FlatCAM: 2D Computer-Aided PCB Manufacturing
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(c) 2014-2019 Juan Pablo Caram

FlatCAM is a program for preparing CNC jobs for making PCBs on a CNC router.
Among other things, it can take a Gerber file generated by your favorite PCB
CAD program, and create G-Code for Isolation routing.

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23.04.2019

- Gerber Editor: added two new tools: Add Disc and Add SemiDisc (porting of Circle and Arc from Geometry Editor)
- Gerber Editor: made Add Pad repeat until user exits the Add Pad through either mouse right click, or ESC key or deselecting the Add Pad menu item
- Gerber and Geometry Editors: fixed some issues with the Add Arc/Add Semidisc; in mode 132, the norm() function was not the one from numpy but from a FlatCAM Class. Also fixed some of the texts and made sure that when changing the mode, the current points are reset to prepare for the newly selected mode.
- Fixed Measurement Tool to show the mouse coordinates on the status bar (it was broken at some point)
- updated the translation files
- added more custom mouse cursors in Geometry and Gerber Editors
- RELEASE 8.914

22.04.2019

- added PDF file as type in the Recent File list and capability to load it from there
- PDF's can be drag & dropped on the GUI to be loaded
- PDF import tool: added support for save/restore Graphics stack. Only for scale and offset transformations and for the linewidth. This is the final fix for Microsoft PDF printer who saves in PDF format 1.7
- PDF Import tool: added support for PDF files that embed multiple Gerber layers (top, bottom, outline, silkscreen etc). Each will be opened in it's own Gerber file. The requirement is that each one is drawn in a different color
- PDF Import tool: fixed bugs when drag & dropping PDF files on canvas the files geometry previously opened was added to the new one. Also scaling issues. Solved.
- PDF Import tool: added support for detection of circular geometry drawn with white color which means actually invisible color. When detected, FlatCAM will build an Excellon file out of those geoms.
- PDF Import tool: fixed storing geometries in apertures with the right size (before they were all stored in aperture D10)

21.04.2019

- fixed the PDF import tool to work with files generated by the Microsoft PDF printer (chained subpaths)
- in PDF import tool added support for paths filled and at the same time stroked ('B' and 'B*'commands)
- added a shortcut key for PDF Import Tool (ALT+Q) and updated the Shortcut list (also with the 'T' and 'R' keys for Gerber Editor where they control the bend in Track and Region tool and the 'M' and 'D' keys for Add Arc tool in Geometry Editor)

20.04.2019

- finished adding the PDF import tool although it does not support all kinds of outputs from PDF printers. Microsoft PDF printer is not supported.

19.04.2019

- started to work on PDF import tool


18.04.2019

- Gerber Editor: added custom mouse cursors for each mode in Add Track Tool
- Gerber Editor: Poligonize Tool will first fuse polygons that touch each other and at a second try will create a polygon. The polygon will be automatically moved to Aperture '0' (regions).
- Gerber Editor: Region Tool will add regions only in '0' aperture
- Gerber Editor: the bending mode will now survive until the tool is exited
- Gerber Editor: solved some bugs related with deleting an aperture and updating the last_selected_aperture

17.04.2019

- Gerber Editor: added some messages to warn user if no selection exists when trying to do aperture deletion or aperture geometry deletion
- fixed version check
- added custom mouse cursors for some tools in Gerber Editor
- Gerber Editor: added multiple modes to lay a Region: 45-degrees, reverse 45-degrees, 90-degrees, reverse 90-degrees and free-angle. Added also key shortcuts 'T' and 'R' to cycle forward, respectively in reverse through the modes.
- Excellon Editor: fixed issue not remembering last tool after adding a new tool
- added custom mouse cursors for Excellon and Geometry Editors in some of their tools

16.04.2019

- added ability to use ENTER key to finish tool adding in Editors, NCC Tool, Paint Tool and SolderPaste Tool.
- Gerber Editor: started to add modes of laying a track
- Gerber Editor: Add Track Tool: added 5 modes for laying a track: 45-degrees, reverse-45 degrees, 90-degrees, reverse 90-degrees and free angle. Key 'T' will cycle forward through the modes and key 'R' will cycle in reverse through the track laying modes.
- Gerber Editor: Add Track Tool: first right click will finish the track. Second right click will exit the Track Tool and return to Select Tool.
- Gerber Editor: added protections for the Pad Array and Pad Tool for the case when the aperture size is zero (the aperture where to store the regions)

15.04.2019

- working on a new tool to process automatically PcbWizard Excellon files which are generated in 2 files
- finished ToolPcbWizard; it will autodetect the Excellon format, units from the INF file
- Gerber Editor: reduced the delay to show UI when editing an empty Gerber object
- update the order of event handlers connection in Editors to first connect new handlers then disconnect old handlers. It seems that if nothing is connected some VispY functions like canvas panning no longer works if there is at least once nothing connected to the 'mouse_move' event
- Excellon Editor: update so always there is a tool selected even after the Excellon object was just edited; before it always required a click inside of the tool table, not you do it only if needed.
- fixed the menu File -> Edit -> Edit/Close Editor entry to reflect the status of the app (Editor active or not)
- added support in Excellon parser for autodetection of Excellon file format for the Excellon files generated by the following ECAD sw: DipTrace, Eagle, Altium, Sprint Layout
- Gerber Editor: finished a new tool: Poligonize Tool (ALT+N in Editor). It will fuse a selection of tracks into a polygon. It will fill a selection of polygons if they are apart and it will make a single polygon if the selection is overlapped. All the newly created filled polygons will be stored in aperture '0' (if it does not exist it will be automatically created)
- fixed a bug in Move command in context menu who crashed the app when triggered
- Gerber Editor: when adding a new aperture it will be store as the last selected and it will be used for any tools that are triggered until a new aperture is selected.

14.04.2019

- Gerber Editor: Remade the processing of 'clear_geometry' (geometry generated by polygons made with Gerber LPC command) to work if more than one such polygon exists
- Gerber Editor: a disabled/enabled sequence for the VisPy cursor on Gerber edit make the graphics better
- Editors: activated an old function that was no longer active: each tool can have it's own set of shortcut keys, the Editor general shortcut keys that are letters are overridden
- Gerber and Geometry editors, when using the Backspace keys for certain tools, they will backtrack one point but now the utility geometry is immediately updated
- In Geometry Editor I fixed bug in Arc modes. Arc mode shortcut key is now key 'M' and arc direction change shortcut key is 'D'
- moved the key handler out of the Measurement tool to flatcamGUI.FlatCAMGui.keyPressEvent()
- Gerber Editor: started to add new function of poligonize which should make a filled polygon out of a shape
- cleaned up Measuring Tool
- solved bug in Gerber apertures size and dimensions values conversion when file units are different than app units

13.04.2019

- updating the German translation
- Gerber Editor: added ability to change on the fly the aperture after one of the tools: Add Pad or Add Pad Array is activated
- Gerber Editor: if a tool is cancelled via key shortcut ESCAPE, the selection is now deleted and any other action require a new selection
- finished German translation (Google translated with some adjustments)
- final fix for issue #277. Previous fix was applied only for one case out of three.
- RELEASE 8.913

12.04.2019

- Gerber Editor: added support for Oblong type of aperture
- fixed an issue with automatically filled in aperture code when the edited Gerber file has no apertures; established an default with value 10 (according to Gerber specifications)
- fixed a bug in editing a blank Gerber object
- added handlers for the Gerber Editor context menu
- updated the translation template POT file and the EN PO/MO files
- Gerber Editor: added toggle effect to the Transform Tool
- Gerber Editor: added shortcut for Transform Tool and also toggle effect here, too
- updated the shortcut list with the Gerber Editor shortcut keys
- Gerber Editor: fixed error when adding an aperture with code value lower than the ones that already exists
- when adding an aperture with code '0' (zero) it will automatically be set with size zero and type: 'REG' (from region); here we store all the regions from a Gerber file, the ones without a declared aperture
- Gerber Editor: added support for Gerber polarity change commands (LPD, LPC)
- moved the polarity change processing from FlatCAMGrbEditor() class to camlib.Gerber().parse_lines()
- made optional the saving of an edited object. Now the user can cancel the changes to the object.
- replaced the standard buttons in the QMessageBox's used in the app with custom ones that can have text translated
- updated the POT translation file and the MO/PO files for English and Romanian language

11.04.2019

- changed the color of the marked apertures to the global_selection_color
- Gerber Editor: added Transformation Tool and Rotation key shortcut
- in all Editors, manually deactivating a button in the editor toolbar will automatically select the 'Select' button
- fixed Excellon Editor selection: when a tool is selected in Tools Table, all the drills belonging to that tool are selected. When a drill is selected on canvas, the associated tool will be selected without automatically selecting all other drills with same tool
- Gerber Editor: added Add Pad Array tool
- Gerber Editor: in Add Pad Array tool, if the pad is not circular type, for circular array the pad will be rotated to match the array angle
- Gerber Editor: fixed multiple selection with key modifier such that first click selects, second deselects

10.04.2019

- Gerber Editor: added Add Track and Add Region functions
- Gerber Editor: fixed key shortcuts
- fixed setting the Layout combobox in Preferences according to the current layout
- created menu links and shortcut keys for adding a new empty Gerber objects; on update of the edited Gerber, if the source object was an empty one (new blank one) this source obj will be deleted
- removed the old apertures editing from Gerber Obj selected tab
- Gerber Editor: added Add Pad (circular or rectangular type only)
- Gerber Editor: autoincrement aperture code when adding new apertures
- Gerber Editor: automatically calculate the size of the rectangular aperture

9.04.2019

- Gerber Editor: added buffer and scale tools
- Gerber Editor: working on aperture selection to show on Aperture Table
- Gerber Editor: finished the selection on canvas; should be used as an template for the other Editors
- Gerber Editor: finished the Copy, Aperture Add, Buffer, Scale, Move including the Utility geometry
- Trying to fix bug in Measurement Tool: the mouse events don't disconnect
- fixed above bug in Measurement Tool (but there is a TODO there)

7.04.2019

- default values for Jump To function is jumping to origin (0, 0)

6.04.2019

- fixed bug in Geometry Editor in buffer_int() function that created an Circular Reference Error when applying buffer interior on a geometry.
- fixed issue with not possible to close the app after a project save.
- preliminary Gerber Editor.on_aperture_delete() 
- fixed 'circular reference' error when creating the new Gerber file in Gerber Editor
- preliminary Gerber Editor.on_aperture_add()

5.04.2019

- Gerber Editor: made geometry transfer (which is slow) to Editor to be multithreaded
- Gerber Editor: plotting process is showed in the status bar
- increased the number of workers in FlatCAM and made the number of workers customizable from Preferences
- WIP in Gerber Editor: geometry is no longer stored in a Rtree storage as it is not needed
- changed the way delayed plot is working in Gerber Editor to use a Qtimer instead of python threading module
- WIP in Gerber Editor
- fixed bug in saving the maximized state
- fixed bug in applying default language on first start
~~- on activating 'V' key shortcut (zoom fit) the mouse cursor is now jumping to origin (0, 0)~~
- fixed bug in saving toolbars state; the file was saved before setting the self.defaults['global_toolbar_view]

4.04.2019

- added support for Gerber format specification D (no zero suppression) - PCBWizard Gerber files support
- added support for Excellon file with no info about tool diameters - PCB Wizard Excellon file support
- modified the bogus diameters series for Excellon objects that do not have tool diameter info
- made Excellon Editor aware of the fact that the Excellon object that is edited has fake (bogus) tool diameters and therefore it will not sort the tools based on diameter but based on tool number
- fixed bug on Excellon Editor: when diameter is edited in Tools Table and the target diameter is already in the tool table, the drills from current tool are moved to the new tool (with new dia) - before it crashed
- fixed offset after editing drill diameters in Excellon Editor.

3.04.2019

- fixed plotting in Gerber Editor
- working on GUI in Gerber Editor
- added a Gcode end_command: default is M02
- modified the calling of the editor2object() slot function to fix an issue with updating geometry imported from SVG file, after edit
- working on Gerber Editor - added the key shortcuts: wip
- made saving of the project file non-blocking and also while saving the project file, if the user tries again to close the app while project file is being saved, the app will close only after saving is complete (the project file size is non zero)
- fixed the camlib.Geometry.import_svg() and camlib.Gerber.bounds() to work when importing SVG files as Gerber

31.03.2019

- fixed issue #281 by making generation of a convex shape for the freeform cutout in Tool Cutout a choice rather than the default
- fixed bug in Tool Cutout, now in manual cutout mode the gap size reflect the value set
- changed Measuring Tool to use the mouse click release instead of mouse click press; also fixed a bug when using the ESC key.
- fixed errors when the File -> New Project is initiated while an Editor is still active.
- the File->Exit action handler is now self.final_save() 
- wip in Gerber editor

29.03.2019

- update the TCL keyword list
- fix on the Gerber parser that makes searching for '%%' char optional when doing regex search for mode, units or image polarity. This allow loading Gerber files generated by the ECAD software TCl4.4
- fix error in plotting Excellon when toggling units
- FlatCAM editors now are separated each in it's own file
- fixed TextTool in Geometry Editor so it will open the notebook on activation and close it after finishing text adding
- started to work on a Gerber Editor
- added a fix in the Excellon parser by allowing a comma in the tool definitions between the diameter and the rest

28.03.2019

- About 45% progress in German translation
- new feature: added ability to edit MultiGeo geometry (geometry from Paint Tool)
- changed all the info messages that are of type warning, error or success so they have a space added after the keyword
- changed the Romanian translation by adding more diacritics  
- modified Gerber parser to copy the follow_geometry in the self.apertures
- modified the Properties Tool to show the number of elements in the follow_geometry for each aperture
- modified the copy functions to copy the follow_geometry and also the apertures if it's possible (only for Gerber objects)

27.03.2019

- added new feature: user can delete apertures in Advanced mode and then create a new FlatCAM Gerber object
- progress in German translation. About 27% done.
- fixed issue #278. Crash on name change in the Name field in the Selected Tab.

