )
+        grid0.addWidget(self.solid_cb, 0, 1)
+
+        # Multicolored CB
+        self.multicolored_cb = FCCheckBox(label='%s' % _('M-Color'))
+        self.multicolored_cb.setToolTip(
+            _("Draw polygons in different colors.")
+        )
+        grid0.addWidget(self.multicolored_cb, 0, 2)
+
+        # Number of circle steps for circular aperture linear approximation
+        self.circle_steps_label = QtWidgets.QLabel('%s:' % _("Circle Steps"))
+        self.circle_steps_label.setToolTip(
+            _("The number of circle steps for Gerber \n"
+              "circular aperture linear approximation.")
+        )
+        self.circle_steps_entry = FCSpinner()
+        self.circle_steps_entry.set_range(0, 9999)
+
+        grid0.addWidget(self.circle_steps_label, 1, 0)
+        grid0.addWidget(self.circle_steps_entry, 1, 1, 1, 2)
+
+        grid0.addWidget(QtWidgets.QLabel(''), 2, 0, 1, 3)
+
+        # Default format for Gerber
+        self.gerber_default_label = QtWidgets.QLabel('<b>%s:</b>' % _('Default Values'))
+        self.gerber_default_label.setToolTip(
+            _("Those values will be used as fallback values\n"
+              "in case that they are not found in the Gerber file.")
+        )
+
+        grid0.addWidget(self.gerber_default_label, 3, 0, 1, 3)
+
+        # Gerber Units
+        self.gerber_units_label = QtWidgets.QLabel('%s:' % _('Units'))
+        self.gerber_units_label.setToolTip(
+            _("The units used in the Gerber file.")
+        )
+
+        self.gerber_units_radio = RadioSet([{'label': _('INCH'), 'value': 'IN'},
+                                            {'label': _('MM'), 'value': 'MM'}])
+        self.gerber_units_radio.setToolTip(
+            _("The units used in the Gerber file.")
+        )
+
+        grid0.addWidget(self.gerber_units_label, 4, 0)
+        grid0.addWidget(self.gerber_units_radio, 4, 1, 1, 2)
+
+        # Gerber Zeros
+        self.gerber_zeros_label = QtWidgets.QLabel('%s:' % _('Zeros'))
+        self.gerber_zeros_label.setAlignment(QtCore.Qt.AlignLeft)
+        self.gerber_zeros_label.setToolTip(
+            _("This sets the type of Gerber zeros.\n"
+              "If LZ then Leading Zeros are removed and\n"
+              "Trailing Zeros are kept.\n"
+              "If TZ is checked then Trailing Zeros are removed\n"
+              "and Leading Zeros are kept.")
+        )
+
+        self.gerber_zeros_radio = RadioSet([{'label': _('LZ'), 'value': 'L'},
+                                            {'label': _('TZ'), 'value': 'T'}])
+        self.gerber_zeros_radio.setToolTip(
+            _("This sets the type of Gerber zeros.\n"
+              "If LZ then Leading Zeros are removed and\n"
+              "Trailing Zeros are kept.\n"
+              "If TZ is checked then Trailing Zeros are removed\n"
+              "and Leading Zeros are kept.")
+        )
+
+        grid0.addWidget(self.gerber_zeros_label, 5, 0)
+        grid0.addWidget(self.gerber_zeros_radio, 5, 1, 1, 2)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line, 6, 0, 1, 3)
+
+        # Apertures Cleaning
+        self.gerber_clean_cb = FCCheckBox(label='%s' % _('Clean Apertures'))
+        self.gerber_clean_cb.setToolTip(
+            _("Will remove apertures that do not have geometry\n"
+              "thus lowering the number of apertures in the Gerber object.")
+        )
+        grid0.addWidget(self.gerber_clean_cb, 7, 0, 1, 3)
+
+        # Apply Extra Buffering
+        self.gerber_extra_buffering = FCCheckBox(label='%s' % _('Polarity change buffer'))
+        self.gerber_extra_buffering.setToolTip(
+            _("Will apply extra buffering for the\n"
+              "solid geometry when we have polarity changes.\n"
+              "May help loading Gerber files that otherwise\n"
+              "do not load correctly.")
+        )
+        grid0.addWidget(self.gerber_extra_buffering, 8, 0, 1, 3)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line, 9, 0, 1, 3)
+
+        # Gerber Object Color
+        self.gerber_color_label = QtWidgets.QLabel('<b>%s</b>' % _('Object Color'))
+        grid0.addWidget(self.gerber_color_label, 10, 0, 1, 3)
+
+        # Plot Line Color
+        self.line_color_label = QtWidgets.QLabel('%s:' % _('Outline'))
+        self.line_color_label.setToolTip(
+            _("Set the line color for plotted objects.")
+        )
+        self.line_color_entry = FCColorEntry()
+
+        grid0.addWidget(self.line_color_label, 11, 0)
+        grid0.addWidget(self.line_color_entry, 11, 1, 1, 2)
+
+        # Plot Fill Color
+        self.fill_color_label = QtWidgets.QLabel('%s:' % _('Fill'))
+        self.fill_color_label.setToolTip(
+            _("Set the fill color for plotted objects.\n"
+              "First 6 digits are the color and the last 2\n"
+              "digits are for alpha (transparency) level.")
+        )
+        self.fill_color_entry = FCColorEntry()
+
+        grid0.addWidget(self.fill_color_label, 12, 0)
+        grid0.addWidget(self.fill_color_entry, 12, 1, 1, 2)
+
+        # Plot Fill Transparency Level
+        self.gerber_alpha_label = QtWidgets.QLabel('%s:' % _('Alpha'))
+        self.gerber_alpha_label.setToolTip(
+            _("Set the fill transparency for plotted objects.")
+        )
+        self.gerber_alpha_entry = FCSliderWithSpinner(0, 255, 1)
+
+        grid0.addWidget(self.gerber_alpha_label, 13, 0)
+        grid0.addWidget(self.gerber_alpha_entry, 13, 1, 1, 2)
+
+        self.layout.addStretch()
+
+        # Setting plot colors signals
+        self.line_color_entry.editingFinished.connect(self.on_line_color_changed)
+        self.fill_color_entry.editingFinished.connect(self.on_fill_color_changed)
+
+        self.gerber_alpha_entry.valueChanged.connect(self.on_gerber_alpha_changed)     # alpha
+
+    # Setting plot colors handlers
+    def on_fill_color_changed(self):
+        self.app.defaults['gerber_plot_fill'] = self.fill_color_entry.get_value()[:7] + \
+                                                self.app.defaults['gerber_plot_fill'][7:9]
+
+    def on_gerber_alpha_changed(self, spinner_value):
+        self.app.defaults['gerber_plot_fill'] = \
+            self.app.defaults['gerber_plot_fill'][:7] + \
+            (hex(spinner_value)[2:] if int(hex(spinner_value)[2:], 16) > 0 else '00')
+        self.app.defaults['gerber_plot_line'] = \
+            self.app.defaults['gerber_plot_line'][:7] + \
+            (hex(spinner_value)[2:] if int(hex(spinner_value)[2:], 16) > 0 else '00')
+
+    def on_line_color_changed(self):
+        self.app.defaults['gerber_plot_line'] = self.line_color_entry.get_value()[:7] + \
+                                                self.app.defaults['gerber_plot_line'][7:9]

appGUI/preferences/gerber/GerberOptPrefGroupUI.py

@@ -0,0 +1,100 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import FCDoubleSpinner, FCSpinner, RadioSet, FCCheckBox, FCComboBox
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class GerberOptPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+        # OptionsGroupUI.__init__(self, "Gerber Options Preferences", parent=parent)
+        super(GerberOptPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.decimals = decimals
+
+        self.setTitle(str(_("Gerber Options")))
+
+        # ## Clear non-copper regions
+        self.clearcopper_label = QtWidgets.QLabel("<b>%s:</b>" % _("Non-copper regions"))
+        self.clearcopper_label.setToolTip(
+            _("Create polygons covering the\n"
+              "areas without copper on the PCB.\n"
+              "Equivalent to the inverse of this\n"
+              "object. Can be used to remove all\n"
+              "copper from a specified region.")
+        )
+        self.layout.addWidget(self.clearcopper_label)
+
+        grid1 = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid1)
+
+        # Margin
+        bmlabel = QtWidgets.QLabel('%s:' % _('Boundary Margin'))
+        bmlabel.setToolTip(
+            _("Specify the edge of the PCB\n"
+              "by drawing a box around all\n"
+              "objects with this minimum\n"
+              "distance.")
+        )
+        grid1.addWidget(bmlabel, 0, 0)
+        self.noncopper_margin_entry = FCDoubleSpinner()
+        self.noncopper_margin_entry.set_precision(self.decimals)
+        self.noncopper_margin_entry.setSingleStep(0.1)
+        self.noncopper_margin_entry.set_range(-9999, 9999)
+        grid1.addWidget(self.noncopper_margin_entry, 0, 1)
+
+        # Rounded corners
+        self.noncopper_rounded_cb = FCCheckBox(label=_("Rounded Geo"))
+        self.noncopper_rounded_cb.setToolTip(
+            _("Resulting geometry will have rounded corners.")
+        )
+        grid1.addWidget(self.noncopper_rounded_cb, 1, 0, 1, 2)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid1.addWidget(separator_line, 2, 0, 1, 2)
+
+        # ## Bounding box
+        self.boundingbox_label = QtWidgets.QLabel('<b>%s:</b>' % _('Bounding Box'))
+        self.layout.addWidget(self.boundingbox_label)
+
+        grid2 = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid2)
+
+        bbmargin = QtWidgets.QLabel('%s:' % _('Boundary Margin'))
+        bbmargin.setToolTip(
+            _("Distance of the edges of the box\n"
+              "to the nearest polygon.")
+        )
+        self.bbmargin_entry = FCDoubleSpinner()
+        self.bbmargin_entry.set_precision(self.decimals)
+        self.bbmargin_entry.setSingleStep(0.1)
+        self.bbmargin_entry.set_range(-9999, 9999)
+
+        grid2.addWidget(bbmargin, 0, 0)
+        grid2.addWidget(self.bbmargin_entry, 0, 1)
+
+        self.bbrounded_cb = FCCheckBox(label='%s' % _("Rounded Geo"))
+        self.bbrounded_cb.setToolTip(
+            _("If the bounding box is \n"
+              "to have rounded corners\n"
+              "their radius is equal to\n"
+              "the margin.")
+        )
+        grid2.addWidget(self.bbrounded_cb, 1, 0, 1, 2)
+        self.layout.addStretch()

appGUI/preferences/gerber/GerberPreferencesUI.py

@@ -0,0 +1,54 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.preferences.gerber.GerberEditorPrefGroupUI import GerberEditorPrefGroupUI
+from appGUI.preferences.gerber.GerberExpPrefGroupUI import GerberExpPrefGroupUI
+from appGUI.preferences.gerber.GerberAdvOptPrefGroupUI import GerberAdvOptPrefGroupUI
+from appGUI.preferences.gerber.GerberOptPrefGroupUI import GerberOptPrefGroupUI
+from appGUI.preferences.gerber.GerberGenPrefGroupUI import GerberGenPrefGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class GerberPreferencesUI(QtWidgets.QWidget):
+
+    def __init__(self, decimals, parent=None):
+        QtWidgets.QWidget.__init__(self, parent=parent)
+        self.layout = QtWidgets.QHBoxLayout()
+        self.setLayout(self.layout)
+        self.decimals = decimals
+
+        self.gerber_gen_group = GerberGenPrefGroupUI(decimals=self.decimals)
+        self.gerber_gen_group.setMinimumWidth(250)
+        self.gerber_opt_group = GerberOptPrefGroupUI(decimals=self.decimals)
+        self.gerber_opt_group.setMinimumWidth(250)
+        self.gerber_exp_group = GerberExpPrefGroupUI(decimals=self.decimals)
+        self.gerber_exp_group.setMinimumWidth(230)
+        self.gerber_adv_opt_group = GerberAdvOptPrefGroupUI(decimals=self.decimals)
+        self.gerber_adv_opt_group.setMinimumWidth(200)
+        self.gerber_editor_group = GerberEditorPrefGroupUI(decimals=self.decimals)
+        self.gerber_editor_group.setMinimumWidth(200)
+
+        self.vlay = QtWidgets.QVBoxLayout()
+        self.vlay.addWidget(self.gerber_opt_group)
+        self.vlay.addWidget(self.gerber_exp_group)
+        self.vlay.addStretch()
+
+        self.layout.addWidget(self.gerber_gen_group)
+        self.layout.addLayout(self.vlay)
+        self.layout.addWidget(self.gerber_adv_opt_group)
+        self.layout.addWidget(self.gerber_editor_group)
+
+        self.layout.addStretch()

appGUI/preferences/tools/Tools2CThievingPrefGroupUI.py

@@ -0,0 +1,274 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import FCSpinner, FCDoubleSpinner, RadioSet
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class Tools2CThievingPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+
+        super(Tools2CThievingPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("Copper Thieving Tool Options")))
+        self.decimals = decimals
+
+        # ## Grid Layout
+        grid_lay = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid_lay)
+        grid_lay.setColumnStretch(0, 0)
+        grid_lay.setColumnStretch(1, 1)
+
+        # ## Parameters
+        self.cflabel = QtWidgets.QLabel('<b>%s</b>' % _('Parameters'))
+        self.cflabel.setToolTip(
+            _("A tool to generate a Copper Thieving that can be added\n"
+              "to a selected Gerber file.")
+        )
+        grid_lay.addWidget(self.cflabel, 0, 0, 1, 2)
+
+        # CIRCLE STEPS - to be used when buffering
+        self.circle_steps_lbl = QtWidgets.QLabel('%s:' % _("Circle Steps"))
+        self.circle_steps_lbl.setToolTip(
+            _("Number of steps (lines) used to interpolate circles.")
+        )
+
+        self.circlesteps_entry = FCSpinner()
+        self.circlesteps_entry.set_range(1, 9999)
+
+        grid_lay.addWidget(self.circle_steps_lbl, 1, 0)
+        grid_lay.addWidget(self.circlesteps_entry, 1, 1)
+
+        # CLEARANCE #
+        self.clearance_label = QtWidgets.QLabel('%s:' % _("Clearance"))
+        self.clearance_label.setToolTip(
+            _("This set the distance between the copper Thieving components\n"
+              "(the polygon fill may be split in multiple polygons)\n"
+              "and the copper traces in the Gerber file.")
+        )
+        self.clearance_entry = FCDoubleSpinner()
+        self.clearance_entry.setMinimum(0.00001)
+        self.clearance_entry.set_precision(self.decimals)
+        self.clearance_entry.setSingleStep(0.1)
+
+        grid_lay.addWidget(self.clearance_label, 2, 0)
+        grid_lay.addWidget(self.clearance_entry, 2, 1)
+
+        # MARGIN #
+        self.margin_label = QtWidgets.QLabel('%s:' % _("Margin"))
+        self.margin_label.setToolTip(
+            _("Bounding box margin.")
+        )
+        self.margin_entry = FCDoubleSpinner()
+        self.margin_entry.setMinimum(0.0)
+        self.margin_entry.set_precision(self.decimals)
+        self.margin_entry.setSingleStep(0.1)
+
+        grid_lay.addWidget(self.margin_label, 3, 0)
+        grid_lay.addWidget(self.margin_entry, 3, 1)
+
+        # Reference #
+        self.reference_radio = RadioSet([
+            {'label': _('Itself'), 'value': 'itself'},
+            {"label": _("Area Selection"), "value": "area"},
+            {'label': _("Reference Object"), 'value': 'box'}
+        ], orientation='vertical', stretch=False)
+        self.reference_label = QtWidgets.QLabel(_("Reference:"))
+        self.reference_label.setToolTip(
+            _("- 'Itself' - the copper Thieving extent is based on the object extent.\n"
+              "- 'Area Selection' - left mouse click to start selection of the area to be filled.\n"
+              "- 'Reference Object' - will do copper thieving within the area specified by another object.")
+        )
+        grid_lay.addWidget(self.reference_label, 4, 0)
+        grid_lay.addWidget(self.reference_radio, 4, 1)
+
+        # Bounding Box Type #
+        self.bbox_type_radio = RadioSet([
+            {'label': _('Rectangular'), 'value': 'rect'},
+            {"label": _("Minimal"), "value": "min"}
+        ], stretch=False)
+        self.bbox_type_label = QtWidgets.QLabel(_("Box Type:"))
+        self.bbox_type_label.setToolTip(
+            _("- 'Rectangular' - the bounding box will be of rectangular shape.\n"
+              "- 'Minimal' - the bounding box will be the convex hull shape.")
+        )
+        grid_lay.addWidget(self.bbox_type_label, 5, 0)
+        grid_lay.addWidget(self.bbox_type_radio, 5, 1)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid_lay.addWidget(separator_line, 6, 0, 1, 2)
+
+        # Fill Type
+        self.fill_type_radio = RadioSet([
+            {'label': _('Solid'), 'value': 'solid'},
+            {"label": _("Dots Grid"), "value": "dot"},
+            {"label": _("Squares Grid"), "value": "square"},
+            {"label": _("Lines Grid"), "value": "line"}
+        ], orientation='vertical', stretch=False)
+        self.fill_type_label = QtWidgets.QLabel(_("Fill Type:"))
+        self.fill_type_label.setToolTip(
+            _("- 'Solid' - copper thieving will be a solid polygon.\n"
+              "- 'Dots Grid' - the empty area will be filled with a pattern of dots.\n"
+              "- 'Squares Grid' - the empty area will be filled with a pattern of squares.\n"
+              "- 'Lines Grid' - the empty area will be filled with a pattern of lines.")
+        )
+        grid_lay.addWidget(self.fill_type_label, 7, 0)
+        grid_lay.addWidget(self.fill_type_radio, 7, 1)
+
+        self.dots_label = QtWidgets.QLabel('<b>%s</b>:' % _("Dots Grid Parameters"))
+        grid_lay.addWidget(self.dots_label, 8, 0, 1, 2)
+
+        # Dot diameter #
+        self.dotdia_label = QtWidgets.QLabel('%s:' % _("Dia"))
+        self.dotdia_label.setToolTip(
+            _("Dot diameter in Dots Grid.")
+        )
+        self.dot_dia_entry = FCDoubleSpinner()
+        self.dot_dia_entry.set_range(0.0, 9999.9999)
+        self.dot_dia_entry.set_precision(self.decimals)
+        self.dot_dia_entry.setSingleStep(0.1)
+
+        grid_lay.addWidget(self.dotdia_label, 9, 0)
+        grid_lay.addWidget(self.dot_dia_entry, 9, 1)
+
+        # Dot spacing #
+        self.dotspacing_label = QtWidgets.QLabel('%s:' % _("Spacing"))
+        self.dotspacing_label.setToolTip(
+            _("Distance between each two dots in Dots Grid.")
+        )
+        self.dot_spacing_entry = FCDoubleSpinner()
+        self.dot_spacing_entry.set_range(0.0, 9999.9999)
+        self.dot_spacing_entry.set_precision(self.decimals)
+        self.dot_spacing_entry.setSingleStep(0.1)
+
+        grid_lay.addWidget(self.dotspacing_label, 10, 0)
+        grid_lay.addWidget(self.dot_spacing_entry, 10, 1)
+
+        self.squares_label = QtWidgets.QLabel('<b>%s</b>:' % _("Squares Grid Parameters"))
+        grid_lay.addWidget(self.squares_label, 11, 0, 1, 2)
+
+        # Square Size #
+        self.square_size_label = QtWidgets.QLabel('%s:' % _("Size"))
+        self.square_size_label.setToolTip(
+            _("Square side size in Squares Grid.")
+        )
+        self.square_size_entry = FCDoubleSpinner()
+        self.square_size_entry.set_range(0.0, 9999.9999)
+        self.square_size_entry.set_precision(self.decimals)
+        self.square_size_entry.setSingleStep(0.1)
+
+        grid_lay.addWidget(self.square_size_label, 12, 0)
+        grid_lay.addWidget(self.square_size_entry, 12, 1)
+
+        # Squares spacing #
+        self.squares_spacing_label = QtWidgets.QLabel('%s:' % _("Spacing"))
+        self.squares_spacing_label.setToolTip(
+            _("Distance between each two squares in Squares Grid.")
+        )
+        self.squares_spacing_entry = FCDoubleSpinner()
+        self.squares_spacing_entry.set_range(0.0, 9999.9999)
+        self.squares_spacing_entry.set_precision(self.decimals)
+        self.squares_spacing_entry.setSingleStep(0.1)
+
+        grid_lay.addWidget(self.squares_spacing_label, 13, 0)
+        grid_lay.addWidget(self.squares_spacing_entry, 13, 1)
+
+        self.lines_label = QtWidgets.QLabel('<b>%s</b>:' % _("Lines Grid Parameters"))
+        grid_lay.addWidget(self.lines_label, 14, 0, 1, 2)
+
+        # Square Size #
+        self.line_size_label = QtWidgets.QLabel('%s:' % _("Size"))
+        self.line_size_label.setToolTip(
+            _("Line thickness size in Lines Grid.")
+        )
+        self.line_size_entry = FCDoubleSpinner()
+        self.line_size_entry.set_range(0.0, 9999.9999)
+        self.line_size_entry.set_precision(self.decimals)
+        self.line_size_entry.setSingleStep(0.1)
+
+        grid_lay.addWidget(self.line_size_label, 15, 0)
+        grid_lay.addWidget(self.line_size_entry, 15, 1)
+
+        # Lines spacing #
+        self.lines_spacing_label = QtWidgets.QLabel('%s:' % _("Spacing"))
+        self.lines_spacing_label.setToolTip(
+            _("Distance between each two lines in Lines Grid.")
+        )
+        self.lines_spacing_entry = FCDoubleSpinner()
+        self.lines_spacing_entry.set_range(0.0, 9999.9999)
+        self.lines_spacing_entry.set_precision(self.decimals)
+        self.lines_spacing_entry.setSingleStep(0.1)
+
+        grid_lay.addWidget(self.lines_spacing_label, 16, 0)
+        grid_lay.addWidget(self.lines_spacing_entry, 16, 1)
+
+        self.robber_bar_label = QtWidgets.QLabel('<b>%s</b>' % _('Robber Bar Parameters'))
+        self.robber_bar_label.setToolTip(
+            _("Parameters used for the robber bar.\n"
+              "Robber bar = copper border to help in pattern hole plating.")
+        )
+        grid_lay.addWidget(self.robber_bar_label, 17, 0, 1, 2)
+
+        # ROBBER BAR MARGIN #
+        self.rb_margin_label = QtWidgets.QLabel('%s:' % _("Margin"))
+        self.rb_margin_label.setToolTip(
+            _("Bounding box margin for robber bar.")
+        )
+        self.rb_margin_entry = FCDoubleSpinner()
+        self.rb_margin_entry.set_range(-9999.9999, 9999.9999)
+        self.rb_margin_entry.set_precision(self.decimals)
+        self.rb_margin_entry.setSingleStep(0.1)
+
+        grid_lay.addWidget(self.rb_margin_label, 18, 0)
+        grid_lay.addWidget(self.rb_margin_entry, 18, 1)
+
+        # THICKNESS #
+        self.rb_thickness_label = QtWidgets.QLabel('%s:' % _("Thickness"))
+        self.rb_thickness_label.setToolTip(
+            _("The robber bar thickness.")
+        )
+        self.rb_thickness_entry = FCDoubleSpinner()
+        self.rb_thickness_entry.set_range(0.0000, 9999.9999)
+        self.rb_thickness_entry.set_precision(self.decimals)
+        self.rb_thickness_entry.setSingleStep(0.1)
+
+        grid_lay.addWidget(self.rb_thickness_label, 19, 0)
+        grid_lay.addWidget(self.rb_thickness_entry, 19, 1)
+
+        self.patern_mask_label = QtWidgets.QLabel('<b>%s</b>' % _('Pattern Plating Mask'))
+        self.patern_mask_label.setToolTip(
+            _("Generate a mask for pattern plating.")
+        )
+        grid_lay.addWidget(self.patern_mask_label, 20, 0, 1, 2)
+
+        # Openings CLEARANCE #
+        self.clearance_ppm_label = QtWidgets.QLabel('%s:' % _("Clearance"))
+        self.clearance_ppm_label.setToolTip(
+            _("The distance between the possible copper thieving elements\n"
+              "and/or robber bar and the actual openings in the mask.")
+        )
+        self.clearance_ppm_entry = FCDoubleSpinner()
+        self.clearance_ppm_entry.set_range(-9999.9999, 9999.9999)
+        self.clearance_ppm_entry.set_precision(self.decimals)
+        self.clearance_ppm_entry.setSingleStep(0.1)
+
+        grid_lay.addWidget(self.clearance_ppm_label, 21, 0)
+        grid_lay.addWidget(self.clearance_ppm_entry, 21, 1)
+
+        self.layout.addStretch()

