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d4ff5e2d31
This is deprecated, so replace it with ClutterActorIter or alternative funcs https://gitlab.gnome.org/GNOME/mutter/merge_requests/816
1307 lines
40 KiB
C
1307 lines
40 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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*
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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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#include "clutter-build-config.h"
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#include <stdarg.h>
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#include <glib-object.h>
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#include <gobject/gvaluecollector.h>
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#define CLUTTER_DISABLE_DEPRECATION_WARNINGS
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#include "deprecated/clutter-container.h"
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#include "clutter-actor-private.h"
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#include "clutter-child-meta.h"
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#include "clutter-debug.h"
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#include "clutter-main.h"
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#include "clutter-marshal.h"
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#include "clutter-private.h"
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#include "clutter-enum-types.h"
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#define CLUTTER_CONTAINER_WARN_NOT_IMPLEMENTED(container,vfunc) \
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G_STMT_START { \
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g_warning ("Container of type '%s' does not implement " \
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"the required ClutterContainer::%s virtual " \
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"function.", \
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G_OBJECT_TYPE_NAME ((container)), \
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(vfunc)); \
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} G_STMT_END
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#define CLUTTER_CONTAINER_NOTE_NOT_IMPLEMENTED(container,vfunc) \
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G_STMT_START { \
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CLUTTER_NOTE (ACTOR, "Container of type '%s' does not " \
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"implement the ClutterContainer::%s " \
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"virtual function.", \
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G_OBJECT_TYPE_NAME ((container)), \
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(vfunc)); \
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} G_STMT_END
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/**
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* SECTION:clutter-container
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* @short_description: An interface for container actors
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*
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* #ClutterContainer is an interface implemented by #ClutterActor, and
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* it provides some common API for notifying when a child actor is added
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* or removed, as well as the infrastructure for accessing child properties
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* through #ClutterChildMeta.
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*
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* Until Clutter 1.10, the #ClutterContainer interface was also the public
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* API for implementing container actors; this part of the interface has
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* been deprecated: #ClutterContainer has a default implementation which
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* defers to #ClutterActor the child addition and removal, as well as the
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* iteration. See the documentation of #ClutterContainerIface for the list
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* of virtual functions that should be overridden.
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*/
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enum
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{
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ACTOR_ADDED,
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ACTOR_REMOVED,
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CHILD_NOTIFY,
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LAST_SIGNAL
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};
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static guint container_signals[LAST_SIGNAL] = { 0, };
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static GQuark quark_child_meta = 0;
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static ClutterChildMeta *get_child_meta (ClutterContainer *container,
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ClutterActor *actor);
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static void create_child_meta (ClutterContainer *container,
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ClutterActor *actor);
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static void destroy_child_meta (ClutterContainer *container,
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ClutterActor *actor);
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static void child_notify (ClutterContainer *container,
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ClutterActor *child,
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GParamSpec *pspec);
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typedef ClutterContainerIface ClutterContainerInterface;
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G_DEFINE_INTERFACE (ClutterContainer, clutter_container, G_TYPE_OBJECT);
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static void
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container_real_add (ClutterContainer *container,
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ClutterActor *actor)
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{
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clutter_actor_add_child (CLUTTER_ACTOR (container), actor);
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}
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static void
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container_real_remove (ClutterContainer *container,
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ClutterActor *actor)
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{
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clutter_actor_remove_child (CLUTTER_ACTOR (container), actor);
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}
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static void
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container_real_raise (ClutterContainer *container,
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ClutterActor *child,
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ClutterActor *sibling)
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{
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ClutterActor *self = CLUTTER_ACTOR (container);
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clutter_actor_set_child_above_sibling (self, child, sibling);
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}
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static void
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container_real_lower (ClutterContainer *container,
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ClutterActor *child,
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ClutterActor *sibling)
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{
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ClutterActor *self = CLUTTER_ACTOR (container);
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clutter_actor_set_child_below_sibling (self, child, sibling);
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}
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static void
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container_real_sort_depth_order (ClutterContainer *container)
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{
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}
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static void
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clutter_container_default_init (ClutterContainerInterface *iface)
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{
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GType iface_type = G_TYPE_FROM_INTERFACE (iface);
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quark_child_meta =
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g_quark_from_static_string ("clutter-container-child-data");
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/**
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* ClutterContainer::actor-added:
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* @container: the actor which received the signal
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* @actor: the new child that has been added to @container
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*
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* The ::actor-added signal is emitted each time an actor
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* has been added to @container.
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*
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* Since: 0.4
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*/
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container_signals[ACTOR_ADDED] =
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g_signal_new (I_("actor-added"),
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iface_type,
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G_SIGNAL_RUN_FIRST,
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G_STRUCT_OFFSET (ClutterContainerIface, actor_added),
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NULL, NULL, NULL,
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G_TYPE_NONE, 1,
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CLUTTER_TYPE_ACTOR);
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/**
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* ClutterContainer::actor-removed:
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* @container: the actor which received the signal
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* @actor: the child that has been removed from @container
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*
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* The ::actor-removed signal is emitted each time an actor
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* is removed from @container.
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*
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* Since: 0.4
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*/
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container_signals[ACTOR_REMOVED] =
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g_signal_new (I_("actor-removed"),
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iface_type,
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G_SIGNAL_RUN_FIRST,
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G_STRUCT_OFFSET (ClutterContainerIface, actor_removed),
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NULL, NULL, NULL,
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G_TYPE_NONE, 1,
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CLUTTER_TYPE_ACTOR);
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/**
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* ClutterContainer::child-notify:
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* @container: the container which received the signal
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* @actor: the child that has had a property set
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* @pspec: (type GParamSpec): the #GParamSpec of the property set
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*
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* The ::child-notify signal is emitted each time a property is
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* being set through the clutter_container_child_set() and
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* clutter_container_child_set_property() calls.
