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b985c4035e
ClutterTexture is full of side effects that have been picked up over the years; they make improving ClutterTexture harder than necessary, as well as making subclassing impossible without introducing weird behaviours in the child classes as well. Since Clutter 1.10 we have the ClutterImage content type, which is side-effects free, given that it just paints texture data using the state of the actor. Sadly, we still have subclasses of ClutterTexture, both deprecated and not, so we cannot deprecate ClutterTexture right out; the type and structures will still be available, like we do for ClutterGroup, but the whole API should be moved to the deprecated section, waiting for the time in which we can get rid of it all.
129 lines
3.9 KiB
C
129 lines
3.9 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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*
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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 2.1 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_TEXTURE_H__
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#define __CLUTTER_TEXTURE_H__
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#include <cogl/cogl.h>
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#include <clutter/clutter-actor.h>
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G_BEGIN_DECLS
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#define CLUTTER_TYPE_TEXTURE (clutter_texture_get_type ())
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#define CLUTTER_TEXTURE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_TEXTURE, ClutterTexture))
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#define CLUTTER_TEXTURE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CLUTTER_TYPE_TEXTURE, ClutterTextureClass))
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#define CLUTTER_IS_TEXTURE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CLUTTER_TYPE_TEXTURE))
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#define CLUTTER_IS_TEXTURE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CLUTTER_TYPE_TEXTURE))
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#define CLUTTER_TEXTURE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), CLUTTER_TYPE_TEXTURE, ClutterTextureClass))
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/**
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* ClutterTextureError:
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* @CLUTTER_TEXTURE_ERROR_OUT_OF_MEMORY: OOM condition
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* @CLUTTER_TEXTURE_ERROR_NO_YUV: YUV operation attempted but no YUV support
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* found
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* @CLUTTER_TEXTURE_ERROR_BAD_FORMAT: The requested format for
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* clutter_texture_set_from_rgb_data or
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* clutter_texture_set_from_yuv_data is unsupported.
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*
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* Error enumeration for #ClutterTexture
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*
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* Since: 0.4
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*/
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typedef enum {
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CLUTTER_TEXTURE_ERROR_OUT_OF_MEMORY,
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CLUTTER_TEXTURE_ERROR_NO_YUV,
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CLUTTER_TEXTURE_ERROR_BAD_FORMAT
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} ClutterTextureError;
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/**
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* CLUTTER_TEXTURE_ERROR:
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*
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* Error domain for #ClutterTexture errors
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*
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* Since: 0.4
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*/
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#define CLUTTER_TEXTURE_ERROR (clutter_texture_error_quark ())
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GQuark clutter_texture_error_quark (void);
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typedef struct _ClutterTexture ClutterTexture;
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typedef struct _ClutterTextureClass ClutterTextureClass;
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typedef struct _ClutterTexturePrivate ClutterTexturePrivate;
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/**
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* ClutterTexture:
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*
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* The #ClutterTexture structure contains only private data
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* and should be accessed using the provided API
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*
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* Since: 0.1
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*/
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struct _ClutterTexture
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{
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/*< private >*/
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ClutterActor parent;
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ClutterTexturePrivate *priv;
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};
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/**
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* ClutterTextureClass:
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* @size_change: handler for the #ClutterTexture::size-change signal
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* @pixbuf_change: handler for the #ClutterTexture::pixbuf-change signal
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* @load_finished: handler for the #ClutterTexture::load-finished signal
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*
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* The #ClutterTextureClass structure contains only private data
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*
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* Since: 0.1
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*/
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struct _ClutterTextureClass
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{
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/*< private >*/
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ClutterActorClass parent_class;
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/*< public >*/
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void (* size_change) (ClutterTexture *texture,
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gint width,
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gint height);
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void (* pixbuf_change) (ClutterTexture *texture);
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void (* load_finished) (ClutterTexture *texture,
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const GError *error);
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/*< private >*/
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/* padding, for future expansion */
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void (*_clutter_texture1) (void);
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void (*_clutter_texture2) (void);
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void (*_clutter_texture3) (void);
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void (*_clutter_texture4) (void);
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void (*_clutter_texture5) (void);
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};
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GType clutter_texture_get_type (void) G_GNUC_CONST;
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G_END_DECLS
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#endif /* __CLUTTER_TEXTURE_H__ */
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