>From the assertions it *looks* like glade_xml_get_widget() is
returning NULL for "mainvbox".
Cheers,
-Tristan
On Thu, Dec 24, 2009 at 11:29 AM, Andrew Wood <ajw...@theiet.org> wrote:
> The following function is called to display a vbox, which is read from a
> glade file, in a scrollview.
>
> If the vbox or 'page' hasnt been displayed before then
> generalpageinitialised will be false.
>
> There are other 'pages' in the app which are vboxes read from a glade file
> in the same way. The app always shows the vbox called rightpanevbox and it
> swaps this variable to point to the appropriate one read from glade.
>
> The first time the function is called the page shows perfectly. The second
> time I get errors such as:
>
> Showing General Page
> doing gtk_container_remove
>
> (a.out:21153): Gtk-CRITICAL **: gtk_container_remove: assertion
> `GTK_IS_WIDGET (widget)' failed
> done gtk_container_remove
>
>
> (a.out:21153): GLib-GObject-WARNING **: invalid unclassed pointer in cast to
> `GtkWidget'
>
> (a.out:21153): Gtk-CRITICAL **: gtk_scrolled_window_add_with_viewport:
> assertion `GTK_IS_WIDGET (child)' failed
>
>
> (a.out:21153): GLib-GObject-WARNING **: invalid unclassed pointer in cast to
> `GtkWidget'
>
> (a.out:21153): Gtk-CRITICAL **: gtk_widget_show_all: assertion
> `GTK_IS_WIDGET (widget)' failed
>
>
> I cant understand why its happy the first time its called but not on
> subsequent calls. If anyone can enlighten me Id be very grateful
>
> Thanks
>
>
> void showGeneralPage()
> {
> g_print("Showing General Page\n");
> if (generalpageinitialised==false)
> {
> generalpage= glade_xml_get_widget(generalpagexml,"mainvbox");
> glade_xml_signal_autoconnect(generalpagexml);
> generalpageinitialised=true;
> }
> if (pagedisplayed!="INIT")
> {
> //a previous page is shown so we need to remove it first
> g_print("doing gtk_container_remove\n");
> gtk_container_remove (GTK_CONTAINER
> (rightpanescrollview),gtk_bin_get_child(GTK_BIN(rightpanescrollview)));
> g_print("done gtk_container_remove\n");
> }
> rightpanevbox=generalpage; //make generalpage the one currently on show
> pagedisplayed = "General";
>
>
> gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(rightpanescrollview),GTK_WIDGET(rightpanevbox));
> gtk_widget_show_all(GTK_WIDGET(rightpanevbox));
> }
> _______________________________________________
> gtk-app-devel-list mailing list
> gtk-app-devel-list@gnome.org
> http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
>
_______________________________________________
gtk-app-devel-list mailing list
gtk-app-devel-list@gnome.org
http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