appGUI/preferences/tools/Tools2CalPrefGroupUI.py

@@ -0,0 +1,138 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import RadioSet, FCDoubleSpinner, FCCheckBox, NumericalEvalTupleEntry
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class Tools2CalPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+
+        super(Tools2CalPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("Calibration Tool Options")))
+        self.decimals = decimals
+
+        # ## Grid Layout
+        grid_lay = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid_lay)
+        grid_lay.setColumnStretch(0, 0)
+        grid_lay.setColumnStretch(1, 1)
+
+        self.param_label = QtWidgets.QLabel('<b>%s:</b>' % _('Parameters'))
+        self.param_label.setToolTip(
+            _("Parameters used for this tool.")
+        )
+        grid_lay.addWidget(self.param_label, 0, 0, 1, 2)
+
+        # Calibration source
+        self.cal_source_lbl = QtWidgets.QLabel("<b>%s:</b>" % _("Source Type"))
+        self.cal_source_lbl.setToolTip(_("The source of calibration points.\n"
+                                         "It can be:\n"
+                                         "- Object -> click a hole geo for Excellon or a pad for Gerber\n"
+                                         "- Free -> click freely on canvas to acquire the calibration points"))
+        self.cal_source_radio = RadioSet([{'label': _('Object'), 'value': 'object'},
+                                          {'label': _('Free'), 'value': 'free'}],
+                                         stretch=False)
+
+        grid_lay.addWidget(self.cal_source_lbl, 1, 0)
+        grid_lay.addWidget(self.cal_source_radio, 1, 1, 1, 2)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid_lay.addWidget(separator_line, 2, 0, 1, 2)
+
+        # Travel Z entry
+        travelz_lbl = QtWidgets.QLabel('%s:' % _("Travel Z"))
+        travelz_lbl.setToolTip(
+            _("Height (Z) for travelling between the points.")
+        )
+
+        self.travelz_entry = FCDoubleSpinner()
+        self.travelz_entry.set_range(-9999.9999, 9999.9999)
+        self.travelz_entry.set_precision(self.decimals)
+        self.travelz_entry.setSingleStep(0.1)
+
+        grid_lay.addWidget(travelz_lbl, 3, 0)
+        grid_lay.addWidget(self.travelz_entry, 3, 1, 1, 2)
+
+        # Verification Z entry
+        verz_lbl = QtWidgets.QLabel('%s:' % _("Verification Z"))
+        verz_lbl.setToolTip(
+            _("Height (Z) for checking the point.")
+        )
+
+        self.verz_entry = FCDoubleSpinner()
+        self.verz_entry.set_range(-9999.9999, 9999.9999)
+        self.verz_entry.set_precision(self.decimals)
+        self.verz_entry.setSingleStep(0.1)
+
+        grid_lay.addWidget(verz_lbl, 4, 0)
+        grid_lay.addWidget(self.verz_entry, 4, 1, 1, 2)
+
+        # Zero the Z of the verification tool
+        self.zeroz_cb = FCCheckBox('%s' % _("Zero Z tool"))
+        self.zeroz_cb.setToolTip(
+            _("Include a sequence to zero the height (Z)\n"
+              "of the verification tool.")
+        )
+
+        grid_lay.addWidget(self.zeroz_cb, 5, 0, 1, 3)
+
+        # Toochange Z entry
+        toolchangez_lbl = QtWidgets.QLabel('%s:' % _("Toolchange Z"))
+        toolchangez_lbl.setToolTip(
+            _("Height (Z) for mounting the verification probe.")
+        )
+
+        self.toolchangez_entry = FCDoubleSpinner()
+        self.toolchangez_entry.set_range(0.0000, 9999.9999)
+        self.toolchangez_entry.set_precision(self.decimals)
+        self.toolchangez_entry.setSingleStep(0.1)
+
+        grid_lay.addWidget(toolchangez_lbl, 6, 0)
+        grid_lay.addWidget(self.toolchangez_entry, 6, 1, 1, 2)
+
+        # Toolchange X-Y entry
+        toolchangexy_lbl = QtWidgets.QLabel('%s:' % _('Toolchange X-Y'))
+        toolchangexy_lbl.setToolTip(
+            _("Toolchange X,Y position.\n"
+              "If no value is entered then the current\n"
+              "(x, y) point will be used,")
+        )
+
+        self.toolchange_xy_entry = NumericalEvalTupleEntry(border_color='#0069A9')
+
+        grid_lay.addWidget(toolchangexy_lbl, 7, 0)
+        grid_lay.addWidget(self.toolchange_xy_entry, 7, 1, 1, 2)
+
+        # Second point choice
+        second_point_lbl = QtWidgets.QLabel('%s:' % _("Second point"))
+        second_point_lbl.setToolTip(
+            _("Second point in the Gcode verification can be:\n"
+              "- top-left -> the user will align the PCB vertically\n"
+              "- bottom-right -> the user will align the PCB horizontally")
+        )
+        self.second_point_radio = RadioSet([{'label': _('Top-Left'), 'value': 'tl'},
+                                            {'label': _('Bottom-Right'), 'value': 'br'}],
+                                           orientation='vertical')
+
+        grid_lay.addWidget(second_point_lbl, 8, 0)
+        grid_lay.addWidget(self.second_point_radio, 8, 1, 1, 2)
+
+        self.layout.addStretch()

appGUI/preferences/tools/Tools2EDrillsPrefGroupUI.py

@@ -0,0 +1,231 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import FCCheckBox, RadioSet, FCDoubleSpinner
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class Tools2EDrillsPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+
+        super(Tools2EDrillsPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("Extract Drills Options")))
+        self.decimals = decimals
+
+        # ## Grid Layout
+        grid_lay = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid_lay)
+        grid_lay.setColumnStretch(0, 0)
+        grid_lay.setColumnStretch(1, 1)
+
+        self.param_label = QtWidgets.QLabel('<b>%s:</b>' % _('Parameters'))
+        self.param_label.setToolTip(
+            _("Parameters used for this tool.")
+        )
+        grid_lay.addWidget(self.param_label, 0, 0, 1, 2)
+
+        self.padt_label = QtWidgets.QLabel("<b>%s:</b>" % _("Processed Pads Type"))
+        self.padt_label.setToolTip(
+            _("The type of pads shape to be processed.\n"
+              "If the PCB has many SMD pads with rectangular pads,\n"
+              "disable the Rectangular aperture.")
+        )
+
+        grid_lay.addWidget(self.padt_label, 2, 0, 1, 2)
+
+        # Circular Aperture Selection
+        self.circular_cb = FCCheckBox('%s' % _("Circular"))
+        self.circular_cb.setToolTip(
+            _("Process Circular Pads.")
+        )
+
+        grid_lay.addWidget(self.circular_cb, 3, 0, 1, 2)
+
+        # Oblong Aperture Selection
+        self.oblong_cb = FCCheckBox('%s' % _("Oblong"))
+        self.oblong_cb.setToolTip(
+            _("Process Oblong Pads.")
+        )
+
+        grid_lay.addWidget(self.oblong_cb, 4, 0, 1, 2)
+
+        # Square Aperture Selection
+        self.square_cb = FCCheckBox('%s' % _("Square"))
+        self.square_cb.setToolTip(
+            _("Process Square Pads.")
+        )
+
+        grid_lay.addWidget(self.square_cb, 5, 0, 1, 2)
+
+        # Rectangular Aperture Selection
+        self.rectangular_cb = FCCheckBox('%s' % _("Rectangular"))
+        self.rectangular_cb.setToolTip(
+            _("Process Rectangular Pads.")
+        )
+
+        grid_lay.addWidget(self.rectangular_cb, 6, 0, 1, 2)
+
+        # Others type of Apertures Selection
+        self.other_cb = FCCheckBox('%s' % _("Others"))
+        self.other_cb.setToolTip(
+            _("Process pads not in the categories above.")
+        )
+
+        grid_lay.addWidget(self.other_cb, 7, 0, 1, 2)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid_lay.addWidget(separator_line, 8, 0, 1, 2)
+
+        # ## Axis
+        self.hole_size_radio = RadioSet(
+            [
+                {'label': _("Fixed Diameter"), 'value': 'fixed'},
+                {'label': _("Fixed Annular Ring"), 'value': 'ring'},
+                {'label': _("Proportional"), 'value': 'prop'}
+            ],
+            orientation='vertical',
+            stretch=False)
+        self.hole_size_label = QtWidgets.QLabel('<b>%s:</b>' % _("Method"))
+        self.hole_size_label.setToolTip(
+            _("The method for processing pads. Can be:\n"
+              "- Fixed Diameter -> all holes will have a set size\n"
+              "- Fixed Annular Ring -> all holes will have a set annular ring\n"
+              "- Proportional -> each hole size will be a fraction of the pad size"))
+
+        grid_lay.addWidget(self.hole_size_label, 9, 0)
+        grid_lay.addWidget(self.hole_size_radio, 9, 1)
+
+        # grid_lay1.addWidget(QtWidgets.QLabel(''))
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid_lay.addWidget(separator_line, 10, 0, 1, 2)
+
+        # Annular Ring
+        self.fixed_label = QtWidgets.QLabel('<b>%s</b>' % _("Fixed Diameter"))
+        grid_lay.addWidget(self.fixed_label, 11, 0, 1, 2)
+
+        # Diameter value
+        self.dia_entry = FCDoubleSpinner()
+        self.dia_entry.set_precision(self.decimals)
+        self.dia_entry.set_range(0.0000, 9999.9999)
+
+        self.dia_label = QtWidgets.QLabel('%s:' % _("Value"))
+        self.dia_label.setToolTip(
+            _("Fixed hole diameter.")
+        )
+
+        grid_lay.addWidget(self.dia_label, 12, 0)
+        grid_lay.addWidget(self.dia_entry, 12, 1)
+
+        # Annular Ring value
+        self.ring_label = QtWidgets.QLabel('<b>%s</b>' % _("Fixed Annular Ring"))
+        self.ring_label.setToolTip(
+            _("The size of annular ring.\n"
+              "The copper sliver between the hole exterior\n"
+              "and the margin of the copper pad.")
+        )
+        grid_lay.addWidget(self.ring_label, 13, 0, 1, 2)
+
+        # Circular Annular Ring Value
+        self.circular_ring_label = QtWidgets.QLabel('%s:' % _("Circular"))
+        self.circular_ring_label.setToolTip(
+            _("The size of annular ring for circular pads.")
+        )
+
+        self.circular_ring_entry = FCDoubleSpinner()
+        self.circular_ring_entry.set_precision(self.decimals)
+        self.circular_ring_entry.set_range(0.0000, 9999.9999)
+
+        grid_lay.addWidget(self.circular_ring_label, 14, 0)
+        grid_lay.addWidget(self.circular_ring_entry, 14, 1)
+
+        # Oblong Annular Ring Value
+        self.oblong_ring_label = QtWidgets.QLabel('%s:' % _("Oblong"))
+        self.oblong_ring_label.setToolTip(
+            _("The size of annular ring for oblong pads.")
+        )
+
+        self.oblong_ring_entry = FCDoubleSpinner()
+        self.oblong_ring_entry.set_precision(self.decimals)
+        self.oblong_ring_entry.set_range(0.0000, 9999.9999)
+
+        grid_lay.addWidget(self.oblong_ring_label, 15, 0)
+        grid_lay.addWidget(self.oblong_ring_entry, 15, 1)
+
+        # Square Annular Ring Value
+        self.square_ring_label = QtWidgets.QLabel('%s:' % _("Square"))
+        self.square_ring_label.setToolTip(
+            _("The size of annular ring for square pads.")
+        )
+
+        self.square_ring_entry = FCDoubleSpinner()
+        self.square_ring_entry.set_precision(self.decimals)
+        self.square_ring_entry.set_range(0.0000, 9999.9999)
+
+        grid_lay.addWidget(self.square_ring_label, 16, 0)
+        grid_lay.addWidget(self.square_ring_entry, 16, 1)
+
+        # Rectangular Annular Ring Value
+        self.rectangular_ring_label = QtWidgets.QLabel('%s:' % _("Rectangular"))
+        self.rectangular_ring_label.setToolTip(
+            _("The size of annular ring for rectangular pads.")
+        )
+
+        self.rectangular_ring_entry = FCDoubleSpinner()
+        self.rectangular_ring_entry.set_precision(self.decimals)
+        self.rectangular_ring_entry.set_range(0.0000, 9999.9999)
+
+        grid_lay.addWidget(self.rectangular_ring_label, 17, 0)
+        grid_lay.addWidget(self.rectangular_ring_entry, 17, 1)
+
+        # Others Annular Ring Value
+        self.other_ring_label = QtWidgets.QLabel('%s:' % _("Others"))
+        self.other_ring_label.setToolTip(
+            _("The size of annular ring for other pads.")
+        )
+
+        self.other_ring_entry = FCDoubleSpinner()
+        self.other_ring_entry.set_precision(self.decimals)
+        self.other_ring_entry.set_range(0.0000, 9999.9999)
+
+        grid_lay.addWidget(self.other_ring_label, 18, 0)
+        grid_lay.addWidget(self.other_ring_entry, 18, 1)
+
+        self.prop_label = QtWidgets.QLabel('<b>%s</b>' % _("Proportional Diameter"))
+        grid_lay.addWidget(self.prop_label, 19, 0, 1, 2)
+
+        # Factor value
+        self.factor_entry = FCDoubleSpinner(suffix='%')
+        self.factor_entry.set_precision(self.decimals)
+        self.factor_entry.set_range(0.0000, 100.0000)
+        self.factor_entry.setSingleStep(0.1)
+
+        self.factor_label = QtWidgets.QLabel('%s:' % _("Factor"))
+        self.factor_label.setToolTip(
+            _("Proportional Diameter.\n"
+              "The hole diameter will be a fraction of the pad size.")
+        )
+
+        grid_lay.addWidget(self.factor_label, 20, 0)
+        grid_lay.addWidget(self.factor_entry, 20, 1)
+
+        self.layout.addStretch()

appGUI/preferences/tools/Tools2FiducialsPrefGroupUI.py

@@ -0,0 +1,135 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import FCDoubleSpinner, RadioSet
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class Tools2FiducialsPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+
+        super(Tools2FiducialsPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("Fiducials Tool Options")))
+        self.decimals = decimals
+
+        # ## Grid Layout
+        grid_lay = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid_lay)
+        grid_lay.setColumnStretch(0, 0)
+        grid_lay.setColumnStretch(1, 1)
+
+        self.param_label = QtWidgets.QLabel('<b>%s:</b>' % _('Parameters'))
+        self.param_label.setToolTip(
+            _("Parameters used for this tool.")
+        )
+        grid_lay.addWidget(self.param_label, 0, 0, 1, 2)
+
+        # DIAMETER #
+        self.dia_label = QtWidgets.QLabel('%s:' % _("Size"))
+        self.dia_label.setToolTip(
+            _("This set the fiducial diameter if fiducial type is circular,\n"
+              "otherwise is the size of the fiducial.\n"
+              "The soldermask opening is double than that.")
+        )
+        self.dia_entry = FCDoubleSpinner()
+        self.dia_entry.set_range(1.0000, 3.0000)
+        self.dia_entry.set_precision(self.decimals)
+        self.dia_entry.setWrapping(True)
+        self.dia_entry.setSingleStep(0.1)
+
+        grid_lay.addWidget(self.dia_label, 1, 0)
+        grid_lay.addWidget(self.dia_entry, 1, 1)
+
+        # MARGIN #
+        self.margin_label = QtWidgets.QLabel('%s:' % _("Margin"))
+        self.margin_label.setToolTip(
+            _("Bounding box margin.")
+        )
+        self.margin_entry = FCDoubleSpinner()
+        self.margin_entry.set_range(-9999.9999, 9999.9999)
+        self.margin_entry.set_precision(self.decimals)
+        self.margin_entry.setSingleStep(0.1)
+
+        grid_lay.addWidget(self.margin_label, 2, 0)
+        grid_lay.addWidget(self.margin_entry, 2, 1)
+
+        # Mode #
+        self.mode_radio = RadioSet([
+            {'label': _('Auto'), 'value': 'auto'},
+            {"label": _("Manual"), "value": "manual"}
+        ], stretch=False)
+        self.mode_label = QtWidgets.QLabel(_("Mode:"))
+        self.mode_label.setToolTip(
+            _("- 'Auto' - automatic placement of fiducials in the corners of the bounding box.\n"
+              "- 'Manual' - manual placement of fiducials.")
+        )
+        grid_lay.addWidget(self.mode_label, 3, 0)
+        grid_lay.addWidget(self.mode_radio, 3, 1)
+
+        # Position for second fiducial #
+        self.pos_radio = RadioSet([
+            {'label': _('Up'), 'value': 'up'},
+            {"label": _("Down"), "value": "down"},
+            {"label": _("None"), "value": "no"}
+        ], stretch=False)
+        self.pos_label = QtWidgets.QLabel('%s:' % _("Second fiducial"))
+        self.pos_label.setToolTip(
+            _("The position for the second fiducial.\n"
+              "- 'Up' - the order is: bottom-left, top-left, top-right.\n"
+              "- 'Down' - the order is: bottom-left, bottom-right, top-right.\n"
+              "- 'None' - there is no second fiducial. The order is: bottom-left, top-right.")
+        )
+        grid_lay.addWidget(self.pos_label, 4, 0)
+        grid_lay.addWidget(self.pos_radio, 4, 1)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid_lay.addWidget(separator_line, 5, 0, 1, 2)
+
+        # Fiducial type #
+        self.fid_type_radio = RadioSet([
+            {'label': _('Circular'), 'value': 'circular'},
+            {"label": _("Cross"), "value": "cross"},
+            {"label": _("Chess"), "value": "chess"}
+        ], stretch=False)
+
+        self.fid_type_label = QtWidgets.QLabel('%s:' % _("Fiducial Type"))
+        self.fid_type_label.setToolTip(
+            _("The type of fiducial.\n"
+              "- 'Circular' - this is the regular fiducial.\n"
+              "- 'Cross' - cross lines fiducial.\n"
+              "- 'Chess' - chess pattern fiducial.")
+        )
+        grid_lay.addWidget(self.fid_type_label, 6, 0)
+        grid_lay.addWidget(self.fid_type_radio, 6, 1)
+
+        # Line Thickness #
+        self.line_thickness_label = QtWidgets.QLabel('%s:' % _("Line thickness"))
+        self.line_thickness_label.setToolTip(
+            _("Bounding box margin.")
+        )
+        self.line_thickness_entry = FCDoubleSpinner()
+        self.line_thickness_entry.set_range(0.00001, 9999.9999)
+        self.line_thickness_entry.set_precision(self.decimals)
+        self.line_thickness_entry.setSingleStep(0.1)
+
+        grid_lay.addWidget(self.line_thickness_label, 7, 0)
+        grid_lay.addWidget(self.line_thickness_entry, 7, 1)
+
+        self.layout.addStretch()

appGUI/preferences/tools/Tools2InvertPrefGroupUI.py

@@ -0,0 +1,75 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import FCDoubleSpinner, RadioSet
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class Tools2InvertPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+
+        super(Tools2InvertPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("Invert Gerber Tool Options")))
+        self.decimals = decimals
+
+        # ## Subtractor Tool Parameters
+        self.sublabel = QtWidgets.QLabel("<b>%s:</b>" % _("Parameters"))
+        self.sublabel.setToolTip(
+            _("A tool to invert Gerber geometry from positive to negative\n"
+              "and in revers.")
+        )
+        self.layout.addWidget(self.sublabel)
+
+        # Grid Layout
+        grid0 = QtWidgets.QGridLayout()
+        grid0.setColumnStretch(0, 0)
+        grid0.setColumnStretch(1, 1)
+        self.layout.addLayout(grid0)
+
+        # Margin
+        self.margin_label = QtWidgets.QLabel('%s:' % _('Margin'))
+        self.margin_label.setToolTip(
+            _("Distance by which to avoid\n"
+              "the edges of the Gerber object.")
+        )
+        self.margin_entry = FCDoubleSpinner()
+        self.margin_entry.set_precision(self.decimals)
+        self.margin_entry.set_range(0.0000, 9999.9999)
+        self.margin_entry.setObjectName(_("Margin"))
+
+        grid0.addWidget(self.margin_label, 2, 0, 1, 2)
+        grid0.addWidget(self.margin_entry, 3, 0, 1, 2)
+
+        self.join_label = QtWidgets.QLabel('%s:' % _("Lines Join Style"))
+        self.join_label.setToolTip(
+            _("The way that the lines in the object outline will be joined.\n"
+              "Can be:\n"
+              "- rounded -> an arc is added between two joining lines\n"
+              "- square -> the lines meet in 90 degrees angle\n"
+              "- bevel -> the lines are joined by a third line")
+        )
+        self.join_radio = RadioSet([
+            {'label': 'Rounded', 'value': 'r'},
+            {'label': 'Square', 'value': 's'},
+            {'label': 'Bevel', 'value': 'b'}
+        ], orientation='vertical', stretch=False)
+
+        grid0.addWidget(self.join_label, 5, 0, 1, 2)
+        grid0.addWidget(self.join_radio, 7, 0, 1, 2)
+
+        self.layout.addStretch()

appGUI/preferences/tools/Tools2OptimalPrefGroupUI.py

@@ -0,0 +1,56 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import FCSpinner
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class Tools2OptimalPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+
+        super(Tools2OptimalPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("Optimal Tool Options")))
+        self.decimals = decimals
+
+        # ## Parameters
+        self.optlabel = QtWidgets.QLabel("<b>%s:</b>" % _("Parameters"))
+        self.optlabel.setToolTip(
+            _("A tool to find the minimum distance between\n"
+              "every two Gerber geometric elements")
+        )
+        self.layout.addWidget(self.optlabel)
+
+        grid0 = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid0)
+        grid0.setColumnStretch(0, 0)
+        grid0.setColumnStretch(1, 1)
+
+        self.precision_sp = FCSpinner()
+        self.precision_sp.set_range(2, 10)
+        self.precision_sp.set_step(1)
+        self.precision_sp.setWrapping(True)
+
+        self.precision_lbl = QtWidgets.QLabel('%s:' % _("Precision"))
+        self.precision_lbl.setToolTip(
+            _("Number of decimals for the distances and coordinates in this tool.")
+        )
+
+        grid0.addWidget(self.precision_lbl, 0, 0)
+        grid0.addWidget(self.precision_sp, 0, 1)
+
+        self.layout.addStretch()

appGUI/preferences/tools/Tools2PreferencesUI.py

@@ -0,0 +1,89 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.preferences.tools.Tools2InvertPrefGroupUI import Tools2InvertPrefGroupUI
+from appGUI.preferences.tools.Tools2PunchGerberPrefGroupUI import Tools2PunchGerberPrefGroupUI
+from appGUI.preferences.tools.Tools2EDrillsPrefGroupUI import Tools2EDrillsPrefGroupUI
+from appGUI.preferences.tools.Tools2CalPrefGroupUI import Tools2CalPrefGroupUI
+from appGUI.preferences.tools.Tools2FiducialsPrefGroupUI import Tools2FiducialsPrefGroupUI
+from appGUI.preferences.tools.Tools2CThievingPrefGroupUI import Tools2CThievingPrefGroupUI
+from appGUI.preferences.tools.Tools2QRCodePrefGroupUI import Tools2QRCodePrefGroupUI
+from appGUI.preferences.tools.Tools2OptimalPrefGroupUI import Tools2OptimalPrefGroupUI
+from appGUI.preferences.tools.Tools2RulesCheckPrefGroupUI import Tools2RulesCheckPrefGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class Tools2PreferencesUI(QtWidgets.QWidget):
+
+    def __init__(self, decimals, parent=None):
+        QtWidgets.QWidget.__init__(self, parent=parent)
+        self.layout = QtWidgets.QHBoxLayout()
+        self.setLayout(self.layout)
+        self.decimals = decimals
+
+        self.tools2_checkrules_group = Tools2RulesCheckPrefGroupUI(decimals=self.decimals)
+        self.tools2_checkrules_group.setMinimumWidth(220)
+
+        self.tools2_optimal_group = Tools2OptimalPrefGroupUI(decimals=self.decimals)
+        self.tools2_optimal_group.setMinimumWidth(220)
+
+        self.tools2_qrcode_group = Tools2QRCodePrefGroupUI(decimals=self.decimals)
+        self.tools2_qrcode_group.setMinimumWidth(220)
+
+        self.tools2_cfill_group = Tools2CThievingPrefGroupUI(decimals=self.decimals)
+        self.tools2_cfill_group.setMinimumWidth(220)
+
+        self.tools2_fiducials_group = Tools2FiducialsPrefGroupUI(decimals=self.decimals)
+        self.tools2_fiducials_group.setMinimumWidth(220)
+
+        self.tools2_cal_group = Tools2CalPrefGroupUI(decimals=self.decimals)
+        self.tools2_cal_group.setMinimumWidth(220)
+
+        self.tools2_edrills_group = Tools2EDrillsPrefGroupUI(decimals=self.decimals)
+        self.tools2_edrills_group.setMinimumWidth(220)
+
+        self.tools2_punch_group = Tools2PunchGerberPrefGroupUI(decimals=self.decimals)
+        self.tools2_punch_group.setMinimumWidth(220)
+
+        self.tools2_invert_group = Tools2InvertPrefGroupUI(decimals=self.decimals)
+        self.tools2_invert_group.setMinimumWidth(220)
+
+        self.vlay = QtWidgets.QVBoxLayout()
+        self.vlay.addWidget(self.tools2_checkrules_group)
+        self.vlay.addWidget(self.tools2_optimal_group)
+
+        self.vlay1 = QtWidgets.QVBoxLayout()
+        self.vlay1.addWidget(self.tools2_qrcode_group)
+        self.vlay1.addWidget(self.tools2_fiducials_group)
+
+        self.vlay2 = QtWidgets.QVBoxLayout()
+        self.vlay2.addWidget(self.tools2_cfill_group)
+
+        self.vlay3 = QtWidgets.QVBoxLayout()
+        self.vlay3.addWidget(self.tools2_cal_group)
+        self.vlay3.addWidget(self.tools2_edrills_group)
+
+        self.vlay4 = QtWidgets.QVBoxLayout()
+        self.vlay4.addWidget(self.tools2_punch_group)
+        self.vlay4.addWidget(self.tools2_invert_group)
+
+        self.layout.addLayout(self.vlay)
+        self.layout.addLayout(self.vlay1)
+        self.layout.addLayout(self.vlay2)
+        self.layout.addLayout(self.vlay3)
+        self.layout.addLayout(self.vlay4)
+
+        self.layout.addStretch()

