# -*- coding: utf-8 -*-

"""
ZetCode Tkinter tutorial

This program toggles the title of the
window with the Checkbutton widget

author: Jan Bodnar
last modified: December 2010
website: www.zetcode.com
"""


from tkinter import Tk, Frame, Checkbutton
from tkinter import IntVar, BOTH


class Example(Frame):
  
    def __init__(self, parent):
        Frame.__init__(self, parent)   
         
        self.parent = parent        
        self.initUI()
        
    def initUI(self):
      
        self.parent.title("Checkbutton")

        self.pack(fill=BOTH, expand=1)
        self.var = IntVar()
        
        cb = Checkbutton(self, text="Show title",
            variable=self.var, command=self.onClick)
        cb.select()
        cb.place(x=50, y=50)


    def onClick(self):
       
        if self.var.get() == 1:
            self.master.title("Checkbutton")
        else:
            self.master.title("")


def main():
  
    root = Tk()
    root.geometry("250x150+300+300")
    app = Example(root)
    root.mainloop()  


if __name__ == '__main__':
    main()