# -*- coding: utf-8 -*-

__author__ = 'awangenh'

"""

@author: awangenh

Adaptations for usage with Scratchduino: Aldo von Wangenheim

Copyright (c) 2013-15 Iniciativa Computação na Escola

Adapted from http://effbot.org/tkinterbook

This program is free software; you can redistribute it and/or

modify it under the terms of the GNU Lesser General Public

License as published by the Free Software Foundation; either

version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public

License along with this library; if not, write to the Free Software

Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

"""

from Tkinter import *

import os

class Dialog(Toplevel):

def __init__(self, parent, title = None, message = None):

Toplevel.__init__(self, parent)

self.transient(parent)

if title:

self.title(title)

if message:

self.message = message

else:

self.message = ''

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)

self.text = Text(master=self)

self.text.insert(END, self.message)

self.text.pack(side=TOP, pady=5, padx=5)

w = Button(box, text="OK", width=10, command=self.ok, default=ACTIVE)

w.pack(side=BOTTOM, pady=5, padx=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