2008-05-14  Michael Natterer  <mitch@gimp.org>

	Made session info serialization independent from widgets so it can
	be used on stored dock layouts which are not open:

	* app/widgets/gimpsessioninfo-book.[ch]
	* app/widgets/gimpsessioninfo-dock.[ch]
	* app/widgets/gimpsessioninfo-dockable.[ch]: add from_widget()
	functions which return newly allocated session info structs.
	Changed serialize() functions to take these structs instead of
	widgets. Changed deserialize() functions to return the structs
	instead of appending them to lists in their parent structs. Don't
	free anything in restore().

	* app/widgets/gimpsessioninfo-aux.[ch]
	(gimp_session_info_aux_serialize): take a GList of aux_info
	instead of a widget.

	* app/widgets/gimpsessioninfo.[ch]: add new functions get_info()
	which collects above session info details from dialogs and
	clear_info() which clears that info. Call clear_info() from
	finalize(). Don't free anything in restore().

	* app/widgets/gimpdialogfactory.c
	(gimp_dialog_factories_save_foreach): collect the session info
	detials from the dialogs before serializing because serialize()
	doesn't know about the widget any longer. Clear the infos after
	serializing.

	(gimp_dialog_factories_restore_foreach): clear the session info
	details after creating the dialogs because restore() doesn't clear
	the info by itself any longer.


svn path=/trunk/; revision=25657