tkSimpleDialog.py

# Found on the pythonware website
# URL: http://www.pythonware.com/library/tkinter/introduction/dialog-windows.htm

from Tkinter import *
import os

class Dialog(Toplevel):
    def __init__(self, parent, title = None):
            Toplevel.__init__(self, parent)
            self.transient(parent)
            if title:
                self.title(title)
            self.parent = parent
            self.result = None

            body = Frame(self)
            self.initial_focus = self.body(body)
            body.pack(padx=5, pady=5)

            self.buttonbox()
            self.grab_set()

            if not self.initial_focus:
                self.initial_focus = self

            self.protocol("WM_DELETE_WINDOW", self.cancel)
            self.geometry("+%d+%d" % (parent.winfo_rootx()+50,
                                      parent.winfo_rooty()+50))

            self.initial_focus.focus_set()
            self.wait_window(self)

        #
        # construction hooks
        #

    def body(self, master):
        # create dialog body.  return widget that should have
        # initial focus.  this method should be overridden
        pass

    def buttonbox(self):
        # add standard button box. override if you don't want the
        # standard buttons
                        
        box = Frame(self)

        w = Button(box, text="OK", width=10, command=self.ok, default=ACTIVE)
        w.pack(side=LEFT, padx=5, pady=5)
        w = Button(box, text="Cancel", width=10, command=self.cancel)
        w.pack(side=LEFT, padx=5, pady=5)

        self.bind("<Return>", self.ok)
        self.bind("<Escape>", self.cancel)

        box.pack()

    #
    # standard button semantics
    #

    def ok(self, event=None):

        if not self.validate():
            self.initial_focus.focus_set() # put focus back
            return

        self.withdraw()
        self.update_idletasks()
        self.apply()
        self.cancel()

    def cancel(self, event=None):

        # put focus back to the parent window
        self.parent.focus_set()
        self.destroy()

    #
    # command hooks
    #

    def validate(self):
        return 1 # override

    def apply(self):
        pass # override