Demo/tix/samples/Balloon.py

   1 # -*-mode: python; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
   2 #
   3 # $Id$
   4 #
   5 # Tix Demostration Program
   6 #
   7 # This sample program is structured in such a way so that it can be
   8 # executed from the Tix demo program "tixwidgets.py": it must have a
   9 # procedure called "RunSample". It should also have the "if" statment
  10 # at the end of this file so that it can be run as a standalone
  11 # program.
  12
  13 # This file demonstrates the use of the tixBalloon widget, which provides
  14 # a interesting way to give help tips about elements in your user interface.
  15 # Your can display the help message in a "balloon" and a status bar widget.
  16 #
  17
  18 import Tix
  19
  20 TCL_ALL_EVENTS          = 0
  21
  22 def RunSample (root):
  23     balloon = DemoBalloon(root)
  24     balloon.mainloop()
  25     balloon.destroy()
  26
  27 class DemoBalloon:
  28     def __init__(self, w):
  29         self.root = w
  30         self.exit = -1
  31
  32         z = w.winfo_toplevel()
  33         z.wm_protocol("WM_DELETE_WINDOW", lambda self=self: self.quitcmd())
  34
  35         status = Tix.Label(w, width=40, relief=Tix.SUNKEN, bd=1)
  36         status.pack(side=Tix.BOTTOM, fill=Tix.Y, padx=2, pady=1)
  37
  38         # Create two mysterious widgets that need balloon help
  39         button1 = Tix.Button(w, text='Something Unexpected',
  40                              command=self.quitcmd)
  41         button2 = Tix.Button(w, text='Something Else Unexpected')
  42         button2['command'] = lambda w=button2: w.destroy()
  43         button1.pack(side=Tix.TOP, expand=1)
  44         button2.pack(side=Tix.TOP, expand=1)
  45
  46         # Create the balloon widget and associate it with the widgets that we want
  47         # to provide tips for:
  48         b = Tix.Balloon(w, statusbar=status)
  49
  50         b.bind_widget(button1, balloonmsg='Close Window',
  51                       statusmsg='Press this button to close this window')
  52         b.bind_widget(button2, balloonmsg='Self-destruct button',
  53                       statusmsg='Press this button and it will destroy itself')
  54
  55     def quitcmd (self):
  56         self.exit = 0
  57
  58     def mainloop(self):
  59         foundEvent = 1
  60         while self.exit < 0 and foundEvent > 0:
  61             foundEvent = self.root.tk.dooneevent(TCL_ALL_EVENTS)
  62
  63     def destroy (self):
  64         self.root.destroy()
  65
  66 if __name__ == '__main__':
  67     root = Tix.Tk()
  68     RunSample(root)