26.03.2019

- fixed an issue where the Geometry plot function protested that it does not have an parameter that is used by the CNCJob plot function. But both inherit from FaltCAMObj plot function which does not have that parameter so something may need to be changed. Until then I provided a phony keyboard parameter to make that function 'shut up'
- fixed bug: after using Paint Tool shortcut keys are disabled
- added CNCJob geometry for the holes created by the drills from Excellon objects

25.03.2019

- in the TCL completer if the word is already complete don't add it again but add a space
- added all the TCL keywords in the completer keyword list
- work in progress in German translation ~7%
- after any autocomplete in TCL completer, a space is added
- fixed an module import issue in NCC Tool
- minor change (optimization) of the CNCJob UI
- work in progress in German translation ~20%

22.03.2019

- fixed an error that created a situation that when saving a project with some of the CNCJob objects disabled, on project reload the CNCJob objects are no longer loaded
- fixed the Gerber.merge() function. When some of the Gerber files have apertures with same id, create a new aperture id for the object that is fused because each aperture id may hold different geometries.
- changed the autoname for saving Preferences, Project and PNG file

20.03.2019

- added autocomplete finish with ENTER key for the TCL Shell
- made sure that the autocomplete function works only for FlatCAM Scripts
- ESC key will trigger normal view if in full screen and the ESC key is pressed
- added an icon and title text for the Toggle Units QMessageBox

19.03.2019

- added autocomplete for Code editor;
- autocomplete in Code Editor is finished by hitting either TAB key or ENTER key
- fixed the Gerber.merge() to work for the case when one of the merged Gerber objects solid_geometry type is Polygon and not a list

18.03.2019

- added ability to create new scripts and open scripts in FlatCAM Script Editor
- the Code Editor tab name is changed according to the task; 'save' and 'open' buttons will have filters installed for the QOpenDialog fit to the task
- added ability to run a FlatCAM Tcl script by double-clicking on the file
- in Code Editor added shortcut combo key CTRL+SHIFT+V to function as a Special Paste that will replace the '\' char with '/' so the Windows paths will be pasted correctly for TCL Shell. Also doing SHIFT + LMB on the Paste in contextual menu is doing the same.

17.03.2019

- remade the layout in 2Sided Tool
- work in progress for translation in Romanian - 91%
- changed some of the app strings formatting to work better with Poedit translation software
- fixed bug in Drillcncjob TclCommand
- finished translation in Romanian
- made the translations work when the app is frozen with CX_freeze
- some formatting changes for the application strings
- some changes on how the first layout is applied
- minor bug fixes (typos from copy/paste from another part of the program)

16.03.2019

- fixed bug in Paint Tool - Single Poly: no geometry was generated
- work in progress for translation in Romanian - 70%

13.03.2019

- made the layout combobox current item from Preferences -> General window to reflect the current layout
- remade the POT translate file
- work in progress in translation for Romanian language 44%
- fix for showing tools by activating them from the Menu - final fix.

11.03.2019

- changed some icons here and there
- fixed the Properties Project menu entry to work on the new way
- in Properties tool now the Gerber apertures show the number of polygons in 'solid_geometry' instead of listing the objects
- added a visual cue in Menu -> Edit about the entries to enter the Editor and to Save & Exit Editor. When one is enabled the other is disabled.
- grouped all the UI files in flatcamGUI folder
- grouped all parser files in flatcamParsers folder
- another changes to the final_save() function
- some strings were left outside the translation formatting - fixed
- finished the replacement of '_' symbols throughout the app which conflicted with the _() function used by the i18n
- reverted changes in Tools regarding the toggle effect - now they work as expected

10.03.2019

- added a fix in the Gerber parser when adding the geometry in the self.apertures dict for the case that the current aperture is None (Allegro does that)
- finished support for internationalization by adding a set of .po/.mo files for the English language. Unfortunately the final action can be done only when Beta will be out of Beta (no more changes) or when I will decide to stop working on this app.
- changed the tooltip for 'feedrate_rapids' parameter to point out that this parameter is useful only for the Marlin postprocessor
- fix app crash for the case that there are no translation files
- fixed some forgotten strings to be prepared for internationalization in ToolCalculators
- fixed Tools menu no longer working due of changes
- added some test translation for the ToolCalculators (in Romanian)
- fixed bug in ToolCutOut where for each tool invocation the signals were reconnected
- fixed some issues with ToolMeasurement due of above changes
- updated the App.final_save() function
- fixed an issue created by the fact that I used the '_' char inside the app to designate unused info and that conflicted with the _() function used by gettext
- made impossible to try to reapply current language that it's already applied (un-necessary)

8.03.2019

- fixed issue when doing th CTRL (or SHIFT) + LMB, the focus is automatically moved to Project Tab
- further work in internationalization, added a fallback to English language in case there is no translation for a string
- fix for issue #262: when doing Edit-> Save & Close Editor on a Geometry that is not generated through first entering into an Editor, the geometry disappear
- finished preparing for internationalization for the files: camlib and objectCollection
- fixed tools shortcuts not working anymore due of the new toggle parameter for the .run().
- finished preparing for internationalization for the files: FlatCAMEditor, FlatCAMGUI
- finished preparing for internationalization for the files: FlatCAMObj, ObjectUI
- sorted the languages in the Preferences combobox

7.03.2019

- made showing a shape when hovering over objects, optional, by adding a Preferences -> General parameter
- starting to work in internationalization using gettext()
- Finished adding _() in FlatCAM Tools
- fixed Measuring Tool - after doing a measurement the Notebook was switching to Project Tab without letting the user see the results
- more work on the translation engine; the app now restarts after a language is applied
- added protection against using Travel Z parameter with negative or zero value (in Geometry).
- made sure that when the Measuring Tools is active after last click the Status bar is no longer deleted

6.03.2019

- modified the way the FlatCAM Tools are run from toolbar as opposed of running them from other sources
- some Gerber UI changes

5.03.2019

- modified the grbl-laser postprocessor lift_code()
- treated an error created by Z_Cut parameter being None
- changed the hover and selection box transparency

4.03.2019

- finished work on object hovering
- fixed Excellon object move and all the other transformations
- starting to work on Manual Cutout Tool
- remade the CutOut Tool
- finished Manual Cutout Tool by adding utility geometry to the cutting geometry
- added CTRL + click behavior for adding manual bridge gaps in Cutout Tool
- in Tool Cutout added shortcut key 'Escape' to cancel the current adding of bridge gaps

3.03.2019

- minor UI changes for Gerber UI
- ~~after an object move, the apertures plotted shapes are deleted from canvas and the 'mark all' button is deselected~~
- after move tool action or any other transform (rotate, skew, scale, mirror, offset), the plotted apertures are kept plotted.
- changing units now will convert all the default values from one unit type to another
- prettified the selection shape and the moving shape
- initial work in object hovering shape

02.03.2019

- fixed offset, rotate, scale, skew for follow_geometry. Fixed the move tool also.
- fixed offset, rotate, scale, skew for 'solid_geometry' inside the self.apertures.

28.02.2019

- added a change that when a double click is performed in a object on canvas resulting in a selection, if the notebook is hidden then it will be displayed
- progress in ToolChange Custom commands replacement and rename

27.02.2019

- made the Custom ToolChange Text area in CNCJob Selected Tab depend on the status of the ToolChange Enable Checkbox even in the init stage.
- added some parameters throughout camlib gcode generation functions; handled some possible errors (e.g like when attempting to use an empty Custom GCode Toolchange)
- added toggle effect for the tools in the toolbar.
- enhanced the toggle effect for the tools in the Tools Toolbar and also for Notebook Tab selection: if the current tool is activated it will toggle the notebook side but only if the installed widget is itself. If coming from another tool, the notebook will stay visible
- upgraded the Tool Cutout when done from Gerber file to create a convex_hull around the Gerber file rather than trying to isolate it
- added some protections for the FlatCAM Tools run after an object was loaded

26.02.2019

- added a function to read the parameters from ToolChange macro Text Box (I need to move it from CNCJob to Excellon and Geometry)
- fixed the geometry adding to the self.apertures in the case when regions are done without declaring any aperture first (Allegro does that). Now, that geometry will be stored in the '0' aperture with type REG
- work in progress to Toolchange_Custom code replacement -> finished the parse and replace function
- fixed mouse selection on canvas, mouse drag, mouse click and mouse double click
- fixed Gerber Aperture Table dimensions
- added a Mark All button in the Gerber aperture table.
- because adding shapes to the shapes collection (when doing Mark or Mark All) is time consuming I made the plot_apertures() threaded.
- made the polygon fusing in modified Gerber creation, a list comprehension in an attempt for optimization
- when right clicking the files in Project tab, the Save option for Excellon no longer export it but really save the original. 
- in ToolChange Custom Code replacement, the Text Box in the CNCJob Selected tab will be active only if there is a 'toolchange_custom' in the name of the postprocessor file. This assume that it is, or was created having as template the Toolchange Custom postprocessor file.


25.02.2019

- fixed the Gerber object UI layout
- added ability to mark individual apertures in Gerber file using the Gerber Aperture Table
- more modifications for the Gerber UI layout; made 'follow' an advanced Gerber option
- added in Preferences a new Category: Gerber Advanced Options. For now it controls the display of Gerber Aperture Table and the "follow" attribute4
- fixed FlatCAMGerber.merge() to merge the self.apertures[ap]['solid_geometry'] too
- started to work on a new feature that allow adding a ToolChange GCode macro - GUI added both in CNCJob Selected tab and in CNCJob Preferences
- added a limited 'sort-of' Gerber Editor: it allows buffering and scaling of apertures

24.02.2019

- fixed a small bug in the Tool Solder Paste: the App don't take into consideration pads already filled with solder paste.
- prettified the defaults files and the recent file. Now they are ordered and human readable
- added a Toggle Code Editor Menu and key shortcut
- added the ability to open FlatConfig configuration files in Code Editor, Modify them and then save them.
- added ability to double click the FlatConfig files and open them in the FlatCAM Code Editor (to be verified)
- when saving a file from Code Editor and there is no object active then the OpenFileDialog filters are reset to FlatConfig files.
- reverted a change in GCode that might affect Gerber polarity change in Gerber parser
- ability to double click the FlatConfig files and open them in the FlatCAM Code Editor - fixed and verified
- fixed the Set To Origin function when Escape was clicked
- added all the Tools in a new ToolBar
- fixed bug that after changing the layout all the toolbar actions are no longer working
- fixed bug in Set Origin function
- fixed a typo in Toolchange_Probe_MACH3 postprocessor

23.02.2019

- remade the SolderPaste geometry generation function in ToolSoderPaste to work in certain scenarios where the Gerber pads in the SolderPaste mask Gerber may be just pads outlines
- updated the Properties Tool to include more information's, also details if a Geometry is of type MultiGeo or SingleGeo
- remade the Preferences GUI to include the Advanced Options in a separate way so it is obvious which are displayed when App Level is Advanced.
- added protection, not allowing the user to make a Paint job on a MultiGeo geometry (one that is converted in the Edit -> Conversion menu)) because it is not supported

22.02.2019

- added Repetier postprocessor file
- removed "added ability to regenerate objects (it's actually deletion followed by recreation)" because of the way Python pass parameters to functions by reference instead of copy
- added ability to toggle globally the display of ToolTips. Edit -> Preferences -> General -> Enable ToolTips checkbox.
- added true fullscreen support (for Windows OS)
- added the ability of context menu inside the GuiElements.FCCombobox() object.
- remade the UI for ToolSolderPaste. The object comboboxes now have context menu's that allow object deletion. Also the last object created is set as current item in comboboxes.
- some GUI elements changes

21.02.2019

- added protection against creating CNCJob from an empty Geometry object (with no geometry inside)
- changed the shortcut key for YouTube channel from F2 to key F4
- changed the way APP LEVEL is showed both in Edit -> Preferences -> General tab and in each Selected Tab. Changed the ToolTips content for this.
- added the functions for GCode View and GCode Save in Tool SolderPaste
- some work in the Gcode generation function in Tool SolderPaste
- added protection against trying to create a CNCJob from a solder_paste dispenser geometry. This one is different than the default Geometry and can be handled only by SolderPaste Tool.
- ToolSolderPaste tools (nozzles) now have each it's own settings
- creating the camlib functions for the ToolSolderPaste gcode generation functions
- finished work in ToolSolderPaste
- fixed issue with not updating correctly the plot kind (all, cut, travel) when clicking in the CNC Tools Table plot buttons
- made the GCode Editor for ToolSolderPaste clear the text before updating the Code Editor tab
- all the Tabs in Plot Area are closed (except Plot Area itself) on New Project creation
- added ability to regenerate objects (it's actually deletion followed by recreation)

20.02.2019

- finished added a Tool Table for Tool SolderPaste
- working on multi tool solder paste dispensing
- finished the Edit -> Preferences defaults section
- finished the UI, created the postprocessor file template
- finished the multi-tool solder paste dispensing: it will start using the biggest nozzle, fill the pads it can, and then go to the next smaller nozzle until there are no pads without solder.

19.02.2019

- added the ability to compress the FlatCAM project on save with LZMA compression. There is a setting in Edit -> Preferences -> Compression Level between 0 and 9. 9 level yields best compression at the price of RAM usage and time spent.
- made FlatCAM able to load old type (uncompressed) FlatCAM projects
- fixed issue with not loading old projects that do not have certain information's required by the new versions of FlatCAM
- compacted a bit more the GUI for Gerber Object
- removed the Open Gerber with 'follow' menu entry and also the open_gerber Tcl Command attribute 'follow'. This is no longer required because now the follow_geometry is stored by default in a Gerber object attribute gerber_obj.follow_geometry
- added a new parameter for the Tcl CommandIsolate, named: 'follow'. When follow = 1 (True) the resulting geometry will follow the Gerber paths.
- added a new setting in Edit -> Preferences -> General that allow to select the type of saving for the FlatCAM project: either compressed or uncompressed. Compression introduce an time overhead to the saving/restoring of a FlatCAM project.
- started to work on Solder Paste Dispensing Tool
- fixed a bug in rotate from shortcut function
- finished generating the solder paste dispense geometry

18.02.2019

- added protections again wrong values for the Buffer and Paint Tool in Geometry Editor
- the Paint Tool in Geometry Editor will load the default values from Tool Paint in Preferences
- when the Tools in Geometry Editor are activated, the notebook with the Tool Tab will be unhidden. After execution the notebook will hide again for the Buffer Tool.
- changed the font in Tool names
- added in Geometry Editor a new Tool: Transformation Tool.
- in Geometry Editor by selecting a shape with a selection shape, that object was added multiple times (one per each selection) to the selected list, which is not intended. Bug fixed.
- finished adding Transform Tool in Geometry Editor - everything is working as intended
- fixed a bug in Tool Transform that made the user to not be able to capture the click coordinates with SHIFT + LMB click combo
- added the ability to choose an App QStyle out of the offered choices (different for each OS) to be applied at the next app start (Preferences -> General -> Gui Pref -> Style Combobox)
- added support for FlatCAM usage with High DPI monitors (4k). It is applied on the next app startup after change in Preferences -> General -> Gui Settings -> HDPI Support Checkbox
- made the app not remember the window size if the app is maximized and remember in QSettings if it was maximized. This way we can restore the maximized state but restore the windows size unmaximized
- added a button to clear the GUI preferences in Preferences -> General -> Gui Settings -> Clear GUI Settings
- added key shortcuts for the shape transformations within Geometry Editor: X, Y keys for Flip(mirror), SHIFT+X, SHIFT+Y combo keys for Skew and ALT+X, ALT+Y combo keys for Offset
- adjusted the plotcanvas.zomm_fit() function so the objects are better fit into view (with a border around) 
- modified the GUI in Objects Selected Tab to accommodate 2 different modes: basic and Advanced. In Basic mode, some of the functionality's are hidden from the user.
- added Tool Transform preferences in Edit -> Preferences and used them through out the app
- made the output of Panelization Tool a choice out of Gerber and Geometry type of objects. Useful for those who want to engrave multiple copies of the same design.

