77ec8774a0
Revert all the work that happened on the master branch.
Sadly, this is the only way to merge the current development branch back
into master.
It is now abundantly clear that I merged the 1.99 branch far too soon,
and that Clutter 2.0 won't happen any time soon, if at all.
Since having the development happen on a separate branch throws a lot of
people into confusion, let's undo the clutter-1.99 → master merge, and
move back the development of Clutter to the master branch.
In order to do so, we need to do some surgery to the Git repository.
First, we do a massive revert in a single commit of all that happened
since the switch to 1.99 and the API version bump done with the
89a2862b05 commit. The history is too long
to be reverted commit by commit without being extremely messy.
323 lines
8.9 KiB
C
323 lines
8.9 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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* Copyright (C) 2008 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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* Author: Emmanuele Bassi <ebassi@linux.intel.com>
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*/
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/**
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* SECTION:clutter-stage-manager
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* @short_description: Maintains the list of stages
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*
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* #ClutterStageManager is a singleton object, owned by Clutter, which
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* maintains the list of currently active stages
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*
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* Every newly-created #ClutterStage will cause the emission of the
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* #ClutterStageManager::stage-added signal; once a #ClutterStage has
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* been destroyed, the #ClutterStageManager::stage-removed signal will
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* be emitted
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*
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* #ClutterStageManager is available since Clutter 0.8
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "clutter-stage-manager-private.h"
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#include "clutter-marshal.h"
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#include "clutter-debug.h"
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#include "clutter-private.h"
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#include "clutter-version.h"
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#include "deprecated/clutter-stage-manager.h"
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enum
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{
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PROP_0,
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PROP_DEFAULT_STAGE
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};
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enum
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{
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STAGE_ADDED,
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STAGE_REMOVED,
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LAST_SIGNAL
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};
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static guint manager_signals[LAST_SIGNAL] = { 0, };
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static ClutterStage *default_stage = NULL;
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G_DEFINE_TYPE (ClutterStageManager, clutter_stage_manager, G_TYPE_OBJECT);
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static void
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clutter_stage_manager_get_property (GObject *gobject,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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switch (prop_id)
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{
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case PROP_DEFAULT_STAGE:
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g_value_set_object (value, default_stage);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
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break;
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}
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}
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static void
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clutter_stage_manager_dispose (GObject *gobject)
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{
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ClutterStageManager *stage_manager;
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stage_manager = CLUTTER_STAGE_MANAGER (gobject);
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g_slist_foreach (stage_manager->stages, (GFunc) clutter_actor_destroy, NULL);
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g_slist_free (stage_manager->stages);
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stage_manager->stages = NULL;
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G_OBJECT_CLASS (clutter_stage_manager_parent_class)->dispose (gobject);
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}
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static void
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clutter_stage_manager_class_init (ClutterStageManagerClass *klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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gobject_class->dispose = clutter_stage_manager_dispose;
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gobject_class->get_property = clutter_stage_manager_get_property;
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/**
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* ClutterStageManager:default-stage:
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*
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* The default stage used by Clutter.
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*
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* Since: 0.8
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*/
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g_object_class_install_property (gobject_class,
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PROP_DEFAULT_STAGE,
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g_param_spec_object ("default-stage",
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"Default Stage",
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"The default stage",
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CLUTTER_TYPE_STAGE,
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CLUTTER_PARAM_READABLE));
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/**
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* ClutterStageManager::stage-added:
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* @stage_manager: the object which received the signal
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* @stage: the added stage
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*
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* The ::stage-added signal is emitted each time a new #ClutterStage
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* has been added to the stage manager.
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*
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* Since: 0.8
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*/
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manager_signals[STAGE_ADDED] =
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g_signal_new ("stage-added",
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G_OBJECT_CLASS_TYPE (gobject_class),
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (ClutterStageManagerClass, stage_added),
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NULL, NULL,
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_clutter_marshal_VOID__OBJECT,
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G_TYPE_NONE, 1,
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CLUTTER_TYPE_STAGE);
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/**
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* ClutterStageManager::stage-removed:
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* @stage_manager: the object which received the signal
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* @stage: the removed stage
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*
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* The ::stage-removed signal is emitted each time a #ClutterStage
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* has been removed from the stage manager.
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*
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* Since: 0.8
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*/
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manager_signals[STAGE_REMOVED] =
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g_signal_new ("stage-removed",
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G_OBJECT_CLASS_TYPE (gobject_class),
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (ClutterStageManagerClass, stage_removed),
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NULL, NULL,
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_clutter_marshal_VOID__OBJECT,
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G_TYPE_NONE, 1,
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CLUTTER_TYPE_STAGE);
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}
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static void
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clutter_stage_manager_init (ClutterStageManager *stage_manager)
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{
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}
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/**
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* clutter_stage_manager_get_default:
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*
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* Returns the default #ClutterStageManager.
