cpython/Lib/tkinter/commondialog.py at pythoncapi · pythoncapi/cpython

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# base class for tk common dialogues

# this module provides a base class for accessing the common

# dialogues available in Tk 4.2 and newer. use filedialog,

# colorchooser, and messagebox to access the individual

# dialogs.

# written by Fredrik Lundh, May 1997

from tkinter import *

class Dialog:

command = None

def __init__(self, master=None, **options):

self.master = master

self.options = options

if not master and options.get('parent'):

self.master = options['parent']

def _fixoptions(self):

pass # hook

def _fixresult(self, widget, result):

return result # hook

def show(self, **options):

# update instance options

for k, v in options.items():

self.options[k] = v

self._fixoptions()

# we need a dummy widget to properly process the options

# (at least as long as we use Tkinter 1.63)

w = Frame(self.master)

try:

s = w.tk.call(self.command, *w._options(self.options))

s = self._fixresult(w, s)

finally:

try:

# get rid of the widget

w.destroy()

except:

pass

return s