python:Tkinter GUI (2)

 Abstract: OOP designs and quit buttons



 

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

"""

Created on Thu Jul 2 12:35:28 2015

@author: yuan

"""

import sys

from Tkinter import *

from tkMessageBox import *

class MyWindow:

def __init__(self, title='tkinter'):

self.win=Tk()

self.win.title(title)

self.title=title

#add a label

def win_label(self, txt):

widget=Label(self.win, text=txt)

widget.config(bg='green', fg='black')

widget.config(font=('times', 20, 'normal') )

widget.config(height=5, width=25)

widget.pack(expand=YES, fill=BOTH)

return self.win

#add a button

def config_button(self, widget, txt):

widget.config(text=txt)

widget.config(cursor='gumby')

widget.config(bd=5, relief=RAISED)

widget.config(bg='cyan', fg='black')

widget.config(font=('helvetica', 20, 'bold') )

widget.pack(padx=10, pady=10)

widget.pack(side=LEFT, expand=YES)

return widget

def exec_button(self, label, func):

widget=Button(self.win, command=func)

widget=self.config_button(widget, label)

return self.win

def callback(self):

if askyesno('verify', 'do your really want to quit?'):

showwarning('Yes', "Quit not yet implemented")

else:

showinfo('No', "Quit has been cancelled")

def quit(self):

ans=askokcancel('verify exit', 'really quit?')

if ans:

Frame.quit(self)

###main program

#the simplest label window

ww=MyWindow(title='Tkinter')

#the window will be present on the left top corner of the screen

#win=ww.win_v1('Hello GUI world')

#some decorations of labels and titles

win=ww.win_label('Hello world!')

win=ww.win_label('Good luck!')

#add two buttons

win=ww.exec_button('warning', ww.callback )

win=ww.exec_button('quit', sys.exit )

win=ww.exec_button('close', win.destroy)

win.mainloop()