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Finding a child by its ID is a method that should be used by every container and not only by ClutterGroup. This is needed to actually fix the picking in ClutterStage.
111 lines
5.1 KiB
C
111 lines
5.1 KiB
C
/*
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* Clutter.
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*
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* An OpenGL based 'interactive canvas' library.
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*
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* Authored By Matthew Allum <mallum@openedhand.com>
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*
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* Copyright (C) 2006 OpenedHand
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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* ClutterContainer: Generic actor container interface.
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* Author: Emmanuele Bassi <ebassi@openedhand.com>
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*/
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#ifndef __CLUTTER_CONTAINER_H__
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#define __CLUTTER_CONTAINER_H__
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#include <clutter/clutter-actor.h>
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G_BEGIN_DECLS
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#define CLUTTER_TYPE_CONTAINER (clutter_container_get_type ())
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#define CLUTTER_CONTAINER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_CONTAINER, ClutterContainer))
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#define CLUTTER_IS_CONTAINER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CLUTTER_TYPE_CONTAINER))
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#define CLUTTER_CONTAINER_GET_IFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), CLUTTER_TYPE_CONTAINER, ClutterContainerIface))
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typedef struct _ClutterContainer ClutterContainer; /* dummy */
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typedef struct _ClutterContainerIface ClutterContainerIface;
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/**
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* ClutterContainerIface:
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* @add: virtual function for adding an actor to the container
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* @remove: virtual function for removing an actor from the container
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* @foreach: virtual function for iterating over the container's children
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* @find_child_by_id: virtual function for searching a container children
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* using its unique id. Should recurse through its children. This function
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* is used when "picking" actors (e.g. by clutter_stage_get_actor_at_pos())
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* @actor_added: signal class handler for ClutterContainer::actor_added
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* @actor_removed: signal class handler for ClutterContainer::actor_removed
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*
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* Base interface for container actors.
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*
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* Since: 0.4
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*/
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struct _ClutterContainerIface
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{
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/*< private >*/
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GTypeInterface g_iface;
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/*< public >*/
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void (* add) (ClutterContainer *container,
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ClutterActor *actor);
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void (* remove) (ClutterContainer *container,
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ClutterActor *actor);
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void (* foreach) (ClutterContainer *container,
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ClutterCallback callback,
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gpointer user_data);
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ClutterActor *(* find_child_by_id) (ClutterContainer *container,
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guint child_id);
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/* signals */
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void (* actor_added) (ClutterContainer *container,
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ClutterActor *actor);
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void (* actor_removed) (ClutterContainer *container,
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ClutterActor *actor);
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};
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GType clutter_container_get_type (void) G_GNUC_CONST;
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void clutter_container_add (ClutterContainer *container,
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ClutterActor *first_actor,
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...) G_GNUC_NULL_TERMINATED;
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void clutter_container_add_actor (ClutterContainer *container,
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ClutterActor *actor);
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void clutter_container_add_valist (ClutterContainer *container,
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ClutterActor *first_actor,
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va_list var_args);
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void clutter_container_remove (ClutterContainer *container,
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ClutterActor *first_actor,
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...) G_GNUC_NULL_TERMINATED;
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void clutter_container_remove_actor (ClutterContainer *container,
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ClutterActor *actor);
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void clutter_container_remove_valist (ClutterContainer *container,
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ClutterActor *first_actor,
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va_list var_args);
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GList * clutter_container_get_children (ClutterContainer *container);
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void clutter_container_foreach (ClutterContainer *container,
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ClutterCallback callback,
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gpointer user_data);
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ClutterActor *clutter_container_find_child_by_id (ClutterContainer *container,
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guint child_id);
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G_END_DECLS
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#endif /* __CLUTTER_CONTAINER_H__ */
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