GTK+ Forums

abxccd · Familiar Face Joined: 06 Mar 2010 Posts: 39

Hi everyone,

I am currently developing a GTK app using C. My interfaces are designed using Glade and then loaded via a GTK builder.

I would like to design more "screens" using Glade, but without a main window. What I would like to do is then to attach those glade files into a vbox in the main window at run time.

Does anyone know how to do this?

Cheers :)

tadeboro · Posted: Sun Mar 14, 2010 10:10 am Post subject:

Hello.

If you're using Glade >= 3.6, you can simply right-click a widget that you wish to have as toplevel in your UI file and select "Add widget as toplevel". This way you can create parts of your GUI that are later added into proper container.

In order to place loaded parts into "master" UI, you'll have to obtain parts via gtk_builder_get_object() and then manually pack them into master using normal methods (gtk_box_pack_*(), gtk_container_add(), ...).

Tadej

abxccd · Familiar Face Joined: 06 Mar 2010 Posts: 39

Thank you for your reply tadeboro. Your introduction to using Glade was very helpful btw :)

I have tried your suggestion, but is currently facing this error:

Code: (C)
1	(myapp:2333): Gtk-CRITICAL **: gtk_box_pack: assertion `GTK_IS_WIDGET (child)' failed

Basically, what I am attempting to do is that when a button is clicked it will load an external glade file without a window as its top level, then attach it.

Previously, I have loaded the main window using gtk_builder, and showed the window. The builder is then unreferenced.

The code for my call back for the button is as follows:

Code: (C)

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

void cb_button( GtkWidget *widget, gpointer data ){
GtkBuilder *builder;

GError* error = NULL;
GtkWidget *extvbox;

builder = gtk_builder_new ();
if (!gtk_builder_add_from_file (builder, ABOUT_UI, &error)){
g_warning ("Couldn't load builder file: %s", error->message);
g_error_free (error);

}

extvbox = GTK_WIDGET (gtk_builder_get_object (builder, "myvbox")); <----CODE SEEMS TO FAIL STARTING HERE

printf ("%s", gtk_widget_get_name(aboutvbox)); <----RETURNS (null)

}

It quite strange that the builder I just loaded is unable to find the requested widget.

Do you know how to fix this?

Cheers :)

abxccd · Familiar Face Joined: 06 Mar 2010 Posts: 39

Looks like the path to my gui was the wrong one. All fixed now :)