appGUI/preferences/tools/Tools2PunchGerberPrefGroupUI.py

@@ -0,0 +1,233 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import FCCheckBox, RadioSet, FCDoubleSpinner
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class Tools2PunchGerberPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+
+        super(Tools2PunchGerberPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("Punch Gerber Options")))
+        self.decimals = decimals
+
+        # ## Grid Layout
+        grid_lay = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid_lay)
+        grid_lay.setColumnStretch(0, 0)
+        grid_lay.setColumnStretch(1, 1)
+
+        self.param_label = QtWidgets.QLabel('<b>%s:</b>' % _('Parameters'))
+        self.param_label.setToolTip(
+            _("Parameters used for this tool.")
+        )
+        grid_lay.addWidget(self.param_label, 0, 0, 1, 2)
+
+        self.padt_label = QtWidgets.QLabel("<b>%s:</b>" % _("Processed Pads Type"))
+        self.padt_label.setToolTip(
+            _("The type of pads shape to be processed.\n"
+              "If the PCB has many SMD pads with rectangular pads,\n"
+              "disable the Rectangular aperture.")
+        )
+
+        grid_lay.addWidget(self.padt_label, 2, 0, 1, 2)
+
+        # Circular Aperture Selection
+        self.circular_cb = FCCheckBox('%s' % _("Circular"))
+        self.circular_cb.setToolTip(
+            _("Process Circular Pads.")
+        )
+
+        grid_lay.addWidget(self.circular_cb, 3, 0, 1, 2)
+
+        # Oblong Aperture Selection
+        self.oblong_cb = FCCheckBox('%s' % _("Oblong"))
+        self.oblong_cb.setToolTip(
+            _("Process Oblong Pads.")
+        )
+
+        grid_lay.addWidget(self.oblong_cb, 4, 0, 1, 2)
+
+        # Square Aperture Selection
+        self.square_cb = FCCheckBox('%s' % _("Square"))
+        self.square_cb.setToolTip(
+            _("Process Square Pads.")
+        )
+
+        grid_lay.addWidget(self.square_cb, 5, 0, 1, 2)
+
+        # Rectangular Aperture Selection
+        self.rectangular_cb = FCCheckBox('%s' % _("Rectangular"))
+        self.rectangular_cb.setToolTip(
+            _("Process Rectangular Pads.")
+        )
+
+        grid_lay.addWidget(self.rectangular_cb, 6, 0, 1, 2)
+
+        # Others type of Apertures Selection
+        self.other_cb = FCCheckBox('%s' % _("Others"))
+        self.other_cb.setToolTip(
+            _("Process pads not in the categories above.")
+        )
+
+        grid_lay.addWidget(self.other_cb, 7, 0, 1, 2)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid_lay.addWidget(separator_line, 8, 0, 1, 2)
+
+        # ## Axis
+        self.hole_size_radio = RadioSet(
+            [
+                {'label': _("Excellon"), 'value': 'exc'},
+                {'label': _("Fixed Diameter"), 'value': 'fixed'},
+                {'label': _("Fixed Annular Ring"), 'value': 'ring'},
+                {'label': _("Proportional"), 'value': 'prop'}
+            ],
+            orientation='vertical',
+            stretch=False)
+        self.hole_size_label = QtWidgets.QLabel('<b>%s:</b>' % _("Method"))
+        self.hole_size_label.setToolTip(
+            _("The punch hole source can be:\n"
+              "- Excellon Object-> the Excellon object drills center will serve as reference.\n"
+              "- Fixed Diameter -> will try to use the pads center as reference adding fixed diameter holes.\n"
+              "- Fixed Annular Ring -> will try to keep a set annular ring.\n"
+              "- Proportional -> will make a Gerber punch hole having the diameter a percentage of the pad diameter.")
+        )
+        grid_lay.addWidget(self.hole_size_label, 9, 0)
+        grid_lay.addWidget(self.hole_size_radio, 9, 1)
+
+        # grid_lay1.addWidget(QtWidgets.QLabel(''))
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid_lay.addWidget(separator_line, 10, 0, 1, 2)
+
+        # Annular Ring
+        self.fixed_label = QtWidgets.QLabel('<b>%s</b>' % _("Fixed Diameter"))
+        grid_lay.addWidget(self.fixed_label, 11, 0, 1, 2)
+
+        # Diameter value
+        self.dia_entry = FCDoubleSpinner()
+        self.dia_entry.set_precision(self.decimals)
+        self.dia_entry.set_range(0.0000, 9999.9999)
+
+        self.dia_label = QtWidgets.QLabel('%s:' % _("Value"))
+        self.dia_label.setToolTip(
+            _("Fixed hole diameter.")
+        )
+
+        grid_lay.addWidget(self.dia_label, 12, 0)
+        grid_lay.addWidget(self.dia_entry, 12, 1)
+
+        # Annular Ring value
+        self.ring_label = QtWidgets.QLabel('<b>%s</b>' % _("Fixed Annular Ring"))
+        self.ring_label.setToolTip(
+            _("The size of annular ring.\n"
+              "The copper sliver between the hole exterior\n"
+              "and the margin of the copper pad.")
+        )
+        grid_lay.addWidget(self.ring_label, 13, 0, 1, 2)
+
+        # Circular Annular Ring Value
+        self.circular_ring_label = QtWidgets.QLabel('%s:' % _("Circular"))
+        self.circular_ring_label.setToolTip(
+            _("The size of annular ring for circular pads.")
+        )
+
+        self.circular_ring_entry = FCDoubleSpinner()
+        self.circular_ring_entry.set_precision(self.decimals)
+        self.circular_ring_entry.set_range(0.0000, 9999.9999)
+
+        grid_lay.addWidget(self.circular_ring_label, 14, 0)
+        grid_lay.addWidget(self.circular_ring_entry, 14, 1)
+
+        # Oblong Annular Ring Value
+        self.oblong_ring_label = QtWidgets.QLabel('%s:' % _("Oblong"))
+        self.oblong_ring_label.setToolTip(
+            _("The size of annular ring for oblong pads.")
+        )
+
+        self.oblong_ring_entry = FCDoubleSpinner()
+        self.oblong_ring_entry.set_precision(self.decimals)
+        self.oblong_ring_entry.set_range(0.0000, 9999.9999)
+
+        grid_lay.addWidget(self.oblong_ring_label, 15, 0)
+        grid_lay.addWidget(self.oblong_ring_entry, 15, 1)
+
+        # Square Annular Ring Value
+        self.square_ring_label = QtWidgets.QLabel('%s:' % _("Square"))
+        self.square_ring_label.setToolTip(
+            _("The size of annular ring for square pads.")
+        )
+
+        self.square_ring_entry = FCDoubleSpinner()
+        self.square_ring_entry.set_precision(self.decimals)
+        self.square_ring_entry.set_range(0.0000, 9999.9999)
+
+        grid_lay.addWidget(self.square_ring_label, 16, 0)
+        grid_lay.addWidget(self.square_ring_entry, 16, 1)
+
+        # Rectangular Annular Ring Value
+        self.rectangular_ring_label = QtWidgets.QLabel('%s:' % _("Rectangular"))
+        self.rectangular_ring_label.setToolTip(
+            _("The size of annular ring for rectangular pads.")
+        )
+
+        self.rectangular_ring_entry = FCDoubleSpinner()
+        self.rectangular_ring_entry.set_precision(self.decimals)
+        self.rectangular_ring_entry.set_range(0.0000, 9999.9999)
+
+        grid_lay.addWidget(self.rectangular_ring_label, 17, 0)
+        grid_lay.addWidget(self.rectangular_ring_entry, 17, 1)
+
+        # Others Annular Ring Value
+        self.other_ring_label = QtWidgets.QLabel('%s:' % _("Others"))
+        self.other_ring_label.setToolTip(
+            _("The size of annular ring for other pads.")
+        )
+
+        self.other_ring_entry = FCDoubleSpinner()
+        self.other_ring_entry.set_precision(self.decimals)
+        self.other_ring_entry.set_range(0.0000, 9999.9999)
+
+        grid_lay.addWidget(self.other_ring_label, 18, 0)
+        grid_lay.addWidget(self.other_ring_entry, 18, 1)
+
+        self.prop_label = QtWidgets.QLabel('<b>%s</b>' % _("Proportional Diameter"))
+        grid_lay.addWidget(self.prop_label, 19, 0, 1, 2)
+
+        # Factor value
+        self.factor_entry = FCDoubleSpinner(suffix='%')
+        self.factor_entry.set_precision(self.decimals)
+        self.factor_entry.set_range(0.0000, 100.0000)
+        self.factor_entry.setSingleStep(0.1)
+
+        self.factor_label = QtWidgets.QLabel('%s:' % _("Factor"))
+        self.factor_label.setToolTip(
+            _("Proportional Diameter.\n"
+              "The hole diameter will be a fraction of the pad size.")
+        )
+
+        grid_lay.addWidget(self.factor_label, 20, 0)
+        grid_lay.addWidget(self.factor_entry, 20, 1)
+
+        self.layout.addStretch()

appGUI/preferences/tools/Tools2QRCodePrefGroupUI.py

@@ -0,0 +1,195 @@
+from PyQt5 import QtWidgets, QtCore, QtGui
+from PyQt5.QtCore import Qt, QSettings
+
+from appGUI.GUIElements import FCSpinner, RadioSet, FCTextArea, FCEntry, FCColorEntry
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class Tools2QRCodePrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+
+        super(Tools2QRCodePrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("QRCode Tool Options")))
+        self.decimals = decimals
+
+        # ## Parameters
+        self.qrlabel = QtWidgets.QLabel("<b>%s:</b>" % _("Parameters"))
+        self.qrlabel.setToolTip(
+            _("A tool to create a QRCode that can be inserted\n"
+              "into a selected Gerber file, or it can be exported as a file.")
+        )
+        self.layout.addWidget(self.qrlabel)
+
+        # ## Grid Layout
+        grid_lay = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid_lay)
+        grid_lay.setColumnStretch(0, 0)
+        grid_lay.setColumnStretch(1, 1)
+
+        # VERSION #
+        self.version_label = QtWidgets.QLabel('%s:' % _("Version"))
+        self.version_label.setToolTip(
+            _("QRCode version can have values from 1 (21x21 boxes)\n"
+              "to 40 (177x177 boxes).")
+        )
+        self.version_entry = FCSpinner()
+        self.version_entry.set_range(1, 40)
+        self.version_entry.setWrapping(True)
+
+        grid_lay.addWidget(self.version_label, 1, 0)
+        grid_lay.addWidget(self.version_entry, 1, 1)
+
+        # ERROR CORRECTION #
+        self.error_label = QtWidgets.QLabel('%s:' % _("Error correction"))
+        self.error_label.setToolTip(
+            _("Parameter that controls the error correction used for the QR Code.\n"
+              "L = maximum 7%% errors can be corrected\n"
+              "M = maximum 15%% errors can be corrected\n"
+              "Q = maximum 25%% errors can be corrected\n"
+              "H = maximum 30%% errors can be corrected.")
+        )
+        self.error_radio = RadioSet([{'label': 'L', 'value': 'L'},
+                                     {'label': 'M', 'value': 'M'},
+                                     {'label': 'Q', 'value': 'Q'},
+                                     {'label': 'H', 'value': 'H'}])
+        self.error_radio.setToolTip(
+            _("Parameter that controls the error correction used for the QR Code.\n"
+              "L = maximum 7%% errors can be corrected\n"
+              "M = maximum 15%% errors can be corrected\n"
+              "Q = maximum 25%% errors can be corrected\n"
+              "H = maximum 30%% errors can be corrected.")
+        )
+        grid_lay.addWidget(self.error_label, 2, 0)
+        grid_lay.addWidget(self.error_radio, 2, 1)
+
+        # BOX SIZE #
+        self.bsize_label = QtWidgets.QLabel('%s:' % _("Box Size"))
+        self.bsize_label.setToolTip(
+            _("Box size control the overall size of the QRcode\n"
+              "by adjusting the size of each box in the code.")
+        )
+        self.bsize_entry = FCSpinner()
+        self.bsize_entry.set_range(1, 9999)
+        self.bsize_entry.setWrapping(True)
+
+        grid_lay.addWidget(self.bsize_label, 3, 0)
+        grid_lay.addWidget(self.bsize_entry, 3, 1)
+
+        # BORDER SIZE #
+        self.border_size_label = QtWidgets.QLabel('%s:' % _("Border Size"))
+        self.border_size_label.setToolTip(
+            _("Size of the QRCode border. How many boxes thick is the border.\n"
+              "Default value is 4. The width of the clearance around the QRCode.")
+        )
+        self.border_size_entry = FCSpinner()
+        self.border_size_entry.set_range(1, 9999)
+        self.border_size_entry.setWrapping(True)
+
+        grid_lay.addWidget(self.border_size_label, 4, 0)
+        grid_lay.addWidget(self.border_size_entry, 4, 1)
+
+        # Text box
+        self.text_label = QtWidgets.QLabel('%s:' % _("QRCode Data"))
+        self.text_label.setToolTip(
+            _("QRCode Data. Alphanumeric text to be encoded in the QRCode.")
+        )
+        self.text_data = FCTextArea()
+        self.text_data.setPlaceholderText(
+            _("Add here the text to be included in the QRCode...")
+        )
+        grid_lay.addWidget(self.text_label, 5, 0)
+        grid_lay.addWidget(self.text_data, 6, 0, 1, 2)
+
+        # POLARITY CHOICE #
+        self.pol_label = QtWidgets.QLabel('%s:' % _("Polarity"))
+        self.pol_label.setToolTip(
+            _("Choose the polarity of the QRCode.\n"
+              "It can be drawn in a negative way (squares are clear)\n"
+              "or in a positive way (squares are opaque).")
+        )
+        self.pol_radio = RadioSet([{'label': _('Negative'), 'value': 'neg'},
+                                   {'label': _('Positive'), 'value': 'pos'}])
+        self.pol_radio.setToolTip(
+            _("Choose the type of QRCode to be created.\n"
+              "If added on a Silkscreen Gerber file the QRCode may\n"
+              "be added as positive. If it is added to a Copper Gerber\n"
+              "file then perhaps the QRCode can be added as negative.")
+        )
+        grid_lay.addWidget(self.pol_label, 7, 0)
+        grid_lay.addWidget(self.pol_radio, 7, 1)
+
+        # BOUNDING BOX TYPE #
+        self.bb_label = QtWidgets.QLabel('%s:' % _("Bounding Box"))
+        self.bb_label.setToolTip(
+            _("The bounding box, meaning the empty space that surrounds\n"
+              "the QRCode geometry, can have a rounded or a square shape.")
+        )
+        self.bb_radio = RadioSet([{'label': _('Rounded'), 'value': 'r'},
+                                  {'label': _('Square'), 'value': 's'}])
+        self.bb_radio.setToolTip(
+            _("The bounding box, meaning the empty space that surrounds\n"
+              "the QRCode geometry, can have a rounded or a square shape.")
+        )
+        grid_lay.addWidget(self.bb_label, 8, 0)
+        grid_lay.addWidget(self.bb_radio, 8, 1)
+
+        # FILL COLOR #
+        self.fill_color_label = QtWidgets.QLabel('%s:' % _('Fill Color'))
+        self.fill_color_label.setToolTip(
+            _("Set the QRCode fill color (squares color).")
+        )
+        self.fill_color_entry = FCColorEntry()
+
+        grid_lay.addWidget(self.fill_color_label, 9, 0)
+        grid_lay.addWidget(self.fill_color_entry, 9, 1)
+
+        # BACK COLOR #
+        self.back_color_label = QtWidgets.QLabel('%s:' % _('Back Color'))
+        self.back_color_label.setToolTip(
+            _("Set the QRCode background color.")
+        )
+        self.back_color_entry = FCColorEntry()
+
+        grid_lay.addWidget(self.back_color_label, 10, 0)
+        grid_lay.addWidget(self.back_color_entry, 10, 1)
+
+        # Selection Limit
+        self.sel_limit_label = QtWidgets.QLabel('%s:' % _("Selection limit"))
+        self.sel_limit_label.setToolTip(
+            _("Set the number of selected geometry\n"
+              "items above which the utility geometry\n"
+              "becomes just a selection rectangle.\n"
+              "Increases the performance when moving a\n"
+              "large number of geometric elements.")
+        )
+        self.sel_limit_entry = FCSpinner()
+        self.sel_limit_entry.set_range(0, 9999)
+
+        grid_lay.addWidget(self.sel_limit_label, 11, 0)
+        grid_lay.addWidget(self.sel_limit_entry, 11, 1)
+        # self.layout.addStretch()
+
+        # QRCode Tool
+        self.fill_color_entry.editingFinished.connect(self.on_qrcode_fill_color_entry)
+        self.back_color_entry.editingFinished.connect(self.on_qrcode_back_color_entry)
+
+    def on_qrcode_fill_color_entry(self):
+        self.app.defaults['tools_qrcode_fill_color'] = self.fill_color_entry.get_value()
+
+    def on_qrcode_back_color_entry(self):
+        self.app.defaults['tools_qrcode_back_color'] = self.back_color_entry.get_value()

appGUI/preferences/tools/Tools2RulesCheckPrefGroupUI.py

@@ -0,0 +1,242 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import FCCheckBox, FCDoubleSpinner
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class Tools2RulesCheckPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+
+        super(Tools2RulesCheckPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("Check Rules Tool Options")))
+        self.decimals = decimals
+
+        self.crlabel = QtWidgets.QLabel("<b>%s:</b>" % _("Parameters"))
+        self.crlabel.setToolTip(
+            _("A tool to check if Gerber files are within a set\n"
+              "of Manufacturing Rules.")
+        )
+        self.layout.addWidget(self.crlabel)
+
+        # Form Layout
+        self.form_layout_1 = QtWidgets.QFormLayout()
+        self.layout.addLayout(self.form_layout_1)
+
+        # Trace size
+        self.trace_size_cb = FCCheckBox('%s:' % _("Trace Size"))
+        self.trace_size_cb.setToolTip(
+            _("This checks if the minimum size for traces is met.")
+        )
+        self.form_layout_1.addRow(self.trace_size_cb)
+
+        # Trace size value
+        self.trace_size_entry = FCDoubleSpinner()
+        self.trace_size_entry.set_range(0.00001, 999.99999)
+        self.trace_size_entry.set_precision(self.decimals)
+        self.trace_size_entry.setSingleStep(0.1)
+
+        self.trace_size_lbl = QtWidgets.QLabel('%s:' % _("Min value"))
+        self.trace_size_lbl.setToolTip(
+            _("Minimum acceptable trace size.")
+        )
+        self.form_layout_1.addRow(self.trace_size_lbl, self.trace_size_entry)
+
+        # Copper2copper clearance
+        self.clearance_copper2copper_cb = FCCheckBox('%s:' % _("Copper to Copper clearance"))
+        self.clearance_copper2copper_cb.setToolTip(
+            _("This checks if the minimum clearance between copper\n"
+              "features is met.")
+        )
+        self.form_layout_1.addRow(self.clearance_copper2copper_cb)
+
+        # Copper2copper clearance value
+        self.clearance_copper2copper_entry = FCDoubleSpinner()
+        self.clearance_copper2copper_entry.set_range(0.00001, 999.99999)
+        self.clearance_copper2copper_entry.set_precision(self.decimals)
+        self.clearance_copper2copper_entry.setSingleStep(0.1)
+
+        self.clearance_copper2copper_lbl = QtWidgets.QLabel('%s:' % _("Min value"))
+        self.clearance_copper2copper_lbl.setToolTip(
+            _("Minimum acceptable clearance value.")
+        )
+        self.form_layout_1.addRow(self.clearance_copper2copper_lbl, self.clearance_copper2copper_entry)
+
+        # Copper2outline clearance
+        self.clearance_copper2ol_cb = FCCheckBox('%s:' % _("Copper to Outline clearance"))
+        self.clearance_copper2ol_cb.setToolTip(
+            _("This checks if the minimum clearance between copper\n"
+              "features and the outline is met.")
+        )
+        self.form_layout_1.addRow(self.clearance_copper2ol_cb)
+
+        # Copper2outline clearance value
+        self.clearance_copper2ol_entry = FCDoubleSpinner()
+        self.clearance_copper2ol_entry.set_range(0.00001, 999.99999)
+        self.clearance_copper2ol_entry.set_precision(self.decimals)
+        self.clearance_copper2ol_entry.setSingleStep(0.1)
+
+        self.clearance_copper2ol_lbl = QtWidgets.QLabel('%s:' % _("Min value"))
+        self.clearance_copper2ol_lbl.setToolTip(
+            _("Minimum acceptable clearance value.")
+        )
+        self.form_layout_1.addRow(self.clearance_copper2ol_lbl, self.clearance_copper2ol_entry)
+
+        # Silkscreen2silkscreen clearance
+        self.clearance_silk2silk_cb = FCCheckBox('%s:' % _("Silk to Silk Clearance"))
+        self.clearance_silk2silk_cb.setToolTip(
+            _("This checks if the minimum clearance between silkscreen\n"
+              "features and silkscreen features is met.")
+        )
+        self.form_layout_1.addRow(self.clearance_silk2silk_cb)
+
+        # Copper2silkscreen clearance value
+        self.clearance_silk2silk_entry = FCDoubleSpinner()
+        self.clearance_silk2silk_entry.set_range(0.00001, 999.99999)
+        self.clearance_silk2silk_entry.set_precision(self.decimals)
+        self.clearance_silk2silk_entry.setSingleStep(0.1)
+
+        self.clearance_silk2silk_lbl = QtWidgets.QLabel('%s:' % _("Min value"))
+        self.clearance_silk2silk_lbl.setToolTip(
+            _("Minimum acceptable clearance value.")
+        )
+        self.form_layout_1.addRow(self.clearance_silk2silk_lbl, self.clearance_silk2silk_entry)
+
+        # Silkscreen2soldermask clearance
+        self.clearance_silk2sm_cb = FCCheckBox('%s:' % _("Silk to Solder Mask Clearance"))
+        self.clearance_silk2sm_cb.setToolTip(
+            _("This checks if the minimum clearance between silkscreen\n"
+              "features and soldermask features is met.")
+        )
+        self.form_layout_1.addRow(self.clearance_silk2sm_cb)
+
+        # Silkscreen2soldermask clearance value
+        self.clearance_silk2sm_entry = FCDoubleSpinner()
+        self.clearance_silk2sm_entry.set_range(0.00001, 999.99999)
+        self.clearance_silk2sm_entry.set_precision(self.decimals)
+        self.clearance_silk2sm_entry.setSingleStep(0.1)
+
+        self.clearance_silk2sm_lbl = QtWidgets.QLabel('%s:' % _("Min value"))
+        self.clearance_silk2sm_lbl.setToolTip(
+            _("Minimum acceptable clearance value.")
+        )
+        self.form_layout_1.addRow(self.clearance_silk2sm_lbl, self.clearance_silk2sm_entry)
+
+        # Silk2outline clearance
+        self.clearance_silk2ol_cb = FCCheckBox('%s:' % _("Silk to Outline Clearance"))
+        self.clearance_silk2ol_cb.setToolTip(
+            _("This checks if the minimum clearance between silk\n"
+              "features and the outline is met.")
+        )
+        self.form_layout_1.addRow(self.clearance_silk2ol_cb)
+
+        # Silk2outline clearance value
+        self.clearance_silk2ol_entry = FCDoubleSpinner()
+        self.clearance_silk2ol_entry.set_range(0.00001, 999.99999)
+        self.clearance_silk2ol_entry.set_precision(self.decimals)
+        self.clearance_silk2ol_entry.setSingleStep(0.1)
+
+        self.clearance_silk2ol_lbl = QtWidgets.QLabel('%s:' % _("Min value"))
+        self.clearance_silk2ol_lbl.setToolTip(
+            _("Minimum acceptable clearance value.")
+        )
+        self.form_layout_1.addRow(self.clearance_silk2ol_lbl, self.clearance_silk2ol_entry)
+
+        # Soldermask2soldermask clearance
+        self.clearance_sm2sm_cb = FCCheckBox('%s:' % _("Minimum Solder Mask Sliver"))
+        self.clearance_sm2sm_cb.setToolTip(
+            _("This checks if the minimum clearance between soldermask\n"
+              "features and soldermask features is met.")
+        )
+        self.form_layout_1.addRow(self.clearance_sm2sm_cb)
+
+        # Soldermask2soldermask clearance value
+        self.clearance_sm2sm_entry = FCDoubleSpinner()
+        self.clearance_sm2sm_entry.set_range(0.00001, 999.99999)
+        self.clearance_sm2sm_entry.set_precision(self.decimals)
+        self.clearance_sm2sm_entry.setSingleStep(0.1)
+
+        self.clearance_sm2sm_lbl = QtWidgets.QLabel('%s:' % _("Min value"))
+        self.clearance_sm2sm_lbl.setToolTip(
+            _("Minimum acceptable clearance value.")
+        )
+        self.form_layout_1.addRow(self.clearance_sm2sm_lbl, self.clearance_sm2sm_entry)
+
+        # Ring integrity check
+        self.ring_integrity_cb = FCCheckBox('%s:' % _("Minimum Annular Ring"))
+        self.ring_integrity_cb.setToolTip(
+            _("This checks if the minimum copper ring left by drilling\n"
+              "a hole into a pad is met.")
+        )
+        self.form_layout_1.addRow(self.ring_integrity_cb)
+
+        # Ring integrity value
+        self.ring_integrity_entry = FCDoubleSpinner()
+        self.ring_integrity_entry.set_range(0.00001, 999.99999)
+        self.ring_integrity_entry.set_precision(self.decimals)
+        self.ring_integrity_entry.setSingleStep(0.1)
+
+        self.ring_integrity_lbl = QtWidgets.QLabel('%s:' % _("Min value"))
+        self.ring_integrity_lbl.setToolTip(
+            _("Minimum acceptable ring value.")
+        )
+        self.form_layout_1.addRow(self.ring_integrity_lbl, self.ring_integrity_entry)
+
+        self.form_layout_1.addRow(QtWidgets.QLabel(""))
+
+        # Hole2Hole clearance
+        self.clearance_d2d_cb = FCCheckBox('%s:' % _("Hole to Hole Clearance"))
+        self.clearance_d2d_cb.setToolTip(
+            _("This checks if the minimum clearance between a drill hole\n"
+              "and another drill hole is met.")
+        )
+        self.form_layout_1.addRow(self.clearance_d2d_cb)
+
+        # Hole2Hole clearance value
+        self.clearance_d2d_entry = FCDoubleSpinner()
+        self.clearance_d2d_entry.set_range(0.00001, 999.99999)
+        self.clearance_d2d_entry.set_precision(self.decimals)
+        self.clearance_d2d_entry.setSingleStep(0.1)
+
+        self.clearance_d2d_lbl = QtWidgets.QLabel('%s:' % _("Min value"))
+        self.clearance_d2d_lbl.setToolTip(
+            _("Minimum acceptable drill size.")
+        )
+        self.form_layout_1.addRow(self.clearance_d2d_lbl, self.clearance_d2d_entry)
+
+        # Drill holes size check
+        self.drill_size_cb = FCCheckBox('%s:' % _("Hole Size"))
+        self.drill_size_cb.setToolTip(
+            _("This checks if the drill holes\n"
+              "sizes are above the threshold.")
+        )
+        self.form_layout_1.addRow(self.drill_size_cb)
+
+        # Drile holes value
+        self.drill_size_entry = FCDoubleSpinner()
+        self.drill_size_entry.set_range(0.00001, 999.99999)
+        self.drill_size_entry.set_precision(self.decimals)
+        self.drill_size_entry.setSingleStep(0.1)
+
+        self.drill_size_lbl = QtWidgets.QLabel('%s:' % _("Min value"))
+        self.drill_size_lbl.setToolTip(
+            _("Minimum acceptable clearance value.")
+        )
+        self.form_layout_1.addRow(self.drill_size_lbl, self.drill_size_entry)
+
+        self.layout.addStretch()

