def rectangle(self, gc, x, y, width, height, onerror=None):
request.PolyRectangle(display=self.display,
onerror=onerror,
drawable=self.id,
gc=gc,
rectangles=[(x, y, width, height)])
def poly_rectangle(self, gc, rectangles, onerror=None):
request.PolyRectangle(display=self.display,
onerror=onerror,
drawable=self.id,
gc=gc,
rectangles=rectangles)