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*
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* Since: 0.8
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*/
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container_signals[CHILD_NOTIFY] =
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g_signal_new (I_("child-notify"),
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iface_type,
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G_SIGNAL_RUN_FIRST | G_SIGNAL_DETAILED,
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G_STRUCT_OFFSET (ClutterContainerIface, child_notify),
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NULL, NULL,
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_clutter_marshal_VOID__OBJECT_PARAM,
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G_TYPE_NONE, 2,
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CLUTTER_TYPE_ACTOR, G_TYPE_PARAM);
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iface->add = container_real_add;
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iface->remove = container_real_remove;
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iface->raise = container_real_raise;
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iface->lower = container_real_lower;
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iface->sort_depth_order = container_real_sort_depth_order;
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iface->child_meta_type = G_TYPE_INVALID;
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iface->create_child_meta = create_child_meta;
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iface->destroy_child_meta = destroy_child_meta;
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iface->get_child_meta = get_child_meta;
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iface->child_notify = child_notify;
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}
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static inline void
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container_add_actor (ClutterContainer *container,
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ClutterActor *actor)
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{
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ClutterActor *parent;
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parent = clutter_actor_get_parent (actor);
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if (G_UNLIKELY (parent != NULL))
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{
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g_warning ("Attempting to add actor of type '%s' to a "
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"container of type '%s', but the actor has "
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"already a parent of type '%s'.",
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g_type_name (G_OBJECT_TYPE (actor)),
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g_type_name (G_OBJECT_TYPE (container)),
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g_type_name (G_OBJECT_TYPE (parent)));
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return;
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}
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clutter_container_create_child_meta (container, actor);
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#ifdef CLUTTER_ENABLE_DEBUG
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if (G_UNLIKELY (_clutter_diagnostic_enabled ()))
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{
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ClutterContainerIface *iface = CLUTTER_CONTAINER_GET_IFACE (container);
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if (iface->add != container_real_add)
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_clutter_diagnostic_message ("The ClutterContainer::add() virtual "
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"function has been deprecated and it "
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"should not be overridden by newly "
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"written code");
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}
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#endif /* CLUTTER_ENABLE_DEBUG */
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CLUTTER_CONTAINER_GET_IFACE (container)->add (container, actor);
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}
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static inline void
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container_remove_actor (ClutterContainer *container,
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ClutterActor *actor)
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{
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ClutterActor *parent;
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parent = clutter_actor_get_parent (actor);
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if (parent != CLUTTER_ACTOR (container))
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{
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g_warning ("Attempting to remove actor of type '%s' from "
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"group of class '%s', but the container is not "
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"the actor's parent.",
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g_type_name (G_OBJECT_TYPE (actor)),
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g_type_name (G_OBJECT_TYPE (container)));
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return;
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}
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clutter_container_destroy_child_meta (container, actor);
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#ifdef CLUTTER_ENABLE_DEBUG
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if (G_UNLIKELY (_clutter_diagnostic_enabled ()))
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{
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ClutterContainerIface *iface = CLUTTER_CONTAINER_GET_IFACE (container);
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if (iface->remove != container_real_remove)
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_clutter_diagnostic_message ("The ClutterContainer::remove() virtual "
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"function has been deprecated and it "
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"should not be overridden by newly "
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"written code");
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}
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#endif /* CLUTTER_ENABLE_DEBUG */
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CLUTTER_CONTAINER_GET_IFACE (container)->remove (container, actor);
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}
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static inline void
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container_add_valist (ClutterContainer *container,
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ClutterActor *first_actor,
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va_list args)
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{
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ClutterActor *actor = first_actor;
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while (actor != NULL)
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{
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container_add_actor (container, actor);
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actor = va_arg (args, ClutterActor *);
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}
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}
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static inline void
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container_remove_valist (ClutterContainer *container,
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ClutterActor *first_actor,
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va_list args)
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{
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ClutterActor *actor = first_actor;
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while (actor != NULL)
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{
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container_remove_actor (container, actor);
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actor = va_arg (args, ClutterActor *);
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}
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}
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/**
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* clutter_container_add: (skip)
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* @container: a #ClutterContainer
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* @first_actor: the first #ClutterActor to add
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* @...: %NULL terminated list of actors to add
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*
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* Adds a list of #ClutterActor<!-- -->s to @container. Each time and
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* actor is added, the "actor-added" signal is emitted. Each actor should
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* be parented to @container, which takes a reference on the actor. You
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* cannot add a #ClutterActor to more than one #ClutterContainer.
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*
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* This function will call #ClutterContainerIface.add(), which is a
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* deprecated virtual function. The default implementation will
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* call clutter_actor_add_child().
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*
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* Since: 0.4
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*
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* Deprecated: 1.10: Use clutter_actor_add_child() instead.
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*/
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void
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clutter_container_add (ClutterContainer *container,
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ClutterActor *first_actor,
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...)
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{
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va_list args;
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g_return_if_fail (CLUTTER_IS_CONTAINER (container));
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g_return_if_fail (CLUTTER_IS_ACTOR (first_actor));
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va_start (args, first_actor);
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container_add_valist (container, first_actor, args);
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va_end (args);
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}
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/**
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* clutter_container_add_actor: (virtual add)
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* @container: a #ClutterContainer
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* @actor: the first #ClutterActor to add
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*
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* Adds a #ClutterActor to @container. This function will emit the
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* "actor-added" signal. The actor should be parented to
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* @container. You cannot add a #ClutterActor to more than one
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* #ClutterContainer.
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*
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* This function will call #ClutterContainerIface.add(), which is a
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* deprecated virtual function. The default implementation will
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* call clutter_actor_add_child().
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*
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* Since: 0.4
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*
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* Deprecated: 1.10: Use clutter_actor_add_child() instead.
