I'm trying to shave some time off the draw event by saving the image the first time it's drawn and then restoring it when requested based on the value of self.flag as shown in the simplified example below. Is there an easy way to do this?
def draw_event(self, da, ctx=None): """ Draw the cross section """ print "self.flag = ",self.flag if self.flag==0: # this code takes a long time to execute ctx.set_source_rgb(0.4,0.9,0.4) ctx.paint() ctx.set_source_rgb(0,0,0) ctx.move_to(390,90) ctx.line_to(500,200) ctx.stroke() # save_the_image else: if self.flag%2!=0: ctx.set_source_rgba(1,0.5,0.5,0.25) ctx.rectangle(400,100,100,100) ctx.fill() else: # restore_the_image _______________________________________________ pygtk mailing list pygtk@daa.com.au http://www.daa.com.au/mailman/listinfo/pygtk Read the PyGTK FAQ: http://faq.pygtk.org/
