1 from Tkinter import * 2 3 # This program shows how to use the "after" function to make animation. 4 5 class Test(Frame): 6 def printit(self): 7 print "hi" 8 9 def createWidgets(self): 10 self.QUIT = Button(self, text='QUIT', foreground='red', 11 command=self.quit) 12 self.QUIT.pack(side=LEFT, fill=BOTH) 13 14 self.draw = Canvas(self, width="5i", height="5i") 15 16 # all of these work.. 17 self.draw.create_rectangle(0, 0, 10, 10, tags="thing", fill="blue") 18 self.draw.pack(side=LEFT) 19 20 def moveThing(self, *args): 21 # move 1/10 of an inch every 1/10 sec (1" per second, smoothly) 22 self.draw.move("thing", "0.01i", "0.01i") 23 self.after(10, self.moveThing) 24 25 26 def __init__(self, master=None): 27 Frame.__init__(self, master) 28 Pack.config(self) 29 self.createWidgets() 30 self.after(10, self.moveThing) 31 32 33 test = Test() 34 35 test.mainloop() 36
