| Top |
| ClutterActor * | actor | Read / Write / Construct Only |
| ClutterContainer * | container | Read / Write / Construct Only |
ClutterChildMeta is a wrapper object created by ClutterContainer implementations in order to store child-specific data and properties.
A ClutterChildMeta wraps a ClutterActor inside a ClutterContainer.
ClutterChildMeta is available since Clutter 0.8
ClutterContainer *
clutter_child_meta_get_container (ClutterChildMeta *data);
Retrieves the container using data
Since 0.8
ClutterActor *
clutter_child_meta_get_actor (ClutterChildMeta *data);
Retrieves the actor wrapped by data
Since 0.8
typedef struct {
ClutterContainer *container;
ClutterActor *actor;
} ClutterChildMeta;
Base interface for container specific state for child actors. A child data is meant to be used when you need to keep track of information about each individual child added to a container.
In order to use it you should create your own subclass of ClutterChildMeta and set the ClutterContainerIface child_meta_type interface member to your subclass type, like:
1 2 3 4 5 6 7 |
static void my_container_iface_init (ClutterContainerIface *iface) { /* set the rest of the #ClutterContainer vtable */ container_iface->child_meta_type = MY_TYPE_CHILD_META; } |
This will automatically create a ClutterChildMeta of type MY_TYPE_CHILD_META for every actor that is added to the container.
The child data for an actor can be retrieved using the
clutter_container_get_child_meta() function.
The properties of the data and your subclass can be manipulated with
clutter_container_child_set() and clutter_container_child_get() which
act like g_object_set() and g_object_get().
You can provide hooks for your own storage as well as control the
instantiation by overriding the ClutterContainerIface virtual functions
create_child_meta,
destroy_child_meta,
and get_child_meta.
ClutterContainer * |
the container handling this data |
|
ClutterActor * |
the actor wrapped by this data |
Since 0.8
struct ClutterChildMetaClass {
};
The ClutterChildMetaClass contains only private data
Since 0.8
“actor” property“actor” ClutterActor *
The ClutterActor being wrapped by this ClutterChildMeta
Flags: Read / Write / Construct Only
Since 0.8
“container” property“container” ClutterContainer *
The ClutterContainer that created this ClutterChildMeta.
Flags: Read / Write / Construct Only
Since 0.8