- finished work in ToolSolderPaste

FlatCAMObj.py

@@ -4695,6 +4695,9 @@ class FlatCAMCNCjob(FlatCAMObj, CNCjob):
        '''
         self.exc_cnc_tools = {}
 
+        # flag to store if the CNCJob is part of a special group of CNCJob objects that can't be processed by the
+        # default engine of FlatCAM. They generated by some of tools and are special cases of CNCJob objects.
+        self. special_group = None
 
         # for now it show if the plot will be done for multi-tool CNCJob (True) or for single tool
         # (like the one in the TCL Command), False
@@ -4944,11 +4947,22 @@ class FlatCAMCNCjob(FlatCAMObj, CNCjob):
         preamble = str(self.ui.prepend_text.get_value())
         postamble = str(self.ui.append_text.get_value())
 
-        self.export_gcode(filename, preamble=preamble, postamble=postamble)
+        gc = self.export_gcode(filename, preamble=preamble, postamble=postamble)
+        if gc == 'fail':
+            return
+
         self.app.file_saved.emit("gcode", filename)
         self.app.inform.emit("[success] Machine Code file saved to: %s" % filename)
 
     def on_modifygcode_button_click(self, *args):
+        preamble = str(self.ui.prepend_text.get_value())
+        postamble = str(self.ui.append_text.get_value())
+        gc = self.export_gcode(preamble=preamble, postamble=postamble, to_file=True)
+        if gc == 'fail':
+            return
+        else:
+            self.app.gcode_edited = gc
+
         # add the tab if it was closed
         self.app.ui.plot_tab_area.addTab(self.app.ui.cncjob_tab, "Code Editor")
 
@@ -4959,10 +4973,6 @@ class FlatCAMCNCjob(FlatCAMObj, CNCjob):
         # Switch plot_area to CNCJob tab
         self.app.ui.plot_tab_area.setCurrentWidget(self.app.ui.cncjob_tab)
 
-        preamble = str(self.ui.prepend_text.get_value())
-        postamble = str(self.ui.append_text.get_value())
-        self.app.gcode_edited = self.export_gcode(preamble=preamble, postamble=postamble, to_file=True)
-
         # first clear previous text in text editor (if any)
         self.app.ui.code_editor.clear()
 
@@ -5076,6 +5086,14 @@ class FlatCAMCNCjob(FlatCAMObj, CNCjob):
         roland = False
         hpgl = False
 
+        try:
+            if self.special_group:
+                self.app.inform.emit("[WARNING_NOTCL]This CNCJob object can't be processed because "
+                                     "it is a %s CNCJob object." % str(self.special_group))
+                return 'fail'
+        except AttributeError:
+            pass
+
         # detect if using Roland postprocessor
         try:
             for key in self.cnc_tools: