Traceback (most recent call last):
	File "/usr/share/mypaint/gui/drawwindow.py", line 1268, zoom_cb(self=<Window object at 0x42341648 (HildonStackableWindow at 0xb87038)>, action=<gtk.Action object at 0x429097b0 (GtkAction at 0xbdab40)>)
				def zoom_cb(self, action):
						self.zoom(action.get_name())
				def rotate_cb(self, action):
	variables: {'self.zoom': ('local', <bound method Window.zoom of <Window object at 0x42341648 (HildonStackableWindow at 0xb87038)>>), 'action.get_name': ('local', <built-in method get_name of gtk.Action object at 0x429097b0>)}
	File "/usr/share/mypaint/gui/drawwindow.py", line 1290, zoom(self=<Window object at 0x42341648 (HildonStackableWindow at 0xb87038)>, command='ZoomOut')
						z = self.zoomlevel_values[self.zoomlevel]
						self.tdw.set_zoom(z)
	variables: {'z': ('local', 0.66666666666666663), 'self.tdw.set_zoom': ('local', <bound method TiledDrawWidget.set_zoom of <TiledDrawWidget object at 0x43133a80 (GtkDrawingArea at 0xe7dc00)>>)}
	File "/usr/share/mypaint/gui/tileddrawwidget.py", line 383, set_zoom(self=<TiledDrawWidget object at 0x43133a80 (GtkDrawingArea at 0xe7dc00)>, zoom=0.66666666666666663)
						def f(): self.scale = zoom
						self.rotozoom_with_center(f)
	variables: {'self.rotozoom_with_center': ('local', <bound method TiledDrawWidget.rotozoom_with_center of <TiledDrawWidget object at 0x43133a80 (GtkDrawingArea at 0xe7dc00)>>), 'f': ('local', <function f at 0x43078d70>)}
	File "/usr/share/mypaint/gui/tileddrawwidget.py", line 358, rotozoom_with_center(self=<TiledDrawWidget object at 0x43133a80 (GtkDrawingArea at 0xe7dc00)>, function=<function f at 0x43078d70>)
						else:
								w, h = self.window.get_size()
								cx, cy = w/2.0, h/2.0
	variables: {'h': (None, None), 'w': (None, None)}
AttributeError: 'NoneType' object has no attribute 'get_size'