Re: GTK app with scrolled window crashing trying to show a widget inside
On 12/30/2011 06:08 PM, Michael Torrie wrote: > On 12/30/2011 05:52 AM, David Nečas wrote: >> On Fri, Dec 30, 2011 at 01:28:32PM +0100, Moritz Renftle wrote: >>> i want to make one of those widgets visible from >>> another thread >> >> Use glib.idle_add() in that other thread to subsequently execute the >> actual Gtk+ code in the thread running the Gtk+ main loop. > > http://unpythonic.blogspot.com/2007/08/using-threads-in-pygtk.html > > It used to be that threading issues came up every week on the list. As > David says, the recommended way is using idle_add. However if you use > gdk locks appropriately, on Linux you can call Gtk calls directly from > threaded code. > > http://www.pardon-sleeuwaegen.be/antoon/python/page0.html > > But since this won't work so well on Windows, the idle_add() technique > is recommended as it is most safe and most portable. You may check out http://www.iki.fi/tml/fosdem-2006.pdf about gtk-win32 and threads. -- Emmanuel Thomas-Maurin ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: GTK app with scrolled window crashing trying to show a widget inside
On 12/30/2011 05:52 AM, David Nečas wrote: > On Fri, Dec 30, 2011 at 01:28:32PM +0100, Moritz Renftle wrote: >> i want to make one of those widgets visible from >> another thread > > Use glib.idle_add() in that other thread to subsequently execute the > actual Gtk+ code in the thread running the Gtk+ main loop. http://unpythonic.blogspot.com/2007/08/using-threads-in-pygtk.html It used to be that threading issues came up every week on the list. As David says, the recommended way is using idle_add. However if you use gdk locks appropriately, on Linux you can call Gtk calls directly from threaded code. http://www.pardon-sleeuwaegen.be/antoon/python/page0.html But since this won't work so well on Windows, the idle_add() technique is recommended as it is most safe and most portable. ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: GTK app with scrolled window crashing trying to show a widget inside
On Fri, Dec 30, 2011 at 01:28:32PM +0100, Moritz Renftle wrote: > i want to make one of those widgets visible from > another thread Use glib.idle_add() in that other thread to subsequently execute the actual Gtk+ code in the thread running the Gtk+ main loop. Yeti ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
GTK app with scrolled window crashing trying to show a widget inside
Hi, I'm programming a gtk-app with python and pygtk. my app consists of a gtk.scrolledwindow and several widgets packed into it horizontally. i want to make one of those widgets visible from another thread (when a button is pushed on a joystick). therefore i get the allocation of the widget and the adjustment of the scrolledwindow and make use of the gtk.Adjustment.clamp_page function to make sure the widget is visible on the page. def set_focus(self): adjust = self.scrolled_window.get_hadjustment() x_pos = float(self.allocation.x) x_pos_width = float(self.allocation.x + self.allocation.width) adjust.clamp_page(x_pos, x_pos_width) this works fine for sometime, but then some parts of the window are not repainted properly and the app crashes with a X Window System Error: it's not always the same Error but one of those: "BadDrawable", "BadIDChoice", "RenderBadPicture"... I guess that there is a problem with gtk.main() not knowing it has to refresh some areas of the window But I'm pretty desperate here! Any help is very appreciated, Moritz Renftle ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