17.02.2019

- changed some status bar messages
- New feature: added the capability to view the source code of the Gerber/Excellon file that was loaded into the app. The file is also stored as an object attribute for later use. The view option is in the project context menu and in Menu -> Options -> View Source
- Serialized the source_file of the Objects so it is saved in the FlatCAM project and restored.
- if there is a single tool in the tool list (Geometry , Excellon) and the user click the Generate GCode, use that tool even if it is not selected
- fixed issue where after loading a project, if the default kind of CNCjob view is only 'cuts' the plot will revert to the 'all' type
- in Editors, if the modifier key set in Preferences (CTRL or SHIFT key) is pressed at the end of one tool operation it will automatically continue to that action until the modifier is no longer pressed when Select tool will be automatically selected.
- in Geometry Editor, on entry the notebook is automatically hidden and restored on Geometry Editor exit.
- when pressing Escape in Geometry Editor it will automatically deselect any shape not only the currently selected tool.
- when deselecting an object in Project menu the status bar selection message is deleted
- added ability to save the Gerber file content that is stored in FlatCAM on Gerber file loading. It's useful to recover from saved FlatCAM projects when the source files are no longer available.
- fixed an issue where the function handler that changed the layout had a parameter changed accidentally by an index value passed by the 'activate' signal to which was connected
- fixed bug in paint function in Geometry Editor that didn't allow painting due of overlap value

16.02.2019

- added the 'Save' menu entry to the Project context menu, for CNCJob: it will export the GCode.
- added messages in info bar when selecting objects in the Project View list
- fixed DblSided Tool so it correctly creates the Alignment Drills Excellon file using the new structure
- fixed DblSided Tool so it will not crash the app if the user tries to make a mirror using no coordinates
- added some relevant status bar messages in DblSided Tool
- fixed DblSided Tool to correctly use the Box object (until now it used as reference only Gerber object in spite of Excellon or Geometry objects being available)
- fixed DblSided Tool crash when trying to create Alignment Drills object without a Tool diameter specified
- fixed DblSided Tool issue when entering Tool diameter values with comma decimal separator instead of decimal dot separator
- fixed Cutout Tool Freeform to generate cutouts with options: LR, TB. 2LR, 2TB which didn't worked previously
- fixed Excellon parser to detect correctly the units and zeros for Excellon's generated by Eagle 9.3.0
- modified the initial size of the canvas on startup
- modified the build file (make_win.py) to solve the issue with suddenly not accepting the version as Beta
- changed the initial layout to 'compact'
- updated the install scripts to uninstall a previously installed FlatCAM Beta (that has the same GUID)

15.02.2019

- rearranged the File and Edit menu's and added some explanatory tooltips on certain menu items that could be seen as cryptic
- added Excellon Export Options in Edit -> Preferences
- started to work in using the Excellon Export parameters
- remade the Excellon export function to work with parameters entered in Edit -> Preferences -> Excellon Export
- added a new entry in the Project Context Menu named 'Save'. It will actually work for Geometry and it will do Export DXF and for Excellon and it will do Export Excellon
- reworked the offer to save a project so it is done only if there are objects in the project but those objects are new and/or are modified since last project load (if an old project was loaded.)
- updated the Excellon plot function so it can plot the Excellon's from old projects
- removed the message boxes that popup on Excellon Export errors and replaced them with status bar messages
- small change in tab width so the tabs looks good in Linux, too.

14.02.2019

- added total travel distance for CNCJob object created from Excellon Object in the CNCJob Selected tab
- added 'FlatCAM ' prefix to any detached tab, for easy identification
- remade the Grids context menu (right mouse button click on canvas). Now it has values linked to the units type (inch or mm). Added ability to add or delete grid values and they are persistent.
- updated the function for the project context menu 'Generate CNC' menu entry (Action) to use the modernized function FlatCAMObj.FlatCAMGeometry.on_generatecnc_button_click()
- when linked, the grid snap on Y will copy the value in grid snap on X in real time
- in Gerber aperture table now the values are displayed in the current units set in FlatCAM
- added shortcut key 'J' (jump to location) in Editors and added an icon to the dialog popup window
- the notebook is automatically collapsed when there are no objects in the collection and it is showed when adding an object
- added new options in Edit -> Preferences -> General -> App Preferences to control if the Notebook is showed at startup and if the notebook is closed when there are no objects in the collection and showed when the collection has objects.

13.02.2019

- added new parameter for Excellon Object in Preferences: Fast Retract. If the checkbox is checked then after reaching the drill depth, the drill bit will be raised out of the hole asap.
- started to work on GUI forms simplification
- changed the Preferences GUI for Geometry and Excellon Objects to make a difference between parameters that are changed often and those that are not.
- changed the layout in the Selected Tab UI
- started to add apertures table support
- finished Gerber aperture table display
- made the Gerber aperture table not visible as default and added a checkbox that can toggle the visibility
- fixed issue with plotting in CNCJob; with Plot kind set to something else than 'all' when toggling Plot, it was defaulting to kind = 'all'
- added (and commented) an experimental FlatCAMObj.FlatCAMGerber.plot_apertures()

12.02.2019

- whenever a FlatCAM tool is activated, if the notebook side is hidden it will be unhidden
- reactivated the Voronoi classes
- added a new parameter named Offset in the Excellon tool table - work in progress
- finished work on Offset parameter in Excellon Object (Excellon Editor, camlib, FlatCAMObj updated to take this param in consideration)
- fixed a bug where in Excellon editor when editing a file, a tool was automatically added. That is supposed to happen only for empty newly created Excellon Objects.
- starting to work on storing the solid_geometry for each tool in part in Excellon Object
- stored solid_geometry of Excellon object in the self.tools dictionary
- finished the solid_geometry restore after edit in Excellon Editor
- finished plotting selection for each tool in the Excellon Tool Table
- fixed the camlib.Excellon.bounds() function for the new type of Excellon geometry therefore fixed the canvas selection, too


10.02.2019

- the SELECTED type of messages are no longer printed to shell from 2 reasons: first, too much spam and second, issue with displaying html
- on set_zero function and creation of new geometry or new excellon there is no longer a zoom fit 
- repurposed shortcut key 'Delete' to delete tools in tooltable when the mouse is over the Seleted tab (with Geometry inside) or in Tools tab (when NCC Tool or Paint Tool is inside). Or in Excellon Editor when mouse is hovering the Selected tab selecting a tool, 'Delete' key will delete that tool, if on canvas 'Delete' key will delete a selected shape (drill). In rest, will delete selected objects.
- adjusted the postprocessor files so the Spindle Off command (M5) is done before the move to Toolchange Z
- adjusted the Toolchange Manual postprocessor file to have more descriptive messages on the toolchange event
- added a strong focus to the object_name entry in the Selected tab
- the keypad keyPressed are now detected correctly
- added a pause and message/warning to do a rough zero for the Z axis, in case of Toolchange_Probe_MACH3 postprocessor file
- changes in Toolchange_Probe_MACH3 postprocessor file

9.02.2019

- added a protection for when saving a file first time, it require a saved path and if none then it use the current working directory
- added into Preferences the Calculator Tools
- made the Preferences window scrollable on the horizontal side (it was only vertically scrollable before)
- fixed an error in Excellon Editor -> add drill array that could appear by starting the function to add a drill array by shortcut before any mouse move is registered while in Editor
- changed the messages from status bar on new object creation/selection
- in Geometry Editor fixed the handler for the Rotate shortcut key ('R')

8.02.2019

- when shortcut keys 1, 2, 3 (tab selection) are activated, if the splitter left side (the notebook) is hidden it will be made visible
- changed the menu entry Toggle Grid name to Toggle Grid Snap
- fixed errors in Toggle Axis
- fixed error with shortcut key triggering twice the keyPressEvent when in the Project List View
- moved all shortcut keys handlers from Editors to the keyPressEvent() handler from FLatCAMGUI
- in Excellon Editor added a protection for Tool_dia field in case numbers using comma as decimal separator are used. Also added a QDoubleValidator forcing a number with max 4 decimals and from 0.0000 to 9.9999
- in Excellon Editor added a shortcut key 'T' that popup a window allowing to enter a new Tool with the set diameter
- in App added a shortcut key 'T' that popup a windows allowing to enter a new Tool with set diameter only when the Selected tab is on focus and only if a Geometry object is selected
- changed the shortcut key for Transform Tool from 'T' to 'ALT+T'
- fixed bug in Geometry Selected tab that generated error when used tool offset was less than half of either total length or half of total width. Now the app signal the issue with a status bar message
- added Double Validator for the Offset value so only float numbers can be entered.
- in App added a shortcut key 'T' that popup a windows allowing to enter a new Tool with set diameter only when the Tool tab is on focus and only if a NCC Tool or Paint Area Tool object is installed in the Tool Tab
- if trying to add a tool using shortcut key 'T' with value zero the app will react with a message telling to use a non-zero value.

7.02.2019

- in Paint Tool, when painting single polygon, when clicking on canvas for the polygon there is no longer a selection of the entire object
- commented some debug messages
- imported speedups for shapely
- added a disable menu entry in the canvas contextual menu
- small changes in Tools layout
- added some new icons in the help menu and reorganized this menu
- added a new function and the shortcut 'leftquote' (left of Key 1) for toggle of the notebook section
- changed the Shortcut list shortcut key to F3
- moved some graphical classes out of Tool Shell to GUIElements.py where they belong
- when selecting an object on canvas by single click, it's name is displayed in status bar. When nothing is selected a blank message (nothing) it's displayed
- in Move Tool I've added the type of object that was moved in the status bar message
- color coded the status bar bullet to blue for selection
- the name of the selected objects are displayed in the status bar color coded: green for Gerber objects, Brown for Excellon, Red for Geometry and Blue for CNCJobs.

6.02.2019

- fixed the units calculators crash FlatCAM when using comma as decimal separator
- done a regression on Tool Tab default text. It somehow delete Tools in certain scenarios so I got rid of it
- fixed bug in multigeometry geometry not having the bounds in self.options and crashing the GCode generation
- fixed bug that crashed whole application in case that the GCode editor is activated on a Tool gcode that is defective. 
- fixed bug in Excellon Slots milling: a value of a dict key was a string instead to be an int. A cast to integer solved it.
- fixed the name self-insert in save dialog file for GCode; added protection in case the save path is None
- fixed FlatCAM crash when trying to make drills GCode out of a file that have only slots.
- changed the messages for Units Conversion
- all key shortcuts work across the entire application; moved all the shortcuts definitions in FlatCAMGUI.keyPressEvent()
- renamed the theme to layout because it is really a layout change
- added plot kind for CNC Job in the App Preferences
- combined the geocutout and cutout_any TCL commands - work in progress
- added a new function (and shortcut key Escape) that when triggered it deselects all selected objects and delete the selection box(es) 
- fixed bug in Excellon Gcode generation that made the toolchange X,Y always none regardless of the value in Preferences
- fixed the Tcl Command Geocutout to work with Gerber objects too (besides Geometry objects)

5.02.3019

- added a text in the Selected Tab which is showed whenever the Selected Tab is selected but without having an object selected to display it's properties
- added an initial text in the Tools tab
- added possibility to use the shortcut key for shortcut list in the Notebook tabs
- added a way to set the Probe depth if Toolchange_Probe postprocessors are selected
- finished the postprocessor file for MACH3 tool probing on toolchange event
- added a new parameter to set the feedrate of the probing in case the used postprocessor does probing (has toolchange_probe in it's name)
- fixed bug in Marlin postprocessor for the Excellon files; the header and toolchange event always used the parenthesis witch is not compatible with GCode for Marlin
- fixed a issue with a move to Z_move before any toolchange

4.02.2019

- modified the Toolchange_Probe_general postprocessor file to remove any Z moves before the actual toolchange event
- created a prototype postprocessor file for usage with tool probing in MACH3
- added the default values for Tool Film and Tool Panelize to the Edit -> Preferences
- added a new parameter in the Tool Film which control the thickness of the stroke width in the resulting SVG. It's a scale parameter.
- whatever was the visibility of the corresponding toolbar when we enter in the Editor, it will be set after exit from the Editor (either Geometry Editor or Excellon Editor).
- added ability to be detached for the tabs in the Notebook section (Project, Selected and Tool)
- added ability for all detachable tabs to be restored to the same position from where they were detached.
- changed the shortcut keys for Zoom In, Zoom Out and Zoom Fit from 1, 2, 3 to '-', '=' respectively 'V'. Added new shortcut keys '1', '2', '3' for Select Project Tab, Select Selected Tab and Select Tool Tab.
- formatted the Shortcut List Tab into a HTML table

3.3.2019

- updated the new shortcut list with the shortcuts added lately
- now the special messages in the Shell are color coded according to the level. Before they all were RED. Now the WARNINGS are yellow, ERRORS are red and SUCCESS is a dark green. Also the level is in CAPS LOCK to make them more obvious
- some more changes to GUI interface (solved issues)
- added some status bar messages in the Geometry Editor to guide the user when using the Geometry Tools
- now the '`' shortcut key that shows the 'shortcut key list' in Editors points to the same window which is created in a tab no longer as a pop-up window. This tab can be detached if needed.
- added a remove_tools() function before install_tools() in the init_tools() that is called when creating a new project. Should solve the issue with having double menu entry's in the TOOLS menu
- fixed remove_tools() so the Tcl Shell action is readded to the Tools menu and reconnected to it's slot function
- added an automatic name on each save operation based on the object name and/or the current date
- added more information's for the statistics