appGUI/preferences/tools/Tools2sidedPrefGroupUI.py

@@ -0,0 +1,92 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import FCDoubleSpinner, RadioSet
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class Tools2sidedPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+        # OptionsGroupUI.__init__(self, "2sided Tool Options", parent=parent)
+        super(Tools2sidedPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("2Sided Tool Options")))
+        self.decimals = decimals
+
+        # ## Board cuttout
+        self.dblsided_label = QtWidgets.QLabel("<b>%s:</b>" % _("Parameters"))
+        self.dblsided_label.setToolTip(
+            _("A tool to help in creating a double sided\n"
+              "PCB using alignment holes.")
+        )
+        self.layout.addWidget(self.dblsided_label)
+
+        grid0 = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid0)
+
+        # ## Drill diameter for alignment holes
+        self.drill_dia_entry = FCDoubleSpinner()
+        self.drill_dia_entry.set_range(0.000001, 9999.9999)
+        self.drill_dia_entry.set_precision(self.decimals)
+        self.drill_dia_entry.setSingleStep(0.1)
+
+        self.dd_label = QtWidgets.QLabel('%s:' % _("Drill dia"))
+        self.dd_label.setToolTip(
+            _("Diameter of the drill for the "
+              "alignment holes.")
+        )
+        grid0.addWidget(self.dd_label, 0, 0)
+        grid0.addWidget(self.drill_dia_entry, 0, 1)
+
+        # ## Alignment Axis
+        self.align_ax_label = QtWidgets.QLabel('%s:' % _("Align Axis"))
+        self.align_ax_label.setToolTip(
+            _("Mirror vertically (X) or horizontally (Y).")
+        )
+        self.align_axis_radio = RadioSet([{'label': 'X', 'value': 'X'},
+                                          {'label': 'Y', 'value': 'Y'}])
+
+        grid0.addWidget(self.align_ax_label, 1, 0)
+        grid0.addWidget(self.align_axis_radio, 1, 1)
+
+        # ## Axis
+        self.mirror_axis_radio = RadioSet([{'label': 'X', 'value': 'X'},
+                                           {'label': 'Y', 'value': 'Y'}])
+        self.mirax_label = QtWidgets.QLabel(_("Mirror Axis:"))
+        self.mirax_label.setToolTip(
+            _("Mirror vertically (X) or horizontally (Y).")
+        )
+
+        self.empty_lb1 = QtWidgets.QLabel("")
+        grid0.addWidget(self.empty_lb1, 2, 0)
+        grid0.addWidget(self.mirax_label, 3, 0)
+        grid0.addWidget(self.mirror_axis_radio, 3, 1)
+
+        # ## Axis Location
+        self.axis_location_radio = RadioSet([{'label': _('Point'), 'value': 'point'},
+                                             {'label': _('Box'), 'value': 'box'}])
+        self.axloc_label = QtWidgets.QLabel('%s:' % _("Axis Ref"))
+        self.axloc_label.setToolTip(
+            _("The axis should pass through a <b>point</b> or cut\n "
+              "a specified <b>box</b> (in a FlatCAM object) through \n"
+              "the center.")
+        )
+
+        grid0.addWidget(self.axloc_label, 4, 0)
+        grid0.addWidget(self.axis_location_radio, 4, 1)
+
+        self.layout.addStretch()

appGUI/preferences/tools/ToolsCalculatorsPrefGroupUI.py

@@ -0,0 +1,142 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import FCDoubleSpinner
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class ToolsCalculatorsPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+        # OptionsGroupUI.__init__(self, "Calculators Tool Options", parent=parent)
+        super(ToolsCalculatorsPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("Calculators Tool Options")))
+        self.decimals = decimals
+
+        # ## V-shape Calculator Tool
+        self.vshape_tool_label = QtWidgets.QLabel("<b>%s:</b>" % _("V-Shape Tool Calculator"))
+        self.vshape_tool_label.setToolTip(
+            _("Calculate the tool diameter for a given V-shape tool,\n"
+              "having the tip diameter, tip angle and\n"
+              "depth-of-cut as parameters.")
+        )
+        self.layout.addWidget(self.vshape_tool_label)
+
+        grid0 = QtWidgets.QGridLayout()
+        grid0.setColumnStretch(0, 0)
+        grid0.setColumnStretch(1, 1)
+        self.layout.addLayout(grid0)
+
+        # ## Tip Diameter
+        self.tip_dia_entry = FCDoubleSpinner()
+        self.tip_dia_entry.set_range(0.000001, 9999.9999)
+        self.tip_dia_entry.set_precision(self.decimals)
+        self.tip_dia_entry.setSingleStep(0.1)
+
+        self.tip_dia_label = QtWidgets.QLabel('%s:' % _("Tip Diameter"))
+        self.tip_dia_label.setToolTip(
+            _("This is the tool tip diameter.\n"
+              "It is specified by manufacturer.")
+        )
+        grid0.addWidget(self.tip_dia_label, 0, 0)
+        grid0.addWidget(self.tip_dia_entry, 0, 1)
+
+        # ## Tip angle
+        self.tip_angle_entry = FCDoubleSpinner()
+        self.tip_angle_entry.set_range(0.0, 180.0)
+        self.tip_angle_entry.set_precision(self.decimals)
+        self.tip_angle_entry.setSingleStep(5)
+
+        self.tip_angle_label = QtWidgets.QLabel('%s:' % _("Tip Angle"))
+        self.tip_angle_label.setToolTip(
+            _("This is the angle on the tip of the tool.\n"
+              "It is specified by manufacturer.")
+        )
+        grid0.addWidget(self.tip_angle_label, 1, 0)
+        grid0.addWidget(self.tip_angle_entry, 1, 1)
+
+        # ## Depth-of-cut Cut Z
+        self.cut_z_entry = FCDoubleSpinner()
+        self.cut_z_entry.set_range(-9999.9999, 0.0000)
+        self.cut_z_entry.set_precision(self.decimals)
+        self.cut_z_entry.setSingleStep(0.01)
+
+        self.cut_z_label = QtWidgets.QLabel('%s:' % _("Cut Z"))
+        self.cut_z_label.setToolTip(
+            _("This is depth to cut into material.\n"
+              "In the CNCJob object it is the CutZ parameter.")
+        )
+        grid0.addWidget(self.cut_z_label, 2, 0)
+        grid0.addWidget(self.cut_z_entry, 2, 1)
+
+        # ## Electroplating Calculator Tool
+        self.plate_title_label = QtWidgets.QLabel("<b>%s:</b>" % _("ElectroPlating Calculator"))
+        self.plate_title_label.setToolTip(
+            _("This calculator is useful for those who plate the via/pad/drill holes,\n"
+              "using a method like graphite ink or calcium hypophosphite ink or palladium chloride.")
+        )
+        grid0.addWidget(self.plate_title_label, 3, 0, 1, 2)
+
+        # ## PCB Length
+        self.pcblength_entry = FCDoubleSpinner()
+        self.pcblength_entry.set_range(0.000001, 9999.9999)
+        self.pcblength_entry.set_precision(self.decimals)
+        self.pcblength_entry.setSingleStep(0.1)
+
+        self.pcblengthlabel = QtWidgets.QLabel('%s:' % _("Board Length"))
+
+        self.pcblengthlabel.setToolTip(_('This is the board length. In centimeters.'))
+        grid0.addWidget(self.pcblengthlabel, 4, 0)
+        grid0.addWidget(self.pcblength_entry, 4, 1)
+
+        # ## PCB Width
+        self.pcbwidth_entry = FCDoubleSpinner()
+        self.pcbwidth_entry.set_range(0.000001, 9999.9999)
+        self.pcbwidth_entry.set_precision(self.decimals)
+        self.pcbwidth_entry.setSingleStep(0.1)
+
+        self.pcbwidthlabel = QtWidgets.QLabel('%s:' % _("Board Width"))
+
+        self.pcbwidthlabel.setToolTip(_('This is the board width.In centimeters.'))
+        grid0.addWidget(self.pcbwidthlabel, 5, 0)
+        grid0.addWidget(self.pcbwidth_entry, 5, 1)
+
+        # ## Current Density
+        self.cdensity_label = QtWidgets.QLabel('%s:' % _("Current Density"))
+        self.cdensity_entry = FCDoubleSpinner()
+        self.cdensity_entry.set_range(0.000001, 9999.9999)
+        self.cdensity_entry.set_precision(self.decimals)
+        self.cdensity_entry.setSingleStep(0.1)
+
+        self.cdensity_label.setToolTip(_("Current density to pass through the board. \n"
+                                         "In Amps per Square Feet ASF."))
+        grid0.addWidget(self.cdensity_label, 6, 0)
+        grid0.addWidget(self.cdensity_entry, 6, 1)
+
+        # ## PCB Copper Growth
+        self.growth_label = QtWidgets.QLabel('%s:' % _("Copper Growth"))
+        self.growth_entry = FCDoubleSpinner()
+        self.growth_entry.set_range(0.000001, 9999.9999)
+        self.growth_entry.set_precision(self.decimals)
+        self.growth_entry.setSingleStep(0.01)
+
+        self.growth_label.setToolTip(_("How thick the copper growth is intended to be.\n"
+                                       "In microns."))
+        grid0.addWidget(self.growth_label, 7, 0)
+        grid0.addWidget(self.growth_entry, 7, 1)
+
+        self.layout.addStretch()

appGUI/preferences/tools/ToolsCornersPrefGroupUI.py

@@ -0,0 +1,81 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import FCDoubleSpinner
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class ToolsCornersPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+        # OptionsGroupUI.__init__(self, "Calculators Tool Options", parent=parent)
+        super(ToolsCornersPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("Corner Markers Options")))
+        self.decimals = decimals
+
+        grid0 = QtWidgets.QGridLayout()
+        grid0.setColumnStretch(0, 0)
+        grid0.setColumnStretch(1, 1)
+        self.layout.addLayout(grid0)
+
+        self.param_label = QtWidgets.QLabel('<b>%s:</b>' % _('Parameters'))
+        self.param_label.setToolTip(
+            _("Parameters used for this tool.")
+        )
+        grid0.addWidget(self.param_label, 0, 0, 1, 2)
+
+        # Thickness #
+        self.thick_label = QtWidgets.QLabel('%s:' % _("Thickness"))
+        self.thick_label.setToolTip(
+            _("The thickness of the line that makes the corner marker.")
+        )
+        self.thick_entry = FCDoubleSpinner()
+        self.thick_entry.set_range(0.0000, 9.9999)
+        self.thick_entry.set_precision(self.decimals)
+        self.thick_entry.setWrapping(True)
+        self.thick_entry.setSingleStep(10 ** -self.decimals)
+
+        grid0.addWidget(self.thick_label, 1, 0)
+        grid0.addWidget(self.thick_entry, 1, 1)
+
+        # Length #
+        self.l_label = QtWidgets.QLabel('%s:' % _("Length"))
+        self.l_label.setToolTip(
+            _("The length of the line that makes the corner marker.")
+        )
+        self.l_entry = FCDoubleSpinner()
+        self.l_entry.set_range(-9999.9999, 9999.9999)
+        self.l_entry.set_precision(self.decimals)
+        self.l_entry.setSingleStep(10 ** -self.decimals)
+
+        # Margin #
+        self.margin_label = QtWidgets.QLabel('%s:' % _("Margin"))
+        self.margin_label.setToolTip(
+            _("Bounding box margin.")
+        )
+        self.margin_entry = FCDoubleSpinner()
+        self.margin_entry.set_range(-9999.9999, 9999.9999)
+        self.margin_entry.set_precision(self.decimals)
+        self.margin_entry.setSingleStep(0.1)
+
+        grid0.addWidget(self.margin_label, 2, 0)
+        grid0.addWidget(self.margin_entry, 2, 1)
+
+        grid0.addWidget(self.l_label, 4, 0)
+        grid0.addWidget(self.l_entry, 4, 1)
+
+        self.layout.addStretch()

appGUI/preferences/tools/ToolsCutoutPrefGroupUI.py

@@ -0,0 +1,177 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import FCDoubleSpinner, FCCheckBox, RadioSet, FCComboBox
+from appGUI.preferences import machinist_setting
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class ToolsCutoutPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+        # OptionsGroupUI.__init__(self, "Cutout Tool Options", parent=parent)
+        super(ToolsCutoutPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("Cutout Tool Options")))
+        self.decimals = decimals
+
+        # ## Board cutout
+        self.board_cutout_label = QtWidgets.QLabel("<b>%s:</b>" % _("Parameters"))
+        self.board_cutout_label.setToolTip(
+            _("Create toolpaths to cut around\n"
+              "the PCB and separate it from\n"
+              "the original board.")
+        )
+        self.layout.addWidget(self.board_cutout_label)
+
+        grid0 = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid0)
+
+        tdclabel = QtWidgets.QLabel('%s:' % _('Tool Diameter'))
+        tdclabel.setToolTip(
+            _("Diameter of the tool used to cutout\n"
+              "the PCB shape out of the surrounding material.")
+        )
+
+        self.cutout_tooldia_entry = FCDoubleSpinner()
+        self.cutout_tooldia_entry.set_range(0.000001, 9999.9999)
+        self.cutout_tooldia_entry.set_precision(self.decimals)
+        self.cutout_tooldia_entry.setSingleStep(0.1)
+
+        grid0.addWidget(tdclabel, 0, 0)
+        grid0.addWidget(self.cutout_tooldia_entry, 0, 1)
+
+        # Cut Z
+        cutzlabel = QtWidgets.QLabel('%s:' % _('Cut Z'))
+        cutzlabel.setToolTip(
+            _(
+                "Cutting depth (negative)\n"
+                "below the copper surface."
+            )
+        )
+        self.cutz_entry = FCDoubleSpinner()
+        self.cutz_entry.set_precision(self.decimals)
+
+        if machinist_setting == 0:
+            self.cutz_entry.setRange(-9999.9999, 0.0000)
+        else:
+            self.cutz_entry.setRange(-9999.9999, 9999.9999)
+
+        self.cutz_entry.setSingleStep(0.1)
+
+        grid0.addWidget(cutzlabel, 1, 0)
+        grid0.addWidget(self.cutz_entry, 1, 1)
+
+        # Multi-pass
+        self.mpass_cb = FCCheckBox('%s:' % _("Multi-Depth"))
+        self.mpass_cb.setToolTip(
+            _(
+                "Use multiple passes to limit\n"
+                "the cut depth in each pass. Will\n"
+                "cut multiple times until Cut Z is\n"
+                "reached."
+            )
+        )
+
+        self.maxdepth_entry = FCDoubleSpinner()
+        self.maxdepth_entry.set_precision(self.decimals)
+        self.maxdepth_entry.setRange(0, 9999.9999)
+        self.maxdepth_entry.setSingleStep(0.1)
+
+        self.maxdepth_entry.setToolTip(_("Depth of each pass (positive)."))
+
+        grid0.addWidget(self.mpass_cb, 2, 0)
+        grid0.addWidget(self.maxdepth_entry, 2, 1)
+
+        # Object kind
+        kindlabel = QtWidgets.QLabel('%s:' % _('Object kind'))
+        kindlabel.setToolTip(
+            _("Choice of what kind the object we want to cutout is.<BR>"
+              "- <B>Single</B>: contain a single PCB Gerber outline object.<BR>"
+              "- <B>Panel</B>: a panel PCB Gerber object, which is made\n"
+              "out of many individual PCB outlines.")
+        )
+
+        self.obj_kind_combo = RadioSet([
+            {"label": _("Single"), "value": "single"},
+            {"label": _("Panel"), "value": "panel"},
+        ])
+        grid0.addWidget(kindlabel, 3, 0)
+        grid0.addWidget(self.obj_kind_combo, 3, 1)
+
+        marginlabel = QtWidgets.QLabel('%s:' % _('Margin'))
+        marginlabel.setToolTip(
+            _("Margin over bounds. A positive value here\n"
+              "will make the cutout of the PCB further from\n"
+              "the actual PCB border")
+        )
+
+        self.cutout_margin_entry = FCDoubleSpinner()
+        self.cutout_margin_entry.set_range(-9999.9999, 9999.9999)
+        self.cutout_margin_entry.set_precision(self.decimals)
+        self.cutout_margin_entry.setSingleStep(0.1)
+
+        grid0.addWidget(marginlabel, 4, 0)
+        grid0.addWidget(self.cutout_margin_entry, 4, 1)
+
+        gaplabel = QtWidgets.QLabel('%s:' % _('Gap size'))
+        gaplabel.setToolTip(
+            _("The size of the bridge gaps in the cutout\n"
+              "used to keep the board connected to\n"
+              "the surrounding material (the one \n"
+              "from which the PCB is cutout).")
+        )
+
+        self.cutout_gap_entry = FCDoubleSpinner()
+        self.cutout_gap_entry.set_range(0.000001, 9999.9999)
+        self.cutout_gap_entry.set_precision(self.decimals)
+        self.cutout_gap_entry.setSingleStep(0.1)
+
+        grid0.addWidget(gaplabel, 5, 0)
+        grid0.addWidget(self.cutout_gap_entry, 5, 1)
+
+        gaps_label = QtWidgets.QLabel('%s:' % _('Gaps'))
+        gaps_label.setToolTip(
+            _("Number of gaps used for the cutout.\n"
+              "There can be maximum 8 bridges/gaps.\n"
+              "The choices are:\n"
+              "- None  - no gaps\n"
+              "- lr    - left + right\n"
+              "- tb    - top + bottom\n"
+              "- 4     - left + right +top + bottom\n"
+              "- 2lr   - 2*left + 2*right\n"
+              "- 2tb  - 2*top + 2*bottom\n"
+              "- 8     - 2*left + 2*right +2*top + 2*bottom")
+        )
+
+        self.gaps_combo = FCComboBox()
+        grid0.addWidget(gaps_label, 6, 0)
+        grid0.addWidget(self.gaps_combo, 6, 1)
+
+        gaps_items = ['None', 'LR', 'TB', '4', '2LR', '2TB', '8']
+        for it in gaps_items:
+            self.gaps_combo.addItem(it)
+            self.gaps_combo.setStyleSheet('background-color: rgb(255,255,255)')
+
+        # Surrounding convex box shape
+        self.convex_box = FCCheckBox('%s' % _("Convex Shape"))
+        self.convex_box.setToolTip(
+            _("Create a convex shape surrounding the entire PCB.\n"
+              "Used only if the source object type is Gerber.")
+        )
+        grid0.addWidget(self.convex_box, 7, 0, 1, 2)
+
+        self.layout.addStretch()

