cpython/Demo/tkinter/matt/subclass-existing-widgets.py

34 lines
720 B
Python

from Tkinter import *
# This is a program that makes a simple two button application
class New_Button(Button):
def callback(self):
print self.counter
self.counter = self.counter + 1
def createWidgets(top):
f = Frame(top)
f.pack()
f.QUIT = Button(f, {'text': 'QUIT',
'fg': 'red',
'command': top.quit})
f.QUIT.pack({'side': 'left', 'fill': 'both'})
# a hello button
f.hi_there = New_Button(f, {'text': 'Hello'})
# we do this on a different line because we need to reference f.hi_there
f.hi_there.config({'command' : f.hi_there.callback})
f.hi_there.pack({'side': 'left'})
f.hi_there.counter = 43
root = Tk()
createWidgets(root)
root.mainloop()