mirror of
https://github.com/brl/mutter.git
synced 2024-09-20 06:25:51 -04:00
6fff1bcdc6
The Animatable interface implementation will always have the computed value applied, whilst the non-Animatable objects go through the interval validation first to avoid incurring in assertions and warnings. The Animatable::animate_property() should also be able to validate the property it's supposed to interpolate, and eventually discard it. This requires adding a return value to the virtual function (and its wrapper function). The Animation code will then apply the computed value only if the animate_property() returns TRUE -- unifying the code path with the non-Animatable objects.
81 lines
3.1 KiB
C
81 lines
3.1 KiB
C
/*
|
|
* Clutter.
|
|
*
|
|
* An OpenGL based 'interactive canvas' library.
|
|
*
|
|
* 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/>.
|
|
*
|
|
* Author:
|
|
* Emmanuele Bassi <ebassi@linux.intel.com>
|
|
*/
|
|
|
|
#ifndef __CLUTTER_ANIMATABLE_H__
|
|
#define __CLUTTER_ANIMATABLE_H__
|
|
|
|
#if !defined(__CLUTTER_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
|
|
#error "Only <clutter/clutter.h> can be included directly."
|
|
#endif
|
|
|
|
#include <clutter/clutter-animation.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
#define CLUTTER_TYPE_ANIMATABLE (clutter_animatable_get_type ())
|
|
#define CLUTTER_ANIMATABLE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_ANIMATABLE, ClutterAnimatable))
|
|
#define CLUTTER_IS_ANIMATABLE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CLUTTER_TYPE_ANIMATABLE))
|
|
#define CLUTTER_ANIMATABLE_GET_IFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), CLUTTER_TYPE_ANIMATABLE, ClutterAnimatableIface))
|
|
|
|
typedef struct _ClutterAnimatable ClutterAnimatable; /* dummy typedef */
|
|
typedef struct _ClutterAnimatableIface ClutterAnimatableIface;
|
|
|
|
/**
|
|
* ClutterAnimatableIface:
|
|
* @animate_property: virtual function for animating a property
|
|
*
|
|
* Base interface for #GObject<!-- -->s that can be animated by a
|
|
* a #ClutterAnimation.
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
struct _ClutterAnimatableIface
|
|
{
|
|
/*< private >*/
|
|
GTypeInterface parent_iface;
|
|
|
|
/*< public >*/
|
|
gboolean (* animate_property) (ClutterAnimatable *animatable,
|
|
ClutterAnimation *animation,
|
|
const gchar *property_name,
|
|
const GValue *initial_value,
|
|
const GValue *final_value,
|
|
gdouble progress,
|
|
GValue *value);
|
|
};
|
|
|
|
GType clutter_animatable_get_type (void) G_GNUC_CONST;
|
|
|
|
gboolean clutter_animatable_animate_property (ClutterAnimatable *animatable,
|
|
ClutterAnimation *animation,
|
|
const gchar *property_name,
|
|
const GValue *initial_value,
|
|
const GValue *final_value,
|
|
gdouble progress,
|
|
GValue *value);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __CLUTTER_ANIMATABLE_H__ */
|