b842f0ad8e
The Constraint base, abstract class should be used to implement Actor modifiers that affect the way an actor is sized or positioned inside a fixed layout manager.
101 lines
3.4 KiB
C
101 lines
3.4 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) 2010 Intel Corporation.
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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:
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* Emmanuele Bassi <ebassi@linux.intel.com>
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*/
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#if !defined(__CLUTTER_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
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#error "Only <clutter/clutter.h> can be included directly."
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#endif
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#ifndef __CLUTTER_CONSTRAINT_H__
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#define __CLUTTER_CONSTRAINT_H__
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#include <clutter/clutter-actor-meta.h>
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G_BEGIN_DECLS
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#define CLUTTER_TYPE_CONSTRAINT (clutter_constraint_get_type ())
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#define CLUTTER_CONSTRAINT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_CONSTRAINT, ClutterConstraint))
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#define CLUTTER_IS_CONSTRAINT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CLUTTER_TYPE_CONSTRAINT))
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#define CLUTTER_CONSTRAINT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CLUTTER_TYPE_CONSTRAINT, ClutterConstraintClass))
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#define CLUTTER_IS_CONSTRAINT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CLUTTER_TYPE_CONSTRAINT))
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#define CLUTTER_CONSTRAINT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), CLUTTER_TYPE_CONSTRAINT, ClutterConstraintClass))
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typedef struct _ClutterConstraintPrivate ClutterConstraintPrivate;
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typedef struct _ClutterConstraintClass ClutterConstraintClass;
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/**
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* ClutterConstraint:
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*
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* The <structname>ClutterConstraint</structname> structure contains only
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* private data and should be accessed using the provided API
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*
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* Since: 1.4
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*/
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struct _ClutterConstraint
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{
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/*< private >*/
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ClutterActorMeta parent_instance;
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ClutterConstraintPrivate *priv;
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};
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/**
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* ClutterConstraintClass:
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* @set_actor: virtual function, called when a constraint is applied to
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* a #ClutterActor
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*
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* The <structname>ClutterConstraintClass</structname> structure contains
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* only private data
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*
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* Since: 1.4
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*/
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struct _ClutterConstraintClass
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{
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/*< private >*/
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ClutterActorMetaClass parent_class;
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/*< private >*/
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void (* _clutter_constraint1) (void);
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void (* _clutter_constraint2) (void);
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void (* _clutter_constraint3) (void);
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void (* _clutter_constraint4) (void);
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void (* _clutter_constraint5) (void);
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void (* _clutter_constraint6) (void);
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void (* _clutter_constraint7) (void);
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void (* _clutter_constraint8) (void);
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};
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GType clutter_constraint_get_type (void) G_GNUC_CONST;
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/* ClutterActor API */
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void clutter_actor_add_constraint (ClutterActor *actor,
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ClutterConstraint *constraint);
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void clutter_actor_remove_constraint (ClutterActor *actor,
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ClutterConstraint *constraint);
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GList *clutter_actor_get_constraints (ClutterActor *actor);
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void clutter_actor_clear_constraints (ClutterActor *actor);
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G_END_DECLS
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#endif /* __CLUTTER_CONSTRAINT_H__ */
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