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*/
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void
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clutter_container_add_actor (ClutterContainer *container,
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ClutterActor *actor)
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{
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g_return_if_fail (CLUTTER_IS_CONTAINER (container));
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g_return_if_fail (CLUTTER_IS_ACTOR (actor));
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container_add_actor (container, actor);
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}
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/**
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* clutter_container_add_valist: (skip)
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* @container: a #ClutterContainer
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* @first_actor: the first #ClutterActor to add
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* @var_args: list of actors to add, followed by %NULL
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*
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* Alternative va_list version of clutter_container_add().
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*
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* This function will call #ClutterContainerIface.add(), which is a
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* deprecated virtual function. The default implementation will
|
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* call clutter_actor_add_child().
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*
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* Since: 0.4
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*
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* Deprecated: 1.10: Use clutter_actor_add_child() instead.
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*/
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void
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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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{
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g_return_if_fail (CLUTTER_IS_CONTAINER (container));
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g_return_if_fail (CLUTTER_IS_ACTOR (first_actor));
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container_add_valist (container, first_actor, var_args);
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}
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/**
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* clutter_container_remove: (skip)
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* @container: a #ClutterContainer
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* @first_actor: first #ClutterActor to remove
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* @...: a %NULL-terminated list of actors to remove
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*
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* Removes a %NULL terminated list of #ClutterActor<!-- -->s from
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* @container. Each actor should be unparented, so if you want to keep it
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* around you must hold a reference to it yourself, using g_object_ref().
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* Each time an actor is removed, the "actor-removed" signal is
|
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* emitted by @container.
|
|
*
|
|
* This function will call #ClutterContainerIface.remove(), which is a
|
|
* deprecated virtual function. The default implementation will call
|
|
* clutter_actor_remove_child().
|
|
*
|
|
* Since: 0.4
|
|
*
|
|
* Deprecated: 1.10: Use clutter_actor_remove_child() instead.
|
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*/
|
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void
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clutter_container_remove (ClutterContainer *container,
|
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ClutterActor *first_actor,
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...)
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{
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va_list var_args;
|
|
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g_return_if_fail (CLUTTER_IS_CONTAINER (container));
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g_return_if_fail (CLUTTER_IS_ACTOR (first_actor));
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va_start (var_args, first_actor);
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container_remove_valist (container, first_actor, var_args);
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va_end (var_args);
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}
|
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|
|
/**
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* clutter_container_remove_actor: (virtual remove)
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* @container: a #ClutterContainer
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* @actor: a #ClutterActor
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*
|
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* Removes @actor from @container. The actor should be unparented, so
|
|
* if you want to keep it around you must hold a reference to it
|
|
* yourself, using g_object_ref(). When the actor has been removed,
|
|
* the "actor-removed" signal is emitted by @container.
|
|
*
|
|
* This function will call #ClutterContainerIface.remove(), which is a
|
|
* deprecated virtual function. The default implementation will call
|
|
* clutter_actor_remove_child().
|
|
*
|
|
* Since: 0.4
|
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*
|
|
* Deprecated: 1.10: Use clutter_actor_remove_child() instead.
|
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*/
|
|
void
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clutter_container_remove_actor (ClutterContainer *container,
|
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ClutterActor *actor)
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{
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g_return_if_fail (CLUTTER_IS_CONTAINER (container));
|
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g_return_if_fail (CLUTTER_IS_ACTOR (actor));
|
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container_remove_actor (container, actor);
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}
|
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|
|
/**
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|
* clutter_container_remove_valist: (skip)
|
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* @container: a #ClutterContainer
|
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* @first_actor: the first #ClutterActor to add
|
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* @var_args: list of actors to remove, followed by %NULL
|
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*
|
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* Alternative va_list version of clutter_container_remove().
|
|
*
|
|
* This function will call #ClutterContainerIface.remove(), which is a
|
|
* deprecated virtual function. The default implementation will call
|
|
* clutter_actor_remove_child().
|
|
*
|
|
* Since: 0.4
|
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*
|
|
* Deprecated: 1.10: Use clutter_actor_remove_child() instead.
|
|
*/
|
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void
|
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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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{
|
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g_return_if_fail (CLUTTER_IS_CONTAINER (container));
|
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g_return_if_fail (CLUTTER_IS_ACTOR (first_actor));
|
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container_remove_valist (container, first_actor, var_args);
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}
|
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|
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/**
|
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* clutter_container_get_children:
|
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* @container: a #ClutterContainer
|
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*
|
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* Retrieves all the children of @container.
|
|
*
|
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* Return value: (element-type Clutter.Actor) (transfer container): a list
|
|
* of #ClutterActor<!-- -->s. Use g_list_free() on the returned
|
|
* list when done.
|
|
*
|
|
* Since: 0.4
|
|
*
|
|
* Deprecated: 1.10: Use clutter_actor_get_children() instead.
|
|
*/
|
|
GList *
|
|
clutter_container_get_children (ClutterContainer *container)
|
|
{
|
|
g_return_val_if_fail (CLUTTER_IS_CONTAINER (container), NULL);
|
|
|
|
return clutter_actor_get_children (CLUTTER_ACTOR (container));
|
|
}
|
|
|
|
/**
|
|
* clutter_container_raise_child: (virtual raise)
|
|
* @container: a #ClutterContainer
|
|
* @actor: the actor to raise
|
|
* @sibling: (allow-none): the sibling to raise to, or %NULL to raise
|
|
* to the top
|
|
*
|
|
* Raises @actor to @sibling level, in the depth ordering.
|
|
*
|
|
* This function calls the #ClutterContainerIface.raise() virtual function,
|
|
* which has been deprecated. The default implementation will call
|
|
* clutter_actor_set_child_above_sibling().
|
|
*
|
|
* Since: 0.6
|
|
*
|
|
* Deprecated: 1.10: Use clutter_actor_set_child_above_sibling() instead.
