Il giorno Wed, 9 Jun 2010 14:54:07 +0200
Tadej Borovšak <tadeb...@gmail.com> ha scritto:
> Hello.
>
> > Thank you, I'm sorry for that I didn't explain the problem clearer. What I
> > meant is that there is no similar function of
> > 'glade_get_widget_tree(widget)'. At the context where should call
> > gtk_builder_get_object(), there is no 'GtkBuilder* builder' available. In
> > the previous code, we can call 'glade_get_widget_tree(widget)' to get the
> > GladeXml object of the given 'widget'. However, I don't know how to do it in
> > GtkBuilder?
> >
> > If I can get the GtkBuilder object from 'assistant', then I can call
> > gtk_builder_get_object() to get the widget by its id. If I cannot get it,
> > then how to get the widget by id from the top level widget? Thanks.
>
> I'm afraid that there is no equivalent for that in GtkBuilder (objects
> that are constructed by builder don't carry any information about who
> constructed them). You'll need to pass your builder object around
> manually (g_object_set_data() would be one option, global variable
> second, struct that is passed to all of the functions would be third,
> ...).
I'd like to suggest another alternative, that is programmatically
traverse the widget tree. The following untested snippet just to
give the idea:
GtkWidget *
gtk_widget_lookup(GtkWidget *top_level, const gchar *name)
{
GtkWidget *widget = NULL;
if (strcmp(name, gtk_widget_get_name(top_level) == 0) {
widget = top_level;
} else if (GTK_IS_CONTAINER(top_level)) {
GList *children = gtk_container_get_children(top_level);
while (children) {
if (widget == NULL)
widget = lookup_widget(children->data, name);
children = g_list_delete_link(children, children);
}
}
return widget;
}
--
Nicola
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