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a0747e8c2d
Bug 882 - Allow child properties for containers implementing the ClutterContainer interface (Øyvind Kolås) * clutter/clutter-child-meta.[ch]: Base class for the metadata of a ClutterActor inside a ClutterContainer; the ChildMeta object implements a wrapper for storing data that is attached to a ClutterActor only when it's part of a ClutterContainer. The ChildMeta object is used to store the child properties accessible through the ClutterContainer API. * clutter/clutter-container.[ch]: Creates the ChildMeta for each actor, in case the Container specifies the ChildMeta type to use. * clutter/Makefile.am: Add clutter-child-meta.[ch] to the build. * clutter/clutter-marshal.list: Add the marshaller for the ClutterContainer::child-notify signal. * clutter/clutter-types.h: Declare ClutterContainer and ClutterChildMeta to avoid recursive inclusion.
175 lines
9.0 KiB
C
175 lines
9.0 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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#include <clutter/clutter-child-meta.h>
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#include <clutter/clutter-types.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 _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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* @raise: virtual function for raising a child
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* @lower: virtual function for lowering a child
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* @sort_depth_order: virtual function for sorting the children of a
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* container depending on their depth
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* @child_record_type: The GType used for storing auxiliary information about
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* each of the containers children.
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* @create_child_record: virtual function that gets called for each added
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* child, the function should instantiate @child_record_type, set the container
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* and actor fields in the instance and add the record to a data structure for
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* subsequent access for get_child_record.
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* @destroy_child_record: virtual function that gets called when a child is removed
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* it shuld release all resources held by the record.
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* @get_child_record: return the record for a container child.
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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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void (* raise) (ClutterContainer *container,
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ClutterActor *actor,
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ClutterActor *sibling);
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void (* lower) (ClutterContainer *container,
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ClutterActor *actor,
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ClutterActor *sibling);
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void (* sort_depth_order) (ClutterContainer *container);
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/* ClutterChildMeta management */
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GType child_meta_type;
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void (* create_child_meta) (ClutterContainer *container,
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ClutterActor *actor);
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void (* destroy_child_meta) (ClutterContainer *container,
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ClutterActor *actor);
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ClutterChildMeta *(* get_child_meta) (ClutterContainer *container,
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ClutterActor *actor);
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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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void (* child_notify) (ClutterContainer *container,
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ClutterActor *actor,
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GParamSpec *pspec);
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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_name (ClutterContainer *container,
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const gchar *child_name);
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void clutter_container_raise_child (ClutterContainer *container,
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ClutterActor *actor,
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ClutterActor *sibling);
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void clutter_container_lower_child (ClutterContainer *container,
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ClutterActor *actor,
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ClutterActor *sibling);
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void clutter_container_sort_depth_order (ClutterContainer *container);
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GParamSpec * clutter_container_class_find_child_property (GObjectClass *klass,
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const gchar *property_name);
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GParamSpec ** clutter_container_class_list_child_properties (GObjectClass *klass,
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guint *n_properties);
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ClutterChildMeta *clutter_container_get_child_meta (ClutterContainer *container,
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ClutterActor *actor);
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void clutter_container_child_set_property (ClutterContainer *container,
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ClutterActor *child,
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const gchar * property,
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const GValue *value);
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void clutter_container_child_get_property (ClutterContainer *container,
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ClutterActor *child,
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const gchar *property,
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GValue *value);
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void clutter_container_child_set (ClutterContainer *container,
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ClutterActor *actor,
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const gchar *first_prop,
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...) G_GNUC_NULL_TERMINATED;
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void clutter_container_child_get (ClutterContainer *container,
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ClutterActor *actor,
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const gchar *first_prop,
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...) G_GNUC_NULL_TERMINATED;
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G_END_DECLS
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#endif /* __CLUTTER_CONTAINER_H__ */
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