/* * Clutter. * * An OpenGL based 'interactive canvas' library. * * Authored By Matthew Allum * * 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 . * * ClutterContainer: Generic actor container interface. * Author: Emmanuele Bassi */ #if !defined(__CLUTTER_H_INSIDE__) && !defined(CLUTTER_COMPILATION) #error "Only can be included directly." #endif #ifndef __CLUTTER_CONTAINER_H__ #define __CLUTTER_CONTAINER_H__ #include #include #include 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 */ /** * 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. * * Since: 0.4 */ struct _ClutterContainerIface { /*< private >*/ 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 (* 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 *child, 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; void clutter_container_child_notify (ClutterContainer *container, ClutterActor *child, GParamSpec *pspec); G_END_DECLS #endif /* __CLUTTER_CONTAINER_H__ */