appGUI/preferences/tools/ToolsFilmPrefGroupUI.py

@@ -0,0 +1,311 @@
+from PyQt5 import QtWidgets, QtCore, QtGui
+from PyQt5.QtCore import Qt, QSettings
+
+from appGUI.GUIElements import RadioSet, FCEntry, FCDoubleSpinner, FCCheckBox, FCComboBox, FCColorEntry
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class ToolsFilmPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+        # OptionsGroupUI.__init__(self, "Cutout Tool Options", parent=parent)
+        super(ToolsFilmPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("Film Tool Options")))
+        self.decimals = decimals
+
+        # ## Parameters
+        self.film_label = QtWidgets.QLabel("<b>%s:</b>" % _("Parameters"))
+        self.film_label.setToolTip(
+            _("Create a PCB film from a Gerber or Geometry object.\n"
+              "The file is saved in SVG format.")
+        )
+        self.layout.addWidget(self.film_label)
+
+        grid0 = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid0)
+
+        self.film_type_radio = RadioSet([{'label': 'Pos', 'value': 'pos'},
+                                         {'label': 'Neg', 'value': 'neg'}])
+        ftypelbl = QtWidgets.QLabel('%s:' % _('Film Type'))
+        ftypelbl.setToolTip(
+            _("Generate a Positive black film or a Negative film.\n"
+              "Positive means that it will print the features\n"
+              "with black on a white canvas.\n"
+              "Negative means that it will print the features\n"
+              "with white on a black canvas.\n"
+              "The Film format is SVG.")
+        )
+        grid0.addWidget(ftypelbl, 0, 0)
+        grid0.addWidget(self.film_type_radio, 0, 1)
+
+        # Film Color
+        self.film_color_label = QtWidgets.QLabel('%s:' % _('Film Color'))
+        self.film_color_label.setToolTip(
+            _("Set the film color when positive film is selected.")
+        )
+        self.film_color_entry = FCColorEntry()
+
+        grid0.addWidget(self.film_color_label, 1, 0)
+        grid0.addWidget(self.film_color_entry, 1, 1)
+
+        # Film Border
+        self.film_boundary_entry = FCDoubleSpinner()
+        self.film_boundary_entry.set_precision(self.decimals)
+        self.film_boundary_entry.set_range(0, 9999.9999)
+        self.film_boundary_entry.setSingleStep(0.1)
+
+        self.film_boundary_label = QtWidgets.QLabel('%s:' % _("Border"))
+        self.film_boundary_label.setToolTip(
+            _("Specify a border around the object.\n"
+              "Only for negative film.\n"
+              "It helps if we use as a Box Object the same \n"
+              "object as in Film Object. It will create a thick\n"
+              "black bar around the actual print allowing for a\n"
+              "better delimitation of the outline features which are of\n"
+              "white color like the rest and which may confound with the\n"
+              "surroundings if not for this border.")
+        )
+        grid0.addWidget(self.film_boundary_label, 2, 0)
+        grid0.addWidget(self.film_boundary_entry, 2, 1)
+
+        self.film_scale_stroke_entry = FCDoubleSpinner()
+        self.film_scale_stroke_entry.set_precision(self.decimals)
+        self.film_scale_stroke_entry.set_range(0, 9999.9999)
+        self.film_scale_stroke_entry.setSingleStep(0.1)
+
+        self.film_scale_stroke_label = QtWidgets.QLabel('%s:' % _("Scale Stroke"))
+        self.film_scale_stroke_label.setToolTip(
+            _("Scale the line stroke thickness of each feature in the SVG file.\n"
+              "It means that the line that envelope each SVG feature will be thicker or thinner,\n"
+              "therefore the fine features may be more affected by this parameter.")
+        )
+        grid0.addWidget(self.film_scale_stroke_label, 3, 0)
+        grid0.addWidget(self.film_scale_stroke_entry, 3, 1)
+
+        self.film_adj_label = QtWidgets.QLabel('<b>%s</b>' % _("Film Adjustments"))
+        self.film_adj_label.setToolTip(
+            _("Sometime the printers will distort the print shape, especially the Laser types.\n"
+              "This section provide the tools to compensate for the print distortions.")
+        )
+
+        grid0.addWidget(self.film_adj_label, 4, 0, 1, 2)
+
+        # Scale Geometry
+        self.film_scale_cb = FCCheckBox('%s' % _("Scale Film geometry"))
+        self.film_scale_cb.setToolTip(
+            _("A value greater than 1 will stretch the film\n"
+              "while a value less than 1 will jolt it.")
+        )
+        self.film_scale_cb.setStyleSheet(
+            """
+            QCheckBox {font-weight: bold; color: black}
+            """
+        )
+        grid0.addWidget(self.film_scale_cb, 5, 0, 1, 2)
+
+        self.film_scalex_label = QtWidgets.QLabel('%s:' % _("X factor"))
+        self.film_scalex_entry = FCDoubleSpinner()
+        self.film_scalex_entry.set_range(-999.9999, 999.9999)
+        self.film_scalex_entry.set_precision(self.decimals)
+        self.film_scalex_entry.setSingleStep(0.01)
+
+        grid0.addWidget(self.film_scalex_label, 6, 0)
+        grid0.addWidget(self.film_scalex_entry, 6, 1)
+
+        self.film_scaley_label = QtWidgets.QLabel('%s:' % _("Y factor"))
+        self.film_scaley_entry = FCDoubleSpinner()
+        self.film_scaley_entry.set_range(-999.9999, 999.9999)
+        self.film_scaley_entry.set_precision(self.decimals)
+        self.film_scaley_entry.setSingleStep(0.01)
+
+        grid0.addWidget(self.film_scaley_label, 7, 0)
+        grid0.addWidget(self.film_scaley_entry, 7, 1)
+
+        # Skew Geometry
+        self.film_skew_cb = FCCheckBox('%s' % _("Skew Film geometry"))
+        self.film_skew_cb.setToolTip(
+            _("Positive values will skew to the right\n"
+              "while negative values will skew to the left.")
+        )
+        self.film_skew_cb.setStyleSheet(
+            """
+            QCheckBox {font-weight: bold; color: black}
+            """
+        )
+        grid0.addWidget(self.film_skew_cb, 8, 0, 1, 2)
+
+        self.film_skewx_label = QtWidgets.QLabel('%s:' % _("X angle"))
+        self.film_skewx_entry = FCDoubleSpinner()
+        self.film_skewx_entry.set_range(-999.9999, 999.9999)
+        self.film_skewx_entry.set_precision(self.decimals)
+        self.film_skewx_entry.setSingleStep(0.01)
+
+        grid0.addWidget(self.film_skewx_label, 9, 0)
+        grid0.addWidget(self.film_skewx_entry, 9, 1)
+
+        self.film_skewy_label = QtWidgets.QLabel('%s:' % _("Y angle"))
+        self.film_skewy_entry = FCDoubleSpinner()
+        self.film_skewy_entry.set_range(-999.9999, 999.9999)
+        self.film_skewy_entry.set_precision(self.decimals)
+        self.film_skewy_entry.setSingleStep(0.01)
+
+        grid0.addWidget(self.film_skewy_label, 10, 0)
+        grid0.addWidget(self.film_skewy_entry, 10, 1)
+
+        self.film_skew_ref_label = QtWidgets.QLabel('%s:' % _("Reference"))
+        self.film_skew_ref_label.setToolTip(
+            _("The reference point to be used as origin for the skew.\n"
+              "It can be one of the four points of the geometry bounding box.")
+        )
+        self.film_skew_reference = RadioSet([{'label': _('Bottom Left'), 'value': 'bottomleft'},
+                                             {'label': _('Top Left'), 'value': 'topleft'},
+                                             {'label': _('Bottom Right'), 'value': 'bottomright'},
+                                             {'label': _('Top right'), 'value': 'topright'}],
+                                            orientation='vertical',
+                                            stretch=False)
+
+        grid0.addWidget(self.film_skew_ref_label, 11, 0)
+        grid0.addWidget(self.film_skew_reference, 11, 1)
+
+        # Mirror Geometry
+        self.film_mirror_cb = FCCheckBox('%s' % _("Mirror Film geometry"))
+        self.film_mirror_cb.setToolTip(
+            _("Mirror the film geometry on the selected axis or on both.")
+        )
+        self.film_mirror_cb.setStyleSheet(
+            """
+            QCheckBox {font-weight: bold; color: black}
+            """
+        )
+        grid0.addWidget(self.film_mirror_cb, 12, 0, 1, 2)
+
+        self.film_mirror_axis = RadioSet([{'label': _('None'), 'value': 'none'},
+                                          {'label': _('X'), 'value': 'x'},
+                                          {'label': _('Y'), 'value': 'y'},
+                                          {'label': _('Both'), 'value': 'both'}],
+                                         stretch=False)
+        self.film_mirror_axis_label = QtWidgets.QLabel('%s:' % _("Mirror axis"))
+
+        grid0.addWidget(self.film_mirror_axis_label, 13, 0)
+        grid0.addWidget(self.film_mirror_axis, 13, 1)
+
+        separator_line3 = QtWidgets.QFrame()
+        separator_line3.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line3.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line3, 14, 0, 1, 2)
+
+        self.file_type_radio = RadioSet([{'label': _('SVG'), 'value': 'svg'},
+                                         {'label': _('PNG'), 'value': 'png'},
+                                         {'label': _('PDF'), 'value': 'pdf'}
+                                         ], stretch=False)
+
+        self.file_type_label = QtWidgets.QLabel(_("Film Type:"))
+        self.file_type_label.setToolTip(
+            _("The file type of the saved film. Can be:\n"
+              "- 'SVG' -> open-source vectorial format\n"
+              "- 'PNG' -> raster image\n"
+              "- 'PDF' -> portable document format")
+        )
+        grid0.addWidget(self.file_type_label, 15, 0)
+        grid0.addWidget(self.file_type_radio, 15, 1)
+
+        # Page orientation
+        self.orientation_label = QtWidgets.QLabel('%s:' % _("Page Orientation"))
+        self.orientation_label.setToolTip(_("Can be:\n"
+                                            "- Portrait\n"
+                                            "- Landscape"))
+
+        self.orientation_radio = RadioSet([{'label': _('Portrait'), 'value': 'p'},
+                                           {'label': _('Landscape'), 'value': 'l'},
+                                           ], stretch=False)
+
+        grid0.addWidget(self.orientation_label, 16, 0)
+        grid0.addWidget(self.orientation_radio, 16, 1)
+
+        # Page Size
+        self.pagesize_label = QtWidgets.QLabel('%s:' % _("Page Size"))
+        self.pagesize_label.setToolTip(_("A selection of standard ISO 216 page sizes."))
+
+        self.pagesize_combo = FCComboBox()
+
+        self.pagesize = {}
+        self.pagesize.update(
+            {
+                'Bounds': None,
+                'A0': (841, 1189),
+                'A1': (594, 841),
+                'A2': (420, 594),
+                'A3': (297, 420),
+                'A4': (210, 297),
+                'A5': (148, 210),
+                'A6': (105, 148),
+                'A7': (74, 105),
+                'A8': (52, 74),
+                'A9': (37, 52),
+                'A10': (26, 37),
+
+                'B0': (1000, 1414),
+                'B1': (707, 1000),
+                'B2': (500, 707),
+                'B3': (353, 500),
+                'B4': (250, 353),
+                'B5': (176, 250),
+                'B6': (125, 176),
+                'B7': (88, 125),
+                'B8': (62, 88),
+                'B9': (44, 62),
+                'B10': (31, 44),
+
+                'C0': (917, 1297),
+                'C1': (648, 917),
+                'C2': (458, 648),
+                'C3': (324, 458),
+                'C4': (229, 324),
+                'C5': (162, 229),
+                'C6': (114, 162),
+                'C7': (81, 114),
+                'C8': (57, 81),
+                'C9': (40, 57),
+                'C10': (28, 40),
+
+                # American paper sizes
+                'LETTER': (8.5, 11),
+                'LEGAL': (8.5, 14),
+                'ELEVENSEVENTEEN': (11, 17),
+
+                # From https://en.wikipedia.org/wiki/Paper_size
+                'JUNIOR_LEGAL': (5, 8),
+                'HALF_LETTER': (5.5, 8),
+                'GOV_LETTER': (8, 10.5),
+                'GOV_LEGAL': (8.5, 13),
+                'LEDGER': (17, 11),
+            }
+        )
+
+        page_size_list = list(self.pagesize.keys())
+        self.pagesize_combo.addItems(page_size_list)
+
+        grid0.addWidget(self.pagesize_label, 17, 0)
+        grid0.addWidget(self.pagesize_combo, 17, 1)
+
+        self.layout.addStretch()
+
+        # Film Tool
+        self.film_color_entry.editingFinished.connect(self.on_film_color_entry)
+
+    def on_film_color_entry(self):
+        self.app.defaults['tools_film_color'] = self.film_color_entry.get_value()

appGUI/preferences/tools/ToolsISOPrefGroupUI.py

@@ -0,0 +1,320 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import RadioSet, FCDoubleSpinner, FCComboBox, FCCheckBox, FCSpinner, NumericalEvalTupleEntry
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class ToolsISOPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+        super(ToolsISOPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("Isolation Tool Options")))
+        self.decimals = decimals
+
+        # ## Clear non-copper regions
+        self.iso_label = QtWidgets.QLabel("<b>%s:</b>" % _("Parameters"))
+        self.iso_label.setToolTip(
+            _("Create a Geometry object with\n"
+              "toolpaths to cut around polygons.")
+        )
+        self.layout.addWidget(self.iso_label)
+
+        grid0 = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid0)
+
+        # Tool Dias
+        isotdlabel = QtWidgets.QLabel('<b><font color="green">%s:</font></b>' % _('Tools Dia'))
+        isotdlabel.setToolTip(
+            _("Diameters of the tools, separated by comma.\n"
+              "The value of the diameter has to use the dot decimals separator.\n"
+              "Valid values: 0.3, 1.0")
+        )
+        self.tool_dia_entry = NumericalEvalTupleEntry(border_color='#0069A9')
+        self.tool_dia_entry.setPlaceholderText(_("Comma separated values"))
+
+        grid0.addWidget(isotdlabel, 0, 0)
+        grid0.addWidget(self.tool_dia_entry, 0, 1, 1, 2)
+
+        # Tool order Radio Button
+        self.order_label = QtWidgets.QLabel('%s:' % _('Tool order'))
+        self.order_label.setToolTip(_("This set the way that the tools in the tools table are used.\n"
+                                      "'No' --> means that the used order is the one in the tool table\n"
+                                      "'Forward' --> means that the tools will be ordered from small to big\n"
+                                      "'Reverse' --> means that the tools will ordered from big to small\n\n"
+                                      "WARNING: using rest machining will automatically set the order\n"
+                                      "in reverse and disable this control."))
+
+        self.order_radio = RadioSet([{'label': _('No'), 'value': 'no'},
+                                     {'label': _('Forward'), 'value': 'fwd'},
+                                     {'label': _('Reverse'), 'value': 'rev'}])
+
+        grid0.addWidget(self.order_label, 1, 0)
+        grid0.addWidget(self.order_radio, 1, 1, 1, 2)
+
+        # Tool Type Radio Button
+        self.tool_type_label = QtWidgets.QLabel('%s:' % _('Tool Type'))
+        self.tool_type_label.setToolTip(
+            _("Default tool type:\n"
+              "- 'V-shape'\n"
+              "- Circular")
+        )
+
+        self.tool_type_radio = RadioSet([{'label': _('V-shape'), 'value': 'V'},
+                                         {'label': _('Circular'), 'value': 'C1'}])
+        self.tool_type_radio.setToolTip(
+            _("Default tool type:\n"
+              "- 'V-shape'\n"
+              "- Circular")
+        )
+
+        grid0.addWidget(self.tool_type_label, 2, 0)
+        grid0.addWidget(self.tool_type_radio, 2, 1, 1, 2)
+
+        # Tip Dia
+        self.tipdialabel = QtWidgets.QLabel('%s:' % _('V-Tip Dia'))
+        self.tipdialabel.setToolTip(
+            _("The tip diameter for V-Shape Tool"))
+        self.tipdia_entry = FCDoubleSpinner()
+        self.tipdia_entry.set_precision(self.decimals)
+        self.tipdia_entry.set_range(0, 1000)
+        self.tipdia_entry.setSingleStep(0.1)
+
+        grid0.addWidget(self.tipdialabel, 3, 0)
+        grid0.addWidget(self.tipdia_entry, 3, 1, 1, 2)
+
+        # Tip Angle
+        self.tipanglelabel = QtWidgets.QLabel('%s:' % _('V-Tip Angle'))
+        self.tipanglelabel.setToolTip(
+            _("The tip angle for V-Shape Tool.\n"
+              "In degrees."))
+        self.tipangle_entry = FCDoubleSpinner()
+        self.tipangle_entry.set_precision(self.decimals)
+        self.tipangle_entry.set_range(1, 180)
+        self.tipangle_entry.setSingleStep(5)
+        self.tipangle_entry.setWrapping(True)
+
+        grid0.addWidget(self.tipanglelabel, 4, 0)
+        grid0.addWidget(self.tipangle_entry, 4, 1, 1, 2)
+
+        # Cut Z entry
+        cutzlabel = QtWidgets.QLabel('%s:' % _('Cut Z'))
+        cutzlabel.setToolTip(
+           _("Depth of cut into material. Negative value.\n"
+             "In FlatCAM units.")
+        )
+        self.cutz_entry = FCDoubleSpinner()
+        self.cutz_entry.set_precision(self.decimals)
+        self.cutz_entry.set_range(-9999.9999, 0.0000)
+        self.cutz_entry.setSingleStep(0.1)
+
+        self.cutz_entry.setToolTip(
+           _("Depth of cut into material. Negative value.\n"
+             "In FlatCAM units.")
+        )
+
+        grid0.addWidget(cutzlabel, 5, 0)
+        grid0.addWidget(self.cutz_entry, 5, 1, 1, 2)
+
+        # New Diameter
+        self.newdialabel = QtWidgets.QLabel('%s:' % _('New Dia'))
+        self.newdialabel.setToolTip(
+            _("Diameter for the new tool to add in the Tool Table.\n"
+              "If the tool is V-shape type then this value is automatically\n"
+              "calculated from the other parameters.")
+        )
+        self.newdia_entry = FCDoubleSpinner()
+        self.newdia_entry.set_precision(self.decimals)
+        self.newdia_entry.set_range(0.0001, 9999.9999)
+        self.newdia_entry.setSingleStep(0.1)
+
+        grid0.addWidget(self.newdialabel, 6, 0)
+        grid0.addWidget(self.newdia_entry, 6, 1, 1, 2)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line, 7, 0, 1, 3)
+
+        # Passes
+        passlabel = QtWidgets.QLabel('%s:' % _('Passes'))
+        passlabel.setToolTip(
+            _("Width of the isolation gap in\n"
+              "number (integer) of tool widths.")
+        )
+        self.passes_entry = FCSpinner()
+        self.passes_entry.set_range(1, 999)
+        self.passes_entry.setObjectName("i_passes")
+
+        grid0.addWidget(passlabel, 8, 0)
+        grid0.addWidget(self.passes_entry, 8, 1, 1, 2)
+
+        # Overlap Entry
+        overlabel = QtWidgets.QLabel('%s:' % _('Overlap'))
+        overlabel.setToolTip(
+            _("How much (percentage) of the tool width to overlap each tool pass.")
+        )
+        self.overlap_entry = FCDoubleSpinner(suffix='%')
+        self.overlap_entry.set_precision(self.decimals)
+        self.overlap_entry.setWrapping(True)
+        self.overlap_entry.set_range(0.0000, 99.9999)
+        self.overlap_entry.setSingleStep(0.1)
+        self.overlap_entry.setObjectName("i_overlap")
+
+        grid0.addWidget(overlabel, 9, 0)
+        grid0.addWidget(self.overlap_entry, 9, 1, 1, 2)
+
+        # Milling Type Radio Button
+        self.milling_type_label = QtWidgets.QLabel('%s:' % _('Milling Type'))
+        self.milling_type_label.setToolTip(
+            _("Milling type when the selected tool is of type: 'iso_op':\n"
+              "- climb / best for precision milling and to reduce tool usage\n"
+              "- conventional / useful when there is no backlash compensation")
+        )
+
+        self.milling_type_radio = RadioSet([{'label': _('Climb'), 'value': 'cl'},
+                                            {'label': _('Conventional'), 'value': 'cv'}])
+        self.milling_type_radio.setToolTip(
+            _("Milling type when the selected tool is of type: 'iso_op':\n"
+              "- climb / best for precision milling and to reduce tool usage\n"
+              "- conventional / useful when there is no backlash compensation")
+        )
+
+        grid0.addWidget(self.milling_type_label, 10, 0)
+        grid0.addWidget(self.milling_type_radio, 10, 1, 1, 2)
+
+        # Follow
+        self.follow_label = QtWidgets.QLabel('%s:' % _('Follow'))
+        self.follow_label.setToolTip(
+            _("Generate a 'Follow' geometry.\n"
+              "This means that it will cut through\n"
+              "the middle of the trace.")
+        )
+
+        self.follow_cb = FCCheckBox()
+        self.follow_cb.setToolTip(_("Generate a 'Follow' geometry.\n"
+                                    "This means that it will cut through\n"
+                                    "the middle of the trace."))
+        self.follow_cb.setObjectName("i_follow")
+
+        grid0.addWidget(self.follow_label, 11, 0)
+        grid0.addWidget(self.follow_cb, 11, 1, 1, 2)
+
+        # Isolation Type
+        self.iso_type_label = QtWidgets.QLabel('%s:' % _('Isolation Type'))
+        self.iso_type_label.setToolTip(
+            _("Choose how the isolation will be executed:\n"
+              "- 'Full' -> complete isolation of polygons\n"
+              "- 'Ext' -> will isolate only on the outside\n"
+              "- 'Int' -> will isolate only on the inside\n"
+              "'Exterior' isolation is almost always possible\n"
+              "(with the right tool) but 'Interior'\n"
+              "isolation can be done only when there is an opening\n"
+              "inside of the polygon (e.g polygon is a 'doughnut' shape).")
+        )
+        self.iso_type_radio = RadioSet([{'label': _('Full'), 'value': 'full'},
+                                        {'label': _('Ext'), 'value': 'ext'},
+                                        {'label': _('Int'), 'value': 'int'}])
+        self.iso_type_radio.setObjectName("i_type")
+
+        grid0.addWidget(self.iso_type_label, 12, 0)
+        grid0.addWidget(self.iso_type_radio, 12, 1, 1, 2)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line, 13, 0, 1, 3)
+
+        # Rest machining CheckBox
+        self.rest_cb = FCCheckBox('%s' % _("Rest"))
+        self.rest_cb.setObjectName("i_rest_machining")
+        self.rest_cb.setToolTip(
+            _("If checked, use 'rest machining'.\n"
+              "Basically it will isolate outside PCB features,\n"
+              "using the biggest tool and continue with the next tools,\n"
+              "from bigger to smaller, to isolate the copper features that\n"
+              "could not be cleared by previous tool, until there is\n"
+              "no more copper features to isolate or there are no more tools.\n"
+              "If not checked, use the standard algorithm.")
+        )
+
+        grid0.addWidget(self.rest_cb, 17, 0)
+
+        # Combine All Passes
+        self.combine_passes_cb = FCCheckBox(label=_('Combine'))
+        self.combine_passes_cb.setToolTip(
+            _("Combine all passes into one object")
+        )
+        self.combine_passes_cb.setObjectName("i_combine")
+
+        grid0.addWidget(self.combine_passes_cb, 17, 1)
+
+        # Exception Areas
+        self.except_cb = FCCheckBox(label=_('Except'))
+        self.except_cb.setToolTip(_("When the isolation geometry is generated,\n"
+                                    "by checking this, the area of the object below\n"
+                                    "will be subtracted from the isolation geometry."))
+        self.except_cb.setObjectName("i_except")
+        grid0.addWidget(self.except_cb, 17, 2)
+
+        # Isolation Scope
+        self.select_label = QtWidgets.QLabel('%s:' % _("Selection"))
+        self.select_label.setToolTip(
+            _("Isolation scope. Choose what to isolate:\n"
+              "- 'All' -> Isolate all the polygons in the object\n"
+              "- 'Area Selection' -> Isolate polygons within a selection area.\n"
+              "- 'Polygon Selection' -> Isolate a selection of polygons.\n"
+              "- 'Reference Object' - will process the area specified by another object.")
+        )
+        self.select_combo = FCComboBox()
+        self.select_combo.addItems(
+            [_("All"), _("Area Selection"), _("Polygon Selection"), _("Reference Object")]
+        )
+        self.select_combo.setObjectName("i_selection")
+
+        grid0.addWidget(self.select_label, 20, 0)
+        grid0.addWidget(self.select_combo, 20, 1, 1, 2)
+
+        # Area Shape
+        self.area_shape_label = QtWidgets.QLabel('%s:' % _("Shape"))
+        self.area_shape_label.setToolTip(
+            _("The kind of selection shape used for area selection.")
+        )
+
+        self.area_shape_radio = RadioSet([{'label': _("Square"), 'value': 'square'},
+                                          {'label': _("Polygon"), 'value': 'polygon'}])
+
+        grid0.addWidget(self.area_shape_label, 21, 0)
+        grid0.addWidget(self.area_shape_radio, 21, 1, 1, 2)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line, 22, 0, 1, 3)
+
+        # ## Plotting type
+        self.plotting_radio = RadioSet([{'label': _('Normal'), 'value': 'normal'},
+                                        {"label": _("Progressive"), "value": "progressive"}])
+        plotting_label = QtWidgets.QLabel('%s:' % _("Plotting"))
+        plotting_label.setToolTip(
+            _("- 'Normal' -  normal plotting, done at the end of the job\n"
+              "- 'Progressive' - each shape is plotted after it is generated")
+        )
+        grid0.addWidget(plotting_label, 23, 0)
+        grid0.addWidget(self.plotting_radio, 23, 1, 1, 2)
+
+        self.layout.addStretch()

