f.setdelegate(filter.delegate)
filter.setdelegate(None)
-
def main():
+ import Tkinter as Tk
class Tracer(Delegator):
def __init__(self, name):
self.name = name
def delete(self, *args):
print(self.name, ": delete", args)
self.delegate.delete(*args)
- root = Tk()
+ root = Tk.Tk()
root.wm_protocol("WM_DELETE_WINDOW", root.quit)
- text = Text()
+ text = Tk.Text()
text.pack()
text.focus_set()
p = Percolator(text)
t2 = Tracer("t2")
p.insertfilter(t1)
p.insertfilter(t2)
- root.mainloop()
+ root.mainloop() # click close widget to continue...
p.removefilter(t2)
root.mainloop()
p.insertfilter(t2)
root.mainloop()
if __name__ == "__main__":
- from Tkinter import *
main()