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02b69e4d76
GCC has some optimization for the inclusion guard, but they only work if the check is the outermost one. We're fairly inconsistent because of historical reasons, so we should ensure that we follow the same pattern in every public header.
130 lines
5.0 KiB
C
130 lines
5.0 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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#ifndef __CLUTTER_CONSTRAINT_H__
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#define __CLUTTER_CONSTRAINT_H__
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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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#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 _ClutterConstraintClass ClutterConstraintClass;
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/**
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* ClutterConstraint:
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*
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* The #ClutterConstraint 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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};
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/**
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* ClutterConstraintClass:
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* @update_allocation: virtual function used to update the allocation
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* of the #ClutterActor using the #ClutterConstraint
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* @update_preferred_size: virtual function used to update the preferred
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* size of the #ClutterActor using the #ClutterConstraint; optional,
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* since 1.22
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*
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* The #ClutterConstraintClass 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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/*< public >*/
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void (* update_allocation) (ClutterConstraint *constraint,
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ClutterActor *actor,
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ClutterActorBox *allocation);
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void (* update_preferred_size) (ClutterConstraint *constraint,
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ClutterActor *actor,
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ClutterOrientation direction,
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float for_size,
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float *minimum_size,
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float *natural_size);
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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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};
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CLUTTER_AVAILABLE_IN_1_4
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GType clutter_constraint_get_type (void) G_GNUC_CONST;
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/* ClutterActor API */
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CLUTTER_AVAILABLE_IN_1_4
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void clutter_actor_add_constraint (ClutterActor *self,
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ClutterConstraint *constraint);
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CLUTTER_AVAILABLE_IN_1_4
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void clutter_actor_add_constraint_with_name (ClutterActor *self,
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const gchar *name,
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ClutterConstraint *constraint);
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CLUTTER_AVAILABLE_IN_1_4
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void clutter_actor_remove_constraint (ClutterActor *self,
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ClutterConstraint *constraint);
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CLUTTER_AVAILABLE_IN_1_4
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void clutter_actor_remove_constraint_by_name (ClutterActor *self,
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const gchar *name);
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CLUTTER_AVAILABLE_IN_1_4
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GList * clutter_actor_get_constraints (ClutterActor *self);
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CLUTTER_AVAILABLE_IN_1_4
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ClutterConstraint *clutter_actor_get_constraint (ClutterActor *self,
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const gchar *name);
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CLUTTER_AVAILABLE_IN_1_4
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void clutter_actor_clear_constraints (ClutterActor *self);
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CLUTTER_AVAILABLE_IN_1_10
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gboolean clutter_actor_has_constraints (ClutterActor *self);
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G_END_DECLS
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#endif /* __CLUTTER_CONSTRAINT_H__ */
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