1 from Tkinter import * 2 3 # this is the same as simple-demo-1.py, but uses 4 # subclassing. 5 # note that there is no explicit call to start Tk. 6 # Tkinter is smart enough to start the system if it's not already going. 7 8 9 class Test(Frame): 10 def printit(self): 11 print "hi" 12 13 def createWidgets(self): 14 self.QUIT = Button(self, text='QUIT', foreground='red', 15 command=self.quit) 16 self.QUIT.pack(side=BOTTOM, fill=BOTH) 17 18 self.draw = Canvas(self, width="5i", height="5i") 19 20 self.speed = Scale(self, orient=HORIZONTAL, from_=-100, to=100) 21 22 self.speed.pack(side=BOTTOM, fill=X) 23 24 # all of these work.. 25 self.draw.create_rectangle(0, 0, 10, 10, tags="thing", fill="blue") 26 self.draw.pack(side=LEFT) 27 28 def moveThing(self, *args): 29 velocity = self.speed.get() 30 str = float(velocity) / 1000.0 31 str = "%ri" % (str,) 32 self.draw.move("thing", str, str) 33 self.after(10, self.moveThing) 34 35 def __init__(self, master=None): 36 Frame.__init__(self, master) 37 Pack.config(self) 38 self.createWidgets() 39 self.after(10, self.moveThing) 40 41 42 test = Test() 43 44 test.mainloop() 45
