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02b69e4d76
GCC has some optimization for the inclusion guard, but they only work if the check is the outermost one. We're fairly inconsistent because of historical reasons, so we should ensure that we follow the same pattern in every public header.
197 lines
9.6 KiB
C
197 lines
9.6 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, see <http://www.gnu.org/licenses/>.
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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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#if !defined(__CLUTTER_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
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#error "Only <clutter/clutter.h> can be included directly."
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#endif
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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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* ClutterContainer:
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*
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* #ClutterContainer is an opaque structure whose members cannot be directly
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* accessed
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*
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* Since: 0.4
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*/
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/**
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* ClutterContainerIface:
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* @add: virtual function for adding an actor to the container. This virtual
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* function is deprecated, and it should not be overridden.
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* @remove: virtual function for removing an actor from the container. This
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* virtual function is deprecated, and it should not be overridden.
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* @foreach: virtual function for iterating over the container's children.
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* This virtual function is deprecated, and it should not be overridden.
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* @foreach_with_internals: virtual functions for iterating over the
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* container's children, both added using the #ClutterContainer API
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* and internal children. The implementation of this virtual function
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* is required only if the #ClutterContainer implementation has
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* internal children. This virtual function is deprecated, and it should
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* not be overridden.
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* @raise: virtual function for raising a child. This virtual function is
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* deprecated and it should not be overridden.
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* @lower: virtual function for lowering a child. This virtual function is
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* deprecated and it should not be overridden.
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* @sort_depth_order: virtual function for sorting the children of a
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* container depending on their depth. This virtual function is deprecated
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* and it should not be overridden.
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* @child_meta_type: The GType used for storing auxiliary information about
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* each of the containers children.
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* @create_child_meta: virtual function that gets called for each added
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* child, the function should instantiate an object of type
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* #ClutterContainerIface::child_meta_type, set the container and actor
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* fields in the instance and add the record to a data structure for
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* subsequent access for #ClutterContainerIface::get_child_meta
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* @destroy_child_meta: virtual function that gets called when a child is
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* removed; it shuld release all resources held by the record
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* @get_child_meta: return the record for a container child
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* @actor_added: class handler for #ClutterContainer::actor-added
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* @actor_removed: class handler for #ClutterContainer::actor-removed
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* @child_notify: class handler for #ClutterContainer::child-notify
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*
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* Base interface for container actors. The @add, @remove and @foreach
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* virtual functions must be provided by any implementation; the other
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* virtual functions are optional.
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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 (* foreach_with_internals) (ClutterContainer *container,
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ClutterCallback callback,
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gpointer user_data);
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/* child stacking */
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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 *child,
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GParamSpec *pspec);
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};
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CLUTTER_AVAILABLE_IN_ALL
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GType clutter_container_get_type (void) G_GNUC_CONST;
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CLUTTER_AVAILABLE_IN_ALL
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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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CLUTTER_AVAILABLE_IN_ALL
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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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CLUTTER_AVAILABLE_IN_ALL
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GParamSpec ** clutter_container_class_list_child_properties (GObjectClass *klass,
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guint *n_properties);
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CLUTTER_AVAILABLE_IN_ALL
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void clutter_container_create_child_meta (ClutterContainer *container,
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ClutterActor *actor);
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CLUTTER_AVAILABLE_IN_ALL
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void clutter_container_destroy_child_meta (ClutterContainer *container,
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ClutterActor *actor);
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CLUTTER_AVAILABLE_IN_ALL
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ClutterChildMeta * clutter_container_get_child_meta (ClutterContainer *container,
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ClutterActor *actor);
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CLUTTER_AVAILABLE_IN_ALL
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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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CLUTTER_AVAILABLE_IN_ALL
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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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CLUTTER_AVAILABLE_IN_ALL
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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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CLUTTER_AVAILABLE_IN_ALL
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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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CLUTTER_AVAILABLE_IN_ALL
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void clutter_container_child_notify (ClutterContainer *container,
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ClutterActor *child,
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GParamSpec *pspec);
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G_END_DECLS
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#endif /* __CLUTTER_CONTAINER_H__ */
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