Re: Gtk::Menu with libglademm

[Andreas Volz <lists brachttal net>]

Am Sun, 7 Mar 2010 13:39:48 +0200 schrieb Michael:

Hello Michael,

Yes, this works. Thanks for your help! :-)

regards
	Andreas

> Well, I think I found the problem.
> On line 30 of main.cpp you've got:
>     mXMLGlade = createGlade ("Application");
> On line 30 of searchFile.cpp, you've got:
>   return Gtk::Builder::create_from_file (searchGladeFile (GLADE_FILE),
> object_id);
> 
> And if you read here:
> http://library.gnome.org/devel/gtkmm/stable/classGtk_1_1Builder.html#ae851b019aeb1b8c0891be99ece184146
> You will find out, that when you pass object_id to create_from_file,
> then only that object_id will be created.
> But your menu is not a child of the object that you pass
> (Application). It's a toplevel.
> I think, you should omit object_id, to get the whole file contents
> parsed. Try:
>   return Gtk::Builder::create_from_file (searchGladeFile
> (GLADE_FILE));
> 
> Here are some useful docs on Gtk::Builder:
> http://library.gnome.org/devel/gtkmm-tutorial/unstable/sec-builder-loading-glade-file.html.en
> http://library.gnome.org/devel/gtkmm/stable/classGtk_1_1Builder.htm
> 
> I hope it solves the problem.
> 
> Good Luck.
> 
> On 7 March 2010 11:06, Andreas Volz <lists brachttal net> wrote:
> > Am Sun, 7 Mar 2010 01:44:51 +0200 schrieb Michael:
> >
> >> Hello,
> >> > I rewrote my code to use Gtk::Builder::create_from_file() logic,
> >> > but as result I get:
> >> >
> >> > BuilderError: Invalid root element: 'glade-interface'
> >> This is probably, because your files is actually in glade format,
> >> rather than Builder.
> >
> > I used another system with Glade 3.6.3 installed...
> >
> >> > My glade file starts like this:
> >> >
> >> > <?xml version="1.0" encoding="UTF-8" standalone="no"?>
> >> > <!DOCTYPE glade-interface SYSTEM "glade-2.0.dtd">
> >> And this doctype shows it quite clearly.
> >>
> >> > Any ideas about that problem?
> >>
> >> Actually, you should try to load your file back in glade and save
> >> it as GtkBuilder. Just select
> >> Save As... and in the dialog box, in the bottom left corner you
> >> will notice 2 radoibuttons.
> >> One says GtkBuilder, and the other Libglade. You need GtkBuilder.
> >> Overwrite your file,
> >
> > ...and just converted my Glade to a GtkBuilder file.
> >
> >> and try running your program again. If it doesn't work, then
> >> there's something rather obscure there.
> >
> > I think it's really obscure. See the gdb backtrace I get:
> >
> > Starting
> > program: /mnt/raid/home/andreas/src/svn/state/trunk/src/state
> > [Thread debugging using libthread_db enabled] [New Thread
> > 0xb6dd4720 (LWP 10040)]
> >
> > (state:10040): gtkmm-CRITICAL **: gtkmm: object `umlEditMenu' not
> > found in GtkBuilder file.
> >
> > Program received signal SIGSEGV, Segmentation fault.
> > [Switching to Thread 0xb6dd4720 (LWP 10040)]
> > 0xb7ded505 in Gtk::Builder::get_widget_checked ()
> > from /usr/lib/libgtkmm-2.4.so.1 (gdb) bt
> > #0  0xb7ded505 in Gtk::Builder::get_widget_checked ()
> > from /usr/lib/libgtkmm-2.4.so.1 #1  0x08051a2a in
> > Gtk::Builder::get_widget<Gtk::Menu> (this=0x9c84550,
> > name= 0xbf99d12c, widget= 0x9c844e0)
> > at /usr/include/gtkmm-2.4/gtkmm/builder.h:474 #2  0x0804fed0 in
> > UMLDrawer::getGladeWidgets (this=0x9c844b8) at UMLDrawer.cpp:40 #3
> >  0x08050766 in UMLDrawer (this=0x9c844b8, cobject=0x9c60c88,
> > refGlade= 0xbf99d1a4) at UMLDrawer.cpp:28 #4  0x08052d02 in
> > Gtk::Builder::get_widget_derived<UMLDrawer> (this=0x9c84550,
> > name= 0xbf99d1ec, widget= 0x9db1920)
> > at /usr/include/gtkmm-2.4/gtkmm/builder.h:532 #5  0x08051dbe in
> > Application::getGladeWidgets (this=0x9db1908) at Application.cpp:42
> > #6  0x08052496 in Application (this=0x9db1908, cobject=0x9c93038,
> > refGlade= 0xbf99d274) at Application.cpp:24 #7  0x0804f0ac in
> > Gtk::Builder::get_widget_derived<Application> (this=0x9c84550,
> > name= 0xbf99d2cc, widget= 0xbf99d2d0)
> > at /usr/include/gtkmm-2.4/gtkmm/builder.h:532 #8  0x0804ed6b in
> > create_gtk_window (argc=1, argv=0xbf99d3b4) at main.cpp:44 #9
> >  0x0804ee47 in main (argc=Cannot access memory at address 0x0
> >
> > I uploaded the relevant files here:
> >
> > http://tux-style.com/tmp/UMLDrawer.cpp
> > http://tux-style.com/tmp/UMLDrawer.h
> > http://tux-style.com/tmp/main.cpp
> > http://tux-style.com/tmp/state.glade
> > http://tux-style.com/tmp/searchFile.cpp (yes, I'm sure the correct
> > glade is loaded!)
> >
> > Please don't blame me for the code! It's a prototype software. :-)
> >
> > But maybe someone is able to see the root of the problem...
> >
> >> If it doesn't work, then I'd try (just in case) to change the name
> >> of the element (both in the file and
> >> in the code of the program, in the string you pass to
> >> Whatever->get_widget("ElementName", mUmlEditMenu).)
> >
> > I also tried this without success.
> >
> > libgtkmm-2.4-1c2a / 1:2.16.0-1
> > libgtk2.0-0 / 2.16.1-0ubuntu2
> >
> > I'm short before constructing the Gtk::Menu by hand and not using
> > Glade. But maybe it's because my Ubuntu installation is a little
> > old. Would anyone try my sources if I upload a tarball?
> >
> > regards
> >        Andreas
> > _______________________________________________
> > gtkmm-list mailing list
> > gtkmm-list gnome org
> > http://mail.gnome.org/mailman/listinfo/gtkmm-list
> >
>