2.2.2019

- code cleanup in Tools
- some GUI structure optimization's
- added protection against entering float numbers with comma separator instead of decimal dot separator in key points of FlatCAM (not everywhere)
- added a choice of plotting the kind of geometry for the CNC plot (all, travel and cut kind of geometries) in CNCJob Selected Tab
- added a new postprocessor file named: 'probe_from_zmove' which allow probing to be done from z_move position on toolchange event 
- fixed the snap magnet button in Geometry Editor, restored the checkable property to True
- some more changes in the Editors GUI in deactivate() function
- a fix for saving as empty an edited new and empty Excellon Object

1.02.2019

- fixed postprocessor files so now the bounds values are right aligned (assuming max string length of 9 chars which means 4 digits and 4 decimals)
- corrected small type in list_sys Tcl command; added a protection of the Plot Area Tab after a successful edit.
- remade the way FlatCAM saves the GUI position data from a file (previously) to use PyQt QSettings
- added a 'theme' combo selection in Edit -> Preferences. Two themes are available: standard and compact.
- some code cleanup
- fixed a source of possible errors in DetachableTab Widget.
- fixed gcode conversion/scale (on units change) when multiple values are found on each line
- replaced the pop-up window for the shortcut list with a new detachable tab
- removed the pop-up messages from the rotate, skew, flip commands

31.01.2019

- added a parameter ('Fast plunge' in Edit -> Preferences -> Geometry Options and Excellon Options) to control if the fast move to Z_move is done or not
- added new function to toggle fullscreen status in Menu -> View -> Toggle Full Screen. Shortcut key: Alt+F10
- added key shortcuts for Enable Plots, Disable Plots and Disable other plots functions (Alt+1, Alt+2, Alt+3)
- hidden the snap magnet entry and snap magnet toggle from the main view; they are now active only in Editor Mode
- updated the camlib.CNCJob.scale() function so now the GCode is scaled also (quite a HACK :( it will need to be replaced at some point)). Units change work now on the GCODE also.
- added the bounds coordinates to the GCODE header
- FlatCAM saves now to a file in self.data_path the toolbar positions and the position of TCL Shell
- Plot Area Tab view can now be toggled, added entry in View Menu and shortcut key CTRL+F10
- All the tabs in the GUI right side are (Plot Are, Preferences etc) are now detachable to a separate windows which when closed it returns in the previous location in the toolbar. Those detached tabs can be also reattached by drag and drop.

30.01.2019

- added a space before Y coordinate in end_code() function in some of the postprocessor files
- added in Calculators Tool an Electroplating Calculator.
- remade the App Menu for Editors: now they will be showed only when the respective Editor is active and hidden when the Editor is closed.
- added a traceback report in the TCL Shell for the errors that don't allow creation of an object; useful to trace exceptions/errors
- in case that the Toolchange X,Y parameter in Selected (or in Preferences) are deleted then the app will still do the job using the current coordinates for toolchange
- fixed an issue in camlib.CNCJob where tha variable self.toolchange_xy was used for 2 different purposes which created loss of information.
- fixed unit conversion functions in case the toolchange_xy parameter is None
- more fixes in camlib.CNCJob regarding usage of toolchange (in case it is None)
- fixed postprocessor files to work with toolchange_xy parameter value = None (no values in Edit - Preferences fields)
- fixed Tcl commands CncJob and DrillCncJob to work with toolchange
- added to the postprocessor files the command after toolchange to go with G00 (fastest) to "Z Move" value of Z pozition.

29.01.2019

- fixed issue in Tool Calculators when a float value was entered starting only with the dot.
- added protection for entering incorrect values in Offset and Scale fields for Gerber and Geometry objects (in Selected Tab)
- added more shortcut keys in the Geometry Editor and in Excellon Editor; activated also the zoom (fit, in, out) shortcut keys ('1' , '2', '3') for the editors
- disabled the context menu in tools table on Paint Tool in case that the painting method is single.
- added protection when trying to do Intersection in Geometry Editor without having selected Geometry items.
- fixed the scale, mirror, rotate, skew functions to work with Geometry Objects of multi-geometry type.
- added a GUI for Excellon Search time for OR-TOOLS path optimization in Edit -> Preferences -> Excellon General -> Optimization Time
- more changes in Edit -> Preferences -> Geometry, Gerber and in CNCJob
- added new option for Cutout Tool Freeform Gaps in Edit -> Preferences -> Tools
- fixed Freeform Cutout gaps issue (it was double than the value set)
- added protection so the Cutout (either Freeform or Rectangular) cannot be done on a multigeo Geometry
- added 2Sided Tool default values in Edit -> Preferences -> Tools
- optimized the FlatCAMCNCJob.on_plot_cb_click_table() plot function and solved a bug regarding having tools numbers not in sync with the cnc tool table

28.01.2018

- fixed the FlatCAMGerber.merge() function
- added a new menu entry for the Gerber Join function: Edit -> Conversions -> "Join Gerber(s) to Gerber" allowing joining Gerber objects into a final Gerber object
- moved Paint Tool defaults from Geometry section to the Tools section in Edit -> Preferences
- added key shortcuts for Open Manual = F1 and for Open Online VideoHelp = F2

27.01.2018

- added more key shortcuts into the application; they are now displayed in the GUI menu's
- reorganized the Edit -> Preferences -> Global
- redesigned the messagebox that is showed when quiting ot creating a New Project: now it has an option ('Cancel') to abort the process returning to the app
- added options for trace segmentation that can be useful for auto-levelling (code snippet from Lei Zheng from a rejected pull request on FlatCAM https://bitbucket.org/realthunder/ )
- added shortcut key 'L' for creating 'New Excellon' 
- added shortcut key combo 'SHIFT+S' for Running a Script.
- modified grbl_laser postprocessor file so it includes a Sxxxx command on the line with M03 (laser active) whenever a value is enter in the Spindlespeed entry field
- remade the EDIT -> PREFERENCES window, the Excellon and Gerber sections. Created a new section named TOOLS

26.01.2019

- fixed grbl_11 postprocessor in linear_code() function
- added icons to the Project Tab context menu
- added new entries to the Canvas context menu (Copy, Delete, Edit/Save, Move, New Excellon, New Geometry, New Project)
- fixed grbl_laser postprocessor file
- updated function for copy of an Excellon object for the case when the object has slots
- updated FlatCAMExcellon.merge() function to work in case some (or all) of the merged objects have slots  

25.01.2019

- deleted junk folders
- remade the Panelize Tool: now it is much faster, it is multi-threaded, it works with multitool geometries and it works with multigeo geometries too.
- made sure to copy the options attribute to the final object in the case of: FlatCAMGeometry.merge(), FlatCAMGerber.merge() and for the Panelize Tool
- modified the panelize TclCommand to take advantage of the new panelize() function; added a 'threaded' parameter (default value is 1) which controls the execution of the panelize TclCommand: threaded or non-threaded
- fixed TclCommand Cutout
- added a new TclCommand named CutoutAny. Keyword: cutout_any

24.01.2019

- trying to fix painting single when the actual painted object it's a MultiPolygon
- fixed the Copy Object function when the object is Gerber
- added the Copy entry to the Project context menu
- made the functions behind Disable and Enable project context menu entries, non-threaded to fix a possible issue
- added multiple object selection on Open ... and Import ... (idea and code snippet came from Travers Carter, BitBucket user https://bitbucket.org/travc/)
- fixed 'grbl_laser' postprocessor bugs (missing functions)
- fixed display geometry for 'grbl_laser' postprocessor
- Excellon Editor - added possibility to create an linear drill array rotated at an custom angle
- added the Edit and Properties entries to the Project context menu

23.01.2019

- added a new postprocessor file named 'line_xyz' which have x, y, z values on the same GCode line
- fixed calculation of total path for Excellon Gcode file
- modified the way FlatCAM preferences are saved. Now they can be saved as new files with .FlatConfig extension by the user and shared.
- added possibility to open the folder where FlatCAM is saving the preferences files

21.01.2019

- changed some tooltips
- added tooltips in Excellon tool table headers
- in Excellon Tool Table the columns are now only selectable by clicking on the header (sorting is done automatically)
- if CNCJob from Excellon then hide the CNC tools table in CNCJob Object

 
20.01.2019

- fixed the HPGL code geometry rendering when travel
- fixed the message box layout when asking to save the current work
- made sure that whenever the HPGL postprocessor is selected the Toolchange is always ON and the MultiDepth is OFF
- the HPGL postprocessor entry is not allowed in Excellon Object postprocessor selection combobox as it is only applicable for Geometry
- when saving HPGL code it will be saved as a file with extension .plt
- the units mentioned in HPGL format are only METRIC therefore if FlatCAM units are in INCH they will be transform to METRIC
- the minimum unit in HPGL is 0.025mm therefore the coordinates are rounded to a multiple of 0.025mm
- removed the raise statement in do_worker_task() function as this is fatal in conjunction with PyQt5
- added a try - except clause for the situations when for a font can't be determined the family and name
- moved font parsing to the Geometry Editor: it is done everytime the Text tool is invoked
- made sure that the HPGL postprocessor is not populated in the Excellon postprocessors in Preferences as it make no sense (HPGL is useful only for Geometries)

19.01.2019

- added initial implementation of HPGL postprocessor
- fixed display HPGL code geometry on canvas

11.01.2019

- added a status message for font parsing

9.01.2019

- added a fix to allow creating of Excellon geometry even when there are points with no tools by skipping those points and warning the user about this in a Tcl message
- added a message box asking users if they want to save the project in case that either New Project menu entry is clicked or if Exit menu entry is clicked or if the app is closed from the close button. The message box will be showed only if there are objects in the collection.
- modified the first line in the Gcode header to show the FlatCAM version and version_date

8.01.2019

- added checkboxes in Preferences -> General -> Global Preferences to switch on/off version check at application startup and also to control if the app will send anonymous statistics about FlatCAM usage to help improve FlatCAM

7.01.2019

- added tooltips in Edit->Convert menu
- fixed cutting from copper features when doing Gerber isolation with multiple passes

6.01.2019

- fixed the Marlin postprocessor detection in GCode header
- the version date in GCode header is now the one set in FlatCAMApp.App.version_date
- fixed bug in postprocessor files: number of drills is now calculated only for the Excellon objects in toolchange function (only Excellon objects have drills) 

5.01.2019

- fixed cncjob TclCommand - it used the default values for parameters
- fixed the layout in ToolTransform
- fixed the initial text in the ToolShell
- reactivated the version check in case the release is not BETA; FlatCAMApp.App has now a beta object that when set True the application will show in the Title and help-> About that is Beta (and it disable version checking)
- added a new name (mine: for good and/or bad) to the contributors list
- fixed the Join function to work on Gerber and Excellon, Gerber and Gerber, Excellon and Excelon combination of objects. The merged property is the solid_geometry and the result is a FlatCAMGeometry object.

3.01.2019

- initial merge into FlatCAM regular

28.12.2018

- changed the workspace drawing from 'gl' to 'agg'. 'gl' has better performance but it messes with the overlapping graphics
- removed the initial obj.build_ui() in App.editor2object()

25.12.2018

- fixed bugs in Excellon Editor due of PyQt5 port
- fixed bug when loading Gerber with follow
- fixed bug that when a Gerber was loaded with -follow parameter it could not be isolated external and full
- changed multiple status bar messages
- changed some assertions to (status error message + return) combo
- fixed issues in 32bit installers
- added protection against using Excellon joining on different kind of objects
- fixed bug in ToolCutout where the Rectangular Cutout used the Type of Gaps from Freeform Cutout
- fixed bug that didn't allowed saving SVG file from a Gerber file
- modified setup_ubuntu.sh file for PyQt5 packages

23.12.2018

- added move (as in Tool Move) capability for CNCJob object and the GCode is updated on each move --> finished both for Gcode loaded and for CNCJob generated in the app
- fixed some errors related to DialogOpen widget that I've missed in PyQt5 porting
- added a bounds() method for CNCJob class in camlib (perhaps overdone as it worked well with the one inherited)
- small changes in Paint Tool - the rest machining is working only partially
- added more columns in CNCjob Tool Table showing more info about the present tools
- make the columns in CNCJob Tool Table not editable as it has no sense

22.12.2018

- fixed issues in Transform Tool regarding the message boxes
- fixed more error in Double Sided Tool and added some more information's in ToolTips
- added more information's in CutOut Tool ToolTips
- updated the tooltips in amost all FlatCAM tools; in Tool Tables added column header ToolTips
- fixed NCC rest machining in NCC Tool; added status message and stop object creation if there is no geometry on any tool
- fixed version number: now it will made of a number in format main_version.secondary_version/working_version
- modified the makefile for windows builds to accommodate both 32bit and 64bit executable generation

21.12.2018

- added shortcut "SHIFT + W" for workspace toggle
- updated the list of shortcuts
- forbid editing for the MultiGeo type of Geometry because the Geometry Editor is not prepared for this
- finished a "sort" of rest-machining for Non Copper Clearing Tool but it's time consuming operation
- reworked the NCC Tool as it was fundamental wrong - still has issues on the rest machining
- added a parameter reset for each run of Paint Tool and NCC Tool

20.12.2018

- porting application to PyQt5
- adjusted the level of many status bar messages
- created new bounds() methods for Excellon and Gerber objects as the one inherited from Geometry failed in conjunction with PyQt5
- fixed some small bugs where a string was divided by a float finally casting the result to an integer
- removed the 'raise' conditions everywhere I could and make protections against loading files in the wrong place
- fixed a "PyCharm stupid paste on the previous tab level even after one free line " in Excellon.bounds()
- in Geometry object fixed error in tool_delete regarding deletion while iterating a dict
- started to rework the NCC Tool to generate one file only
- in Geometry Tool Table added checkboxes for individual plot of tools in case of MultiGeo Geometry
- rework of NCC Tool UI
- added a automatic selector: if the system is 32bit the OR-tools imports are not done and the OR-tools drill path optimizations are replaced by a default Travelling Salesman drill path optimization
- created a Win32 make file to generate a Win32 executable
- disabled the Plot column in Geometry Tool Table when the geometry is SingleGeo as it is not needed
- solved a issue when doing isolation, if the solid_geometry is not a list will make it a list
- added tooltips in the Geometry Tool Table headers explaining each column
- added a new Tcl Command: clear. It clears the Tcl Shell of all text and restore it to the original state
- fixed Properties Tool area calculation; added status bar messages if there is no object selected show an error and successful showing properties is confirmed in status bar
- when Preferences are saved, now the default values are instantly propagated within the application
- when a geometry is MultiGeo and all the tools are deleted, it will have no geometry at all therefore all that it's plotted on canvas that used to belong to it has to be deleted and because now it is an empty object we demote it to SingleGeo so it can be edited

