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132 lines
4.8 KiB
C
132 lines
4.8 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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* Tomas Frydrych <tf@openedhand.com>
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*
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* Copyright (C) 2006, 2007, 2008 OpenedHand
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* Copyright (C) 2009 Intel Corp.
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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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#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_ALPHA_H__
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#define __CLUTTER_ALPHA_H__
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#include <clutter/clutter-timeline.h>
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#include <clutter/clutter-types.h>
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G_BEGIN_DECLS
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#define CLUTTER_TYPE_ALPHA (clutter_alpha_get_type ())
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#define CLUTTER_ALPHA(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_ALPHA, ClutterAlpha))
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#define CLUTTER_ALPHA_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CLUTTER_TYPE_ALPHA, ClutterAlphaClass))
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#define CLUTTER_IS_ALPHA(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CLUTTER_TYPE_ALPHA))
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#define CLUTTER_IS_ALPHA_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CLUTTER_TYPE_ALPHA))
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#define CLUTTER_ALPHA_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), CLUTTER_TYPE_ALPHA, ClutterAlphaClass))
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typedef struct _ClutterAlphaClass ClutterAlphaClass;
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typedef struct _ClutterAlphaPrivate ClutterAlphaPrivate;
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/**
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* ClutterAlphaFunc:
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* @alpha: a #ClutterAlpha
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* @user_data: user data passed to the function
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*
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* A function returning a value depending on the position of
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* the #ClutterTimeline bound to @alpha.
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*
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* Return value: a floating point value
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*
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* Since: 0.2
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*/
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typedef gdouble (*ClutterAlphaFunc) (ClutterAlpha *alpha,
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gpointer user_data);
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/**
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* ClutterAlpha:
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*
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* #ClutterAlpha combines a #ClutterTimeline and a function.
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* The contents of the #ClutterAlpha structure are private and should
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* only be accessed using the provided API.
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*
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* Since: 0.2
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*/
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struct _ClutterAlpha
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{
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/*< private >*/
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GInitiallyUnowned parent;
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ClutterAlphaPrivate *priv;
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};
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/**
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* ClutterAlphaClass:
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*
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* Base class for #ClutterAlpha
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*
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* Since: 0.2
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*/
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struct _ClutterAlphaClass
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{
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/*< private >*/
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GInitiallyUnownedClass parent_class;
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void (*_clutter_alpha_1) (void);
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void (*_clutter_alpha_2) (void);
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void (*_clutter_alpha_3) (void);
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void (*_clutter_alpha_4) (void);
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void (*_clutter_alpha_5) (void);
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};
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GType clutter_alpha_get_type (void) G_GNUC_CONST;
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ClutterAlpha * clutter_alpha_new (void);
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ClutterAlpha * clutter_alpha_new_full (ClutterTimeline *timeline,
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gulong mode);
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ClutterAlpha * clutter_alpha_new_with_func (ClutterTimeline *timeline,
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ClutterAlphaFunc func,
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gpointer data,
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GDestroyNotify destroy);
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gdouble clutter_alpha_get_alpha (ClutterAlpha *alpha);
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void clutter_alpha_set_func (ClutterAlpha *alpha,
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ClutterAlphaFunc func,
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gpointer data,
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GDestroyNotify destroy);
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void clutter_alpha_set_closure (ClutterAlpha *alpha,
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GClosure *closure);
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void clutter_alpha_set_timeline (ClutterAlpha *alpha,
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ClutterTimeline *timeline);
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ClutterTimeline *clutter_alpha_get_timeline (ClutterAlpha *alpha);
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void clutter_alpha_set_mode (ClutterAlpha *alpha,
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gulong mode);
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gulong clutter_alpha_get_mode (ClutterAlpha *alpha);
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gulong clutter_alpha_register_func (ClutterAlphaFunc func,
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gpointer data);
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gulong clutter_alpha_register_closure (GClosure *closure);
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G_END_DECLS
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#endif /* __CLUTTER_ALPHA_H__ */
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