On Mar 7, 2009, at 1:22 PM, alex goretoy wrote:
I apologize for reposting this....I just never received an answer
from the pythonlist(which makes sense, since It was intended for
pygtk list )
Please, how to make shmingleton show contents again when re-opening
window(hide(), then show() or show_all()) without recreating it?
does GC run on the destroyed object if I destroy() the window? If
so , then that means I have to recreate it and my options are to
hide() then show(), but how to get contents back?
There seems to be not alot of content on this subject on the net.
I use a delete handler that calls hide then returns True. That way the
widget isn't destroyed and I can then just call show when the dialog
needed to be displayed again.
I am trying to create a singleton window in pygtk and for the life
of me can't seem to figure out a better way to go about doing this.
The way I'm doing it now is to recreate the window and show it.
Example code is below. I would much appreciate any assistance in
this matter. I've googled to no avail. I'm hiding the child window
because when I execute main_quit on the child it kills parent (which
makes sense).
My singleton hack works, but its cluncky, I am wondering if theres
some other way(working shmingleton?).
My question is this. How to create a singleton child window without
hiding old childs(seeing as this creates many hidden childs after a
while) or how to hide it and when showing it again also have it
display all contents in the child window?
Thank you.
#!/usr/bin/env python
import os, sys
import pygtk
pygtk.require('2.0')
try:
import gtk
except:
print >> sys.stderr, "You need to install the python gtk bindings"
sys.exit(1)
class Singleton_Test(object):
def __init__(self):
self.root_window = gtk.Window( type=gtk.WINDOW_TOPLEVEL )
self.root_window.set_title("Singleton Test")
self.root_window.connect("delete_event", lambda w,e:
gtk.main_quit())
self.vbox = gtk.VBox(False,0)
self.root_window.add(self.vbox)
self.vbox.show()
self.singleton_button = gtk.Button("SINGLETON")
self.singleton_button.connect("clicked",self.singleton_cb)
self.vbox.pack_start(self.singleton_button,False,False,0)
self.singleton_button.show()
self.shmingleton_button = gtk.Button("SHMINGLETON")
self.shmingleton_button.connect("clicked",self.shmingleton_cb)
self.vbox.pack_start(self.shmingleton_button,False,False,0)
self.shmingleton_button.show()
self.create_singleton_child_window()
self.root_window.show()
singleton_window_count=0
def singleton_cb(self,w):
if self.singleton_window_count>0:
self.create_singleton_child_window()
self.singleton_child_window.show()
print "singleton child window count is
",self.singleton_window_count
self.singleton_window_count+=1
def shmingleton_cb(self,w):
self.singleton_child_window.show_all() #doesn't work as
expected, neither does show
def create_singleton_child_window(self):
self.singleton_child_window = gtk.Window(gtk.WINDOW_TOPLEVEL)
self.singleton_child_window.set_title("SINGLETON child")
#only hiding since gtk.main_quit kills parent, any better way?
self.singleton_child_window.connect("destroy", lambda w:
self.singleton_child_window.hide()) #or destroy()
self.singleton_child_window.connect("delete_event", lambda w,e:
self.singleton_child_window.hide()) #or destroy()
self.vbox = gtk.VBox(False, 0)
self.singleton_child_window.add(self.vbox)
self.vbox.show()
self.label = gtk.Label("SINGLETON")
self.vbox.pack_start(self.label,False,False,0)
self.label.show()
def main(self):
gtk.main()
if __name__ == "__main__":
singleton = Singleton_Test()
singleton.main()
-Alex Goretoy
http://www.goretoy.com
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--
Steve McClure
[email protected]
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Read the PyGTK FAQ: http://faq.pygtk.org/