19.12.2018

- fixed SVG_export for MultiGeo Geometries
- fixed DXF_export for MultiGeo Geometries
- fixed SingleGeo to MultiGeo conversion plotting bug

18.12.2018

- small changes in FlatCAMGeometry.plot()
- updated the FlatCAMGeometry.merge() function and the Join Geometry feature to accommodate the different types of geometries: singlegeo and multigeo type
- added Conversion submenu in Edit where I moved the Join features and added the Convert from MultiGeo to SingleGeo type and the reverse
- added Copy Tool (on a selection of tools) feature in Geometry Object UI 
- fixed the bounds() method for the MultiGeo geometry object so the canvas selection is working and also the Properties Tool
- fixed Move Tool to support MultiGeo geometry objects moving
- added tool edit in Geometry Object Tool Table
- added Tool Table context menu in Geometry Object and in Paint Tool
- modified some Status Bar messages in Geometry Object

17.12.2018

- added support for multiple solid_geometry in a geometry object; each tool can now have it's own geometry. Plot, project save/load are OK.
- added support for single GCode file generation from multi-tool PaintTool job
- added protection for results of Paint Tool job that do not have geometry at all. An Error will be issued. It can happen if the combination of Paint parameters is not good enough
- solved a small bug that didn't allow the Paint Job to be done with lines when the results were geometries not iterable 
- added protection for the case when trying to run the cncjob Tcl Command on a Geometry object that do not have solid geometry or one that is multi-tool
- Paint Tool Table: now it is possible to edit a tool to a new diameter and then edit another tool to the former diameter of the first edited tool
- added a new type of warning, [WARNING_NOTCL]
- fixed conflict with "space" keyboard shortcut for CNC job

16.12.2018

- redone the Options menu; removed the Transfer Options as they were not used
- deleted some folders in the project structure that were never used
- Paint polygon Single works only for left mouse click allowing mouse panning
- added ability to print errors in status bar without raising Tcl Shell
- fixed small bug: when doing interiors isolation on a Gerber that don't allow it, no object is created now and an error in the status bar is issued
- fixed bug in Paint All for Geometry made from exteriors Gerber isolation
- fixed the join geometry: when the geometries has different tools the join will fail with a status bar message (as it should). Allow joining of geometries that have no tool. // Reverted on 18.12.2018
- changed the error messages that are simple to the kind that do not open the TCl shell
- fixed some issues in Geometry Object
- Paint Tool - reworked the UI and made it compatible with the Geometry Object UI
- Paint Tool - tool edit functional
- added Clear action in the Context menu of the TCl Shell

14.12.2018

- fixed typo in setup_ubuntu.sh
- minor changes in Excellon Object UI
- added Tool Table in Paint Tool
- now in Paint Tool and Non Copper Clearing Tool a selection of tools can be deleted (not only one by one)
- minor GUI changes (added/corrected tooltips)
- optimized vispy startup time from about >6 sec to ~3 seconds
- removed vispy text collection starting in plotcanvas as it did nothing // RESTORED 18.12.2018 as it messed the graphical presentation
- fixed cncjob TclCommand for the new type of Geometry
- make sure that when using the TclCommands, the object names are case insensitive
- updated the TCL Shell auto-complete function; now it will index also the names of objects created or loaded in the application
- on object removal the name is removed from the Shell auto-complete model

13.12.2018

NEW Geometry Object and CNC Object architecture (3rd attempt) which allow multiple tools for one geometry

- fixed issue with cumulative G-code after successive delete/create of a CNCJob on the same geometry (some references were kept after deletion of CNCJob object which kept the deleted tools data and added it to a new one)
- fixed plot and export G-code in new format
- fixed project save/load in the new format for geometry
- added new feature in CNCJob Object UI: since we may have multiple tools per CNCJob object due of having multiple tool in Geometry Object,
now there is a Tool Table in CNC Object UI and each tool GCode can be enabled or disabled

12.12.2018

- Geometry Tool Table: when the Offset type is 'custom' each tool it's storing the value and it is updated on UI when that tool is selected in UI table
- Geometry Tool Table: fixed tool offset conversion when the Offset in Tool Table UI is set to Custom

11.12.2018

- cleaned up the generatecncjob() function in FlatCAMObj
- created a new function for generating cncjob out of multitool geometry, mtool_generate_cncjob()
- cleaned up the generate_from_geometry_2() method in camlib
- Geometry Tool Table: new tool added copy all the form fields (data) from the last tool
- finished work on generation of a single CNC Job file (therefore a single GCODE file) even for multiple tools in Geo Tool Table
- GCode header is added only on saving the file therefore the time generation will be reflected in the file
- modified postprocessors to accommodate the new CNC Job file with multiple tools
- modified postprocessors so the last X,Y move will be to the toolchange X,Y pos (set in Preferences)
- save_project and load_project now work with the new type of multitool geometry and cncjob objects

10.12.2018

- added new feature in Geometry Tool Table: if the Offset type in tool table is 'Offset' then a new entry is unhidden and the user can use custom offset
- Geometry Tool Table: fixed add new tool with diameter with many decimals
- Geometry Tool Table: when editing the tip dia or tip angle for the V Shape tool, the CutZ is automatically calculated

9.12.2018

- new Geometry Tool Table has functional unit conversion
- when entering a float number in Spindle Speed now there is no error and only the integer part is used, the decimals are discarded
- finished the Geometry Tool Table in the form that generates only multiple files
- if tool type is V-Shape ('V') then the Cut Z entry is disabled and new 'Tip Dia' and 'Tip Angle' fields are showed. The values entered will calculate the Cut Z parameter

5.12.2018

- remade the Geometry Tool Table, before this change each tool could not store it's own set of data in case of multiple tools with same diameter
- added a new column in Geo Tool Table where to specify which type of tool to use: C for circular, B for Ball and V for V-shape

4.12.2018

- new geometry/excellon object name is now only "new_g"/"new_e" as the type is clear from the category is into (and the associated icon)
- always autoselect the first tool in the Geometry Tool table
- issue error message if the user is trying to generate CNCJob without a tool selected in Geometry Tool Table
- add the whole data from Geometry Object GUI as dict in the geometry tool dict so each tool (file) will have it's own set of data

3.12.2018

- Geometry Tool table: delete multiple tools with same diameter = DONE
- Geometry Tool table: possibility to cut a path inside or outside or on path = DONE
- Geometry Tool table: fixed situation when user tries to add a tool but there is no tool diameter entered
- if a geometry is a closed shape then create a Polygon out of it
- some fixes in Non Copper Clearing Tool
- Geometry Tool table: added option to delete_tool function for delete_all
- Geometry Tool table: added ability to delete even the last tool in tool_table and added an warning if the user try to generate a CNC Job without a tool in tool table
- if a geometry is painted inside the Geometry Editor then it will store the tool diameter used for this painting. Only one tool cn be stored (the last one) so if multiple paintings are done with different tools in the same geometry it will store only the last used tool.
- if multiple geometries have different tool diameters associated (contain a paint geometry) they aren't allowed to be joined and a message is displayed letting the user know

2.12.2018

- started to work on a geometry Tool Table
- renamed FlatCAMShell as ToolShell and moved it (and termwidget) to flatcamTools folder
- cleaned up the ToolShell by removing the termwidget separate file and added those classes to ToolShell
- added autocomplete for TCL Shell - the autocomplete key is 'TAB'
- covered some possible exceptions in rotate/skew/mirror functions
- Geometry Tool table: add/delete tools = DONE
- Geometry Tool table: add multiple tools with same diameter = DONE

1.12.2018

- fixed Gerber parser so now the Gerber regions that have D02 operation code just before the end of the region will be processed correctly. Autotrax Dex Gerbers are now loaded
- fixed an issue with temporary geo storage "geo" being referenced before assignment
- moved all FlatCAM Tools into a single directory

30.11.2018

- remade the CutOut Tool. I've put together the former Freeform Cutout tool and the Cutout Object fount in Gerber Object GUI and left only a link in the Gerber Object GUI. This tidy the GUI a bit.
- created a Paint Tool and replaced the Paint Area section in Geometry Object GUI with a link to this tool.
- fixed bug in former Paint Area and in the new Paint Tool that made the paint method not to be saved in App preferences
- solved a bug in Gerber parser: in case that an operation code D? was encountered alone it was not remembered - fixed
- fixed bug related to the newly entered toolchange feature for Geometry: it was trying to evaluate toolchange_z as a comma separated value like for toolchange x,y
- fixed bug in scaling units in CNC Job which made the unit change between INCH and MM not possible if a CNC Job was present in the project objects

29.11.2018

- added checks for using a Z Cut with positive value. The Z Cut parameter has to be negative so if the app will detect a positive value it will automatically convert it to negative
- started to implement rest-machining for Non Copper clearing Tool - for now the results are not great
- added Toolchange X,Y position parameters and modified the default and manual_toolchange postprocessor file to use them
For now they are used only for Excellon objects who do have toolchange events
- added Toolchange event selection for Geometry objects; for now it is as before, single tool on each file
- remade the GUI for objects and in Preferences to have uniformity
- fixed bug: after editing a newly created excellon/geometry object the object UI used to not keep the original settings
- fixed some bugs in Tool Add feature of the new Non Copper Clear Tool
- added some messages in the Non Copper Clear Tool
- added parameters for coordinates no of decimals and for feedrate no of decimals used in the resulting GCODE. They are in EDIT -> Preferences -> CNC Job Options
- modified the postprocessors to use the "decimals" parameters

28.11.2018

- added different methods of copper clearing (standard, seed, line_based) and "connect", "contour" options found in Paint function
- remake of the non-copper clearing tool as a separate tool
- modified the "About" menu entry to mention the main contributors to FlatCAM 3000 
- modified Marlin postprocessor according to modifications made by @redbull0174 user from FlatCAM.org forum
- modified Move Tool so it will detect if there is no object to move and issue a message

27.11.2018

- fixed bug in isolation with multiple passes
- cosmetic changes in Buffer and Paint tool from Geometry Editor
- changed the way selection box is working in Geometry Editor; now cumulative selection is done with modifier key (SHIFT or CONTROL) - before it was done by default
- changed the default value for CNCJob tooldia to 1mm

25.11.2018

- each Tool change the name of the Tools tab to it's name
- all open objects are no longer autoselected upon creation. Only on new Geometry/Excellon object creation it will be autoselected

24.11.2018

- restored the selection method in Geometry Editor to the original one found in FlatCAM 8.5
- minor changes in Clear Copper function
- minor changes in some postprocessors
- change Join Geometry menu entry to Join Geo/Gerber
- added menu entry for Toggle Axis in Menu -> View
- added menu entry for Toggle Workspace in Menu -> View
- added Bounding box area to the Properties (when metric units, in cm2)
- non-copper clearing function optimization
- fixed Z_toolchange value in the GCODE header

21.11.2018

- not very precise jump to location function
- added shortcut key for jump to coordinates (J) and for Tool Transform (T)
- some work in shortcut key

19.11.2018

- fixed issue with nested comment in postprocessors
- fixed issue in Paint All; reverted changes

18.11.2018

- renamed FlatCAM 2018 to FlatCAM 3000
- added new entries in the Help menu; one will show shortcut list and the other will start a YouTube webpage with a playlist where I will publish future training videos for this version of FlatCAM
- if a Gerber region has issues the file will be loaded bypassing the error but there will be a TCL message letting the user know that there are parser errors. 

17.11.2018

- added Excellon parser support for units defined outside header


12.11.2018

- fixed bug in Paint Single Polygon
- added spindle speed in laser postprocessor
- added Z start move parameter. It controls the height at which the tool travel on the fist move in the job. Leave it blank if you don't need it.

9.11.2018

- fixed a reported bug generated by a typo for feedrate_z object in camlib.py. Because of that, the project could not be saved.
- fixed a G01 usage (should be G1) in Marlin postprocessor.
- changed the position of the Tool Dia entry in the Object UI and in FlatCAMGUI
- fixed issues in the installer

30.10.2018

- fixed a bug in Freeform Cutout Tool - it was missing a change in the name of an object

29.10.2018

- added Excellon export menu entry and functionality that can export in fixed format 2:4 LZ INCH (format that Altium can load and it is a more generic format).
It will be usefull for those who need FlatCAM to only convert the Excellon to a more useful format and visualize Gerbers.
The other Excellon Export menu entry is exporting in units either Metric or INCH depending on the current units in FlatCAM, but it will always use the decimal format which may not be loaded in all cases.
- disabled the Selected Tab while in Geometry Editor; the user is not supposed to have access to those functions while in Geometry Editor
- added an menu entry in Menu -> File -> Recent Files named Clear Recent files which does exactly that
- fixed issue: when a New Project is created but there is a Geometry still in Geometry Editor (or Excellon Editor) not saved, now that geometry is deleted
- fixed problem when doing Clear Copper with Cut over 1st point option active. When the shape is not closed then it may cut over copper features. Originally the feature was meant to be used only with isolation geometry which is closed. Fixed

28.10.2018

- fixed Excellon Editor shortcut messages; also fixed differences in messages between usage by shortcuts and usage by menu toolbar actions
- fixed Excellon Editor bug: it was triggering exceptions when the user selected a tool in tooltable and then tried to add a drill (or array) by clicking on canvas
Clicking on canvas by default clear all the used tools, therefore the action could not be done. Fixed.
- fixed bug Excellon Editor: when all the drills from a tool are resized, after resize they can't be selected.
- Excellon Editor: added ability to delete multiple tools at once by doing multiple selection on the tooltable
- Excellon Editor: if there are no more drills to a tool after doing drills resize then delete that tool from the tooltable
- Excellon Editor: always select the last tool added to the tooltable
- Excellon Editor: added a small canvas context menu for Excellon Editor

27.10.2018

- added a Paint tool toolbar icon and added shortcut key 'I' for Paint Tool
- fixed unreliable multiple selection in Geometry Editor; some clicks were not registered
- added utility geometry for Add Drill Array in Excellon Editor
- fixed bug Excellon Editor: drills in drill array start now from the array start point (x, y); previously array start point was used only for calculating the radius
- fixed bug Excellon Editor: Measurement Tool was not acting correctly in Exc Editor regarding connect/disconnect of events
- in Excellon Editor every time a tool is clicked (except Select which is the default) the focus will return to Selected tab
- added protection in Excellon Editor: if there is no tool/drill selected no operation over drills can be performed and a status bar message will be displayed
- Excellon Editor: added relevant messages for all actions
- fixed bug Excellon Editor: multiple selection with key modifier pressed (CTRL/SHIFT) either by simple click or through selection box is now working
- fixed dwell parameter for Excellon in Preferences to be default Off

26.10.2018

- when objects are disabled they can't be selected
- added Feedrate_z (Plunge) parameter for Geometry Object
- fixed bug in units convert for Geometry Tab; added some missing parameters to the conversion list
- fixed bug in isolation Geometry when the isolated Gerber was a single Polygon
- updated the Paint function in Geometry Editor

25.10.2018

- added a verification on project saving to make sure that the project was saved successfully. If not, a message will be displayed in the status bar saying so.

