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/*
* Clutter.
*
* An OpenGL based 'interactive canvas' library.
*
* Authored By: Emmanuele Bassi <ebassi@linux.intel.com>
*
* Copyright (C) 2009 Intel Corporation.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* SECTION:clutter-master-clock
* @short_description: The master clock for all animations
*
* The #ClutterMasterClock class is responsible for advancing all
* #ClutterTimelines when a stage is being redrawn. The master clock
* makes sure that the scenegraph is always integrally updated before
* painting it.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "clutter-master-clock.h"
#include "clutter-master-clock-default.h"
#include "clutter-private.h"
#ifdef CLUTTER_WINDOWING_GDK
#include "gdk/clutter-backend-gdk.h"
#include "gdk/clutter-master-clock-gdk.h"
#endif
#define clutter_master_clock_get_type _clutter_master_clock_get_type
typedef ClutterMasterClockIface ClutterMasterClockInterface;
G_DEFINE_INTERFACE (ClutterMasterClock, clutter_master_clock, G_TYPE_OBJECT)
static void
clutter_master_clock_default_init (ClutterMasterClockInterface *iface)
{
}
ClutterMasterClock *
_clutter_master_clock_get_default (void)
{
ClutterMainContext *context = _clutter_context_get_default ();
if (G_UNLIKELY (context->master_clock == NULL))
{
#ifdef CLUTTER_WINDOWING_GDK
if (CLUTTER_IS_BACKEND_GDK (context->backend))
context->master_clock = g_object_new (CLUTTER_TYPE_MASTER_CLOCK_GDK, NULL);
else
#endif
context->master_clock = g_object_new (CLUTTER_TYPE_MASTER_CLOCK_DEFAULT, NULL);
}
return context->master_clock;
}
/*
* _clutter_master_clock_add_timeline:
* @master_clock: a #ClutterMasterClock
* @timeline: a #ClutterTimeline
*
* Adds @timeline to the list of playing timelines held by the master
* clock.
*/
void
_clutter_master_clock_add_timeline (ClutterMasterClock *master_clock,
ClutterTimeline *timeline)
{
g_return_if_fail (CLUTTER_IS_MASTER_CLOCK (master_clock));
CLUTTER_MASTER_CLOCK_GET_IFACE (master_clock)->add_timeline (master_clock,
timeline);
}
/*
* _clutter_master_clock_remove_timeline:
* @master_clock: a #ClutterMasterClock
* @timeline: a #ClutterTimeline
*
* Removes @timeline from the list of playing timelines held by the
* master clock.
*/
void
_clutter_master_clock_remove_timeline (ClutterMasterClock *master_clock,
ClutterTimeline *timeline)
{
g_return_if_fail (CLUTTER_IS_MASTER_CLOCK (master_clock));
CLUTTER_MASTER_CLOCK_GET_IFACE (master_clock)->remove_timeline (master_clock,
timeline);
}
/*
* _clutter_master_clock_start_running:
* @master_clock: a #ClutterMasterClock
*
* Called when we have events or redraws to process; if the clock
* is stopped, does the processing necessary to wake it up again.
*/
void
_clutter_master_clock_start_running (ClutterMasterClock *master_clock)
{
g_return_if_fail (CLUTTER_IS_MASTER_CLOCK (master_clock));
CLUTTER_MASTER_CLOCK_GET_IFACE (master_clock)->start_running (master_clock);
}
/**
* _clutter_master_clock_ensure_next_iteration:
* @master_clock: a #ClutterMasterClock
*
* Ensures that the master clock will run at least one iteration
*/
void
_clutter_master_clock_ensure_next_iteration (ClutterMasterClock *master_clock)
{
g_return_if_fail (CLUTTER_IS_MASTER_CLOCK (master_clock));
CLUTTER_MASTER_CLOCK_GET_IFACE (master_clock)->ensure_next_iteration (master_clock);
}
void
_clutter_master_clock_set_paused (ClutterMasterClock *master_clock,
gboolean paused)
{
g_return_if_fail (CLUTTER_IS_MASTER_CLOCK (master_clock));
CLUTTER_MASTER_CLOCK_GET_IFACE (master_clock)->set_paused (master_clock,
!!paused);
}
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