Re: GtkBuilder Public API - Last call

[Tim Janik <timj gtk org>]

On Wed, 13 Jun 2007, Johan Dahlin wrote:

> Christian Persch wrote:
> > Hi;
> >
> > Le mercredi 13 juin 2007 à 11:07 -0300, Johan Dahlin a écrit :
> > > Is there are reason to prefer glade_xml_signal_connect[data] to the
> > > connect_signals() api? Assuming we add a user data argument to
> > > connect_signals, see separate discussion.
> >
> > I don't think we need a separate connect_data if we add that user_data
> > argument. CONNECT_SWAPPED still needs to be handled in this case,
> > however.
>
> I can't see a use case where sending in a user_data and CONNECT_SWAPPED at
> the same time makes sense. Do you know of one?

"swapped" *only* makes sense in connection with user_data on signal
connections. e.g.:

  FILE *file = fopen ("/tmp/foo", "w");
  g_signal_connect_swapped (button, "destroy", G_CALLBACK (fclose), file);

for GObject*s, you need g_signal_connect_object to disconnect the handler
when either obejct dies (window or button):

  g_signal_connect_object (button, "clicked", G_CALLBACK (gtk_widget_destroy), window, G_CONNECT_SWAPPED);

> Johan

---
ciaoTJ