def set_renderer(self, renderer):
        """Set and initialize the renderer used by this instance.
        """
        self.renderer = renderer
        width, height = self.get_window_size()
        if width > 0 and height > 0:
            renderer.resize((width, height))
def set_renderer ( self , renderer ) : self . renderer = renderer width , height = self . get_window_size ( ) if width > 0 and height > 0 : renderer . resize ( ( width , height ) )
Set and initialize the renderer used by this instance.