def __init__(self, renderer):
Widget.__init__(self)
self.set_widget(PersistentWindow())
self._widget.set_double_buffered(False)
self._widget.add_events(gtk.gdk.POINTER_MOTION_MASK)
self._widget.add_events(gtk.gdk.BUTTON_PRESS_MASK)
renderer.set_widget(self._widget)