|
|
*/
|
|
void
|
|
clutter_container_raise_child (ClutterContainer *container,
|
|
ClutterActor *actor,
|
|
ClutterActor *sibling)
|
|
{
|
|
ClutterContainerIface *iface;
|
|
ClutterActor *self;
|
|
|
|
g_return_if_fail (CLUTTER_IS_CONTAINER (container));
|
|
g_return_if_fail (CLUTTER_IS_ACTOR (actor));
|
|
g_return_if_fail (sibling == NULL || CLUTTER_IS_ACTOR (sibling));
|
|
|
|
if (actor == sibling)
|
|
return;
|
|
|
|
self = CLUTTER_ACTOR (container);
|
|
|
|
if (clutter_actor_get_parent (actor) != self)
|
|
{
|
|
g_warning ("Actor of type '%s' is not a child of the container "
|
|
"of type '%s'",
|
|
g_type_name (G_OBJECT_TYPE (actor)),
|
|
g_type_name (G_OBJECT_TYPE (container)));
|
|
return;
|
|
}
|
|
|
|
if (sibling != NULL &&
|
|
clutter_actor_get_parent (sibling) != self)
|
|
{
|
|
g_warning ("Actor of type '%s' is not a child of the container "
|
|
"of type '%s'",
|
|
g_type_name (G_OBJECT_TYPE (sibling)),
|
|
g_type_name (G_OBJECT_TYPE (container)));
|
|
return;
|
|
}
|
|
|
|
iface = CLUTTER_CONTAINER_GET_IFACE (container);
|
|
|
|
#ifdef CLUTTER_ENABLE_DEBUG
|
|
if (G_UNLIKELY (_clutter_diagnostic_enabled ()))
|
|
{
|
|
if (iface->raise != container_real_raise)
|
|
_clutter_diagnostic_message ("The ClutterContainer::raise() "
|
|
"virtual function has been deprecated "
|
|
"and it should not be overridden by "
|
|
"newly written code");
|
|
}
|
|
#endif /* CLUTTER_ENABLE_DEBUG */
|
|
|
|
iface->raise (container, actor, sibling);
|
|
}
|
|
|
|
/**
|
|
* clutter_container_lower_child: (virtual lower)
|
|
* @container: a #ClutterContainer
|
|
* @actor: the actor to raise
|
|
* @sibling: (allow-none): the sibling to lower to, or %NULL to lower
|
|
* to the bottom
|
|
*
|
|
* Lowers @actor to @sibling level, in the depth ordering.
|
|
*
|
|
* This function calls the #ClutterContainerIface.lower() virtual function,
|
|
* which has been deprecated. The default implementation will call
|
|
* clutter_actor_set_child_below_sibling().
|
|
*
|
|
* Since: 0.6
|
|
*
|
|
* Deprecated: 1.10: Use clutter_actor_set_child_below_sibling() instead.
|
|
*/
|
|
void
|
|
clutter_container_lower_child (ClutterContainer *container,
|
|
ClutterActor *actor,
|
|
ClutterActor *sibling)
|
|
{
|
|
ClutterContainerIface *iface;
|
|
ClutterActor *self;
|
|
|
|
g_return_if_fail (CLUTTER_IS_CONTAINER (container));
|
|
g_return_if_fail (CLUTTER_IS_ACTOR (actor));
|
|
g_return_if_fail (sibling == NULL || CLUTTER_IS_ACTOR (sibling));
|
|
|
|
if (actor == sibling)
|
|
return;
|
|
|
|
self = CLUTTER_ACTOR (container);
|
|
|
|
if (clutter_actor_get_parent (actor) != self)
|
|
{
|
|
g_warning ("Actor of type '%s' is not a child of the container "
|
|
"of type '%s'",
|
|
g_type_name (G_OBJECT_TYPE (actor)),
|
|
g_type_name (G_OBJECT_TYPE (container)));
|
|
return;
|
|
}
|
|
|
|
if (sibling != NULL&&
|
|
clutter_actor_get_parent (sibling) != self)
|
|
{
|
|
g_warning ("Actor of type '%s' is not a child of the container "
|
|
"of type '%s'",
|
|
g_type_name (G_OBJECT_TYPE (sibling)),
|
|
g_type_name (G_OBJECT_TYPE (container)));
|
|
return;
|
|
}
|
|
|
|
iface = CLUTTER_CONTAINER_GET_IFACE (container);
|
|
|
|
#ifdef CLUTTER_ENABLE_DEBUG
|
|
if (G_UNLIKELY (_clutter_diagnostic_enabled ()))
|
|
{
|
|
if (iface->lower != container_real_lower)
|
|
_clutter_diagnostic_message ("The ClutterContainer::lower() "
|
|
"virtual function has been deprecated "
|
|
"and it should not be overridden by "
|
|
"newly written code");
|
|
}
|
|
#endif /* CLUTTER_ENABLE_DEBUG */
|
|
|
|
iface->lower (container, actor, sibling);
|
|
}
|
|
|
|
/**
|
|
* clutter_container_sort_depth_order:
|
|
* @container: a #ClutterContainer
|
|
*
|
|
* Sorts a container's children using their depth. This function should not
|
|
* be normally used by applications.
|
|
*
|
|
* Since: 0.6
|
|
*
|
|
* Deprecated: 1.10: The #ClutterContainerIface.sort_depth_order() virtual
|
|
* function should not be used any more; the default implementation in
|
|
* #ClutterContainer does not do anything.
