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| Current File : //usr/local/share/python2.5/Tools/modulator/Tkextra.py |
#! /usr/bin/env python
# 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 *
mainWidget = None
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', 'bd': 1,
Pack: {'side': 'top', 'fill': 'both'}})
bot = Frame(w, {'relief': 'raised', 'bd': 1,
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-*',
Pack: {'side': 'right', 'expand': 1,
'fill': 'both',
'padx': '3m', 'pady': '3m'}})
if bitmap:
bm = Label(top, {'bitmap': bitmap,
Pack: {'side': 'left',
'padx': '3m', 'pady': '3m'}})
# 3. Create a row of buttons at the bottom of the dialog.
buttons = []
i = 0
for but in args:
b = Button(bot, {'text': but,
'command': ('set', 'button', i)})
buttons.append(b)
if i == default:
bd = Frame(bot, {'relief': 'sunken', 'bd': 1,
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',
'ipady': '2m', 'ipady': '1m'})
i = i+1
# 4. Set up a binding for <Return>, if there's a default,
# set a grab, and claim the focus too.
if default >= 0:
w.bind('<Return>',
lambda e, b=buttons[default], i=default:
(b.flash(),
b.setvar('button', i)))
oldFocus = w.tk.call('focus') # XXX
w.grab_set()
w.focus()
# 5. Wait for the user to respond, then restore the focus
# and return the index of the selected button.
w.waitvar('button')
w.destroy()
w.tk.call('focus', oldFocus) # XXX
return w.getint(w.getvar('button'))
def strdialog(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', 'bd': 1,
Pack: {'side': 'top', 'fill': 'both'}})
if args:
bot = Frame(w, {'relief': 'raised', 'bd': 1,
Pack: {'side': 'bottom', 'fill': 'both'}})
# 2. Fill the top part with the bitmap, message and input field.
if bitmap:
bm = Label(top, {'bitmap': bitmap,
Pack: {'side': 'left',
'padx': '3m', 'pady': '3m'}})
msg = Message(top,
{'width': '3i',
'text': text,
'font': '-Adobe-Times-Medium-R-Normal-*-180-*',
Pack: {'side': 'left',
'fill': 'both',
'padx': '3m', 'pady': '3m'}})
field = Entry(top,
{'relief':'sunken',
Pack:{'side':'left',
'fill':'x',
'expand':1,
'padx':'3m', 'pady':'3m'}})
# 3. Create a row of buttons at the bottom of the dialog.
buttons = []
i = 0
for but in args:
b = Button(bot, {'text': but,
'command': ('set', 'button', i)})
buttons.append(b)
if i == default:
bd = Frame(bot, {'relief': 'sunken', 'bd': 1,
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',
'ipady': '2m', 'ipady': '1m'})
i = i+1
# 4. Set up a binding for <Return>, if there's a default,
# set a grab, and claim the focus too.
if not args:
w.bind('<Return>', lambda arg, top=top: top.setvar('button', 0))
field.bind('<Return>', lambda arg, top=top: top.setvar('button', 0))
elif default >= 0:
w.bind('<Return>',
lambda e, b=buttons[default], i=default:
(b.flash(),
b.setvar('button', i)))
field.bind('<Return>',
lambda e, b=buttons[default], i=default:
(b.flash(),
b.setvar('button', i)))
oldFocus = w.tk.call('focus') # XXX
w.grab_set()
field.focus()
# 5. Wait for the user to respond, then restore the focus
# and return the index of the selected button.
w.waitvar('button')
v = field.get()
w.destroy()
w.tk.call('focus', oldFocus) # XXX
if args:
return v, w.getint(w.getvar('button'))
else:
return v
def message(str):
i = dialog(mainWidget, 'Message', str, '', 0, 'OK')
def askyn(str):
i = dialog(mainWidget, 'Question', str, '', 0, 'No', 'Yes')
return i
def askync(str):
i = dialog(mainWidget, 'Question', str, '', 0, 'Cancel', 'No', 'Yes')
return i-1
def askstr(str):
i = strdialog(mainWidget, 'Question', str, '', 0)
return i
def askfile(str): # XXXX For now...
i = strdialog(mainWidget, 'Question', str, '', 0)
return i
# 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
print message('Test of message')
print askyn('Test of yes/no')
print askync('Test of yes/no/cancel')
print askstr('Type a string:')
print strdialog(mainWidget, 'Question', 'Another string:', '',
0, 'Save', 'Save as text')
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': 'exit',
Pack: {'fill' : 'both'}})
mainWidget.mainloop()
if __name__ == '__main__':
_test()