gtk2/gtk/gtkmodelmenuitem.h
Ryan Lortie 5617b58420 Introduce GtkMenuTracker
GtkMenuTracker folds a nested structure of sections in a GMenuModel into
a single linear menu, which it expresses to its user by means of 'insert
item at position' and 'remove item at position' callbacks.

The logic for where to insert separators and how to handle action
namespaces is contained within the tracker, removing the need to have
this logic duplicated in the 3 or 4 places that consume GMenuModel.

In comparison with the previous code, the tracker no longer completely
destroys and rebuilds menus every time a single change occurs.  As a
result, the new gtkmenu testcase now runs in approximately 3 seconds
instead of ~60 before.

https://bugzilla.gnome.org/show_bug.cgi?id=696468
2013-04-01 16:45:19 -04:00

42 lines
1.9 KiB
C

/*
* Copyright © 2011 Canonical Limited
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the licence, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Author: Ryan Lortie <desrt@desrt.ca>
*/
#ifndef __GTK_MODEL_MENU_ITEM_H__
#define __GTK_MODEL_MENU_ITEM_H__
#include <gtk/gtkcheckmenuitem.h>
#define GTK_TYPE_MODEL_MENU_ITEM (gtk_model_menu_item_get_type ())
#define GTK_MODEL_MENU_ITEM(inst) (G_TYPE_CHECK_INSTANCE_CAST ((inst), \
GTK_TYPE_MODEL_MENU_ITEM, GtkModelMenuItem))
#define GTK_IS_MODEL_MENU_ITEM(inst) (G_TYPE_CHECK_INSTANCE_TYPE ((inst), \
GTK_TYPE_MODEL_MENU_ITEM))
typedef struct _GtkModelMenuItem GtkModelMenuItem;
G_GNUC_INTERNAL
GType gtk_model_menu_item_get_type (void) G_GNUC_CONST;
G_GNUC_INTERNAL
GtkWidget * gtk_model_menu_item_new (GMenuModel *model,
gint item_index,
const gchar *action_namespace);
#endif /* __GTK_MODEL_MENU_ITEM_H__ */