1 # -*-mode: python; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*- 2 # 3 # $Id$ 4 # 5 # Tix Demonstration 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 # an 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) 69
