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2008-05-28 Emmanuele Bassi <ebassi@openedhand.com>

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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.
This commit is contained in:
Emmanuele Bassi
2008-05-28 13:48:11 +00:00
parent 717d9768ed
commit a0747e8c2d
10 changed files with 1016 additions and 50 deletions
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100
clutter/clutter-container.h
View File

@ -30,6 +30,8 @@
#define __CLUTTER_CONTAINER_H__
#include <clutter/clutter-actor.h>
#include <clutter/clutter-child-meta.h>
#include <clutter/clutter-types.h>
G_BEGIN_DECLS
@ -38,7 +40,6 @@ G_BEGIN_DECLS
#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 _ClutterContainer ClutterContainer; /* dummy */
typedef struct _ClutterContainerIface ClutterContainerIface;
/**
@ -50,6 +51,15 @@ typedef struct _ClutterContainerIface ClutterContainerIface;
* @lower: virtual function for lowering a child
* @sort_depth_order: virtual function for sorting the children of a
* container depending on their depth
* @child_record_type: The GType used for storing auxiliary information about
* each of the containers children.
* @create_child_record: virtual function that gets called for each added
* child, the function should instantiate @child_record_type, set the container
* and actor fields in the instance and add the record to a data structure for
* subsequent access for get_child_record.
* @destroy_child_record: virtual function that gets called when a child is removed
* it shuld release all resources held by the record.
* @get_child_record: return the record for a container child.
* @actor_added: signal class handler for ClutterContainer::actor_added
* @actor_removed: signal class handler for ClutterContainer::actor_removed
*
@ -63,26 +73,40 @@ struct _ClutterContainerIface
GTypeInterface g_iface;
/*< public >*/
void (* add) (ClutterContainer *container,
ClutterActor *actor);
void (* remove) (ClutterContainer *container,
ClutterActor *actor);
void (* foreach) (ClutterContainer *container,
ClutterCallback callback,
gpointer user_data);
void (* raise) (ClutterContainer *container,
ClutterActor *actor,
ClutterActor *sibling);
void (* lower) (ClutterContainer *container,
ClutterActor *actor,
ClutterActor *sibling);
void (* sort_depth_order) (ClutterContainer *container);
void (* add) (ClutterContainer *container,
ClutterActor *actor);
void (* remove) (ClutterContainer *container,
ClutterActor *actor);
void (* foreach) (ClutterContainer *container,
ClutterCallback callback,
gpointer user_data);
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;
@ -107,15 +131,43 @@ GList * clutter_container_get_children (ClutterContainer *container);
void clutter_container_foreach (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);
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);
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