- added a new feature for Gerber parsing: if the NO buffering is chosen in the Gerber Advanced Preferences there is now a checkbox to activate delayed buffering which will do the buffering in background allowing the user to work in between. I hope that this can be useful in case of large Gerber files.

AppObjects/AppObject.py

@@ -356,6 +356,10 @@ class AppObject(QtCore.QObject):
                 log.debug("%f seconds adding object and plotting." % (t1 - t0))
                 self.object_plotted.emit(t_obj)
 
+                if t_obj.kind == 'gerber' and self.app.defaults["gerber_delayed_buffering"] != 'full' and \
+                        self.app.defaults["gerber_delayed_buffering"]:
+                    t_obj.do_buffer_signal.emit()
+
         # Send to worker
         # self.worker.add_task(worker_task, [self])
         if plot is True:

AppObjects/FlatCAMGerber.py

@@ -37,6 +37,8 @@ class GerberObject(FlatCAMObj, Gerber):
     optionChanged = QtCore.pyqtSignal(str)
     replotApertures = QtCore.pyqtSignal()
 
+    do_buffer_signal = QtCore.pyqtSignal()
+
     ui_type = GerberObjectUI
 
     @staticmethod
@@ -214,6 +216,8 @@ class GerberObject(FlatCAMObj, Gerber):
         self.ui.aperture_table_visibility_cb.stateChanged.connect(self.on_aperture_table_visibility_change)
         self.ui.follow_cb.stateChanged.connect(self.on_follow_cb_click)
 
+        self.do_buffer_signal.connect(self.on_generate_buffer)
+
         # Show/Hide Advanced Options
         if self.app.defaults["global_app_level"] == 'b':
             self.ui.level.setText('<span style="color:green;"><b>%s</b></span>' % _('Basic'))
@@ -1490,7 +1494,7 @@ class GerberObject(FlatCAMObj, Gerber):
         Gerber.skew(self, angle_x=angle_x, angle_y=angle_y, point=point)
         self.replotApertures.emit()
 
-    def buffer(self, distance, join, factor=None):
+    def buffer(self, distance, join=2, factor=None):
         Gerber.buffer(self, distance=distance, join=join, factor=factor)
         self.replotApertures.emit()