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*
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* Return value: (transfer none): the default stage manager instance. The returned
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* object is owned by Clutter and you should not reference or unreference it.
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*
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* Since: 0.8
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*/
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ClutterStageManager *
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clutter_stage_manager_get_default (void)
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{
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ClutterMainContext *context = _clutter_context_get_default ();
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if (G_UNLIKELY (context->stage_manager == NULL))
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context->stage_manager = g_object_new (CLUTTER_TYPE_STAGE_MANAGER, NULL);
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return context->stage_manager;
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}
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/**
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* clutter_stage_manager_set_default_stage:
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* @stage_manager: a #ClutterStageManager
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* @stage: a #ClutterStage
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*
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* Sets @stage as the default stage.
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*
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* Since: 0.8
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*
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* Deprecated: 1.2: Calling this function has no effect
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*/
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void
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clutter_stage_manager_set_default_stage (ClutterStageManager *stage_manager,
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ClutterStage *stage)
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{
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}
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/*< private >
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* _clutter_stage_manager_set_default_stage:
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* @stage_manager: a #ClutterStageManager
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* @stage: a #ClutterStage
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*
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* Sets @stage as the default stage
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*
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* A no-op if there already is a default stage
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*/
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void
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_clutter_stage_manager_set_default_stage (ClutterStageManager *stage_manager,
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ClutterStage *stage)
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{
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if (G_UNLIKELY (default_stage == NULL))
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{
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default_stage = stage;
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/* the default stage is immediately realized */
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clutter_actor_realize (CLUTTER_ACTOR (stage));
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g_object_notify (G_OBJECT (stage_manager), "default-stage");
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}
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}
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/**
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* clutter_stage_manager_get_default_stage:
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* @stage_manager: a #ClutterStageManager
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*
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* Returns the default #ClutterStage.
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*
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* Return value: (transfer none): the default stage. The returned object
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* is owned by Clutter and you should never reference or unreference it
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*
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* Since: 0.8
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*/
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ClutterStage *
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clutter_stage_manager_get_default_stage (ClutterStageManager *stage_manager)
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{
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return default_stage;
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}
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/**
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* clutter_stage_manager_list_stages:
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* @stage_manager: a #ClutterStageManager
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*
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* Lists all currently used stages.
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*
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* Return value: (transfer container) (element-type Clutter.Stage): a newly
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* allocated list of #ClutterStage objects. Use g_slist_free() to
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* deallocate it when done.
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*
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* Since: 0.8
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*/
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GSList *
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clutter_stage_manager_list_stages (ClutterStageManager *stage_manager)
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{
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return g_slist_copy (stage_manager->stages);
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}
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/**
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* clutter_stage_manager_peek_stages:
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* @stage_manager: a #ClutterStageManager
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*
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* Lists all currently used stages.
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*
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* Return value: (transfer none) (element-type Clutter.Stage): a pointer
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* to the internal list of #ClutterStage objects. The returned list
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* is owned by the #ClutterStageManager and should never be modified
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* or freed
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*
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* Since: 1.0
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*/
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const GSList *
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clutter_stage_manager_peek_stages (ClutterStageManager *stage_manager)
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{
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return stage_manager->stages;
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}
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void
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_clutter_stage_manager_add_stage (ClutterStageManager *stage_manager,
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ClutterStage *stage)
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{
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if (g_slist_find (stage_manager->stages, stage))
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{
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g_warning ("Trying to add a stage to the list of managed stages, "
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"but it is already in it, aborting.");
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return;
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}
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g_object_ref_sink (stage);
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stage_manager->stages = g_slist_append (stage_manager->stages, stage);
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g_signal_emit (stage_manager, manager_signals[STAGE_ADDED], 0, stage);
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}
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void
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_clutter_stage_manager_remove_stage (ClutterStageManager *stage_manager,
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ClutterStage *stage)
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{
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/* this might be called multiple times from a ::dispose, so it
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* needs to just return without warning
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*/
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if (!g_slist_find (stage_manager->stages, stage))
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return;
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stage_manager->stages = g_slist_remove (stage_manager->stages, stage);
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/* if the default stage is being destroyed then we unset the pointer */
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if (default_stage == stage)
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default_stage = NULL;
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g_signal_emit (stage_manager, manager_signals[STAGE_REMOVED], 0, stage);
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g_object_unref (stage);
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}
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