appGUI/preferences/tools/ToolsNCCPrefGroupUI.py

@@ -0,0 +1,349 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import RadioSet, FCDoubleSpinner, FCComboBox, FCCheckBox, NumericalEvalTupleEntry
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class ToolsNCCPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+        # OptionsGroupUI.__init__(self, "NCC Tool Options", parent=parent)
+        super(ToolsNCCPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("NCC Tool Options")))
+        self.decimals = decimals
+
+        # ## Clear non-copper regions
+        self.clearcopper_label = QtWidgets.QLabel("<b>%s:</b>" % _("Parameters"))
+        self.clearcopper_label.setToolTip(
+            _("Create a Geometry object with\n"
+              "toolpaths to cut all non-copper regions.")
+        )
+        self.layout.addWidget(self.clearcopper_label)
+
+        grid0 = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid0)
+
+        ncctdlabel = QtWidgets.QLabel('<b><font color="green">%s:</font></b>' % _('Tools Dia'))
+        ncctdlabel.setToolTip(
+            _("Diameters of the tools, separated by comma.\n"
+              "The value of the diameter has to use the dot decimals separator.\n"
+              "Valid values: 0.3, 1.0")
+        )
+        grid0.addWidget(ncctdlabel, 0, 0)
+        self.ncc_tool_dia_entry = NumericalEvalTupleEntry(border_color='#0069A9')
+        self.ncc_tool_dia_entry.setPlaceholderText(_("Comma separated values"))
+        grid0.addWidget(self.ncc_tool_dia_entry, 0, 1)
+
+        # Tool Type Radio Button
+        self.tool_type_label = QtWidgets.QLabel('%s:' % _('Tool Type'))
+        self.tool_type_label.setToolTip(
+            _("Default tool type:\n"
+              "- 'V-shape'\n"
+              "- Circular")
+        )
+
+        self.tool_type_radio = RadioSet([{'label': _('V-shape'), 'value': 'V'},
+                                         {'label': _('Circular'), 'value': 'C1'}])
+        self.tool_type_radio.setToolTip(
+            _("Default tool type:\n"
+              "- 'V-shape'\n"
+              "- Circular")
+        )
+
+        grid0.addWidget(self.tool_type_label, 1, 0)
+        grid0.addWidget(self.tool_type_radio, 1, 1)
+
+        # Tip Dia
+        self.tipdialabel = QtWidgets.QLabel('%s:' % _('V-Tip Dia'))
+        self.tipdialabel.setToolTip(
+            _("The tip diameter for V-Shape Tool"))
+        self.tipdia_entry = FCDoubleSpinner()
+        self.tipdia_entry.set_precision(self.decimals)
+        self.tipdia_entry.set_range(0, 1000)
+        self.tipdia_entry.setSingleStep(0.1)
+
+        grid0.addWidget(self.tipdialabel, 2, 0)
+        grid0.addWidget(self.tipdia_entry, 2, 1)
+
+        # Tip Angle
+        self.tipanglelabel = QtWidgets.QLabel('%s:' % _('V-Tip Angle'))
+        self.tipanglelabel.setToolTip(
+            _("The tip angle for V-Shape Tool.\n"
+              "In degree."))
+        self.tipangle_entry = FCDoubleSpinner()
+        self.tipangle_entry.set_precision(self.decimals)
+        self.tipangle_entry.set_range(1, 180)
+        self.tipangle_entry.setSingleStep(5)
+        self.tipangle_entry.setWrapping(True)
+
+        grid0.addWidget(self.tipanglelabel, 3, 0)
+        grid0.addWidget(self.tipangle_entry, 3, 1)
+
+        # Cut Z entry
+        cutzlabel = QtWidgets.QLabel('%s:' % _('Cut Z'))
+        cutzlabel.setToolTip(
+           _("Depth of cut into material. Negative value.\n"
+             "In FlatCAM units.")
+        )
+        self.cutz_entry = FCDoubleSpinner()
+        self.cutz_entry.set_precision(self.decimals)
+        self.cutz_entry.set_range(-9999.9999, 0.0000)
+        self.cutz_entry.setSingleStep(0.1)
+
+        self.cutz_entry.setToolTip(
+           _("Depth of cut into material. Negative value.\n"
+             "In FlatCAM units.")
+        )
+
+        grid0.addWidget(cutzlabel, 4, 0)
+        grid0.addWidget(self.cutz_entry, 4, 1)
+
+        # New Diameter
+        self.newdialabel = QtWidgets.QLabel('%s:' % _('New Dia'))
+        self.newdialabel.setToolTip(
+            _("Diameter for the new tool to add in the Tool Table.\n"
+              "If the tool is V-shape type then this value is automatically\n"
+              "calculated from the other parameters.")
+        )
+        self.newdia_entry = FCDoubleSpinner()
+        self.newdia_entry.set_precision(self.decimals)
+        self.newdia_entry.set_range(0.0001, 9999.9999)
+        self.newdia_entry.setSingleStep(0.1)
+
+        grid0.addWidget(self.newdialabel, 5, 0)
+        grid0.addWidget(self.newdia_entry, 5, 1)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line, 6, 0, 1, 2)
+
+        # Milling Type Radio Button
+        self.milling_type_label = QtWidgets.QLabel('%s:' % _('Milling Type'))
+        self.milling_type_label.setToolTip(
+            _("Milling type when the selected tool is of type: 'iso_op':\n"
+              "- climb / best for precision milling and to reduce tool usage\n"
+              "- conventional / useful when there is no backlash compensation")
+        )
+
+        self.milling_type_radio = RadioSet([{'label': _('Climb'), 'value': 'cl'},
+                                            {'label': _('Conventional'), 'value': 'cv'}])
+        self.milling_type_radio.setToolTip(
+            _("Milling type when the selected tool is of type: 'iso_op':\n"
+              "- climb / best for precision milling and to reduce tool usage\n"
+              "- conventional / useful when there is no backlash compensation")
+        )
+
+        grid0.addWidget(self.milling_type_label, 7, 0)
+        grid0.addWidget(self.milling_type_radio, 7, 1)
+
+        # Tool order Radio Button
+        self.ncc_order_label = QtWidgets.QLabel('%s:' % _('Tool order'))
+        self.ncc_order_label.setToolTip(_("This set the way that the tools in the tools table are used.\n"
+                                          "'No' --> means that the used order is the one in the tool table\n"
+                                          "'Forward' --> means that the tools will be ordered from small to big\n"
+                                          "'Reverse' --> means that the tools will ordered from big to small\n\n"
+                                          "WARNING: using rest machining will automatically set the order\n"
+                                          "in reverse and disable this control."))
+
+        self.ncc_order_radio = RadioSet([{'label': _('No'), 'value': 'no'},
+                                         {'label': _('Forward'), 'value': 'fwd'},
+                                         {'label': _('Reverse'), 'value': 'rev'}])
+        self.ncc_order_radio.setToolTip(_("This set the way that the tools in the tools table are used.\n"
+                                          "'No' --> means that the used order is the one in the tool table\n"
+                                          "'Forward' --> means that the tools will be ordered from small to big\n"
+                                          "'Reverse' --> means that the tools will ordered from big to small\n\n"
+                                          "WARNING: using rest machining will automatically set the order\n"
+                                          "in reverse and disable this control."))
+        grid0.addWidget(self.ncc_order_label, 8, 0)
+        grid0.addWidget(self.ncc_order_radio, 8, 1)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line, 9, 0, 1, 2)
+
+        # Overlap Entry
+        nccoverlabel = QtWidgets.QLabel('%s:' % _('Overlap'))
+        nccoverlabel.setToolTip(
+           _("How much (percentage) of the tool width to overlap each tool pass.\n"
+             "Adjust the value starting with lower values\n"
+             "and increasing it if areas that should be cleared are still \n"
+             "not cleared.\n"
+             "Lower values = faster processing, faster execution on CNC.\n"
+             "Higher values = slow processing and slow execution on CNC\n"
+             "due of too many paths.")
+        )
+        self.ncc_overlap_entry = FCDoubleSpinner(suffix='%')
+        self.ncc_overlap_entry.set_precision(self.decimals)
+        self.ncc_overlap_entry.setWrapping(True)
+        self.ncc_overlap_entry.setRange(0.0000, 99.9999)
+        self.ncc_overlap_entry.setSingleStep(0.1)
+
+        grid0.addWidget(nccoverlabel, 10, 0)
+        grid0.addWidget(self.ncc_overlap_entry, 10, 1)
+
+        # Margin entry
+        nccmarginlabel = QtWidgets.QLabel('%s:' % _('Margin'))
+        nccmarginlabel.setToolTip(
+            _("Bounding box margin.")
+        )
+        self.ncc_margin_entry = FCDoubleSpinner()
+        self.ncc_margin_entry.set_precision(self.decimals)
+        self.ncc_margin_entry.set_range(-10000, 10000)
+        self.ncc_margin_entry.setSingleStep(0.1)
+
+        grid0.addWidget(nccmarginlabel, 11, 0)
+        grid0.addWidget(self.ncc_margin_entry, 11, 1)
+
+        # Method
+        methodlabel = QtWidgets.QLabel('%s:' % _('Method'))
+        methodlabel.setToolTip(
+            _("Algorithm for copper clearing:\n"
+              "- Standard: Fixed step inwards.\n"
+              "- Seed-based: Outwards from seed.\n"
+              "- Line-based: Parallel lines.")
+        )
+
+        # self.ncc_method_radio = RadioSet([
+        #     {"label": _("Standard"), "value": "standard"},
+        #     {"label": _("Seed-based"), "value": "seed"},
+        #     {"label": _("Straight lines"), "value": "lines"}
+        # ], orientation='vertical', stretch=False)
+        self.ncc_method_combo = FCComboBox()
+        self.ncc_method_combo.addItems(
+            [_("Standard"), _("Seed"), _("Lines"), _("Combo")]
+        )
+
+        grid0.addWidget(methodlabel, 12, 0)
+        grid0.addWidget(self.ncc_method_combo, 12, 1)
+
+        # Connect lines
+        self.ncc_connect_cb = FCCheckBox('%s' % _("Connect"))
+        self.ncc_connect_cb.setToolTip(
+            _("Draw lines between resulting\n"
+              "segments to minimize tool lifts.")
+        )
+
+        grid0.addWidget(self.ncc_connect_cb, 13, 0)
+
+        # Contour Checkbox
+        self.ncc_contour_cb = FCCheckBox('%s' % _("Contour"))
+        self.ncc_contour_cb.setToolTip(
+           _("Cut around the perimeter of the polygon\n"
+             "to trim rough edges.")
+        )
+
+        grid0.addWidget(self.ncc_contour_cb, 13, 1)
+
+        # ## NCC Offset choice
+        self.ncc_choice_offset_cb = FCCheckBox('%s' % _("Offset"))
+        self.ncc_choice_offset_cb.setToolTip(
+            _("If used, it will add an offset to the copper features.\n"
+              "The copper clearing will finish to a distance\n"
+              "from the copper features.\n"
+              "The value can be between 0 and 10 FlatCAM units.")
+        )
+
+        grid0.addWidget(self.ncc_choice_offset_cb, 14, 0, 1, 2)
+
+        # ## NCC Offset value
+        self.ncc_offset_label = QtWidgets.QLabel('%s:' % _("Offset value"))
+        self.ncc_offset_label.setToolTip(
+            _("If used, it will add an offset to the copper features.\n"
+              "The copper clearing will finish to a distance\n"
+              "from the copper features.\n"
+              "The value can be between 0.0 and 9999.9 FlatCAM units.")
+        )
+        self.ncc_offset_spinner = FCDoubleSpinner()
+        self.ncc_offset_spinner.set_range(0.00, 9999.9999)
+        self.ncc_offset_spinner.set_precision(self.decimals)
+        self.ncc_offset_spinner.setWrapping(True)
+        self.ncc_offset_spinner.setSingleStep(0.1)
+
+        grid0.addWidget(self.ncc_offset_label, 15, 0)
+        grid0.addWidget(self.ncc_offset_spinner, 15, 1)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line, 16, 0, 1, 2)
+
+        # Rest machining CheckBox
+        self.ncc_rest_cb = FCCheckBox('%s' % _("Rest"))
+        self.ncc_rest_cb.setToolTip(
+            _("If checked, use 'rest machining'.\n"
+              "Basically it will clear copper outside PCB features,\n"
+              "using the biggest tool and continue with the next tools,\n"
+              "from bigger to smaller, to clear areas of copper that\n"
+              "could not be cleared by previous tool, until there is\n"
+              "no more copper to clear or there are no more tools.\n"
+              "If not checked, use the standard algorithm.")
+        )
+
+        grid0.addWidget(self.ncc_rest_cb, 17, 0, 1, 2)
+
+        # ## Reference
+        # self.reference_radio = RadioSet([{'label': _('Itself'), 'value': 'itself'},
+        #                                  {"label": _("Area Selection"), "value": "area"},
+        #                                  {'label': _('Reference Object'), 'value': 'box'}],
+        #                                 orientation='vertical',
+        #                                 stretch=None)
+        self.select_combo = FCComboBox()
+        self.select_combo.addItems(
+            [_("Itself"), _("Area Selection"), _("Reference Object")]
+        )
+        select_label = QtWidgets.QLabel('%s:' % _("Selection"))
+        select_label.setToolTip(
+            _("Selection of area to be processed.\n"
+              "- 'Itself' - the processing extent is based on the object that is processed.\n "
+              "- 'Area Selection' - left mouse click to start selection of the area to be processed.\n"
+              "- 'Reference Object' - will process the area specified by another object.")
+        )
+
+        grid0.addWidget(select_label, 18, 0)
+        grid0.addWidget(self.select_combo, 18, 1)
+
+        self.area_shape_label = QtWidgets.QLabel('%s:' % _("Shape"))
+        self.area_shape_label.setToolTip(
+            _("The kind of selection shape used for area selection.")
+        )
+
+        self.area_shape_radio = RadioSet([{'label': _("Square"), 'value': 'square'},
+                                          {'label': _("Polygon"), 'value': 'polygon'}])
+
+        grid0.addWidget(self.area_shape_label, 19, 0)
+        grid0.addWidget(self.area_shape_radio, 19, 1)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line, 20, 0, 1, 2)
+
+        # ## Plotting type
+        self.plotting_radio = RadioSet([{'label': _('Normal'), 'value': 'normal'},
+                                        {"label": _("Progressive"), "value": "progressive"}])
+        plotting_label = QtWidgets.QLabel('%s:' % _("Plotting"))
+        plotting_label.setToolTip(
+            _("- 'Normal' -  normal plotting, done at the end of the job\n"
+              "- 'Progressive' - each shape is plotted after it is generated")
+        )
+        grid0.addWidget(plotting_label, 21, 0)
+        grid0.addWidget(self.plotting_radio, 21, 1)
+
+        self.layout.addStretch()

appGUI/preferences/tools/ToolsPaintPrefGroupUI.py

@@ -0,0 +1,313 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import RadioSet, FCDoubleSpinner, FCComboBox, FCCheckBox, NumericalEvalTupleEntry
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class ToolsPaintPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+        # OptionsGroupUI.__init__(self, "Paint Area Tool Options", parent=parent)
+        super(ToolsPaintPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("Paint Tool Options")))
+        self.decimals = decimals
+
+        # ------------------------------
+        # ## Paint area
+        # ------------------------------
+        self.paint_label = QtWidgets.QLabel(_('<b>Parameters:</b>'))
+        self.paint_label.setToolTip(
+            _("Creates tool paths to cover the\n"
+              "whole area of a polygon (remove\n"
+              "all copper). You will be asked\n"
+              "to click on the desired polygon.")
+        )
+        self.layout.addWidget(self.paint_label)
+
+        grid0 = QtWidgets.QGridLayout()
+        grid0.setColumnStretch(0, 0)
+        grid0.setColumnStretch(1, 1)
+        self.layout.addLayout(grid0)
+
+        # Tool dia
+        ptdlabel = QtWidgets.QLabel('<b><font color="green">%s:</font></b>' % _('Tools Dia'))
+        ptdlabel.setToolTip(
+            _("Diameters of the tools, separated by comma.\n"
+              "The value of the diameter has to use the dot decimals separator.\n"
+              "Valid values: 0.3, 1.0")
+        )
+        grid0.addWidget(ptdlabel, 0, 0)
+
+        self.painttooldia_entry = NumericalEvalTupleEntry(border_color='#0069A9')
+        self.painttooldia_entry.setPlaceholderText(_("Comma separated values"))
+
+        grid0.addWidget(self.painttooldia_entry, 0, 1)
+
+        # Tool Type Radio Button
+        self.tool_type_label = QtWidgets.QLabel('%s:' % _('Tool Type'))
+        self.tool_type_label.setToolTip(
+            _("Default tool type:\n"
+              "- 'V-shape'\n"
+              "- Circular")
+        )
+
+        self.tool_type_radio = RadioSet([{'label': _('V-shape'), 'value': 'V'},
+                                         {'label': _('Circular'), 'value': 'C1'}])
+
+        self.tool_type_radio.setObjectName(_("Tool Type"))
+
+        grid0.addWidget(self.tool_type_label, 1, 0)
+        grid0.addWidget(self.tool_type_radio, 1, 1)
+
+        # Tip Dia
+        self.tipdialabel = QtWidgets.QLabel('%s:' % _('V-Tip Dia'))
+        self.tipdialabel.setToolTip(
+            _("The tip diameter for V-Shape Tool"))
+        self.tipdia_entry = FCDoubleSpinner()
+        self.tipdia_entry.set_precision(self.decimals)
+        self.tipdia_entry.set_range(0.0000, 9999.9999)
+        self.tipdia_entry.setSingleStep(0.1)
+        self.tipdia_entry.setObjectName(_("V-Tip Dia"))
+
+        grid0.addWidget(self.tipdialabel, 2, 0)
+        grid0.addWidget(self.tipdia_entry, 2, 1)
+
+        # Tip Angle
+        self.tipanglelabel = QtWidgets.QLabel('%s:' % _('V-Tip Angle'))
+        self.tipanglelabel.setToolTip(
+            _("The tip angle for V-Shape Tool.\n"
+              "In degree."))
+        self.tipangle_entry = FCDoubleSpinner()
+        self.tipangle_entry.set_precision(self.decimals)
+        self.tipangle_entry.set_range(1.0000, 180.0000)
+        self.tipangle_entry.setSingleStep(5)
+        self.tipangle_entry.setObjectName(_("V-Tip Angle"))
+
+        grid0.addWidget(self.tipanglelabel, 3, 0)
+        grid0.addWidget(self.tipangle_entry, 3, 1)
+
+        # Cut Z entry
+        cutzlabel = QtWidgets.QLabel('%s:' % _('Cut Z'))
+        cutzlabel.setToolTip(
+            _("Depth of cut into material. Negative value.\n"
+              "In application units.")
+        )
+        self.cutz_entry = FCDoubleSpinner()
+        self.cutz_entry.set_precision(self.decimals)
+        self.cutz_entry.set_range(-99999.9999, 0.0000)
+        self.cutz_entry.setObjectName(_("Cut Z"))
+
+        self.cutz_entry.setToolTip(
+            _("Depth of cut into material. Negative value.\n"
+              "In application units.")
+        )
+        grid0.addWidget(cutzlabel, 4, 0)
+        grid0.addWidget(self.cutz_entry, 4, 1)
+
+        # ### Tool Diameter ####
+        self.newdialabel = QtWidgets.QLabel('%s:' % _('New Dia'))
+        self.newdialabel.setToolTip(
+            _("Diameter for the new tool to add in the Tool Table.\n"
+              "If the tool is V-shape type then this value is automatically\n"
+              "calculated from the other parameters.")
+        )
+        self.newdia_entry = FCDoubleSpinner()
+        self.newdia_entry.set_precision(self.decimals)
+        self.newdia_entry.set_range(0.000, 9999.9999)
+        self.newdia_entry.setObjectName(_("Tool Dia"))
+
+        grid0.addWidget(self.newdialabel, 5, 0)
+        grid0.addWidget(self.newdia_entry, 5, 1)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line, 6, 0, 1, 2)
+
+        self.paint_order_label = QtWidgets.QLabel('%s:' % _('Tool order'))
+        self.paint_order_label.setToolTip(_("This set the way that the tools in the tools table are used.\n"
+                                            "'No' --> means that the used order is the one in the tool table\n"
+                                            "'Forward' --> means that the tools will be ordered from small to big\n"
+                                            "'Reverse' --> means that the tools will ordered from big to small\n\n"
+                                            "WARNING: using rest machining will automatically set the order\n"
+                                            "in reverse and disable this control."))
+
+        self.paint_order_radio = RadioSet([{'label': _('No'), 'value': 'no'},
+                                           {'label': _('Forward'), 'value': 'fwd'},
+                                           {'label': _('Reverse'), 'value': 'rev'}])
+
+        grid0.addWidget(self.paint_order_label, 7, 0)
+        grid0.addWidget(self.paint_order_radio, 7, 1)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line, 8, 0, 1, 2)
+
+        # Overlap
+        ovlabel = QtWidgets.QLabel('%s:' % _('Overlap'))
+        ovlabel.setToolTip(
+            _("How much (percentage) of the tool width to overlap each tool pass.\n"
+              "Adjust the value starting with lower values\n"
+              "and increasing it if areas that should be painted are still \n"
+              "not painted.\n"
+              "Lower values = faster processing, faster execution on CNC.\n"
+              "Higher values = slow processing and slow execution on CNC\n"
+              "due of too many paths.")
+        )
+        self.paintoverlap_entry = FCDoubleSpinner(suffix='%')
+        self.paintoverlap_entry.set_precision(self.decimals)
+        self.paintoverlap_entry.setWrapping(True)
+        self.paintoverlap_entry.setRange(0.0000, 99.9999)
+        self.paintoverlap_entry.setSingleStep(0.1)
+
+        grid0.addWidget(ovlabel, 9, 0)
+        grid0.addWidget(self.paintoverlap_entry, 9, 1)
+
+        # Margin
+        marginlabel = QtWidgets.QLabel('%s:' % _('Margin'))
+        marginlabel.setToolTip(
+            _("Distance by which to avoid\n"
+              "the edges of the polygon to\n"
+              "be painted.")
+        )
+        self.paintmargin_entry = FCDoubleSpinner()
+        self.paintmargin_entry.set_range(-9999.9999, 9999.9999)
+        self.paintmargin_entry.set_precision(self.decimals)
+        self.paintmargin_entry.setSingleStep(0.1)
+
+        grid0.addWidget(marginlabel, 10, 0)
+        grid0.addWidget(self.paintmargin_entry, 10, 1)
+
+        # Method
+        methodlabel = QtWidgets.QLabel('%s:' % _('Method'))
+        methodlabel.setToolTip(
+            _("Algorithm for painting:\n"
+              "- Standard: Fixed step inwards.\n"
+              "- Seed-based: Outwards from seed.\n"
+              "- Line-based: Parallel lines.\n"
+              "- Laser-lines: Active only for Gerber objects.\n"
+              "Will create lines that follow the traces.\n"
+              "- Combo: In case of failure a new method will be picked from the above\n"
+              "in the order specified.")
+        )
+
+        # self.paintmethod_combo = RadioSet([
+        #     {"label": _("Standard"), "value": "standard"},
+        #     {"label": _("Seed-based"), "value": "seed"},
+        #     {"label": _("Straight lines"), "value": "lines"}
+        # ], orientation='vertical', stretch=False)
+        self.paintmethod_combo = FCComboBox()
+        self.paintmethod_combo.addItems(
+            [_("Standard"), _("Seed"), _("Lines"), _("Laser_lines"), _("Combo")]
+        )
+
+        grid0.addWidget(methodlabel, 11, 0)
+        grid0.addWidget(self.paintmethod_combo, 11, 1)
+
+        # Connect lines
+        self.pathconnect_cb = FCCheckBox('%s' % _("Connect"))
+        self.pathconnect_cb.setToolTip(
+            _("Draw lines between resulting\n"
+              "segments to minimize tool lifts.")
+        )
+        grid0.addWidget(self.pathconnect_cb, 12, 0)
+
+        # Paint contour
+        self.contour_cb = FCCheckBox('%s' % _("Contour"))
+        self.contour_cb.setToolTip(
+            _("Cut around the perimeter of the polygon\n"
+              "to trim rough edges.")
+        )
+        grid0.addWidget(self.contour_cb, 12, 1)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line, 13, 0, 1, 2)
+
+        self.rest_cb = FCCheckBox('%s' % _("Rest"))
+        self.rest_cb.setObjectName(_("Rest"))
+        self.rest_cb.setToolTip(
+            _("If checked, use 'rest machining'.\n"
+              "Basically it will clear copper outside PCB features,\n"
+              "using the biggest tool and continue with the next tools,\n"
+              "from bigger to smaller, to clear areas of copper that\n"
+              "could not be cleared by previous tool, until there is\n"
+              "no more copper to clear or there are no more tools.\n\n"
+              "If not checked, use the standard algorithm.")
+        )
+        grid0.addWidget(self.rest_cb, 14, 0, 1, 2)
+
+        # Polygon selection
+        selectlabel = QtWidgets.QLabel('%s:' % _('Selection'))
+        selectlabel.setToolTip(
+            _("Selection of area to be processed.\n"
+              "- 'Polygon Selection' - left mouse click to add/remove polygons to be processed.\n"
+              "- 'Area Selection' - left mouse click to start selection of the area to be processed.\n"
+              "Keeping a modifier key pressed (CTRL or SHIFT) will allow to add multiple areas.\n"
+              "- 'All Polygons' - the process will start after click.\n"
+              "- 'Reference Object' - will process the area specified by another object.")
+        )
+
+        # self.selectmethod_combo = RadioSet(
+        #     [
+        #         {"label": _("Polygon Selection"), "value": "single"},
+        #         {"label": _("Area Selection"), "value": "area"},
+        #         {"label": _("All Polygons"), "value": "all"},
+        #         {"label": _("Reference Object"), "value": "ref"}
+        #     ],
+        #     orientation='vertical',
+        #     stretch=None
+        # )
+        self.selectmethod_combo = FCComboBox()
+        self.selectmethod_combo.addItems(
+            [_("Polygon Selection"), _("Area Selection"), _("All"), _("Reference Object")]
+        )
+
+        grid0.addWidget(selectlabel, 15, 0)
+        grid0.addWidget(self.selectmethod_combo, 15, 1)
+
+        self.area_shape_label = QtWidgets.QLabel('%s:' % _("Shape"))
+        self.area_shape_label.setToolTip(
+            _("The kind of selection shape used for area selection.")
+        )
+
+        self.area_shape_radio = RadioSet([{'label': _("Square"), 'value': 'square'},
+                                          {'label': _("Polygon"), 'value': 'polygon'}])
+
+        grid0.addWidget(self.area_shape_label, 18, 0)
+        grid0.addWidget(self.area_shape_radio, 18, 1)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line, 19, 0, 1, 2)
+
+        # ## Plotting type
+        self.paint_plotting_radio = RadioSet([{'label': _('Normal'), 'value': 'normal'},
+                                              {"label": _("Progressive"), "value": "progressive"}])
+        plotting_label = QtWidgets.QLabel('%s:' % _("Plotting"))
+        plotting_label.setToolTip(
+            _("- 'Normal' -  normal plotting, done at the end of the job\n"
+              "- 'Progressive' - each shape is plotted after it is generated")
+        )
+        grid0.addWidget(plotting_label, 20, 0)
+        grid0.addWidget(self.paint_plotting_radio, 20, 1)
+
+        self.layout.addStretch()

