class SimpleCanvas(gtk.DrawingArea):
__gtype_name__ = "SimpleCanvas"
framerate = 25
def __init__(self, *args, **kwargs):
gtk.DrawingArea.__init__(self, *args, **kwargs)
self._width = 0
self._height = 0
self.connect("configure-event", self._configure_event_cb)
self.connect("expose-event", self._expose_event_cb)
self.root = CanvasItem()
self.start = time.time()
self.clock = 0
gobject.timeout_add(1000 / self.framerate, self._paint_clock)
def _paint_clock(self):
self.queue_draw()
self.clock = time.time() - self.start
return True
def _configure_event_cb(self, self2, event):
self._width = event.width
self._height = event.height
def _expose_event_cb(self, self2, event):
context = self.window.cairo_create()
context.rectangle(*event.area)
context.clip()
self.paint(context)
return False
def paint(self, cr):
self.root.paint(cr)
def __init__(self, *args, **kwargs):
gtk.DrawingArea.__init__(self, *args, **kwargs)
self._width = 0
self._height = 0
self.connect("configure-event", self._configure_event_cb)
self.connect("expose-event", self._expose_event_cb)
self.root = CanvasItem()
self.start = time.time()
self.clock = 0
gobject.timeout_add(1000 / self.framerate, self._paint_clock)