python gtk multi window

Question

i have a big problem (for me!) with python gtk module.

i can open multi windows; but i can't close singly ( one time , one window ). if i close a window, all windows close automatically. i want to close the first window only. after closing firt window, come a new window ( by my choice).

for example :

#!/usr/bin/env python import pygtk pygtk.require20() import gtk class CLS1(object): def __init__(self): self.mywindow = gtk.Window(gtk.WINDOW_TOPLEVEL) self.mywindow.connect("delete_event", gtk.main_quit) self.btn = gtk.Button("Cls1|Btn") self.mywindow.add(self.btn) self.mywindow.show_all() def main(self): gtk.main() class CLS2(object): def __init__(self): self.mywindow = gtk.Window(gtk.WINDOW_TOPLEVEL) self.mywindow.connect("delete_event", gtk.main_quit) self.btn = gtk.Button("Cls2|Btn") self.mywindow.add(self.btn) self.mywindow.show_all() def main(self): gtk.main() class APP(object): def __init__(self): self.mywindow = gtk.Window(gtk.WINDOW_TOPLEVEL) self.mywindow.connect("delete_event", gtk.main_quit) self.hori = gtk.HBox() self.btn1 = gtk.Button("AppBtn1") self.btn2 = gtk.Button("AppBtn2") self.btn1.connect("clicked", self.show_me , "AppBtn1") self.btn2.connect("clicked", self.show_me , "AppBtn2") self.hori.pack_start(self.btn1) self.hori.pack_start(self.btn2) self.mywindow.add(self.hori) self.mywindow.show_all() def show_me(self, penar, data): if data=="AppBtn1" : CLS1().main() if data=="AppBtn2": CLS2().main() gtk.main_quit() def main(self): gtk.main() APP().main()

i want this :

1- i will run the program

2- the "APP" class will work and will come "APP" window

3- if i click a button (AppBt1 or AppBtn2) ; the "APP" window will close (automatically ; not by me!)

4- if i was clicked "AppBtn1" button on "APP" window (@step 3) ; the "CLS1" class will work and its window will open

,or if i was clicked "AppBtn2" button on "APP" window (@step 3) ; the "CLS2" class will work and its window will open

i wanna only one window on the screen while program running; if i click a button ; its window will close and a new window will open (by my choice, and automatically!)

how can i do this? and can you write its code :) thanks a lot !

liberforce · Accepted Answer · 2012-12-21 23:37:08Z

Calling gtk.main_quit will kill the whole program (it basically stop GTK). So what you need, is just to stop GTK when the last window has been closed. What you're currently doing is stopping GTK when any window is closed.

So just use a global variable that you will use as a counter of the windows open. On the delete-event handler, decrement that counter, and if it reached 0 that means you have no more windows open, and you can call gtk.main_quit, otherwise, do nothing and the window will just be normally destroyed.

To kill the parent window, just pass the parent as the last parameter when you connect to the clicked signal. In the associated callback, you'll get that last parameter and call gtk.Widget.destroy on it.

Vreality · Accepted Answer · 2012-12-21 22:47:44Z

Well a better way might be to modify the window that's already open instead of closing it and opening another.

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