appGUI/preferences/tools/ToolsPanelizePrefGroupUI.py

@@ -0,0 +1,146 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import FCDoubleSpinner, FCSpinner, RadioSet, FCCheckBox
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class ToolsPanelizePrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+        # OptionsGroupUI.__init__(self, "Cutout Tool Options", parent=parent)
+        super(ToolsPanelizePrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("Panelize Tool Options")))
+        self.decimals = decimals
+
+        # ## Board cuttout
+        self.panelize_label = QtWidgets.QLabel("<b>%s:</b>" % _("Parameters"))
+        self.panelize_label.setToolTip(
+            _("Create an object that contains an array of (x, y) elements,\n"
+              "each element is a copy of the source object spaced\n"
+              "at a X distance, Y distance of each other.")
+        )
+        self.layout.addWidget(self.panelize_label)
+
+        grid0 = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid0)
+        grid0.setColumnStretch(0, 0)
+        grid0.setColumnStretch(1, 1)
+
+        # ## Spacing Columns
+        self.pspacing_columns = FCDoubleSpinner()
+        self.pspacing_columns.set_range(0.000001, 9999.9999)
+        self.pspacing_columns.set_precision(self.decimals)
+        self.pspacing_columns.setSingleStep(0.1)
+
+        self.spacing_columns_label = QtWidgets.QLabel('%s:' % _("Spacing cols"))
+        self.spacing_columns_label.setToolTip(
+            _("Spacing between columns of the desired panel.\n"
+              "In current units.")
+        )
+        grid0.addWidget(self.spacing_columns_label, 0, 0)
+        grid0.addWidget(self.pspacing_columns, 0, 1)
+
+        # ## Spacing Rows
+        self.pspacing_rows = FCDoubleSpinner()
+        self.pspacing_rows.set_range(0.000001, 9999.9999)
+        self.pspacing_rows.set_precision(self.decimals)
+        self.pspacing_rows.setSingleStep(0.1)
+
+        self.spacing_rows_label = QtWidgets.QLabel('%s:' % _("Spacing rows"))
+        self.spacing_rows_label.setToolTip(
+            _("Spacing between rows of the desired panel.\n"
+              "In current units.")
+        )
+        grid0.addWidget(self.spacing_rows_label, 1, 0)
+        grid0.addWidget(self.pspacing_rows, 1, 1)
+
+        # ## Columns
+        self.pcolumns = FCSpinner()
+        self.pcolumns.set_range(1, 1000)
+        self.pcolumns.set_step(1)
+
+        self.columns_label = QtWidgets.QLabel('%s:' % _("Columns"))
+        self.columns_label.setToolTip(
+            _("Number of columns of the desired panel")
+        )
+        grid0.addWidget(self.columns_label, 2, 0)
+        grid0.addWidget(self.pcolumns, 2, 1)
+
+        # ## Rows
+        self.prows = FCSpinner()
+        self.prows.set_range(1, 1000)
+        self.prows.set_step(1)
+
+        self.rows_label = QtWidgets.QLabel('%s:' % _("Rows"))
+        self.rows_label.setToolTip(
+            _("Number of rows of the desired panel")
+        )
+        grid0.addWidget(self.rows_label, 3, 0)
+        grid0.addWidget(self.prows, 3, 1)
+
+        # ## Type of resulting Panel object
+        self.panel_type_radio = RadioSet([{'label': _('Gerber'), 'value': 'gerber'},
+                                          {'label': _('Geo'), 'value': 'geometry'}])
+        self.panel_type_label = QtWidgets.QLabel('%s:' % _("Panel Type"))
+        self.panel_type_label.setToolTip(
+           _("Choose the type of object for the panel object:\n"
+             "- Gerber\n"
+             "- Geometry")
+        )
+
+        grid0.addWidget(self.panel_type_label, 4, 0)
+        grid0.addWidget(self.panel_type_radio, 4, 1)
+
+        # ## Constrains
+        self.pconstrain_cb = FCCheckBox('%s:' % _("Constrain within"))
+        self.pconstrain_cb.setToolTip(
+            _("Area define by DX and DY within to constrain the panel.\n"
+              "DX and DY values are in current units.\n"
+              "Regardless of how many columns and rows are desired,\n"
+              "the final panel will have as many columns and rows as\n"
+              "they fit completely within selected area.")
+        )
+        grid0.addWidget(self.pconstrain_cb, 5, 0, 1, 2)
+
+        self.px_width_entry = FCDoubleSpinner()
+        self.px_width_entry.set_range(0.000001, 9999.9999)
+        self.px_width_entry.set_precision(self.decimals)
+        self.px_width_entry.setSingleStep(0.1)
+
+        self.x_width_lbl = QtWidgets.QLabel('%s:' % _("Width (DX)"))
+        self.x_width_lbl.setToolTip(
+            _("The width (DX) within which the panel must fit.\n"
+              "In current units.")
+        )
+        grid0.addWidget(self.x_width_lbl, 6, 0)
+        grid0.addWidget(self.px_width_entry, 6, 1)
+
+        self.py_height_entry = FCDoubleSpinner()
+        self.py_height_entry.set_range(0.000001, 9999.9999)
+        self.py_height_entry.set_precision(self.decimals)
+        self.py_height_entry.setSingleStep(0.1)
+
+        self.y_height_lbl = QtWidgets.QLabel('%s:' % _("Height (DY)"))
+        self.y_height_lbl.setToolTip(
+            _("The height (DY)within which the panel must fit.\n"
+              "In current units.")
+        )
+        grid0.addWidget(self.y_height_lbl, 7, 0)
+        grid0.addWidget(self.py_height_entry, 7, 1)
+
+        self.layout.addStretch()

appGUI/preferences/tools/ToolsPreferencesUI.py

@@ -0,0 +1,105 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.preferences.tools.ToolsSubPrefGroupUI import ToolsSubPrefGroupUI
+from appGUI.preferences.tools.ToolsSolderpastePrefGroupUI import ToolsSolderpastePrefGroupUI
+from appGUI.preferences.tools.ToolsCornersPrefGroupUI import ToolsCornersPrefGroupUI
+from appGUI.preferences.tools.ToolsTransformPrefGroupUI import ToolsTransformPrefGroupUI
+from appGUI.preferences.tools.ToolsCalculatorsPrefGroupUI import ToolsCalculatorsPrefGroupUI
+from appGUI.preferences.tools.ToolsPanelizePrefGroupUI import ToolsPanelizePrefGroupUI
+from appGUI.preferences.tools.ToolsFilmPrefGroupUI import ToolsFilmPrefGroupUI
+from appGUI.preferences.tools.Tools2sidedPrefGroupUI import Tools2sidedPrefGroupUI
+
+from appGUI.preferences.tools.ToolsCutoutPrefGroupUI import ToolsCutoutPrefGroupUI
+from appGUI.preferences.tools.ToolsNCCPrefGroupUI import ToolsNCCPrefGroupUI
+from appGUI.preferences.tools.ToolsPaintPrefGroupUI import ToolsPaintPrefGroupUI
+from appGUI.preferences.tools.ToolsISOPrefGroupUI import ToolsISOPrefGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class ToolsPreferencesUI(QtWidgets.QWidget):
+
+    def __init__(self, decimals, parent=None):
+        QtWidgets.QWidget.__init__(self, parent=parent)
+        self.layout = QtWidgets.QHBoxLayout()
+        self.setLayout(self.layout)
+        self.decimals = decimals
+
+        self.tools_iso_group = ToolsISOPrefGroupUI(decimals=self.decimals)
+        self.tools_iso_group.setMinimumWidth(220)
+
+        self.tools_ncc_group = ToolsNCCPrefGroupUI(decimals=self.decimals)
+        self.tools_ncc_group.setMinimumWidth(220)
+
+        self.tools_paint_group = ToolsPaintPrefGroupUI(decimals=self.decimals)
+        self.tools_paint_group.setMinimumWidth(220)
+
+        self.tools_cutout_group = ToolsCutoutPrefGroupUI(decimals=self.decimals)
+        self.tools_cutout_group.setMinimumWidth(220)
+
+        self.tools_2sided_group = Tools2sidedPrefGroupUI(decimals=self.decimals)
+        self.tools_2sided_group.setMinimumWidth(220)
+
+        self.tools_film_group = ToolsFilmPrefGroupUI(decimals=self.decimals)
+        self.tools_film_group.setMinimumWidth(220)
+
+        self.tools_panelize_group = ToolsPanelizePrefGroupUI(decimals=self.decimals)
+        self.tools_panelize_group.setMinimumWidth(220)
+
+        self.tools_calculators_group = ToolsCalculatorsPrefGroupUI(decimals=self.decimals)
+        self.tools_calculators_group.setMinimumWidth(220)
+
+        self.tools_transform_group = ToolsTransformPrefGroupUI(decimals=self.decimals)
+        self.tools_transform_group.setMinimumWidth(200)
+
+        self.tools_solderpaste_group = ToolsSolderpastePrefGroupUI(decimals=self.decimals)
+        self.tools_solderpaste_group.setMinimumWidth(200)
+
+        self.tools_corners_group = ToolsCornersPrefGroupUI(decimals=self.decimals)
+        self.tools_corners_group.setMinimumWidth(200)
+
+        self.tools_sub_group = ToolsSubPrefGroupUI(decimals=self.decimals)
+        self.tools_sub_group.setMinimumWidth(200)
+
+        self.vlay = QtWidgets.QVBoxLayout()
+        self.vlay.addWidget(self.tools_ncc_group)
+        self.vlay.addWidget(self.tools_cutout_group)
+
+        self.vlay1 = QtWidgets.QVBoxLayout()
+        self.vlay1.addWidget(self.tools_paint_group)
+        self.vlay1.addWidget(self.tools_iso_group)
+
+        self.vlay2 = QtWidgets.QVBoxLayout()
+        self.vlay2.addWidget(self.tools_transform_group)
+        self.vlay2.addWidget(self.tools_2sided_group)
+        self.vlay2.addWidget(self.tools_sub_group)
+
+        self.vlay3 = QtWidgets.QVBoxLayout()
+        self.vlay3.addWidget(self.tools_film_group)
+        self.vlay3.addWidget(self.tools_calculators_group)
+
+        self.vlay4 = QtWidgets.QVBoxLayout()
+        self.vlay4.addWidget(self.tools_solderpaste_group)
+        self.vlay4.addWidget(self.tools_corners_group)
+        self.vlay4.addWidget(self.tools_panelize_group)
+
+        self.layout.addLayout(self.vlay)
+        self.layout.addLayout(self.vlay1)
+        self.layout.addLayout(self.vlay2)
+        self.layout.addLayout(self.vlay3)
+        self.layout.addLayout(self.vlay4)
+
+        self.layout.addStretch()

appGUI/preferences/tools/ToolsSolderpastePrefGroupUI.py

@@ -0,0 +1,246 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import FCDoubleSpinner, FCSpinner, FCComboBox, NumericalEvalTupleEntry
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class ToolsSolderpastePrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+
+        super(ToolsSolderpastePrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("SolderPaste Tool Options")))
+        self.decimals = decimals
+
+        # ## Solder Paste Dispensing
+        self.solderpastelabel = QtWidgets.QLabel("<b>%s:</b>" % _("Parameters"))
+        self.solderpastelabel.setToolTip(
+            _("A tool to create GCode for dispensing\n"
+              "solder paste onto a PCB.")
+        )
+        self.layout.addWidget(self.solderpastelabel)
+
+        grid0 = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid0)
+
+        # Nozzle Tool Diameters
+        nozzletdlabel = QtWidgets.QLabel('<b><font color="green">%s:</font></b>' % _('Tools Dia'))
+        nozzletdlabel.setToolTip(
+            _("Diameters of the tools, separated by comma.\n"
+              "The value of the diameter has to use the dot decimals separator.\n"
+              "Valid values: 0.3, 1.0")
+        )
+        self.nozzle_tool_dia_entry = NumericalEvalTupleEntry(border_color='#0069A9')
+
+        grid0.addWidget(nozzletdlabel, 0, 0)
+        grid0.addWidget(self.nozzle_tool_dia_entry, 0, 1)
+
+        # New Nozzle Tool Dia
+        self.addtool_entry_lbl = QtWidgets.QLabel('<b>%s:</b>' % _('New Nozzle Dia'))
+        self.addtool_entry_lbl.setToolTip(
+            _("Diameter for the new Nozzle tool to add in the Tool Table")
+        )
+        self.addtool_entry = FCDoubleSpinner()
+        self.addtool_entry.set_precision(self.decimals)
+        self.addtool_entry.set_range(0.0000001, 9999.9999)
+        self.addtool_entry.setSingleStep(0.1)
+
+        grid0.addWidget(self.addtool_entry_lbl, 1, 0)
+        grid0.addWidget(self.addtool_entry, 1, 1)
+
+        # Z dispense start
+        self.z_start_entry = FCDoubleSpinner()
+        self.z_start_entry.set_precision(self.decimals)
+        self.z_start_entry.set_range(0.0000001, 9999.9999)
+        self.z_start_entry.setSingleStep(0.1)
+
+        self.z_start_label = QtWidgets.QLabel('%s:' % _("Z Dispense Start"))
+        self.z_start_label.setToolTip(
+            _("The height (Z) when solder paste dispensing starts.")
+        )
+        grid0.addWidget(self.z_start_label, 2, 0)
+        grid0.addWidget(self.z_start_entry, 2, 1)
+
+        # Z dispense
+        self.z_dispense_entry = FCDoubleSpinner()
+        self.z_dispense_entry.set_precision(self.decimals)
+        self.z_dispense_entry.set_range(0.0000001, 9999.9999)
+        self.z_dispense_entry.setSingleStep(0.1)
+
+        self.z_dispense_label = QtWidgets.QLabel('%s:' % _("Z Dispense"))
+        self.z_dispense_label.setToolTip(
+            _("The height (Z) when doing solder paste dispensing.")
+        )
+        grid0.addWidget(self.z_dispense_label, 3, 0)
+        grid0.addWidget(self.z_dispense_entry, 3, 1)
+
+        # Z dispense stop
+        self.z_stop_entry = FCDoubleSpinner()
+        self.z_stop_entry.set_precision(self.decimals)
+        self.z_stop_entry.set_range(0.0000001, 9999.9999)
+        self.z_stop_entry.setSingleStep(0.1)
+
+        self.z_stop_label = QtWidgets.QLabel('%s:' % _("Z Dispense Stop"))
+        self.z_stop_label.setToolTip(
+            _("The height (Z) when solder paste dispensing stops.")
+        )
+        grid0.addWidget(self.z_stop_label, 4, 0)
+        grid0.addWidget(self.z_stop_entry, 4, 1)
+
+        # Z travel
+        self.z_travel_entry = FCDoubleSpinner()
+        self.z_travel_entry.set_precision(self.decimals)
+        self.z_travel_entry.set_range(0.0000001, 9999.9999)
+        self.z_travel_entry.setSingleStep(0.1)
+
+        self.z_travel_label = QtWidgets.QLabel('%s:' % _("Z Travel"))
+        self.z_travel_label.setToolTip(
+            _("The height (Z) for travel between pads\n"
+              "(without dispensing solder paste).")
+        )
+        grid0.addWidget(self.z_travel_label, 5, 0)
+        grid0.addWidget(self.z_travel_entry, 5, 1)
+
+        # Z toolchange location
+        self.z_toolchange_entry = FCDoubleSpinner()
+        self.z_toolchange_entry.set_precision(self.decimals)
+        self.z_toolchange_entry.set_range(0.0000001, 9999.9999)
+        self.z_toolchange_entry.setSingleStep(0.1)
+
+        self.z_toolchange_label = QtWidgets.QLabel('%s:' % _("Z Toolchange"))
+        self.z_toolchange_label.setToolTip(
+            _("The height (Z) for tool (nozzle) change.")
+        )
+        grid0.addWidget(self.z_toolchange_label, 6, 0)
+        grid0.addWidget(self.z_toolchange_entry, 6, 1)
+
+        # X,Y Toolchange location
+        self.xy_toolchange_entry = NumericalEvalTupleEntry(border_color='#0069A9')
+        self.xy_toolchange_label = QtWidgets.QLabel('%s:' % _("Toolchange X-Y"))
+        self.xy_toolchange_label.setToolTip(
+            _("The X,Y location for tool (nozzle) change.\n"
+              "The format is (x, y) where x and y are real numbers.")
+        )
+        grid0.addWidget(self.xy_toolchange_label, 7, 0)
+        grid0.addWidget(self.xy_toolchange_entry, 7, 1)
+
+        # Feedrate X-Y
+        self.frxy_entry = FCDoubleSpinner()
+        self.frxy_entry.set_precision(self.decimals)
+        self.frxy_entry.set_range(0.0000001, 99999.9999)
+        self.frxy_entry.setSingleStep(0.1)
+
+        self.frxy_label = QtWidgets.QLabel('%s:' % _("Feedrate X-Y"))
+        self.frxy_label.setToolTip(
+            _("Feedrate (speed) while moving on the X-Y plane.")
+        )
+        grid0.addWidget(self.frxy_label, 8, 0)
+        grid0.addWidget(self.frxy_entry, 8, 1)
+
+        # Feedrate Z
+        self.frz_entry = FCDoubleSpinner()
+        self.frz_entry.set_precision(self.decimals)
+        self.frz_entry.set_range(0.0000001, 99999.9999)
+        self.frz_entry.setSingleStep(0.1)
+
+        self.frz_label = QtWidgets.QLabel('%s:' % _("Feedrate Z"))
+        self.frz_label.setToolTip(
+            _("Feedrate (speed) while moving vertically\n"
+              "(on Z plane).")
+        )
+        grid0.addWidget(self.frz_label, 9, 0)
+        grid0.addWidget(self.frz_entry, 9, 1)
+
+        # Feedrate Z Dispense
+        self.frz_dispense_entry = FCDoubleSpinner()
+        self.frz_dispense_entry.set_precision(self.decimals)
+        self.frz_dispense_entry.set_range(0.0000001, 99999.9999)
+        self.frz_dispense_entry.setSingleStep(0.1)
+
+        self.frz_dispense_label = QtWidgets.QLabel('%s:' % _("Feedrate Z Dispense"))
+        self.frz_dispense_label.setToolTip(
+            _("Feedrate (speed) while moving up vertically\n"
+              "to Dispense position (on Z plane).")
+        )
+        grid0.addWidget(self.frz_dispense_label, 10, 0)
+        grid0.addWidget(self.frz_dispense_entry, 10, 1)
+
+        # Spindle Speed Forward
+        self.speedfwd_entry = FCSpinner()
+        self.speedfwd_entry.set_range(0, 99999)
+        self.speedfwd_entry.set_step(1000)
+
+        self.speedfwd_label = QtWidgets.QLabel('%s:' % _("Spindle Speed FWD"))
+        self.speedfwd_label.setToolTip(
+            _("The dispenser speed while pushing solder paste\n"
+              "through the dispenser nozzle.")
+        )
+        grid0.addWidget(self.speedfwd_label, 11, 0)
+        grid0.addWidget(self.speedfwd_entry, 11, 1)
+
+        # Dwell Forward
+        self.dwellfwd_entry = FCDoubleSpinner()
+        self.dwellfwd_entry.set_precision(self.decimals)
+        self.dwellfwd_entry.set_range(0.0000001, 9999.9999)
+        self.dwellfwd_entry.setSingleStep(0.1)
+
+        self.dwellfwd_label = QtWidgets.QLabel('%s:' % _("Dwell FWD"))
+        self.dwellfwd_label.setToolTip(
+            _("Pause after solder dispensing.")
+        )
+        grid0.addWidget(self.dwellfwd_label, 12, 0)
+        grid0.addWidget(self.dwellfwd_entry, 12, 1)
+
+        # Spindle Speed Reverse
+        self.speedrev_entry = FCSpinner()
+        self.speedrev_entry.set_range(0, 999999)
+        self.speedrev_entry.set_step(1000)
+
+        self.speedrev_label = QtWidgets.QLabel('%s:' % _("Spindle Speed REV"))
+        self.speedrev_label.setToolTip(
+            _("The dispenser speed while retracting solder paste\n"
+              "through the dispenser nozzle.")
+        )
+        grid0.addWidget(self.speedrev_label, 13, 0)
+        grid0.addWidget(self.speedrev_entry, 13, 1)
+
+        # Dwell Reverse
+        self.dwellrev_entry = FCDoubleSpinner()
+        self.dwellrev_entry.set_precision(self.decimals)
+        self.dwellrev_entry.set_range(0.0000001, 9999.9999)
+        self.dwellrev_entry.setSingleStep(0.1)
+
+        self.dwellrev_label = QtWidgets.QLabel('%s:' % _("Dwell REV"))
+        self.dwellrev_label.setToolTip(
+            _("Pause after solder paste dispenser retracted,\n"
+              "to allow pressure equilibrium.")
+        )
+        grid0.addWidget(self.dwellrev_label, 14, 0)
+        grid0.addWidget(self.dwellrev_entry, 14, 1)
+
+        # Preprocessors
+        pp_label = QtWidgets.QLabel('%s:' % _('Preprocessor'))
+        pp_label.setToolTip(
+            _("Files that control the GCode generation.")
+        )
+
+        self.pp_combo = FCComboBox()
+        grid0.addWidget(pp_label, 15, 0)
+        grid0.addWidget(self.pp_combo, 15, 1)
+
+        self.layout.addStretch()

appGUI/preferences/tools/ToolsSubPrefGroupUI.py

@@ -0,0 +1,42 @@
+from PyQt5 import QtWidgets
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import FCCheckBox
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class ToolsSubPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+
+        super(ToolsSubPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("Substractor Tool Options")))
+        self.decimals = decimals
+
+        # ## Subtractor Tool Parameters
+        self.sublabel = QtWidgets.QLabel("<b>%s:</b>" % _("Parameters"))
+        self.sublabel.setToolTip(
+            _("A tool to substract one Gerber or Geometry object\n"
+              "from another of the same type.")
+        )
+        self.layout.addWidget(self.sublabel)
+
+        self.close_paths_cb = FCCheckBox(_("Close paths"))
+        self.close_paths_cb.setToolTip(_("Checking this will close the paths cut by the Geometry substractor object."))
+        self.layout.addWidget(self.close_paths_cb)
+
+        self.layout.addStretch()