|
|
*/
|
|
void
|
|
clutter_container_sort_depth_order (ClutterContainer *container)
|
|
{
|
|
ClutterContainerIface *iface;
|
|
|
|
g_return_if_fail (CLUTTER_IS_CONTAINER (container));
|
|
|
|
iface = CLUTTER_CONTAINER_GET_IFACE (container);
|
|
|
|
#ifdef CLUTTER_ENABLE_DEBUG
|
|
if (G_UNLIKELY (_clutter_diagnostic_enabled ()))
|
|
{
|
|
if (iface->sort_depth_order != container_real_sort_depth_order)
|
|
_clutter_diagnostic_message ("The ClutterContainer::sort_depth_order() "
|
|
"virtual function has been deprecated "
|
|
"and it should not be overridden by "
|
|
"newly written code");
|
|
}
|
|
#endif /* CLUTTER_ENABLE_DEBUG */
|
|
|
|
iface->sort_depth_order (container);
|
|
}
|
|
|
|
/**
|
|
* clutter_container_find_child_by_name:
|
|
* @container: a #ClutterContainer
|
|
* @child_name: the name of the requested child.
|
|
*
|
|
* Finds a child actor of a container by its name. Search recurses
|
|
* into any child container.
|
|
*
|
|
* Return value: (transfer none): The child actor with the requested name,
|
|
* or %NULL if no actor with that name was found.
|
|
*
|
|
* Since: 0.6
|
|
*/
|
|
ClutterActor *
|
|
clutter_container_find_child_by_name (ClutterContainer *container,
|
|
const gchar *child_name)
|
|
{
|
|
GList *children;
|
|
GList *iter;
|
|
ClutterActor *actor = NULL;
|
|
|
|
g_return_val_if_fail (CLUTTER_IS_CONTAINER (container), NULL);
|
|
g_return_val_if_fail (child_name != NULL, NULL);
|
|
|
|
children = clutter_container_get_children (container);
|
|
|
|
for (iter = children; iter; iter = g_list_next (iter))
|
|
{
|
|
ClutterActor *a;
|
|
const gchar *iter_name;
|
|
|
|
a = CLUTTER_ACTOR (iter->data);
|
|
iter_name = clutter_actor_get_name (a);
|
|
|
|
if (iter_name && !strcmp (iter_name, child_name))
|
|
{
|
|
actor = a;
|
|
break;
|
|
}
|
|
|
|
if (CLUTTER_IS_CONTAINER (a))
|
|
{
|
|
ClutterContainer *c = CLUTTER_CONTAINER (a);
|
|
|
|
actor = clutter_container_find_child_by_name (c, child_name);
|
|
if (actor)
|
|
break;
|
|
}
|
|
}
|
|
|
|
g_list_free (children);
|
|
|
|
return actor;
|
|
}
|
|
|
|
static ClutterChildMeta *
|
|
get_child_meta (ClutterContainer *container,
|
|
ClutterActor *actor)
|
|
{
|
|
ClutterContainerIface *iface = CLUTTER_CONTAINER_GET_IFACE (container);
|
|
ClutterChildMeta *meta;
|
|
|
|
if (iface->child_meta_type == G_TYPE_INVALID)
|
|
return NULL;
|
|
|
|
meta = g_object_get_qdata (G_OBJECT (actor), quark_child_meta);
|
|
if (meta != NULL && meta->actor == actor)
|
|
return meta;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
create_child_meta (ClutterContainer *container,
|
|
ClutterActor *actor)
|
|
{
|
|
ClutterContainerIface *iface = CLUTTER_CONTAINER_GET_IFACE (container);
|
|
ClutterChildMeta *child_meta = NULL;
|
|
|
|
if (iface->child_meta_type == G_TYPE_INVALID)
|
|
return;
|
|
|
|
if (!g_type_is_a (iface->child_meta_type, CLUTTER_TYPE_CHILD_META))
|
|
{
|
|
g_warning ("%s: Child data of type '%s' is not a ClutterChildMeta",
|
|
G_STRLOC, g_type_name (iface->child_meta_type));
|
|
return;
|
|
}
|
|
|
|
child_meta = g_object_new (iface->child_meta_type,
|
|
"container", container,
|
|
"actor", actor,
|
|
NULL);
|
|
|
|
g_object_set_qdata_full (G_OBJECT (actor), quark_child_meta,
|
|
child_meta,
|
|
(GDestroyNotify) g_object_unref);
|
|
}
|
|
|
|
static void
|
|
destroy_child_meta (ClutterContainer *container,
|
|
ClutterActor *actor)
|
|
{
|
|
ClutterContainerIface *iface = CLUTTER_CONTAINER_GET_IFACE (container);
|
|
|
|
if (iface->child_meta_type == G_TYPE_INVALID)
|
|
return;
|
|
|
|
g_object_set_qdata (G_OBJECT (actor), quark_child_meta, NULL);
|
|
}
|
|
|
|
/**
|
|
* clutter_container_get_child_meta:
|
|
* @container: a #ClutterContainer
|
|
* @actor: a #ClutterActor that is a child of @container.
|
|
*
|
|
* Retrieves the #ClutterChildMeta which contains the data about the
|
|
* @container specific state for @actor.
|
|
*
|
|
* Return value: (transfer none): the #ClutterChildMeta for the @actor child
|
|
* of @container or %NULL if the specifiec actor does not exist or the
|
|
* container is not configured to provide #ClutterChildMeta<!-- -->s
|
|
*
|
|
* Since: 0.8
|
|
*/
|
|
ClutterChildMeta *
|
|
clutter_container_get_child_meta (ClutterContainer *container,
|
|
ClutterActor *actor)
|
|
{
|
|
ClutterContainerIface *iface = CLUTTER_CONTAINER_GET_IFACE (container);
|
|
|
|
if (iface->child_meta_type == G_TYPE_INVALID)
|
|
return NULL;
|
|
|
|
if (G_LIKELY (iface->get_child_meta))
|
|
return iface->get_child_meta (container, actor);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* clutter_container_create_child_meta:
|
|
* @container: a #ClutterContainer
|
|
* @actor: a #ClutterActor
|
|
*
|
|
* Creates the #ClutterChildMeta wrapping @actor inside the
|
|
* @container, if the #ClutterContainerIface::child_meta_type
|
|
* class member is not set to %G_TYPE_INVALID.