20.10.2018

- fixed the SVG import as Gerber. But unfortunately, when there is a ground pour in a imported PCB SVG, the ground pour will be isolated inside
instead to be isolated outside like every other feature. That's no way around this. The end result will be thinner features
for the ground pour and if one is relying on those thin connections as GND links then it will not work as intended ,they may be broken.
Of course one can edit the isolation geometry and delete the isolation for the ground pour.
- delete selection shapes on double clicking on object as we may not want to have selection shape while Selected tab is active

19.10.2018

- solved some value update bugs in tool_table in Excellon Editor when editing tools followed by deleting another tool,
and then re-adding the just-deleted tool.
- added support for chaining blocks in DXF Import
- fixed the DXF arc import
- added support for a type of Gerber files generated by OrCAD where the Number format is combined with G74 on the same line
- in Geometry Editor added the possibility for buffer to use different kinds of corners
- added protection against loading an GCODE file as Excellon through drag & drop on canvas or file open dialog
- added shortcut key 'B' for buffer operation inside Geometry Editor
- added shell message in case the Font used in Text Tool in Geometry editor is not supported. Only Regular, Bold, Italic adn BoldItalic are supported as of yet.
- added shortcut key 'T' for Text Tool inside Geometry Editor
- added possibility for Drag & Drop on FlatCAM GUI with multiple files at once 

18.10.2018

- fixed DXF arc import in case of extrusion enabled
- added on Geo Editor Toolbar the button for Buffer Geometry; added the possibility to create exterior and interior buffer
- fixed a numpy import error

17.10.2018

- added Spline support and Ellipse (chord) support in DXF Import: chord might have issues
(borrowed from the work of Vasilis Vlachoudis, https://github.com/vlachoudis/bCNC)
- added Block support in DXF Import - no support yet for chained blocks (INSERT in block)
- support for repasted block insertions

16.10.2018

- added persistent toolbar view: the enabled toolbars will be active at the next app startup while those that are not enabled will not be
enabled at the next app startup. To enable/disable toolbars right click on the toolbar.

15.10.2018

- DXF Export works now also for Exteriors only and Interiors only geometry generated from Gerber Object
- when a Geometry is edited, now the interiors and exterior of a Polygon that is part of the Geometry can be selected individually. In practice, if
doing full isolation geometry, now both external and internal trace can be selected individually.

13.10.2018

- solved issue in CNC Code Editor: it appended text to the previous one even if the CNC Code Editor was closed
- added .GBD Gerber extension to the lists
- added support for closed polylines/lwpolylines in Import DXF; now PCB patterns found in PDF format can be imported in INKSCAPE
and saved as DXF. FlatCAM can import DXF as Gerber and the user now can do isolation on it.

12.10.2018

- added zoom in, zoom out and zoom fit buttons on the View toolbar
- fixed bug that on Double Sided Tool when a Excellon Alignment is created does not reset the list of Alignment drills
- added a message warning the user to add Point coordinates in case the reference used in Double Sided Tool is Point
- added new feature: DXF Export for Geometry

10.10.2018

- fixed a small bug in Setup Recent Files
- small fix in Freeform Cutout Tool regarding objects populating the combo boxes
- Excellon object name will reflect the number of edits performed on it

9.10.2018

- In Geometry Editor, now Path and Polygon draw mode can be finished not only with shortcut key Enter but also with right click on canvas
- fixes regarding of circle linear approximation - final touch
- fix for interference between Geo Editor and Excellon Editor
- fixed Cut action in Geometry Editor so it can now be done multiple times on the target geometry without need for saving in between.
- initial work on DXF import; made the GUI interface and functional structure
- added import functions for DXF import
- finished DXF Import (no blocks support, no SPLINE support for now)

8.10.2018

- completed toggle canvas selection when there is only one object under click position for the case when clicking the object is done
while other object is already selected.
- added static utility geometry just upon activating an Editor function
- changed the way the canvas is showed on FlatCAM startup

7.10.2018

- solved mouse click not setting relative measurement origin to zero
- solved bug that always added one drill when copying a selection of drills in the EXCELLON EDITOR
- solved bug that the number of copied drills in Excellon Editor was not updated in the tool table
- work in the Excellon Editor: found useful to change the diameter of one tool to another already in the list;
could help for all those tools that are a fraction difference that comes from imperial to mm (or reverse) conversion,
to reduce the tool changes - Done
- in Excellon Editor, always auto-select the last tool added
- in Excellon Editor fixed shortcuts for drill add and drill_array add: they were reversed. Now key 'A' is for array add
and key 'D' is for drill add
- solved a small bug in Excellon export: even when there were no slots in the file, it always added the tools list that
acted as unnecessary toolchanges
- after Move action, all objects are deselected


6.10.2018

- Added basic support for SVG text in SVG import. Will not work if some letters in a word have different style (italic bold or both)
- added toggle selection to the canvas selection if there is only one object under the click position
- added support for "repeat" command in Excellon file
- added support for Allegro Gerber and Excellon files
- Python 3.7 is used again; solved bug where the activity icon was not playing when FlatCAM active

5.10.2018

- fixed undesired setting focus to Project Tab when doing the SHIFT + LMB combo (to capture the click coordinates)

4.10.2018

- Excellon Editor: finished Add Drill Array - Linear type action
- Excellon Editor: finished Add Drill Array - Circular type action
- detected bug in shortcuts: Fixed
- Excellon Editor: added constrain for adding circular array, if the number of drills multiplied by angle is more than 360
the app will return with an message
- solved sorting bug in the Excellon Editor tool table
- solved bug in Menu -> Edit -> Sort Origin ; the selection box was not updated after offset
- added Excellon Export in Menu -> File -> Export -> Export Excellon
- added support to save the slots in the Excellon file in case there were some in the original file
- fixed Double Sided Tool for the case of using the box as mirroring reference.

2.10.2018

- made slots persistent after edit
- bug detected: in Excellon Editor if new tool added diameter is bigger than 10 it mess things up: SOLVED
- Excellon Editor: finished Drill Resize action
- after an object is deleted from the Project list, if the current tab in notebook is not Project,
always focus in the Project Tab (deletion can be done by shortcut key also)
- changed the initial view to include the possible enabled workspace guides

1.10.2018

- added GUI for Excellon Editor in the Tool Tab
- Excellon Editor: created and populated the tool list
- Excellon Editor: added possibility to add new tools in the list
- Excellon Editor: added possibility to delete a tool (and the drills that it contain) by selecting a row in the tool table and 
clicking the Delete Tool button
- Excellon Editor: added possibility to change the tool diameter in the tool list for existing tool diameters.
- Excellon Editor: when selecting a drill, it will highlight the tool in the Tool table
- Excellon Editor: optimized single click selection
- Excellon Editor: added selection for all drills with same diameter upon tool selection in tool table; fix in tool_edit
- Excellon Editor: added constrain to selection by single click, it will select if within a certain area around the drill
- Excellon Editor: finished Add Drill action
- Excellon Editor: finished Move Drill action
- Excellon Editor: finished Copy Drill action

- fixed issue: when an object is selected before entering the Editor mode, now the selecting shape is deleted before entry 
in the Editor (be it Geometry or Excellon).
- fixed a few glitches regarding the units change
- when an object is deselected on the Plot Area, the notebook will switch to Project Tab
- changed the selection behavior for the dragging rectangle selection box in Editor (Geometry, Excellon): by dragging a
selection box and selecting is cumulative: it just adds. To remove from selection press key Ctrl (or Shift depending of 
the setting in the Preferences) and drag the rectangle across the objects you want to deselect.

29.09.2018

- optimized the combobox item population in Panelization Tool and in Film Tool
- FlatCAM now remember the last path for saving files not only for opening
- small fix in GUI
- work on Excellon Editor. Excellon editor working functions are: loading an Excellon object into Editor, 
saving an Excellon object from editor to FlatCAM, selecting drills by left click, selection of drills by dragging rectangle, deletion of drills.
- fixed Excellon merge
- added more Gcode details (depthperpass parameter in Gcode header) in postprocessors
- deleted the Tool informations from header in postprocessors due to Mach3 not liking the lot of square brackets
- more corrections in postprocessors


28.09.2018

- added a save_defaults() call on App exit from action on Menu -> File -> Exit
- solved a small bug in Measurement Tool
- disabled right mouse click functions when Measurement Tools is active so the user can do panning and find the destination point easily
- added a new button named "Measure" in Measurement Tool that allow easy access to Measurement Tool from within the tool
- fixed a bug in Gerber parser that when there was a rectangular aperture used within a region, some artifacts were generated.
- some more work on Excellon Editor

27.09.2018

- fixed bug when creating a new project, if a previous object was selected on screen, the selection shape
survived the creation of a new project
- added compatibility with old type of FlatCAM projects
- reverted modifications to the way that Excellon geometry was stored to the old way.
- added exceptions for Paint functions so the user can know if something failed.
- modified confirmation messages to use the color coded messages (error = red, success = green, warning = yellow)
- restored activity icon

26.09.2018

- disabled selection of objects in Project Tab when in Editor
- the Editor Toolbar is hidden in normal mode and it is showed when Editor
is activated. I may change this behaviour back.
- changed names in classes, functions to prepare for the Excellon editor

- fixed bugs in Paint All function
- fixed a bug in ParseSVG module in parse_svg_transform(), related to 'scale'

- moved all the Editor menu/toolbar creation to FlatCAMUI where they belong
- fixed a Gerber parse number issue when Gerber zeros are TZ (keep trailing zeros)

- changed the way of how the solid_geometry for Excellon files is stored
and plotted. Before everything was put in the same "container". Now,
the geometries of drills and slots are organized into dictionaries having
as keys the tool diameters and as values list of Shapely objects (polygons)
- fix for Excellon plotting for newly created empty Excellon Object
- fixed geometry.bounds() in camlib to work with the new format of the Excellon geometry (list of dicts)

24.09.2018

- added packages in the Requirements and setup_ubuntu.sh. Tested in Ubuntu and
it's OK
- added Replace (All) feature in the CNC Code Editor
- made CNC Code generation for Excellon to show progress
- added information about transforms in the object properties (like skew
and how much, if it was mirrored and so on)
- made all the transforms threaded and make them show progress in the progress bar
- made FlatCAM project saving, threaded.
 
23.09.2018

- added support for "header-less" Excellon files. It seems that Mentor PADS does generate such
non-standard Excellon files. The user will have to guess: units (IN/MM), type of zero suppression LZ/TZ 
(leading zeros or trailing zeros are kept) and Excellon number format(digits and decimals). 
All of those can be adjusted in Menu -> Edit -> Preferences -> Excellon Object -> Excellon format
- fixed svgparse for Path. Now PCB rasted images can traced in Inkscape or PDF's can be converted
and then saved as SVG files which can be imported into FlatCAM. This is a convolute way to convert a PDF
to Gerber file.

22.09.2018

- added Drag & Drop capability. Now the user can drag and drop to FlatCAM GUI interface a file 
(with the right extension) that can be a FlatCAM project file (.FlatPrj) a Gerber file, 
an Excellon file, a G-Code file or a SVG file.
- made the Move Tool command threaded
- added Image import into FlatCAM

21.09.2018

- added new information's in the object properties: all used Tool-Table items
are included in a new entry in self.options dictionary
- modified the postprocessor files so they now include information's about
how many drills (or slots) are for each tool. The Gcode will have this
information displayed on the message from ToolChange.
- removed some log.debug and add new log.debug especially for moments when some process is finished
- fixed the utility geometry for Font geometry in Geometry Editor
- work on selection in Geometry Editor
- added multiple selection key as a Preference in Menu -> Edit -> Preferences
It can be either Shift or Ctrl.
- fixed bug in Gerber Object -> Copper Clearing.
- added more comprehensive tooltips in Non-copper Clearing as advice on how to proceed.
- adjusted make_win32.py file so it will work with Python 3.7 (cx_freeze can't copy OpenGL files, so
it has to be done manually)

19.09.2018

- optimized loading FlatCAM project by double clicking on project file; there is no need to clean up everything by using 
the function not Thread Safe: on_file_new() because there is nothing to clean since FlatCAM just started.

- added a workspace delimitation with sizes A3, A4 and landscape or portrait format
- The Workspace checkbox in Preferences GUI is doing toggle on the workspace
- made the workspace app default state = False
- made the workspace to resize when units are changed
- disabled automatic defaults save (might create SSD wear)
- added an automatic defaults save on FlatCAM application close
- made the draw method for the Workspace lines 'agg' so the quality of the FC objects will not be affected

- added Area constrain to the Panelization Tool: if the resulting area is too big to fit within constrains, the number
of columns and/or rows will be reduced to the maximum that still fits is.
- removed the Flip command from Panelization Tools because Flipping (Mirroring) should be done properly with the 
Transform Tool or using the provided shortcut keys.

