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Filename : Balloon.py
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# -*-mode: python; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
#
# $Id$
#
# Tix Demonstration Program
#
# This sample program is structured in such a way so that it can be
# executed from the Tix demo program "tixwidgets.py": it must have a
# procedure called "RunSample". It should also have the "if" statment
# at the end of this file so that it can be run as a standalone
# program.

# This file demonstrates the use of the tixBalloon widget, which provides
# an interesting way to give help tips about elements in your user interface.
# Your can display the help message in a "balloon" and a status bar widget.
#

import Tix

TCL_ALL_EVENTS          = 0

def RunSample (root):
    balloon = DemoBalloon(root)
    balloon.mainloop()
    balloon.destroy()

class DemoBalloon:
    def __init__(self, w):
        self.root = w
        self.exit = -1

        z = w.winfo_toplevel()
        z.wm_protocol("WM_DELETE_WINDOW", lambda self=self: self.quitcmd())

        status = Tix.Label(w, width=40, relief=Tix.SUNKEN, bd=1)
        status.pack(side=Tix.BOTTOM, fill=Tix.Y, padx=2, pady=1)

        # Create two mysterious widgets that need balloon help
        button1 = Tix.Button(w, text='Something Unexpected',
                             command=self.quitcmd)
        button2 = Tix.Button(w, text='Something Else Unexpected')
        button2['command'] = lambda w=button2: w.destroy()
        button1.pack(side=Tix.TOP, expand=1)
        button2.pack(side=Tix.TOP, expand=1)

        # Create the balloon widget and associate it with the widgets that we want
        # to provide tips for:
        b = Tix.Balloon(w, statusbar=status)

        b.bind_widget(button1, balloonmsg='Close Window',
                      statusmsg='Press this button to close this window')
        b.bind_widget(button2, balloonmsg='Self-destruct button',
                      statusmsg='Press this button and it will destroy itself')

    def quitcmd (self):
        self.exit = 0

    def mainloop(self):
        foundEvent = 1
        while self.exit < 0 and foundEvent > 0:
            foundEvent = self.root.tk.dooneevent(TCL_ALL_EVENTS)

    def destroy (self):
        self.root.destroy()

if __name__ == '__main__':
    root = Tix.Tk()
    RunSample(root)