|
|
*
|
|
* This function is only useful when adding a #ClutterActor to
|
|
* a #ClutterContainer implementation outside of the
|
|
* #ClutterContainer::add() virtual function implementation.
|
|
*
|
|
* Applications should not call this function.
|
|
*
|
|
* Since: 1.2
|
|
*/
|
|
void
|
|
clutter_container_create_child_meta (ClutterContainer *container,
|
|
ClutterActor *actor)
|
|
{
|
|
ClutterContainerIface *iface;
|
|
|
|
g_return_if_fail (CLUTTER_IS_CONTAINER (container));
|
|
g_return_if_fail (CLUTTER_IS_ACTOR (actor));
|
|
|
|
iface = CLUTTER_CONTAINER_GET_IFACE (container);
|
|
|
|
if (iface->child_meta_type == G_TYPE_INVALID)
|
|
return;
|
|
|
|
g_assert (g_type_is_a (iface->child_meta_type, CLUTTER_TYPE_CHILD_META));
|
|
|
|
if (G_LIKELY (iface->create_child_meta))
|
|
iface->create_child_meta (container, actor);
|
|
}
|
|
|
|
/**
|
|
* clutter_container_destroy_child_meta:
|
|
* @container: a #ClutterContainer
|
|
* @actor: a #ClutterActor
|
|
*
|
|
* Destroys the #ClutterChildMeta wrapping @actor inside the
|
|
* @container, if any.
|
|
*
|
|
* This function is only useful when removing a #ClutterActor to
|
|
* a #ClutterContainer implementation outside of the
|
|
* #ClutterContainer::add() virtual function implementation.
|
|
*
|
|
* Applications should not call this function.
|
|
*
|
|
* Since: 1.2
|
|
*/
|
|
void
|
|
clutter_container_destroy_child_meta (ClutterContainer *container,
|
|
ClutterActor *actor)
|
|
{
|
|
ClutterContainerIface *iface;
|
|
|
|
g_return_if_fail (CLUTTER_IS_CONTAINER (container));
|
|
g_return_if_fail (CLUTTER_IS_ACTOR (actor));
|
|
|
|
iface = CLUTTER_CONTAINER_GET_IFACE (container);
|
|
|
|
if (iface->child_meta_type == G_TYPE_INVALID)
|
|
return;
|
|
|
|
if (G_LIKELY (iface->destroy_child_meta))
|
|
iface->destroy_child_meta (container, actor);
|
|
}
|
|
|
|
/**
|
|
* clutter_container_class_find_child_property:
|
|
* @klass: a #GObjectClass implementing the #ClutterContainer interface.
|
|
* @property_name: a property name.
|
|
*
|
|
* Looks up the #GParamSpec for a child property of @klass.
|
|
*
|
|
* Return value: (transfer none): The #GParamSpec for the property or %NULL
|
|
* if no such property exist.
|
|
*
|
|
* Since: 0.8
|
|
*/
|
|
GParamSpec *
|
|
clutter_container_class_find_child_property (GObjectClass *klass,
|
|
const gchar *property_name)
|
|
{
|
|
ClutterContainerIface *iface;
|
|
GObjectClass *child_class;
|
|
GParamSpec *pspec;
|
|
|
|
g_return_val_if_fail (G_IS_OBJECT_CLASS (klass), NULL);
|
|
g_return_val_if_fail (property_name != NULL, NULL);
|
|
g_return_val_if_fail (g_type_is_a (G_TYPE_FROM_CLASS (klass),
|
|
CLUTTER_TYPE_CONTAINER),
|
|
NULL);
|
|
|
|
iface = g_type_interface_peek (klass, CLUTTER_TYPE_CONTAINER);
|
|
g_return_val_if_fail (iface != NULL, NULL);
|
|
|
|
if (iface->child_meta_type == G_TYPE_INVALID)
|
|
return NULL;
|
|
|
|
child_class = g_type_class_ref (iface->child_meta_type);
|
|
pspec = g_object_class_find_property (child_class, property_name);
|
|
g_type_class_unref (child_class);
|
|
|
|
return pspec;
|
|
}
|
|
|
|
/**
|
|
* clutter_container_class_list_child_properties:
|
|
* @klass: a #GObjectClass implementing the #ClutterContainer interface.
|
|
* @n_properties: return location for length of returned array.
|
|
*
|
|
* Returns an array of #GParamSpec for all child properties.
|
|
*
|
|
* Return value: (array length=n_properties) (transfer full): an array
|
|
* of #GParamSpec<!-- -->s which should be freed after use.
|
|
*
|
|
* Since: 0.8
|
|
*/
|
|
GParamSpec **
|
|
clutter_container_class_list_child_properties (GObjectClass *klass,
|
|
guint *n_properties)
|
|
{
|
|
ClutterContainerIface *iface;
|
|
GObjectClass *child_class;
|
|
GParamSpec **retval;
|
|
|
|
g_return_val_if_fail (G_IS_OBJECT_CLASS (klass), NULL);
|
|
g_return_val_if_fail (g_type_is_a (G_TYPE_FROM_CLASS (klass),
|
|
CLUTTER_TYPE_CONTAINER),
|
|
NULL);
|
|
|
|
iface = g_type_interface_peek (klass, CLUTTER_TYPE_CONTAINER);
|
|
g_return_val_if_fail (iface != NULL, NULL);
|
|
|
|
if (iface->child_meta_type == G_TYPE_INVALID)
|
|
return NULL;
|
|
|
|
child_class = g_type_class_ref (iface->child_meta_type);
|
|
retval = g_object_class_list_properties (child_class, n_properties);
|
|
g_type_class_unref (child_class);
|
|
|
|
return retval;
|
|
}
|
|
|
|
static void
|
|
child_notify (ClutterContainer *container,
|
|
ClutterActor *actor,
|
|
GParamSpec *pspec)
|
|
{
|
|
}
|
|
|
|
static inline void
|
|
container_set_child_property (ClutterContainer *container,
|
|
ClutterActor *actor,
|
|
const GValue *value,
|
|
GParamSpec *pspec)
|
|
{
|
|
ClutterChildMeta *data;
|
|
|
|
data = clutter_container_get_child_meta (container, actor);
|
|
g_object_set_property (G_OBJECT (data), pspec->name, value);
|
|
|
|
g_signal_emit (container, container_signals[CHILD_NOTIFY],
|
|
(pspec->flags & G_PARAM_STATIC_NAME)
|
|
? g_quark_from_static_string (pspec->name)
|
|
: g_quark_from_string (pspec->name),
|
|
actor, pspec);
|
|
}
|
|
|
|
/**
|
|
* clutter_container_child_set_property:
|
|
* @container: a #ClutterContainer
|
|
* @child: a #ClutterActor that is a child of @container.