- made Font parsing threaded so the application will not wait for the font parsing to complete therefore the app start
is faster


17.09.2018

- fixed Measuring Tool not working when grid is turned OFF
- fixed Roland MDX20 postprocessor
- added a .GBR extension in the open_gerber filter
- added ability to Scale and Offset (for all types of objects) to just
press Enter after entering a value in the Entry just like in Tool Transform
- added capability in Tool Transform to mirror(flip) around a certain Point.
The point coordinates can either be entered by hand or they can be captured
by left clicking while pressing key "SHIFT" and then clicking the Add button
- added the .ROL extension when saving Machine Code
- replaced strings that reference to G-Code from G-Code to CNC Code
- added capability to open a project by serving the path/project_name.FlatPrj as a parameter
to FlatCAM.py

15.09.2018

- removed dwell line generator and included dwell generation in the postprocessor files
- added a proposed RML1 Roland_MDX20 postprocessor file.
- added a limit of 15mm/sec (900mm/min) to the feedrate and to the feedrate_rapid. Anything faster than this
will be capped to 900mm/min regardless what is entered in the program GUI. This is because Roland MDX-20 has
a mechanical limit of the speed to 15mm/sec (900mm/min in GUI)

14.09.2018
- remade the Double Sided Tool so it now include mirroring of Excellon and Geometry Objects along Gerber.
Made adding points easier by adding buttons to GUI that allow adding the coordinates captured by
left mouse click + SHIFT key
- added a few fixes in code to the other FlatCAM tools regarding reset_fields() function. The issue
was present when clicking New Project entry in Menu -> File.
- FIXED: fix adding/updating bounding box coords for the mirrored objects in Double side Tool.
- FIXED: fix the bounding box values from within FlatCAM objects, upon units change.
- fixed issue with running again the constructor of the drawing tools after the tool action was complete,
in Geometry Editor
- fixed issue with Tool tab not closed after Text Input tool is finished.
- fixed issue with TEXT to GEOMETRY tool, the resulting geometry was not scaled depending of current units
- fixed case when user is clicking on the canvas to place a Font Geometry without clicking apply button first
or the Font Geometry is empty, in Geometry Editor - > Text Input tool
- reworked Measuring Tool by adding more information's (START, STOP point coordinates) and remade the 
strings
- added to Double Sided Tool the ability to use as reference box Excellon and Geometry Objects

12.09.2018

- fixed Excellon Object class such that Excellon files that have both drills and slots are supported
- remade the GUI interface for the Excellon Object in a more compact way; added a column with slots numbers
(if any) along the drills numbers so now there is only one tool table for drills and slots.
- remade the GUI in Preferences and removed unwanted stretch that was broken the layout.
- if for a certain tool, the slots number is zero it will not be displayed
- reworked Text to Geometry feature to work in Linux and MacOS
- remade the Text to Geometry so font collection process is done once at app start-up improving the performance


09.09.2018

- added TEXT ENTRY SUPPORT in Geometry Editor. It will convert strings of True Type Fonts to geometry. 
The actual dimensions are approximations because font size is in points and not in metric or inch units.
For now full support is limited to Windows. In Linux/MacOS only the fonts for which the font name is the same 
as the font filename are supported. Italic and Bold functions may not work in Linux/MacOS.
- solved bug: some Drawing menu entries not having connected functions

28.08.2018

- fixed Gerber parser so now G01 "moving" rectangular 
aperture is supported.
- fixed import_svg function; it can import SVG as geometry (solved bug)
- fixed import_svg function; it can import SVG as Gerber (it did not work previously)
- added menu entry's for SVG import as Gerber and separated import as Geometry

27.08.2018

- fixed Gerber parser so now FlatCAM can load Gerber files generated by Mentor Graphics EDA programs.

26.08.2018

- added awareness for missing coordinates in Gerber parsing. It will try to use the previous coordinates but if there
are not any those lines will be ignored and an Warning will be printed in Tcl Shell.
- fixed TCL commands AlignDrillGrid and DrilCncJob
- added TCL script file load_and_run support in GUI
- made the tool_table in Excellon to automatically adjust the table height depending on the number of rows such that
all the rows will be displayed.
- structural changes in the Excellon build_ui()
- icon changes and menu compress

23.08.2018

- added Excellon routing support
- solved a small bug that crippled Excellon slot G85 support when the coordinates
are with period.
- changed the way selection is done in Geometry Editor; now it should work
in all cases (although the method used may be computationally intensive,
because sometimes you have to click twice to make selection if you do it too fast)

21.08.2018

- added Excellon slots support when using G85 command for generation of
the slots file. Inspired from the work of @mgix. Thanks.
Routing format support for slots will follow. 
- minor bug solved: option "Cut over 1st pt" now has same name both in
Preferences -> Geometry Options and in Selected tab -> Geomety Object.
Solves #3
- added option to select Climb or Conventional Milling in Gerber Object options
Solves #4
- made "Combine passes" option to be saved as an app preference
- added Generate Exteriors Geo and Generate Interiors Geo buttons in the
Gerber Object properties
- added configuration for the number of steps used for Gerber circular aperture
linear approximation. The option is in Preferences -> Gerber Options
- added configuration for the number of steps used for Gcode circular aperture
linear approximation. The option is in Preferences -> CNCjob Options
- added configuration for the number of steps used for Geometry circular aperture
linear approximation. The option is in Preferences -> Geometry Options. It is used 
on circles/arcs made in Geometry Editor and for other types of geometries generated in 
the app.


17.07.2018

- added the required packages in Requirements.txt file
- added required packages in setup_ubuntu.sh file
- added color control over almost all the colors in the application; those
settings are in Menu -> Edit -> Preferences -> General Tab
- added configuration of which mouse button to be used when panning (MMB or RMB)
- fixed bug with missing 'drillz' parameter in function generate_from_excellon_by_tool()
(credits for finding it goes to Stefan Smith https://bitbucket.org/stefan064/)
- load Factory defaults in Preferences will load the defaults that are used just after
first install. Load Defaults option in Preferences will load the User saved Defaults.

03.07.2018

- fixed bug in rotate function that didn't update the bounding box of the
modified object (rotated) due of not emitting the right signal parameter.
- removed the Options tab from the Notebook (the left area where is located
also the Project tab). Replaced it with the Preferences Tab launched with
Menu -> Edit -> Preferences
- when FlatCAM is used under MacOS, multiple selection of shapes in Editor
mode is done using SHIFT key instead of CTRL key due of MacOS interpreting
CTRL+LMB_click as a RMB click
- when in Editor, clicking not on a shape, reset the index of selected shapes
to zero
- added a new Tab in the Plot Area named Gcode Editor. It allow the user to
edit the Gcode and then Save it or Print it.
- added a fix so the 'preamble' Gcode is correctly inserted between the
comments header and the actual GCODE
- added Find function in G-Code Editor


27.06.2018

- the Plot Area tab is changing name to "Editor Area" when the Editor is
activated and returns to the "Plot Area" name upon exiting the Editor
- made the labels shorter in Transform Tool in anticipation of
Options Tab removal from Notebook and replacing it with Preferences
- the Excellon Editor is not finished (not even started yet) so the
Plot Area title should stay "Plot Area" not change to "Editor Area" when
attempting to edit an Excellon file. Solved.
- added a header comment block in the generated Gcode with useful
information's
- fixed issue that did not allow the Nightly's to be run in
Windows 7 x64. The reason was an outdated DLL file (freetype.dll) used
by Vispy python module.


25.06.2018

- "New" menu entry in Menu -> File is renamed to "New Project"
- on "New Project" action, all the Tools are reinitialized so the Tools
tab will work as expected
- fixed issue in Film Tool when generating black film
- fixed Measurement Tool acquiring and releasing the mouse/key events
- fixed cursor shape is updated on grid_toggle
- added some infobar messages to show the user when the Editor was
activated and when it was closed (control returned to App).
- added thread usage for Film tool; now the App is no longer blocked on
film generation and there is a visual clue that the App is working

22.06.2018

- added export PNG image functionality and menu entry in
Menu -> File -> Export PNG ...
- added a command to set focus on canvas inside the mouve move event
handler; once the mouse is moved the focus is moved to canvas so the
shortcuts work immediatly.
- solved a small bug when using the 'C' key to copy name of the selected
object to clipboard

- fixed millholes() function and isolate() so now it works even when the
tool diameter is the same as the hole diameter.

Actually if the passed value to  the buffer() function is zero, I
artificially add a value of 0.0000001 (FlatCAM has a precision of
6 decimals so I use a tenth of that value as a pseudo "zero")
because the value has to be positive. This may have solved for some use
cases the user complaints that on clearing the areas of copper there is
still copper leftovers.

- added shortcut "SHIFT+G" to toggle the axis presence. Useful when one
wants to save a PNG file.
- changed color of the grid from 'gray' to 'dimgray'

- the selection shape is deleted when the object is deleted

- the plot area is now in a TAB.
- solved bug that allowed middle button click to create selection
- fixed issue with main window geometry restore (hopefully).
- made view toolbar to be hidden by default as it is not really needed
(we have the functions in menu, zoom is done with mouse wheel, and there
is also the canvas context menu that holds the functionality)
- remade the GUIElements.FCInput() and made a GUIElements.FCTab()
- on visibility plot toogle the selection shape is deleted

- made sure that on panning in Geometry editor, the context menu is not
displayed
- disabled App shortcut keys on entry in Geometry Editor so only the
local shortcut keys are working

- deleted metric units in canvas context menu
- added protection so object deletion can't be done until Geometry
Editor session is finished. Solved bug when the shapes on Geometry
Editor were not transfered to the New_geometry object yet and the
New_Geometry object is deleted. In this case the drawn shapes are left
in a intermediary state on canvas.

- added selection shape drawing in Geometry Editor preserving the
current behavior: click to select, click on canvas clear selection,
CTRL+click add to selection new shape but remove from selection
if already selected. Drag LMB from left to right select enclosed
shapes, drag LMB from right to left select touching shapes. Now the
selection is made based on
- added info message to be displayed in infobar, when a object is
renamed

20.06.2018

- there are two types of mouse drag selection (rectangle selection)
If there is a rectangle selection from left to right, the color of the
selection rectangle is blue and the selection is "enclosing" - this
means that the object to be selected has to be enclosed by the selecting
blue rectangle shape.
If there is a rectangle selection fro right to left, the color of the
selection rectangle is green and the selection is "touching" - this
means that it's enough to touch with the selecting green rectangle the
object(s) to be selected so they become selected
- changed the modifier key required to be pressed when LMB is ckicked
over canvas in order to copy to clipboard the coordinates of the click,
from CTRL to SHIFT. CTRL will be used for multiple selection.
- change the entry names in the canvas context menu
- disconnected the app mouse event functions while in geometry editor
since the geometry editor has it's own mouse event functions and there
was interference between object and geometry items. Exception for the
mouse release event so the canvas context menu still work.
- solved a bug that did not update the obj.options after a geometry
object was edited in geometry editor
- solved a bug in the signal that saved the position and dimensions of
the application window.
- solved a bug in app.on_preferences() that created an error when run
in Linux

18.06.2018 Update 1

- reverted the 'units' parameter change to 'global_units' due of a bug
that did not allow saving of the project
- modified the camlib transform (rotate, mirror, scale etc) functions
so now they work with Gerber file loaded with 'follow' parameter

18.06.2018

- reworked the Properties context menu option to a Tool that displays
more informations on the selected object(s)
- remade the FlatCAM project extension as .FlatPrj
- rearranged the toolbar menu entries to a more properly order
- objects can now be selected on canvas, a blue polygon is drawn around
when selected
- reworked the Tool Move so it will work with the new canvas selection
- reworked the Measurement Tool so it will work with the new canvas
selection
- canvas selection can now be done by dragging left mouse boutton and
creating a selection box over the objects
- when the objects are overlapped on canvas, the mouse click
selection works in a circular way, selecting the first, then the second,
then ..., then the last and then again the first and so on.
- double click on a object on canvas will open the Selected Tab
- each object store the bounding box coordinates in the options dict
- the bbox coordinates are updated on the obj options when the object
is modified by a transform function (rotate, scale etc)


15.06.2018

- the selection marker when moving is now a semitransparent Polygon
with a blue border
- rectified a small typo in the ToolTip for Excellon Format for
Diptrace excellon format; from 4:2 to 5:2
- corrected an error that cause no Gcode could be saved


14.06.2018

- more work on the contextual menu
- added Draw context menu
- added a new tool that bring together all the transformations, named
Transformation Tool (Rotate, Skew, Scale, Offset, Flip)
- added shorcut key 'Q' which toggle the units between IN and MM
- remade the Move tool, there is now a selection box to show where the
move is done
- remade the Measurement tool, there is now a line between the start
point of measurement and the end point of the measurement.
- renamed most of the system variables that have a global app effect to
global_name where name is the parameter (variable)


9.06.2018

- reverted to PyQt4. PyQt5 require too much software rewrite
- added calculators: units_calculator and V-shape Tool calculator
- solved bug in Join Excellon
- added right click menu over canvas

6.06.2018 Update

- fixed bug: G-Code could not be saved
- fixed bug: double clicking a category in Project Tab made the app to
crash
- remade the bounds() function to work with nested lists of objects as
per advice from JP which made the operation less performance taxing.
- added shortcut Shift+R that is complement to 'R'
- shorcuts 'R' and 'SHIFT+R' are working now in steps of 90 degrees
instead of previous 45 degrees.
- added filters in the open ... FlatCAM projects are saved automatically
as *.flat, the Gerber files have few categories. So the Excellons and
G-Code and SVG.

6.06.2018

- remade the transform functions (rotate, flip, skew) so they are now
working for joined objects, too
- modified the Skew and Rotate comamands: if they are applied over a
selection of objects than the origin point will be the center of the
biggest bounding box. That allow for perfect sync between the selected
objects
- started to modify the program so the exceptions are handled correctly
- solved bug where a crash occur when ObjCollection.setData didn't
return a bool value
- work in progress for handling situations when a different file is
loaded as another (like loading a Gerber file using Open Excellon
 commands.
- added filters on open_gerber and open_excellon Dialogs. There is still
the ability to select All Files but this should reduce the cases when
the user is trying to oprn a file from a wrong place.

4.06.2018

- finished PyQt4 to PyQt4 port on the Vispy variant (there were some changes
compared with the Matplotlib version for which the port was finished
some time ago)
- added Ctrl+S shortcut for the Geometry Editor. When is activated it will
save de geometry ("update") and return to the main App.
- modified the Mirror command for the case when multiple objects are
selected and we want to mirror all together. In this case they should mirror
around a bounding box to fill all.

3.06.2018

- removed the current drill path optimizations as they are inefficient
- implemented Google OR-tools drill path optimization in 2 flavors;
Basic OR-tools TSP algorithm and OR-Tools Metaheuristics Guided Local Path
- Move tool is moved to Menu -> Edit under the name Move Object

- solved some internal bugs (info command was creating an non-fatal
error in PyQt, regarding using QPixMaps outside GUI thread
- reworked camlib number parsing (still had some bugs)
- working in porting the application from usage of PyQt4 to PyQt4
- added TclCommands save_sys and list_sys. save_sys is saving all the
system default parameters and list_sys is listing them by the first
letters. listsys with no arguments will list all the system parameters.

29.05.2018

- modified the labels for the X,Y and Dx,Dy coordinates
- modified the menu entries, added more icons
- added initial work on a Excellon Editor
- modified the behavior of when clicking on canvas the coordinates were
copied to cliboard: now it is required to press CTRL key for this to
happen, and it will only happen just for left mouse button click
- removed the autocopy of the object name on new object creation
- remade the Tcl commands drillcncjob and cncjob
- added fix so the canvas is focused on the start of the program,
therefore the shortcuts work without the need for doing first a click
on canvas.



