On Tue, Feb 16, 2010 at 10:15 AM, Sam Spilsbury <smspil...@gmail.com> wrote: > Hmm, my mail client must have cut this message into two mails (bizzare bug). > > In case it is actually the list doing this, here is the text of the > mail in full: http://pastebin.ca/1797937 > > Otherwise it is pasted below: > > Hey everyone, > > I'm helping to write a reparenting window manager and we are drawing > some of our decorations using GDK. > > A X Window "frame" is provided to the application that draws the frame > window and from this we create a GdkWindow * with > gdk_window_foreign_new (). The colormap is set to the default colormap > for the screen. > > The frame window provided to the application is the parent of a client > window for our window manager and it's parent is a "wrapper" window > between which the window manager handles. We draw directly into this > "frame" window. > > From here, the decorations are drawn on to a GdkPixmap (made into a > GdkDrawable) of the same depth as the frame window. Once that is done, > that pixmap is copied on to the frame window using > gdk_window_set_back_pixmap. > > Unfortunately, I must be missing something since it doesn't appear to > render correctly. I dumped the pixmap and the corresponding frame > window drawables using gdk_pixbuf_get_from_drawable and saving it > using gdk_pixbuf_save. Linked at the bottom are corresponding images > of the intended drawing on the frame window (the pixmap) and the > drawable dump of the frame window. As you might see, the frame window > is drawn in a corrupt fashion. I also tried calling gdk_window_clear > () and dumping the drawable from that, but I get a similar result. > > I have also linked a pastebin to the code. Unfortunately, it's heavily > linked to the development version of compiz, so you may need to > compile that should you need to test it. The drawing happens in void > draw_window_decoration (). The decoration size is calculated in > calc_window_decoration_size (). We take the frame window and create a > GdkWindow from it in add_frame_window ().
Ack, just realized I accidentally sent to gtk-devel and not gtk-app-devel - apologies, I have cc'd the app-devel list Sorry for bothering you! Regards, Sam > > Any pointers of what I might be doing wrong here would be great! > > Kind Regards, > > Sam > > [Intended window background] http://imgur.com/88W7x > [Actual drawable dump of the window background] http://imgur.com/K44ed > [Pastebin of the code, to where you should replace > /gtk/window-decorator/gtk-window-decorator.c in the compiz/core > section should you choose to test it] http://pastebin.ca/1797929 > > On Tue, Feb 16, 2010 at 10:11 AM, Sam Spilsbury <smspil...@gmail.com> wrote: >> Hey everyone, >> >> I'm helping to write a reparenting window manager and we are drawing >> some of our decorations using GDK. >> >> A X Window "frame" is provided to the application that draws the frame >> window and from this we create a GdkWindow * with >> gdk_window_foreign_new (). The colormap is set to the default colormap >> for the screen. >> >> The frame window provided to the application is the parent of a client >> window for our window manager and it's parent is a "wrapper" window >> between which the window manager handles. We draw directly into this >> "frame" window. >> >> From here, the decorations are drawn on to a GdkPixmap (made into a >> GdkDrawable) of the same depth as the frame window. Once that is done, >> that pixmap is copied on to the frame window using >> gdk_window_set_back_pixmap. >> >> Unfortunately, I must be missing something since it doesn't appear to >> render correctly. I dumped the pixmap and the corresponding frame >> window drawables using gdk_pixbuf_get_from_drawable and saving it >> using gdk_pixbuf_save. Linked at the bottom are corresponding images >> of the intended drawing on the frame window (the pixmap) and the >> drawable dump of the frame window. As you might see, the frame window >> is drawn in a corrupt fashion. I also tried calling gdk_window_clear >> () and dumping the drawable from that, but I get a similar result. >> >> I have also linked a pastebin to the code. Unfortunately, it's heavily >> linked to the development version of compiz, so you may need to >> compile that should you need to test it. The drawing happens in void >> draw_window_decoration (). The decoration size is calculated in >> calc_window_decoration_size (). We take the frame window and create a >> GdkWindow from it in add_frame_window (). >> >> Any pointers of what I might be doing wrong here would be great! >> >> Kind Regards, >> >> Sam >> >> [Intended window background] http://imgur.com/88W7x >> [Actual drawable dump of the window background] http://imgur.com/K44ed >> [Pastebin of the code, to where you should replace >> /gtk/window-decorator/gtk-window-decorator.c in the compiz/core >> section should you choose to test it] http://pastebin.ca/1797929 >> >> -- >> Sam Spilsbury >> > > > > -- > Sam Spilsbury > -- Sam Spilsbury _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
