Re: GtkNotebook

["Padraig O'Briain" <Padraig Obriain Sun COM>]

Thanks for the feedback on this.

Should I raise a bug in bugzilla so we do not forget about it?

Padraig

> Delivered-To: gtk-devel-list gnome org
> To: Tim Janik <timj gtk org>
> Cc: James Henstridge <james daa com au>, "Padraig O'Briain" 
<Padraig Obriain Sun COM>, Gtk+ Developers <gtk-devel-list gnome org>
> Subject: Re: GtkNotebook
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> 
> Tim Janik <timj gtk org> writes:
> 
> > On 5 Aug 2001, Owen Taylor wrote:
> > 
> > > James Henstridge <james daa com au> writes:
> > > 
> > > > On Fri, 3 Aug 2001, Padraig O'Briain wrote:
> > > > 
> > > > > Are there signals I can listen to which will tell me when a page is 
inserted or
> > > > > removed from a GtkNotebook?
> > > > 
> > > > Just a guess, but the "add" and "remove" signals (from GtkContainer)
> > > > probably do what you want.
> > > 
> > > They don't actually work, because all addition and removal doesn't go
> > > through them.
> > > 
> > > There is currently no reliable way of getting notification on the list
> > > of children for a container. [*]
> > > 
> > > I wonder if we should add something along the lines g_object_notify
> > > (container, "children') to gtk_widget_set_parent() /
> > > gtk_widget_unparent().
> > 
> > we need to have a ::children property on containers then,
> > and what type should that have? (since we haven't wrapped
> > GList in the type system, we could just use GValueArray which
> > is somewhat overkill).
> > a better idea might be a ::n_children property, however,
> > that would cost an int in GtkContainer and count composites as well.
> 
> I think a n_children property just so you can get notification
> on it is a bad hack. The type of ::children is indeed a problem -
> without g_array_type_new (type), anything we have is going
> to be artificial, and probably wrong in the long term.
> (G_TYPE_POINTER strikes me as being better than GValueArray.)
> 
> Maybe the best solution is simply ::child_added ::child_removed
> signals and not properties at all.
> 
> Regards,
>                                         Owen
> 
> (A bug needs to be filed about this, since it is pretty darn late for
> 2.0 at this point. It could be added in 2.2 without breaking bin
> compat as long as we didn't have default handlers for these signals.)
> 
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