28.05.2018

- added total drill count column in Excellon Tool Table which displays the
total number of drills
- added aliases in panelize Tool (pan and panel should work)
- modified generate_milling method which had issues from the Python3 port
(it could not sort the tools due of dict to dict comparison no longer
possible).
- modified the 'default' postprocessor in order to include a space
between the value of Xcoord and the following Y
- made optional the using of threads for the milling command; by default
it is OFF (False) because in the current configuration it creates issues
when it is using threads
- modified the Panelize function and Tcl command Panelize. It was having
issues due to multithreading (kept trying to modify a dictionary in
redraw() method)and automatically selecting the last created object
(feature introduced by me). I've added a parameter to
the new_object method, named autoselected (by default it is True) and
in the panelize method I initialized it with False.
By initializing the plot parameter with False for the temporary objects,
I have increased dramatically the  generation speed of the panel because
now the temporary object are no longer ploted which consumed time.
- replaced log.warn() with log.warning() in camlib.py. Reason: deprecated
- fixed the issue that the "Defaults" button was having no effect when
clicked and Options Combo was in Project Options
- fixed issue with Tcl Shell loosing focus after each command, therefore
needing to click in the edit line before we type a new command (borrowed
from @brainstorm
- added a header in the postprocessor files mentioning that the GCODE
files were generated by FlatCAM.
- modified the number of decimals in some of the line entries to 4.
- added an alias for the millholes Tcl Command: 'mill'

27.04.2018

- modified the Gerber.scale() function from camlib.py in order to
allow loading Gerber files with 'follow' parameter in other units
than the current ones
- snap_max_entry is disabled when the DRAW toolbar is disabled (previous
fix didn't work)
- added drill count column in Excellon Tool Table which displays the
total number of drills for each tool

- added a new menu entry in Menu -> EDIT named "Join Excellon". It will
merge a selection of Excellon files into a new Excellon file
- added menu stubs for other Excellon based actions

- solved bug that was not possible to generate film from joined geometry
- improved toggle active/inactive of the object through SPACE key. Now
the command works not only for one object but also for a selection

26.05.2018

- made conversion to Python3
- added Rtree Indexing drill path optimization
- added a checkbox in Options Tab -> App Defaults -> Excellon
Group named Excellon Optim. Type from which it can be selected
the default optimization type: TS stands for Travelling
Salesman algorithm and Rtree stands for Rtree Indexing
- added a checkbox on the Grid Toolbar that when checked
(default status is checked) whatever value entered in the GridX entry
will be used instead of the now disabled GridY entry
- modified the default behavior on when a line_entry is clicked.
Now, on each click on a line_entry, the content is automatically
selected.
- snap_max_entry is disabled when the DRAW toolbar is disabled

24.05.2015

- in Geometry Editor added a initial form of Rotate Geometry command in
toolbar
- changed the way the geometry is finished if it requires a key: before
it was using key 'Space' now it uses 'Enter'
- added Shortcut for Rotate Geometry to key 'Space'
- after using a tool in Geometry Editor it automatically defaults to
'Select Tool'

23.05.2018

Added key shortcut's in FlatCAMApp and in Geometry Editor.

FlatCAMApp shortcut list:
1      Zoom Fit
2      Zoom Out
3      Zoom In
C      Copy Obj_Name
E      Edit Geometry (if selected)
G      Grid On/Off
M      Move Obj

N      New Geometry
R      Rotate
S      Shell Toggle
V      View Fit
X      Flip on X_axis
Y      Flip on Y_axis
~      Show Shortcut List

Space:   En(Dis)able Obj Plot
CTRL+A   Select All
CTRL+C   Copy Obj
CTRL+E   Open Excellon File
CTRL+G   Open Gerber File
CTRL+M   Measurement Tool
CTRL+O   Open Project
CTRL+S   Save Project As
Delete   Delete Obj'''


Geometry Editor Key shortcut list:
A       Add an 'Arc'
C       Copy Geo Item
G       Grid Snap On/Off
K       Corner Snap On/Off
M       Move Geo Item

N       Add an 'Polygon'
O       Add a 'Circle'
P       Add a 'Path'
R       Add an 'Rectangle'
S       Select Tool Active


~        Show Shortcut List
Space:   Rotate Geometry
Enter:   Finish Current Action
Escape:  Abort Current Action
Delete:  Delete Obj

22.05.2018

- Added Marlin postprocessor
- Added a new entry into the Geometry and Excellon Object's UI:
Feedrate rapid: the purpose is to set a feedrate for the G0
command that some firmwares like Marlin don't intepret as
'move with highest speed'
- FlatCAM was not making the conversion from one type of units to
another for a lot of parameters. Corrected that.
- Modified the Marlin Postprocessor so it will generate the required
GCODE.

21.05.2018

- added new icons for menu entries
- added shortcuts that work on the Project tab but also over
Plot. Shorcut list is accesed with shortcut key '~' sau '`'
- small GUI modification: on each "New File" command it will switch to
the Project Tab regardless on which tab we were.

- removed the global shear entries and checkbox as they can be
damaging and it will build effect upon effect, which is not good
- solved bug in that the Edit -> Shear on X (Y)axis could adjust
only in integers. Now the angle can be adjusted in float with
3 decimals.
- changed the tile of QInputDialog to a more general one
- changed the "follow" Tcl command to the new format
- added a new entry in the Menu -> File, to open a Gerber with
the follow parameter = True
- added a new checkbox in the Gerber Object Selection Tab that
when checked it will create a "follow" geometry
- added a few lines in Mill Holes Tcl command to check if there are
promises and raise an Tcl error if there are any.
- started to modify the Export_Svg Tcl command

20.05.2018

- changed the interpretation of the axis for the rotate and skew commands.
Actually I reversed them to reflect reality.
- for the rotate command a positive angle now rotates CW. It was reversed.
- added shortcuts (for outside CANVAS; the CANVAS has it's own set of shortcuts)
CTRL+C will copy to clipboard the name of the selected object
CTRL+A will Select All objects

"X" key will flip the selected objects on X axis

"Y" key will flip the selected objects on Y axis

"R" key will rotate CW with a 45 degrees step
- changed the layout for the top of th Options page. Added a checkbox and entries
for parameters for skew command. When the checkbox is checked it will save (and
load at the next startup of the program) the option that at each CNCJob generation
(be it from Excellon or Geometry) it will perform the Skew command with the 
parametrs set in the nearby field boxes (Skew X and Skey Y angles).
It is useful in case the CNC router is not perfectly alligned between the X and Y axis

- added some protection in case the skew command receive a None parameter

- BUG solved: made an UGLY (really UGLY) HACK so now, when there is a panel geometry
generated from GUI, the project WILL save. I had to create a copy of the generated 
panel geometry and delete the original panel geometry. This way there is no complain
from JSON module about circular reference.

Supplimentary:
- removed the Save buttons previously added on each Group in Application Defaults.
Replaced them with a single Save button that stays always on top of the Options TAB
- added settings for defaults for the Grid that are persistent
- changed the default view at FlatCAM startup: now the origin is in the center of the screen


19.05.2018

- last object that is opened (created) is always automatically selected and
the name of the object is automatically copied to clipboard; useful when
using the TCL command :)

- added new commands in MENU -> EDIT named: "Copy Object" and
"Copy Obj as Geom". The first command will duplicate any object (Geometry,
Gerber, Excellon).
The second command will duplicate the object as a geometry. For example,
holes in Excello now are just circles that can be "painted" if one wants it.

- added new Tool named ToolFreeformCutout. It does what it says, it will
make a board cutout from a "any shape" Gerber or Geometry file

- solved bug in the TCL command "drillcncjob" that always used the endz
parameter value as the toolchangez parameter value and for the endz value
used a default value = 1

- added postprocessor name into the TCL command "drillcncjob" parameters

- when adding a new geometry the default name is now: "New_Geometry" instead
of "New Geometry". TCL commands don't handle the spaces inside the name and
require adding quotes.

- solved bug in "cncjob" TCL command in which it used multidepth parameter as
always True regardless of the argument provided

- added a checkbox for Multidepth in the Options Tab -> Application Defaults


18.05.2018

- added an "Defaults" button in Excellon Defaults Group; it loads the
following configuration (Excellon_format_in 2:4, Excellon_format_mm 3:3,
Excellon_zeros LZ)
- added Save buttons for each Defaults Group; in the future more 
parameters will be propagated in the app, for now they are a few
- added functions for Skew on X axis and for Skew on Y menu stubs.
Now, clicking on those Menu -> Options -> Transform Object menu entries
will trigger those functions
- added a CheckBox button in the Options Tab -> Application Defaults that control
the behaviour of the TCL shell: checking it will make the TCL shell window visible
at each start-up, unchecking it the TCL shell window will be hidden until needed
- Depth/pass parameter from Geometry Object CNC Job is now in the
defaults and it will keep it's value until changed in the Application
Defaults.

17.05.2018

- added messages box for the Flip commands to show error in case there
is no object selected when the command is executed
- added field entries in the Options TAB - > Application Defaults for the
following newly introduced parameters: 
excellon_format_upper_in
excellon_format_lower_in
excellon_format_upper_mm
excellon_format_lower_mm

The ones with upper indicate how many digits are allocated for the units
and the ones with lower indicate how many digits from coordinates are 
alocated for the decimals.

[  Eg: Excellon format 2:4 in INCH
   excellon_format_upper_in = 2
   excellon_format_lower_in = 4
where the first 2 digits are for units and the last 4 digits are
decimals so from a number like 235589 we will get a coordinate 23.5589
]

- added Radio button in the Options TAB - > Application Defaults for the
Excellon_zeros parameter

After each change of those parameters the user will have to press 
"Save defaults" from File menu in order to propagate the new values, or
wait for the autosave to kick in (each 20sec).

Those parameters can be set in the set_sys TCL command.

15.05.2018
- modified SetSys TCL command: now it can change units
- modified SetSys TCL command: now it can set new parameters:
excellon_format_mm and excellon_format_in. the first one is when the
excellon units are MM and the second is for when the excellon units are
in INCH. Those parameters can be set with a number between 1 and 5 and it
signify how many digits are before coma.
- added new GUI command in EDIT -> Select All. It will select all
objects on the first mouse click and on the second will deselect all
(toggle action)
- added new GUI commands in Options -> Transform object. Added Rotate selection,
Flip on X axis of the selection and Flip on Y axis of the selection
For the Rotate selection command, negative numbers means rotation CCW and
positive numbers means rotation CW.

- cleaned up a bit the module imports
- worked on the excellon parsing for the case of trailing zeros.
If there are more than 6digits in the 
coordinates, in case that there is no period, now the software will 
identify the issue and attempt to correct it by dividing the coordinate 
further by 10 for each additional digit over 6. If the number of digits
is less than 6 then the software will multiply by 10 the coordinates

14.05.2018

- fixed bug in Geometry CNCJob generation that prevented generating 
the object
- added GRBL 1.1 postprocessor and Laser postprocessor (adapted from 
the work of MARCO A QUEZADA)


13.05.2018

- added postprocessing in correct form
- added the possibility to select an postprocessor for Excellon Object
- added a new postprocessor, manual_toolchange.py. It allows to change 
the tools and adjust the drill tip to touch the surface manually, always
in the X=0, Y=0, Z = toolchangeZ coordinates.
- fixed drillcncjob TCL command by adding toolchangeZ parameter
- fixed the posprocessor file template 'default.py' in the toolchange
command section
- after I created a feature that the message in infobar is cleared by
moving mouse on canvas, it generated a bug in TCL shell: everytime 
mouse was moved it will add a space into the TCL read only section.
Now this bug is fixed.
- added an EndZ parameter for the drillcncjob and cncjob TCL commands: it
will specify at what Z value to park the CNC when job ends
- the spindle will be turned on after the toolchange and it will be turned off
just before the final end move.

Previously:
- added GRID based working of FLATCAM
- added Set Origin command
- added FilmTool, PanelizeTool GUI, MoveTool
- and others


24.04.2018

- Remade the Measurement Tool: it now ask for the Start point of the measurement and then for the Stop point. After it will display the measurement until we left click again on the canvas and so on. Previously you clicked the start point and reset the X and Y coords displayed and then you moved the mouse pointer wherever you wanted to measure, but moving the mouse from there you lost the measurement.
- Added Relative measurement on the main plot
- Now both the measuring tool and the relative measurement will work only with the left click of the mouse button because middle mouse click and right mouse click are used for panning
- Renamed the tools files starting with Tool so they are grouped (in the future they may have their own folder like for TCL Commands)

- Commented some shortcut keys and functions for features that are not present anymore or they are planned to be in the future but unfinished (like buffer tool, paint tool)
- minor corrections regarding PEP8 (Pycharm complains about the m)
- solved bug in TclCommandsSetSys.py Everytime that the command was executed it complain about the parameter not being in the list (something like this). There was a missing “else:”
- when using the command “set_sys excellon_zeros” with parameter in lower case (either ‘l’ or ‘t’) now it is always written in the defaults file as capital letter

- solved a bug introduced by me: when apertures macros were detected in Excellon file, FlatCam will complain about missing dictionary key “size”. Now it first check if the aperture is a macro and perform the check for zero value only for apertures with “size” key
- solved a bug that didn't allowed FC to detect if Excellon file has leading zeros or trailing zeros
- solved a bug that FC was searching for char ‘%’ that signal end of Excellon header even in commented lines (latest versions of Eagle end the commented line with a ‘%’)


============================================

This fork features:

- Added buttons in the menu bar for opening of Gerber and Excellon files;
- Reduced number of decimals for drill bits to two decimals;
- Updated make_win32.py so it will work with cx_freeze 5.0.1 
- Added capability so FlatCAM can now read Gerber files with traces having zero value (aperture size is zero);
- Added Paint All / Seed based Paint functions from the JP's FlatCAM;
- Added Excellon move optimization (travelling salesman algorithm) cherry-picked from David Kahler: https://bitbucket.org/dakahler/flatcam
- Updated make_win32.py so it will work with cx_freeze 5.0.1 Corrected small typo in DblSidedTool.py
- Added the TCL commands in the new format. Picked from FLATCAM master.
- Hack to fix the issue with geometry not being updated after a TCL command was executed. Now after each TCL command the plot_all() function is executed and the canvas is refreshed.
- Added GUI for panelization TCL command
- Added GUI tool for the panelization TCL command: Changed some ToolTips.


============================================

Previously added features by Dennis

- "Clear non-copper" feature, supporting multi-tool work.
- Groups in Project view.
- Pan view by dragging in visualizer window with pressed MMB.
- OpenGL-based visualizer.

