[Gimp-developer] making tool re-arrangements cancellable in the preferences dialog

[Stephen Griffiths]

I am looking for some advice on how to make tool re-arrangements
cancelable in the preferences dialog. 
(for http://bugzilla.gnome.org/show_bug.cgi?id=500930)

the current code that resets the preferences looks like this (in
prefs-dialog):

if (gimp_dialog_run (GIMP_DIALOG (confirm)) == GTK_RESPONSE_OK)
  {
    GimpConfig *config_copy;

    config_copy = g_object_get_data (G_OBJECT (dialog), "config-copy");

    gimp_config_reset (config_copy);
  }

Can anyone point me to an example of how to attach(?) a GimpContainer
(or something similar) to gimpconfig in order to reset order/visibility?

regards,
Stephen Griffiths.