appGUI/preferences/tools/ToolsTransformPrefGroupUI.py

@@ -0,0 +1,261 @@
+from PyQt5 import QtWidgets, QtGui
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import FCDoubleSpinner, FCCheckBox, NumericalEvalTupleEntry, FCComboBox
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class ToolsTransformPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+
+        super(ToolsTransformPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("Transform Tool Options")))
+        self.decimals = decimals
+
+        # ## Transformations
+        self.transform_label = QtWidgets.QLabel("<b>%s:</b>" % _("Parameters"))
+        self.transform_label.setToolTip(
+            _("Various transformations that can be applied\n"
+              "on a application object.")
+        )
+        self.layout.addWidget(self.transform_label)
+
+        grid0 = QtWidgets.QGridLayout()
+        self.layout.addLayout(grid0)
+        grid0.setColumnStretch(0, 0)
+        grid0.setColumnStretch(1, 1)
+
+        # Reference Type
+        ref_label = QtWidgets.QLabel('%s:' % _("Reference"))
+        ref_label.setToolTip(
+            _("The reference point for Rotate, Skew, Scale, Mirror.\n"
+              "Can be:\n"
+              "- Origin -> it is the 0, 0 point\n"
+              "- Selection -> the center of the bounding box of the selected objects\n"
+              "- Point -> a custom point defined by X,Y coordinates\n"
+              "- Object -> the center of the bounding box of a specific object")
+        )
+        self.ref_combo = FCComboBox()
+        self.ref_items = [_("Origin"), _("Selection"), _("Point"), _("Object")]
+        self.ref_combo.addItems(self.ref_items)
+
+        grid0.addWidget(ref_label, 0, 0)
+        grid0.addWidget(self.ref_combo, 0, 1)
+
+        self.point_label = QtWidgets.QLabel('%s:' % _("Point"))
+        self.point_label.setToolTip(
+            _("A point of reference in format X,Y.")
+        )
+        self.point_entry = NumericalEvalTupleEntry()
+
+        grid0.addWidget(self.point_label, 1, 0)
+        grid0.addWidget(self.point_entry, 1, 1)
+
+        # Type of object to be used as reference
+        self.type_object_label = QtWidgets.QLabel('%s:' % _("Object"))
+        self.type_object_label.setToolTip(
+            _("The type of object used as reference.")
+        )
+
+        self.type_obj_combo = FCComboBox()
+        self.type_obj_combo.addItem(_("Gerber"))
+        self.type_obj_combo.addItem(_("Excellon"))
+        self.type_obj_combo.addItem(_("Geometry"))
+
+        self.type_obj_combo.setItemIcon(0, QtGui.QIcon(self.app.resource_location + "/flatcam_icon16.png"))
+        self.type_obj_combo.setItemIcon(1, QtGui.QIcon(self.app.resource_location + "/drill16.png"))
+        self.type_obj_combo.setItemIcon(2, QtGui.QIcon(self.app.resource_location + "/geometry16.png"))
+
+        grid0.addWidget(self.type_object_label, 3, 0)
+        grid0.addWidget(self.type_obj_combo, 3, 1)
+
+        # ## Rotate Angle
+        rotate_title_lbl = QtWidgets.QLabel('<b>%s</b>' % _("Rotate"))
+        grid0.addWidget(rotate_title_lbl, 4, 0, 1, 2)
+
+        self.rotate_entry = FCDoubleSpinner()
+        self.rotate_entry.set_range(-360.0, 360.0)
+        self.rotate_entry.set_precision(self.decimals)
+        self.rotate_entry.setSingleStep(15)
+
+        self.rotate_label = QtWidgets.QLabel('%s:' % _("Angle"))
+        self.rotate_label.setToolTip(
+            _("Angle for Rotation action, in degrees.\n"
+              "Float number between -360 and 359.\n"
+              "Positive numbers for CW motion.\n"
+              "Negative numbers for CCW motion.")
+        )
+        grid0.addWidget(self.rotate_label, 6, 0)
+        grid0.addWidget(self.rotate_entry, 6, 1)
+
+        # ## Skew/Shear Angle on X axis
+        skew_title_lbl = QtWidgets.QLabel('<b>%s</b>' % _("Skew"))
+        grid0.addWidget(skew_title_lbl, 8, 0)
+
+        # ## Link Skew factors
+        self.skew_link_cb = FCCheckBox()
+        self.skew_link_cb.setText(_("Link"))
+        self.skew_link_cb.setToolTip(
+            _("Link the Y entry to X entry and copy it's content.")
+        )
+
+        grid0.addWidget(self.skew_link_cb, 8, 1)
+
+        self.skewx_entry = FCDoubleSpinner()
+        self.skewx_entry.set_range(-360.0, 360.0)
+        self.skewx_entry.set_precision(self.decimals)
+        self.skewx_entry.setSingleStep(0.1)
+
+        self.skewx_label = QtWidgets.QLabel('%s:' % _("X angle"))
+        self.skewx_label.setToolTip(
+            _("Angle for Skew action, in degrees.\n"
+              "Float number between -360 and 359.")
+        )
+        grid0.addWidget(self.skewx_label, 9, 0)
+        grid0.addWidget(self.skewx_entry, 9, 1)
+
+        # ## Skew/Shear Angle on Y axis
+        self.skewy_entry = FCDoubleSpinner()
+        self.skewy_entry.set_range(-360.0, 360.0)
+        self.skewy_entry.set_precision(self.decimals)
+        self.skewy_entry.setSingleStep(0.1)
+
+        self.skewy_label = QtWidgets.QLabel('%s:' % _("Y angle"))
+        self.skewy_label.setToolTip(
+            _("Angle for Skew action, in degrees.\n"
+              "Float number between -360 and 359.")
+        )
+        grid0.addWidget(self.skewy_label, 10, 0)
+        grid0.addWidget(self.skewy_entry, 10, 1)
+
+        # ## Scale
+        scale_title_lbl = QtWidgets.QLabel('<b>%s</b>' % _("Scale"))
+        grid0.addWidget(scale_title_lbl, 12, 0)
+
+        # ## Link Scale factors
+        self.scale_link_cb = FCCheckBox(_("Link"))
+        self.scale_link_cb.setToolTip(
+            _("Link the Y entry to X entry and copy it's content.")
+        )
+        grid0.addWidget(self.scale_link_cb, 12, 1)
+
+        self.scalex_entry = FCDoubleSpinner()
+        self.scalex_entry.set_range(0, 9999.9999)
+        self.scalex_entry.set_precision(self.decimals)
+        self.scalex_entry.setSingleStep(0.1)
+
+        self.scalex_label = QtWidgets.QLabel('%s:' % _("X factor"))
+        self.scalex_label.setToolTip(
+            _("Factor for scaling on X axis.")
+        )
+        grid0.addWidget(self.scalex_label, 14, 0)
+        grid0.addWidget(self.scalex_entry, 14, 1)
+
+        # ## Scale factor on X axis
+        self.scaley_entry = FCDoubleSpinner()
+        self.scaley_entry.set_range(0, 9999.9999)
+        self.scaley_entry.set_precision(self.decimals)
+        self.scaley_entry.setSingleStep(0.1)
+
+        self.scaley_label = QtWidgets.QLabel('%s:' % _("Y factor"))
+        self.scaley_label.setToolTip(
+            _("Factor for scaling on Y axis.")
+        )
+        grid0.addWidget(self.scaley_label, 16, 0)
+        grid0.addWidget(self.scaley_entry, 16, 1)
+
+        # ## Offset
+        offset_title_lbl = QtWidgets.QLabel('<b>%s</b>' % _("Offset"))
+        grid0.addWidget(offset_title_lbl, 20, 0, 1, 2)
+
+        self.offx_entry = FCDoubleSpinner()
+        self.offx_entry.set_range(-9999.9999, 9999.9999)
+        self.offx_entry.set_precision(self.decimals)
+        self.offx_entry.setSingleStep(0.1)
+
+        self.offx_label = QtWidgets.QLabel('%s:' % _("X val"))
+        self.offx_label.setToolTip(
+           _("Distance to offset on X axis. In current units.")
+        )
+        grid0.addWidget(self.offx_label, 22, 0)
+        grid0.addWidget(self.offx_entry, 22, 1)
+
+        # ## Offset distance on Y axis
+        self.offy_entry = FCDoubleSpinner()
+        self.offy_entry.set_range(-9999.9999, 9999.9999)
+        self.offy_entry.set_precision(self.decimals)
+        self.offy_entry.setSingleStep(0.1)
+
+        self.offy_label = QtWidgets.QLabel('%s:' % _("Y val"))
+        self.offy_label.setToolTip(
+            _("Distance to offset on Y axis. In current units.")
+        )
+        grid0.addWidget(self.offy_label, 24, 0)
+        grid0.addWidget(self.offy_entry, 24, 1)
+
+        # ## Buffer
+        buffer_title_lbl = QtWidgets.QLabel('<b>%s</b>' % _("Buffer"))
+        grid0.addWidget(buffer_title_lbl, 26, 0)
+
+        self.buffer_rounded_cb = FCCheckBox()
+        self.buffer_rounded_cb.setText('%s' % _("Rounded"))
+        self.buffer_rounded_cb.setToolTip(
+            _("If checked then the buffer will surround the buffered shape,\n"
+              "every corner will be rounded.\n"
+              "If not checked then the buffer will follow the exact geometry\n"
+              "of the buffered shape.")
+        )
+
+        grid0.addWidget(self.buffer_rounded_cb, 26, 1)
+
+        self.buffer_label = QtWidgets.QLabel('%s:' % _("Distance"))
+        self.buffer_label.setToolTip(
+            _("A positive value will create the effect of dilation,\n"
+              "while a negative value will create the effect of erosion.\n"
+              "Each geometry element of the object will be increased\n"
+              "or decreased with the 'distance'.")
+        )
+
+        self.buffer_entry = FCDoubleSpinner()
+        self.buffer_entry.set_precision(self.decimals)
+        self.buffer_entry.setSingleStep(0.1)
+        self.buffer_entry.setWrapping(True)
+        self.buffer_entry.set_range(-9999.9999, 9999.9999)
+
+        grid0.addWidget(self.buffer_label, 28, 0)
+        grid0.addWidget(self.buffer_entry, 28, 1)
+
+        self.buffer_factor_label = QtWidgets.QLabel('%s:' % _("Value"))
+        self.buffer_factor_label.setToolTip(
+            _("A positive value will create the effect of dilation,\n"
+              "while a negative value will create the effect of erosion.\n"
+              "Each geometry element of the object will be increased\n"
+              "or decreased to fit the 'Value'. Value is a percentage\n"
+              "of the initial dimension.")
+        )
+
+        self.buffer_factor_entry = FCDoubleSpinner(suffix='%')
+        self.buffer_factor_entry.set_range(-100.0000, 1000.0000)
+        self.buffer_factor_entry.set_precision(self.decimals)
+        self.buffer_factor_entry.setWrapping(True)
+        self.buffer_factor_entry.setSingleStep(1)
+
+        grid0.addWidget(self.buffer_factor_label, 30, 0)
+        grid0.addWidget(self.buffer_factor_entry, 30, 1)
+
+        self.layout.addStretch()

appGUI/preferences/utilities/AutoCompletePrefGroupUI.py

@@ -0,0 +1,83 @@
+from PyQt5 import QtWidgets, QtGui
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import FCButton, FCTextArea, FCEntry
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class AutoCompletePrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+        # OptionsGroupUI.__init__(self, "Gerber File associations Preferences", parent=None)
+        super().__init__(self, parent=parent)
+
+        self.setTitle(str(_("Autocompleter Keywords")))
+        self.decimals = decimals
+
+        self.restore_btn = FCButton(_("Restore"))
+        self.restore_btn.setToolTip(_("Restore the autocompleter keywords list to the default state."))
+        self.del_all_btn = FCButton(_("Delete All"))
+        self.del_all_btn.setToolTip(_("Delete all autocompleter keywords from the list."))
+
+        hlay0 = QtWidgets.QHBoxLayout()
+        self.layout.addLayout(hlay0)
+        hlay0.addWidget(self.restore_btn)
+        hlay0.addWidget(self.del_all_btn)
+
+        # ## Gerber associations
+        self.grb_list_label = QtWidgets.QLabel("<b>%s:</b>" % _("Keywords list"))
+        self.grb_list_label.setToolTip(
+            _("List of keywords used by\n"
+              "the autocompleter in FlatCAM.\n"
+              "The autocompleter is installed\n"
+              "in the Code Editor and for the Tcl Shell.")
+        )
+        self.layout.addWidget(self.grb_list_label)
+
+        qsettings = QSettings("Open Source", "FlatCAM")
+        if qsettings.contains("textbox_font_size"):
+            tb_fsize = qsettings.value('textbox_font_size', type=int)
+        else:
+            tb_fsize = 10
+
+        self.kw_list_text = FCTextArea()
+        self.kw_list_text.setReadOnly(True)
+        # self.grb_list_text.sizeHint(custom_sizehint=150)
+        self.layout.addWidget(self.kw_list_text)
+        font = QtGui.QFont()
+        font.setPointSize(tb_fsize)
+        self.kw_list_text.setFont(font)
+
+        self.kw_label = QtWidgets.QLabel('%s:' % _("Extension"))
+        self.kw_label.setToolTip(_("A keyword to be added or deleted to the list."))
+        self.kw_entry = FCEntry()
+
+        hlay1 = QtWidgets.QHBoxLayout()
+        self.layout.addLayout(hlay1)
+        hlay1.addWidget(self.kw_label)
+        hlay1.addWidget(self.kw_entry)
+
+        self.add_btn = FCButton(_("Add keyword"))
+        self.add_btn.setToolTip(_("Add a keyword to the list"))
+        self.del_btn = FCButton(_("Delete keyword"))
+        self.del_btn.setToolTip(_("Delete a keyword from the list"))
+
+        hlay2 = QtWidgets.QHBoxLayout()
+        self.layout.addLayout(hlay2)
+        hlay2.addWidget(self.add_btn)
+        hlay2.addWidget(self.del_btn)
+
+        # self.layout.addStretch()

appGUI/preferences/utilities/FAExcPrefGroupUI.py

@@ -0,0 +1,102 @@
+from PyQt5 import QtWidgets, QtGui
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import VerticalScrollArea, FCButton, FCTextArea, FCEntry
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class FAExcPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+        # OptionsGroupUI.__init__(self, "Excellon File associations Preferences", parent=None)
+        super().__init__(self, parent=parent)
+
+        self.setTitle(str(_("Excellon File associations")))
+        self.decimals = decimals
+
+        self.layout.setContentsMargins(2, 2, 2, 2)
+
+        self.vertical_lay = QtWidgets.QVBoxLayout()
+        scroll_widget = QtWidgets.QWidget()
+
+        scroll = VerticalScrollArea()
+        scroll.setWidget(scroll_widget)
+        scroll.setWidgetResizable(True)
+        scroll.setFrameShape(QtWidgets.QFrame.NoFrame)
+
+        self.restore_btn = FCButton(_("Restore"))
+        self.restore_btn.setToolTip(_("Restore the extension list to the default state."))
+        self.del_all_btn = FCButton(_("Delete All"))
+        self.del_all_btn.setToolTip(_("Delete all extensions from the list."))
+
+        hlay0 = QtWidgets.QHBoxLayout()
+        hlay0.addWidget(self.restore_btn)
+        hlay0.addWidget(self.del_all_btn)
+        self.vertical_lay.addLayout(hlay0)
+
+        # # ## Excellon associations
+        list_label = QtWidgets.QLabel("<b>%s:</b>" % _("Extensions list"))
+        list_label.setToolTip(
+            _("List of file extensions to be\n"
+              "associated with FlatCAM.")
+        )
+        self.vertical_lay.addWidget(list_label)
+
+        qsettings = QSettings("Open Source", "FlatCAM")
+        if qsettings.contains("textbox_font_size"):
+            tb_fsize = qsettings.value('textbox_font_size', type=int)
+        else:
+            tb_fsize = 10
+
+        self.exc_list_text = FCTextArea()
+        self.exc_list_text.setReadOnly(True)
+        # self.exc_list_text.sizeHint(custom_sizehint=150)
+        font = QtGui.QFont()
+        font.setPointSize(tb_fsize)
+        self.exc_list_text.setFont(font)
+
+        self.vertical_lay.addWidget(self.exc_list_text)
+
+        self.ext_label = QtWidgets.QLabel('%s:' % _("Extension"))
+        self.ext_label.setToolTip(_("A file extension to be added or deleted to the list."))
+        self.ext_entry = FCEntry()
+
+        hlay1 = QtWidgets.QHBoxLayout()
+        self.vertical_lay.addLayout(hlay1)
+        hlay1.addWidget(self.ext_label)
+        hlay1.addWidget(self.ext_entry)
+
+        self.add_btn = FCButton(_("Add Extension"))
+        self.add_btn.setToolTip(_("Add a file extension to the list"))
+        self.del_btn = FCButton(_("Delete Extension"))
+        self.del_btn.setToolTip(_("Delete a file extension from the list"))
+
+        hlay2 = QtWidgets.QHBoxLayout()
+        self.vertical_lay.addLayout(hlay2)
+        hlay2.addWidget(self.add_btn)
+        hlay2.addWidget(self.del_btn)
+
+        self.exc_list_btn = FCButton(_("Apply Association"))
+        self.exc_list_btn.setToolTip(_("Apply the file associations between\n"
+                                       "FlatCAM and the files with above extensions.\n"
+                                       "They will be active after next logon.\n"
+                                       "This work only in Windows."))
+        self.vertical_lay.addWidget(self.exc_list_btn)
+
+        scroll_widget.setLayout(self.vertical_lay)
+        self.layout.addWidget(scroll)
+
+        # self.vertical_lay.addStretch()

appGUI/preferences/utilities/FAGcoPrefGroupUI.py

@@ -0,0 +1,89 @@
+from PyQt5 import QtWidgets, QtGui
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import FCButton, FCTextArea, FCEntry
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class FAGcoPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+        # OptionsGroupUI.__init__(self, "Gcode File associations Preferences", parent=None)
+        super(FAGcoPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("GCode File associations")))
+        self.decimals = decimals
+
+        self.restore_btn = FCButton(_("Restore"))
+        self.restore_btn.setToolTip(_("Restore the extension list to the default state."))
+        self.del_all_btn = FCButton(_("Delete All"))
+        self.del_all_btn.setToolTip(_("Delete all extensions from the list."))
+
+        hlay0 = QtWidgets.QHBoxLayout()
+        self.layout.addLayout(hlay0)
+        hlay0.addWidget(self.restore_btn)
+        hlay0.addWidget(self.del_all_btn)
+
+        # ## G-Code associations
+        self.gco_list_label = QtWidgets.QLabel("<b>%s:</b>" % _("Extensions list"))
+        self.gco_list_label.setToolTip(
+            _("List of file extensions to be\n"
+              "associated with FlatCAM.")
+        )
+        self.layout.addWidget(self.gco_list_label)
+
+        qsettings = QSettings("Open Source", "FlatCAM")
+        if qsettings.contains("textbox_font_size"):
+            tb_fsize = qsettings.value('textbox_font_size', type=int)
+        else:
+            tb_fsize = 10
+
+        self.gco_list_text = FCTextArea()
+        self.gco_list_text.setReadOnly(True)
+        # self.gco_list_text.sizeHint(custom_sizehint=150)
+        font = QtGui.QFont()
+        font.setPointSize(tb_fsize)
+        self.gco_list_text.setFont(font)
+
+        self.layout.addWidget(self.gco_list_text)
+
+        self.ext_label = QtWidgets.QLabel('%s:' % _("Extension"))
+        self.ext_label.setToolTip(_("A file extension to be added or deleted to the list."))
+        self.ext_entry = FCEntry()
+
+        hlay1 = QtWidgets.QHBoxLayout()
+        self.layout.addLayout(hlay1)
+        hlay1.addWidget(self.ext_label)
+        hlay1.addWidget(self.ext_entry)
+
+        self.add_btn = FCButton(_("Add Extension"))
+        self.add_btn.setToolTip(_("Add a file extension to the list"))
+        self.del_btn = FCButton(_("Delete Extension"))
+        self.del_btn.setToolTip(_("Delete a file extension from the list"))
+
+        hlay2 = QtWidgets.QHBoxLayout()
+        self.layout.addLayout(hlay2)
+        hlay2.addWidget(self.add_btn)
+        hlay2.addWidget(self.del_btn)
+
+        self.gco_list_btn = FCButton(_("Apply Association"))
+        self.gco_list_btn.setToolTip(_("Apply the file associations between\n"
+                                       "FlatCAM and the files with above extensions.\n"
+                                       "They will be active after next logon.\n"
+                                       "This work only in Windows."))
+        self.layout.addWidget(self.gco_list_btn)
+
+        # self.layout.addStretch()

appGUI/preferences/utilities/FAGrbPrefGroupUI.py

@@ -0,0 +1,89 @@
+from PyQt5 import QtWidgets, QtGui
+from PyQt5.QtCore import QSettings
+
+from appGUI.GUIElements import FCButton, FCTextArea, FCEntry
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+settings = QSettings("Open Source", "FlatCAM")
+if settings.contains("machinist"):
+    machinist_setting = settings.value('machinist', type=int)
+else:
+    machinist_setting = 0
+
+
+class FAGrbPrefGroupUI(OptionsGroupUI):
+    def __init__(self, decimals=4, parent=None):
+        # OptionsGroupUI.__init__(self, "Gerber File associations Preferences", parent=None)
+        super(FAGrbPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("Gerber File associations")))
+        self.decimals = decimals
+
+        self.restore_btn = FCButton(_("Restore"))
+        self.restore_btn.setToolTip(_("Restore the extension list to the default state."))
+        self.del_all_btn = FCButton(_("Delete All"))
+        self.del_all_btn.setToolTip(_("Delete all extensions from the list."))
+
+        hlay0 = QtWidgets.QHBoxLayout()
+        self.layout.addLayout(hlay0)
+        hlay0.addWidget(self.restore_btn)
+        hlay0.addWidget(self.del_all_btn)
+
+        # ## Gerber associations
+        self.grb_list_label = QtWidgets.QLabel("<b>%s:</b>" % _("Extensions list"))
+        self.grb_list_label.setToolTip(
+            _("List of file extensions to be\n"
+              "associated with FlatCAM.")
+        )
+        self.layout.addWidget(self.grb_list_label)
+
+        qsettings = QSettings("Open Source", "FlatCAM")
+        if qsettings.contains("textbox_font_size"):
+            tb_fsize = qsettings.value('textbox_font_size', type=int)
+        else:
+            tb_fsize = 10
+
+        self.grb_list_text = FCTextArea()
+        self.grb_list_text.setReadOnly(True)
+        # self.grb_list_text.sizeHint(custom_sizehint=150)
+        self.layout.addWidget(self.grb_list_text)
+        font = QtGui.QFont()
+        font.setPointSize(tb_fsize)
+        self.grb_list_text.setFont(font)
+
+        self.ext_label = QtWidgets.QLabel('%s:' % _("Extension"))
+        self.ext_label.setToolTip(_("A file extension to be added or deleted to the list."))
+        self.ext_entry = FCEntry()
+
+        hlay1 = QtWidgets.QHBoxLayout()
+        self.layout.addLayout(hlay1)
+        hlay1.addWidget(self.ext_label)
+        hlay1.addWidget(self.ext_entry)
+
+        self.add_btn = FCButton(_("Add Extension"))
+        self.add_btn.setToolTip(_("Add a file extension to the list"))
+        self.del_btn = FCButton(_("Delete Extension"))
+        self.del_btn.setToolTip(_("Delete a file extension from the list"))
+
+        hlay2 = QtWidgets.QHBoxLayout()
+        self.layout.addLayout(hlay2)
+        hlay2.addWidget(self.add_btn)
+        hlay2.addWidget(self.del_btn)
+
+        self.grb_list_btn = FCButton(_("Apply Association"))
+        self.grb_list_btn.setToolTip(_("Apply the file associations between\n"
+                                       "FlatCAM and the files with above extensions.\n"
+                                       "They will be active after next logon.\n"
+                                       "This work only in Windows."))
+
+        self.layout.addWidget(self.grb_list_btn)
+
+        # self.layout.addStretch()

appGUI/preferences/utilities/UtilPreferencesUI.py

@@ -0,0 +1,37 @@
+from PyQt5 import QtWidgets
+
+from appGUI.preferences.utilities.AutoCompletePrefGroupUI import AutoCompletePrefGroupUI
+from appGUI.preferences.utilities.FAGrbPrefGroupUI import FAGrbPrefGroupUI
+from appGUI.preferences.utilities.FAGcoPrefGroupUI import FAGcoPrefGroupUI
+from appGUI.preferences.utilities.FAExcPrefGroupUI import FAExcPrefGroupUI
+
+
+class UtilPreferencesUI(QtWidgets.QWidget):
+
+    def __init__(self, decimals, parent=None):
+        QtWidgets.QWidget.__init__(self, parent=parent)
+        self.layout = QtWidgets.QHBoxLayout()
+        self.setLayout(self.layout)
+        self.decimals = decimals
+
+        self.vlay = QtWidgets.QVBoxLayout()
+        self.fa_excellon_group = FAExcPrefGroupUI(decimals=self.decimals)
+        self.fa_excellon_group.setMinimumWidth(260)
+
+        self.fa_gcode_group = FAGcoPrefGroupUI(decimals=self.decimals)
+        self.fa_gcode_group.setMinimumWidth(260)
+
+        self.vlay.addWidget(self.fa_excellon_group)
+        self.vlay.addWidget(self.fa_gcode_group)
+
+        self.fa_gerber_group = FAGrbPrefGroupUI(decimals=self.decimals)
+        self.fa_gerber_group.setMinimumWidth(260)
+
+        self.kw_group = AutoCompletePrefGroupUI(decimals=self.decimals)
+        self.kw_group.setMinimumWidth(260)
+
+        self.layout.addLayout(self.vlay)
+        self.layout.addWidget(self.fa_gerber_group)
+        self.layout.addWidget(self.kw_group)
+
+        self.layout.addStretch()