def OnKeyDown(self, key_code):
if key_code == ord('A'):
if self.drawing_mode == ArcDrawingMode:
# switch back to previous drawing mode
if len(self.save_drawing_mode) > 0:
self.drawing_mode = self.save_drawing_mode[-1]
self.save_drawing_mode.pop()
else:
# switch to arc drawing mode until a is released
self.save_drawing_mode.append(self.drawing_mode)
self.drawing_mode = ArcDrawingMode
wx.GetApp().frame.input_mode_canvas.UpdateTitleProperty()
return True
return Drawing.OnKeyDown(self, key_code)