|
|
* @property: the name of the property to set.
|
|
* @value: the value.
|
|
*
|
|
* Sets a container-specific property on a child of @container.
|
|
*
|
|
* Since: 0.8
|
|
*/
|
|
void
|
|
clutter_container_child_set_property (ClutterContainer *container,
|
|
ClutterActor *child,
|
|
const gchar *property,
|
|
const GValue *value)
|
|
{
|
|
GObjectClass *klass;
|
|
GParamSpec *pspec;
|
|
|
|
g_return_if_fail (CLUTTER_IS_CONTAINER (container));
|
|
g_return_if_fail (CLUTTER_IS_ACTOR (child));
|
|
g_return_if_fail (property != NULL);
|
|
g_return_if_fail (value != NULL);
|
|
|
|
klass = G_OBJECT_GET_CLASS (container);
|
|
|
|
pspec = clutter_container_class_find_child_property (klass, property);
|
|
if (!pspec)
|
|
{
|
|
g_warning ("%s: Containers of type '%s' have no child "
|
|
"property named '%s'",
|
|
G_STRLOC, G_OBJECT_TYPE_NAME (container), property);
|
|
return;
|
|
}
|
|
|
|
if (!(pspec->flags & G_PARAM_WRITABLE))
|
|
{
|
|
g_warning ("%s: Child property '%s' of the container '%s' "
|
|
"is not writable",
|
|
G_STRLOC, pspec->name, G_OBJECT_TYPE_NAME (container));
|
|
return;
|
|
}
|
|
|
|
container_set_child_property (container, child, value, pspec);
|
|
}
|
|
|
|
/**
|
|
* clutter_container_child_set:
|
|
* @container: a #ClutterContainer
|
|
* @actor: a #ClutterActor that is a child of @container.
|
|
* @first_prop: name of the first property to be set.
|
|
* @...: value for the first property, followed optionally by more name/value
|
|
* pairs terminated with NULL.
|
|
*
|
|
* Sets container specific properties on the child of a container.
|
|
*
|
|
* Since: 0.8
|
|
*/
|
|
void
|
|
clutter_container_child_set (ClutterContainer *container,
|
|
ClutterActor *actor,
|
|
const gchar *first_prop,
|
|
...)
|
|
{
|
|
GObjectClass *klass;
|
|
const gchar *name;
|
|
va_list var_args;
|
|
|
|
g_return_if_fail (CLUTTER_IS_CONTAINER (container));
|
|
g_return_if_fail (CLUTTER_IS_ACTOR (actor));
|
|
|
|
klass = G_OBJECT_GET_CLASS (container);
|
|
|
|
va_start (var_args, first_prop);
|
|
|
|
name = first_prop;
|
|
while (name)
|
|
{
|
|
GValue value = G_VALUE_INIT;
|
|
gchar *error = NULL;
|
|
GParamSpec *pspec;
|
|
|
|
pspec = clutter_container_class_find_child_property (klass, name);
|
|
if (!pspec)
|
|
{
|
|
g_warning ("%s: Containers of type '%s' have no child "
|
|
"property named '%s'",
|
|
G_STRLOC, G_OBJECT_TYPE_NAME (container), name);
|
|
break;
|
|
}
|
|
|
|
if (!(pspec->flags & G_PARAM_WRITABLE))
|
|
{
|
|
g_warning ("%s: Child property '%s' of the container '%s' "
|
|
"is not writable",
|
|
G_STRLOC, pspec->name, G_OBJECT_TYPE_NAME (container));
|
|
break;
|
|
}
|
|
|
|
G_VALUE_COLLECT_INIT (&value, G_PARAM_SPEC_VALUE_TYPE (pspec),
|
|
var_args, 0,
|
|
&error);
|
|
|
|
if (error)
|
|
{
|
|
/* we intentionally leak the GValue because it might
|
|
* be in an undefined state and calling g_value_unset()
|
|
* on it might crash
|
|
*/
|
|
g_warning ("%s: %s", G_STRLOC, error);
|
|
g_free (error);
|
|
break;
|
|
}
|
|
|
|
container_set_child_property (container, actor, &value, pspec);
|
|
|
|
g_value_unset (&value);
|
|
|
|
name = va_arg (var_args, gchar*);
|
|
}
|
|
|
|
va_end (var_args);
|
|
}
|
|
|
|
static inline void
|
|
container_get_child_property (ClutterContainer *container,
|
|
ClutterActor *actor,
|
|
GValue *value,
|
|
GParamSpec *pspec)
|
|
{
|
|
ClutterChildMeta *data;
|
|
|
|
data = clutter_container_get_child_meta (container, actor);
|
|
g_object_get_property (G_OBJECT (data), pspec->name, value);
|
|
}
|
|
|
|
/**
|
|
* clutter_container_child_get_property:
|
|
* @container: a #ClutterContainer
|
|
* @child: a #ClutterActor that is a child of @container.
