mutter/clutter/clutter-container.h

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/*
* Clutter.
*
* An OpenGL based 'interactive canvas' library.
*
* Authored By Matthew Allum <mallum@openedhand.com>
*
* Copyright (C) 2006 OpenedHand
*
* 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 License, 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/>.
*
* ClutterContainer: Generic actor container interface.
* Author: Emmanuele Bassi <ebassi@openedhand.com>
*/
#if !defined(__CLUTTER_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
#error "Only <clutter/clutter.h> can be included directly."
#endif
#ifndef __CLUTTER_CONTAINER_H__
#define __CLUTTER_CONTAINER_H__
#include <clutter/clutter-actor.h>
#include <clutter/clutter-child-meta.h>
#include <clutter/clutter-types.h>
G_BEGIN_DECLS
#define CLUTTER_TYPE_CONTAINER (clutter_container_get_type ())
#define CLUTTER_CONTAINER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_CONTAINER, ClutterContainer))
#define CLUTTER_IS_CONTAINER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CLUTTER_TYPE_CONTAINER))
#define CLUTTER_CONTAINER_GET_IFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), CLUTTER_TYPE_CONTAINER, ClutterContainerIface))
typedef struct _ClutterContainerIface ClutterContainerIface;
/**
* ClutterContainer:
*
* #ClutterContainer is an opaque structure whose members cannot be directly
* accessed
*
* Since: 0.4
*/
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/**
* ClutterContainerIface:
* @add: virtual function for adding an actor to the container. The
* implementation of this virtual function is required.
* @remove: virtual function for removing an actor from the container. The
* implementation of this virtual function is required.
* @foreach: virtual function for iterating over the container's children.
* The implementation of this virtual function is required.
* @foreach_with_internals: virtual functions for iterating over the
* container's children, both added using the #ClutterContainer API
* and internal children. The implementation of this virtual function
* is required only if the #ClutterContainer implementation has
* internal children.
* @raise: virtual function for raising a child
* @lower: virtual function for lowering a child
* @sort_depth_order: virtual function for sorting the children of a
* container depending on their depth
* @child_meta_type: The GType used for storing auxiliary information about
* each of the containers children.
* @create_child_meta: virtual function that gets called for each added
* child, the function should instantiate an object of type
* #ClutterContainerIface::child_meta_type, set the container and actor
* fields in the instance and add the record to a data structure for
* subsequent access for #ClutterContainerIface::get_child_meta
* @destroy_child_meta: virtual function that gets called when a child is
* removed; it shuld release all resources held by the record
* @get_child_meta: return the record for a container child
* @actor_added: class handler for #ClutterContainer::actor_added
* @actor_removed: class handler for #ClutterContainer::actor_removed
* @child_notify: class handler for #ClutterContainer::child-notify
*
* Base interface for container actors. The @add, @remove and @foreach
* virtual functions must be provided by any implementation; the other
* virtual functions are optional.
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*
* Since: 0.4
*/
struct _ClutterContainerIface
{
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/*< private >*/
GTypeInterface g_iface;
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/*< public >*/
void (* add) (ClutterContainer *container,
ClutterActor *actor);
void (* remove) (ClutterContainer *container,
ClutterActor *actor);
void (* foreach) (ClutterContainer *container,
ClutterCallback callback,
gpointer user_data);
void (* foreach_with_internals) (ClutterContainer *container,
ClutterCallback callback,
gpointer user_data);
/* child stacking */
void (* raise) (ClutterContainer *container,
ClutterActor *actor,
ClutterActor *sibling);
void (* lower) (ClutterContainer *container,
ClutterActor *actor,
ClutterActor *sibling);
void (* sort_depth_order) (ClutterContainer *container);
/* ClutterChildMeta management */
GType child_meta_type;
void (* create_child_meta) (ClutterContainer *container,
ClutterActor *actor);
void (* destroy_child_meta) (ClutterContainer *container,
ClutterActor *actor);
ClutterChildMeta *(* get_child_meta) (ClutterContainer *container,
ClutterActor *actor);
/* signals */
void (* actor_added) (ClutterContainer *container,
ClutterActor *actor);
void (* actor_removed) (ClutterContainer *container,
ClutterActor *actor);
void (* child_notify) (ClutterContainer *container,
ClutterActor *actor,
GParamSpec *pspec);
};
GType clutter_container_get_type (void) G_GNUC_CONST;
void clutter_container_add (ClutterContainer *container,
ClutterActor *first_actor,
...) G_GNUC_NULL_TERMINATED;
void clutter_container_add_actor (ClutterContainer *container,
ClutterActor *actor);
void clutter_container_add_valist (ClutterContainer *container,
ClutterActor *first_actor,
va_list var_args);
void clutter_container_remove (ClutterContainer *container,
ClutterActor *first_actor,
...) G_GNUC_NULL_TERMINATED;
void clutter_container_remove_actor (ClutterContainer *container,
ClutterActor *actor);
void clutter_container_remove_valist (ClutterContainer *container,
ClutterActor *first_actor,
va_list var_args);
GList * clutter_container_get_children (ClutterContainer *container);
void clutter_container_foreach (ClutterContainer *container,
ClutterCallback callback,
gpointer user_data);
void clutter_container_foreach_with_internals (ClutterContainer *container,
ClutterCallback callback,
gpointer user_data);
ClutterActor *clutter_container_find_child_by_name (ClutterContainer *container,
const gchar *child_name);
void clutter_container_raise_child (ClutterContainer *container,
ClutterActor *actor,
ClutterActor *sibling);
void clutter_container_lower_child (ClutterContainer *container,
ClutterActor *actor,
ClutterActor *sibling);
void clutter_container_sort_depth_order (ClutterContainer *container);
GParamSpec * clutter_container_class_find_child_property (GObjectClass *klass,
const gchar *property_name);
GParamSpec ** clutter_container_class_list_child_properties (GObjectClass *klass,
guint *n_properties);
void clutter_container_create_child_meta (ClutterContainer *container,
ClutterActor *actor);
void clutter_container_destroy_child_meta (ClutterContainer *container,
ClutterActor *actor);
ClutterChildMeta *clutter_container_get_child_meta (ClutterContainer *container,
ClutterActor *actor);
void clutter_container_child_set_property (ClutterContainer *container,
ClutterActor *child,
const gchar * property,
const GValue *value);
void clutter_container_child_get_property (ClutterContainer *container,
ClutterActor *child,
const gchar *property,
GValue *value);
void clutter_container_child_set (ClutterContainer *container,
ClutterActor *actor,
const gchar *first_prop,
...) G_GNUC_NULL_TERMINATED;
void clutter_container_child_get (ClutterContainer *container,
ClutterActor *actor,
const gchar *first_prop,
...) G_GNUC_NULL_TERMINATED;
G_END_DECLS
#endif /* __CLUTTER_CONTAINER_H__ */