aa623df78f
* clutter/clutter-behaviour.h: Add a function prototype for the foreach function: we need something more specific than GFunc; add clutter_behaviour_get_actors(), used to get a list of the actors. * clutter/clutter-behaviour.c: Add debugging notes; add a warning for behaviour implementations missing the alpha_notify vfunc; add api documentation * clutter/clutter-behaviour-opacity.c: * clutter/clutter-behaviour-path.c: * clutter/clutter-behaviour-scale.c: Reimplement the alpha_notify functions using the new foreach function and, where possible, by directly iterating on the actors: this shaves off the number of recalculations of the property/alpha values, and the number of functions.
115 lines
4 KiB
C
115 lines
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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* Authored By Matthew Allum <mallum@openedhand.com>
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* Jorn Baayen <jorn@openedhand.com>
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* Emmanuele Bassi <ebassi@openedhand.com>
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*
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* Copyright (C) 2006 OpenedHand
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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, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef _HAVE_CLUTTER_BEHAVIOUR_H
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#define _HAVE_CLUTTER_BEHAVIOUR_H
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#include <glib-object.h>
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#include <clutter/clutter-alpha.h>
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G_BEGIN_DECLS
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#define CLUTTER_TYPE_BEHAVIOUR clutter_behaviour_get_type()
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#define CLUTTER_BEHAVIOUR(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST ((obj), \
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CLUTTER_TYPE_BEHAVIOUR, ClutterBehaviour))
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#define CLUTTER_BEHAVIOUR_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST ((klass), \
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CLUTTER_TYPE_BEHAVIOUR, ClutterBehaviourClass))
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#define CLUTTER_IS_BEHAVIOUR(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE ((obj), \
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CLUTTER_TYPE_BEHAVIOUR))
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#define CLUTTER_IS_BEHAVIOUR_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE ((klass), \
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CLUTTER_TYPE_BEHAVIOUR))
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#define CLUTTER_BEHAVIOUR_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS ((obj), \
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CLUTTER_TYPE_BEHAVIOUR, ClutterBehaviourClass))
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typedef struct _ClutterBehaviour ClutterBehaviour;
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typedef struct _ClutterBehaviourPrivate ClutterBehaviourPrivate;
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typedef struct _ClutterBehaviourClass ClutterBehaviourClass;
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/**
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* ClutterBehaviourFunction:
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* @behaviour: the #ClutterBehaviour
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* @actor: an actor driven by @behaviour
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* @data: optional data passed to the function
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*
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* This function is passed to clutter_behaviour_foreach_actor() and
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* will be called for each actor driven by @behaviour.
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*/
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typedef void (*ClutterBehaviourForeachFunc) (ClutterBehaviour *behaviour,
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ClutterActor *actor,
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gpointer data);
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struct _ClutterBehaviour
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{
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/*< private >*/
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GObject parent;
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ClutterBehaviourPrivate *priv;
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};
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struct _ClutterBehaviourClass
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{
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GObjectClass parent_class;
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/* vfunc, not signal */
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void (*alpha_notify) (ClutterBehaviour *behave,
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guint32 alpha_value);
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/* padding, for future expansion */
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void (*_clutter_behaviour1) (void);
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void (*_clutter_behaviour2) (void);
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void (*_clutter_behaviour3) (void);
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void (*_clutter_behaviour4) (void);
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void (*_clutter_behaviour5) (void);
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void (*_clutter_behaviour6) (void);
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};
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GType clutter_behaviour_get_type (void) G_GNUC_CONST;
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void clutter_behaviour_apply (ClutterBehaviour *behave,
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ClutterActor *actor);
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void clutter_behaviour_remove (ClutterBehaviour *behave,
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ClutterActor *actor);
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void clutter_behaviour_actors_foreach (ClutterBehaviour *behave,
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ClutterBehaviourForeachFunc func,
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gpointer data);
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GSList * clutter_behaviour_get_actors (ClutterBehaviour *behave);
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ClutterAlpha *clutter_behaviour_get_alpha (ClutterBehaviour *behave);
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void clutter_behaviour_set_alpha (ClutterBehaviour *behave,
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ClutterAlpha *alpha);
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G_END_DECLS
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#endif
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