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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>
*/
#ifndef __CLUTTER_CONSTRAINT_H__
#define __CLUTTER_CONSTRAINT_H__
#if !defined(__CLUTTER_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
#error "Only <clutter/clutter.h> can be included directly."
#endif
#include <clutter/clutter-actor-meta.h>
G_BEGIN_DECLS
#define CLUTTER_TYPE_CONSTRAINT (clutter_constraint_get_type ())
#define CLUTTER_CONSTRAINT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_CONSTRAINT, ClutterConstraint))
#define CLUTTER_IS_CONSTRAINT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CLUTTER_TYPE_CONSTRAINT))
#define CLUTTER_CONSTRAINT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CLUTTER_TYPE_CONSTRAINT, ClutterConstraintClass))
#define CLUTTER_IS_CONSTRAINT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CLUTTER_TYPE_CONSTRAINT))
#define CLUTTER_CONSTRAINT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), CLUTTER_TYPE_CONSTRAINT, ClutterConstraintClass))
typedef struct _ClutterConstraintClass ClutterConstraintClass;
/**
* ClutterConstraint:
*
* The #ClutterConstraint structure contains only
* private data and should be accessed using the provided API
*
* Since: 1.4
*/
struct _ClutterConstraint
{
/*< private >*/
ClutterActorMeta parent_instance;
};
/**
* ClutterConstraintClass:
* @update_allocation: virtual function used to update the allocation
* of the #ClutterActor using the #ClutterConstraint
* @update_preferred_size: virtual function used to update the preferred
* size of the #ClutterActor using the #ClutterConstraint; optional,
* since 1.22
*
* The #ClutterConstraintClass structure contains
* only private data
*
* Since: 1.4
*/
struct _ClutterConstraintClass
{
/*< private >*/
ClutterActorMetaClass parent_class;
/*< public >*/
void (* update_allocation) (ClutterConstraint *constraint,
ClutterActor *actor,
ClutterActorBox *allocation);
void (* update_preferred_size) (ClutterConstraint *constraint,
ClutterActor *actor,
ClutterOrientation direction,
float for_size,
float *minimum_size,
float *natural_size);
/*< private >*/
void (* _clutter_constraint1) (void);
void (* _clutter_constraint2) (void);
void (* _clutter_constraint3) (void);
void (* _clutter_constraint4) (void);
void (* _clutter_constraint5) (void);
void (* _clutter_constraint6) (void);
void (* _clutter_constraint7) (void);
};
CLUTTER_AVAILABLE_IN_1_4
GType clutter_constraint_get_type (void) G_GNUC_CONST;
/* ClutterActor API */
CLUTTER_AVAILABLE_IN_1_4
void clutter_actor_add_constraint (ClutterActor *self,
ClutterConstraint *constraint);
CLUTTER_AVAILABLE_IN_1_4
void clutter_actor_add_constraint_with_name (ClutterActor *self,
const gchar *name,
ClutterConstraint *constraint);
CLUTTER_AVAILABLE_IN_1_4
void clutter_actor_remove_constraint (ClutterActor *self,
ClutterConstraint *constraint);
CLUTTER_AVAILABLE_IN_1_4
void clutter_actor_remove_constraint_by_name (ClutterActor *self,
const gchar *name);
CLUTTER_AVAILABLE_IN_1_4
GList * clutter_actor_get_constraints (ClutterActor *self);
CLUTTER_AVAILABLE_IN_1_4
ClutterConstraint *clutter_actor_get_constraint (ClutterActor *self,
const gchar *name);
CLUTTER_AVAILABLE_IN_1_4
void clutter_actor_clear_constraints (ClutterActor *self);
CLUTTER_AVAILABLE_IN_1_10
gboolean clutter_actor_has_constraints (ClutterActor *self);
G_END_DECLS
#endif /* __CLUTTER_CONSTRAINT_H__ */
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