|
|
* @property: the name of the property to set.
|
|
* @value: the value.
|
|
*
|
|
* Gets a container specific property of a child of @container, In general,
|
|
* a copy is made of the property contents and the caller is responsible for
|
|
* freeing the memory by calling g_value_unset().
|
|
*
|
|
* Note that clutter_container_child_set_property() is really intended for
|
|
* language bindings, clutter_container_child_set() is much more convenient
|
|
* for C programming.
|
|
*
|
|
* Since: 0.8
|
|
*/
|
|
void
|
|
clutter_container_child_get_property (ClutterContainer *container,
|
|
ClutterActor *child,
|
|
const gchar *property,
|
|
GValue *value)
|
|
{
|
|
GObjectClass *klass;
|
|
GParamSpec *pspec;
|
|
|
|
g_return_if_fail (CLUTTER_IS_CONTAINER (container));
|
|
g_return_if_fail (CLUTTER_IS_ACTOR (child));
|
|
g_return_if_fail (property != NULL);
|
|
g_return_if_fail (value != NULL);
|
|
|
|
klass = G_OBJECT_GET_CLASS (container);
|
|
|
|
pspec = clutter_container_class_find_child_property (klass, property);
|
|
if (!pspec)
|
|
{
|
|
g_warning ("%s: Containers of type '%s' have no child "
|
|
"property named '%s'",
|
|
G_STRLOC, G_OBJECT_TYPE_NAME (container), property);
|
|
return;
|
|
}
|
|
|
|
if (!(pspec->flags & G_PARAM_READABLE))
|
|
{
|
|
g_warning ("%s: Child property '%s' of the container '%s' "
|
|
"is not writable",
|
|
G_STRLOC, pspec->name, G_OBJECT_TYPE_NAME (container));
|
|
return;
|
|
}
|
|
|
|
container_get_child_property (container, child, value, pspec);
|
|
}
|
|
|
|
|
|
/**
|
|
* clutter_container_child_get:
|
|
* @container: a #ClutterContainer
|
|
* @actor: a #ClutterActor that is a child of @container.
|
|
* @first_prop: name of the first property to be set.
|
|
* @...: value for the first property, followed optionally by more name/value
|
|
* pairs terminated with NULL.
|
|
*
|
|
* Gets @container specific properties of an actor.
|
|
*
|
|
* In general, a copy is made of the property contents and the caller is
|
|
* responsible for freeing the memory in the appropriate manner for the type, for
|
|
* instance by calling g_free() or g_object_unref().
|
|
*
|
|
* Since: 0.8
|
|
*/
|
|
void
|
|
clutter_container_child_get (ClutterContainer *container,
|
|
ClutterActor *actor,
|
|
const gchar *first_prop,
|
|
...)
|
|
{
|
|
GObjectClass *klass;
|
|
const gchar *name;
|
|
va_list var_args;
|
|
|
|
g_return_if_fail (CLUTTER_IS_CONTAINER (container));
|
|
g_return_if_fail (CLUTTER_IS_ACTOR (actor));
|
|
|
|
klass = G_OBJECT_GET_CLASS (container);
|
|
|
|
va_start (var_args, first_prop);
|
|
|
|
name = first_prop;
|
|
while (name)
|
|
{
|
|
GValue value = G_VALUE_INIT;
|
|
gchar *error = NULL;
|
|
GParamSpec *pspec;
|
|
|
|
pspec = clutter_container_class_find_child_property (klass, name);
|
|
if (!pspec)
|
|
{
|
|
g_warning ("%s: container '%s' has no child property named '%s'",
|
|
G_STRLOC, G_OBJECT_TYPE_NAME (container), name);
|
|
break;
|
|
}
|
|
|
|
if (!(pspec->flags & G_PARAM_READABLE))
|
|
{
|
|
g_warning ("%s: child property '%s' of container '%s' is not readable",
|
|
G_STRLOC, pspec->name, G_OBJECT_TYPE_NAME (container));
|
|
break;
|
|
}
|
|
|
|
g_value_init (&value, G_PARAM_SPEC_VALUE_TYPE (pspec));
|
|
|
|
container_get_child_property (container, actor, &value, pspec);
|
|
|
|
G_VALUE_LCOPY (&value, var_args, 0, &error);
|
|
if (error)
|
|
{
|
|
g_warning ("%s: %s", G_STRLOC, error);
|
|
g_free (error);
|
|
g_value_unset (&value);
|
|
break;
|
|
}
|
|
|
|
g_value_unset (&value);
|
|
|
|
name = va_arg (var_args, gchar*);
|
|
}
|
|
|
|
va_end (var_args);
|
|
}
|
|
|
|
/**
|
|
* clutter_container_child_notify:
|
|
* @container: a #ClutterContainer
|
|
* @child: a #ClutterActor
|
|
* @pspec: a #GParamSpec
|
|
*
|
|
* Calls the #ClutterContainerIface.child_notify() virtual function
|
|
* of #ClutterContainer. The default implementation will emit the
|
|
* #ClutterContainer::child-notify signal.
|
|
*
|
|
* Since: 1.6
|
|
*/
|
|
void
|
|
clutter_container_child_notify (ClutterContainer *container,
|
|
ClutterActor *child,
|
|
GParamSpec *pspec)
|
|
{
|
|
g_return_if_fail (CLUTTER_IS_CONTAINER (container));
|
|
g_return_if_fail (CLUTTER_IS_ACTOR (child));
|
|
g_return_if_fail (pspec != NULL);
|
|
|
|
g_return_if_fail (clutter_actor_get_parent (child) == CLUTTER_ACTOR (container));
|
|
|
|
CLUTTER_CONTAINER_GET_IFACE (container)->child_notify (container,
|
|
child,
|
|
pspec);
|
|
}
|