mutter/clutter/clutter-effect.h
Adel Gadllah bed2d9e787 ClutterActor: Add clutter_actor_has_effects
Adds an efficent way to query whether an actor has any
applied effects.

https://bugzilla.gnome.org/show_bug.cgi?id=660471
2011-09-29 19:34:24 +02:00

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/*
* Clutter.
*
* An OpenGL based 'interactive canvas' library.
*
* Copyright (C) 2010 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>
*/
#if !defined(__CLUTTER_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
#error "Only <clutter/clutter.h> can be included directly."
#endif
#ifndef __CLUTTER_EFFECT_H__
#define __CLUTTER_EFFECT_H__
#include <clutter/clutter-actor-meta.h>
G_BEGIN_DECLS
#define CLUTTER_TYPE_EFFECT (clutter_effect_get_type ())
#define CLUTTER_EFFECT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_EFFECT, ClutterEffect))
#define CLUTTER_IS_EFFECT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CLUTTER_TYPE_EFFECT))
#define CLUTTER_EFFECT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CLUTTER_TYPE_EFFECT, ClutterEffectClass))
#define CLUTTER_IS_EFFECT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CLUTTER_TYPE_EFFECT))
#define CLUTTER_EFFECT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), CLUTTER_TYPE_EFFECT, ClutterEffectClass))
typedef struct _ClutterEffectClass ClutterEffectClass;
/**
* ClutterEffectPaintFlags:
* @CLUTTER_EFFECT_PAINT_ACTOR_DIRTY: The actor or one of its children
* has queued a redraw before this paint. This implies that the effect
* should call clutter_actor_continue_paint() to chain to the next
* effect and can not cache any results from a previous paint.
*
* Flags passed to the paint or pick method of #ClutterEffect.
*/
typedef enum { /*< prefix=CLUTTER_EFFECT_PAINT >*/
CLUTTER_EFFECT_PAINT_ACTOR_DIRTY = (1 << 0)
} ClutterEffectPaintFlags;
/**
* ClutterEffect:
*
* The #ClutterEffect structure contains only private data and should
* be accessed using the provided API
*
* Since: 1.4
*/
struct _ClutterEffect
{
/*< private >*/
ClutterActorMeta parent_instance;
};
/**
* ClutterEffectClass:
* @pre_paint: virtual function
* @post_paint: virtual function
* @get_paint_volume: virtual function
* @paint: virtual function
* @pick: virtual function
*
* The #ClutterEffectClass structure contains only private data
*
* Since: 1.4
*/
struct _ClutterEffectClass
{
/*< private >*/
ClutterActorMetaClass parent_class;
/*< public >*/
gboolean (* pre_paint) (ClutterEffect *effect);
void (* post_paint) (ClutterEffect *effect);
gboolean (* get_paint_volume) (ClutterEffect *effect,
ClutterPaintVolume *volume);
void (* paint) (ClutterEffect *effect,
ClutterEffectPaintFlags flags);
void (* pick) (ClutterEffect *effect,
ClutterEffectPaintFlags flags);
/*< private >*/
void (* _clutter_effect4) (void);
void (* _clutter_effect5) (void);
void (* _clutter_effect6) (void);
};
GType clutter_effect_get_type (void) G_GNUC_CONST;
void clutter_effect_queue_repaint (ClutterEffect *effect);
/*
* ClutterActor API
*/
void clutter_actor_add_effect (ClutterActor *self,
ClutterEffect *effect);
void clutter_actor_add_effect_with_name (ClutterActor *self,
const gchar *name,
ClutterEffect *effect);
void clutter_actor_remove_effect (ClutterActor *self,
ClutterEffect *effect);
void clutter_actor_remove_effect_by_name (ClutterActor *self,
const gchar *name);
GList * clutter_actor_get_effects (ClutterActor *self);
ClutterEffect *clutter_actor_get_effect (ClutterActor *self,
const gchar *name);
void clutter_actor_clear_effects (ClutterActor *self);
gboolean clutter_actor_has_effects (ClutterActor *self);
G_END_DECLS
#endif /* __CLUTTER_EFFECT_H__ */