#! /usr/bin/python2.7 # A Python function that generates dialog boxes with a text message, # optional bitmap, and any number of buttons. # Cf. Ousterhout, Tcl and the Tk Toolkit, Figs. 27.2-3, pp. 269-270. from Tkinter import * import sys def dialog(master, title, text, bitmap, default, *args): # 1. Create the top-level window and divide it into top # and bottom parts. w = Toplevel(master, class_='Dialog') w.title(title) w.iconname('Dialog') top = Frame(w, relief=RAISED, borderwidth=1) top.pack(side=TOP, fill=BOTH) bot = Frame(w, relief=RAISED, borderwidth=1) bot.pack(side=BOTTOM, fill=BOTH) # 2. Fill the top part with the bitmap and message. msg = Message(top, width='3i', text=text, font='-Adobe-Times-Medium-R-Normal-*-180-*') msg.pack(side=RIGHT, expand=1, fill=BOTH, padx='3m', pady='3m') if bitmap: bm = Label(top, bitmap=bitmap) bm.pack(side=LEFT, padx='3m', pady='3m') # 3. Create a row of buttons at the bottom of the dialog. var = IntVar() buttons = [] i = 0 for but in args: b = Button(bot, text=but, command=lambda v=var,i=i: v.set(i)) buttons.append(b) if i == default: bd = Frame(bot, relief=SUNKEN, borderwidth=1) bd.pack(side=LEFT, expand=1, padx='3m', pady='2m') b.lift() b.pack (in_=bd, side=LEFT, padx='2m', pady='2m', ipadx='2m', ipady='1m') else: b.pack (side=LEFT, expand=1, padx='3m', pady='3m', ipadx='2m', ipady='1m') i = i+1 # 4. Set up a binding for , if there's a default, # set a grab, and claim the focus too. if default >= 0: w.bind('', lambda e, b=buttons[default], v=var, i=default: (b.flash(), v.set(i))) oldFocus = w.focus_get() w.grab_set() w.focus_set() # 5. Wait for the user to respond, then restore the focus # and return the index of the selected button. w.waitvar(var) w.destroy() if oldFocus: oldFocus.focus_set() return var.get() # The rest is the test program. def go(): i = dialog(mainWidget, 'Not Responding', "The file server isn't responding right now; " "I'll keep trying.", '', -1, 'OK') print 'pressed button', i i = dialog(mainWidget, 'File Modified', 'File "tcl.h" has been modified since ' 'the last time it was saved. ' 'Do you want to save it before exiting the application?', 'warning', 0, 'Save File', 'Discard Changes', 'Return To Editor') print 'pressed button', i def test(): import sys global mainWidget mainWidget = Frame() Pack.config(mainWidget) start = Button(mainWidget, text='Press Here To Start', command=go) start.pack() endit = Button(mainWidget, text="Exit", command=sys.exit) endit.pack(fill=BOTH) mainWidget.mainloop() if __name__ == '__main__': test()