gnome-shell/src/st/st-texture-cache.h

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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/*
* st-texture-cache.h: Object for loading and caching images as textures
*
* Copyright 2009, 2010 Red Hat, Inc.
* Copyright 2010, Maxim Ermilov
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 2.1 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
* more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __ST_TEXTURE_CACHE_H__
#define __ST_TEXTURE_CACHE_H__
#if !defined(ST_H_INSIDE) && !defined(ST_COMPILATION)
#error "Only <st/st.h> can be included directly.h"
#endif
#include <gio/gio.h>
#include <gtk/gtk.h>
#include <clutter/clutter.h>
#include <st/st-types.h>
#include <st/st-theme-node.h>
#define ST_TYPE_TEXTURE_CACHE (st_texture_cache_get_type ())
G_DECLARE_FINAL_TYPE (StTextureCache, st_texture_cache,
ST, TEXTURE_CACHE, GObject)
typedef struct _StTextureCachePrivate StTextureCachePrivate;
struct _StTextureCache
{
GObject parent;
StTextureCachePrivate *priv;
};
typedef enum {
ST_TEXTURE_CACHE_POLICY_NONE,
ST_TEXTURE_CACHE_POLICY_FOREVER
} StTextureCachePolicy;
StTextureCache* st_texture_cache_get_default (void);
ClutterActor *
st_texture_cache_load_sliced_image (StTextureCache *cache,
GFile *file,
gint grid_width,
gint grid_height,
gint scale,
GFunc load_callback,
gpointer user_data);
ClutterActor *st_texture_cache_bind_cairo_surface_property (StTextureCache *cache,
GObject *object,
const char *property_name);
ClutterActor *st_texture_cache_load_gicon (StTextureCache *cache,
StThemeNode *theme_node,
GIcon *icon,
gint size,
gint scale);
ClutterActor *st_texture_cache_load_file_async (StTextureCache *cache,
GFile *file,
int available_width,
int available_height,
int scale);
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CoglTexture *st_texture_cache_load_file_to_cogl_texture (StTextureCache *cache,
GFile *file,
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gint scale);
cairo_surface_t *st_texture_cache_load_file_to_cairo_surface (StTextureCache *cache,
GFile *file,
gint scale);
/**
* StTextureCacheLoader: (skip)
* @cache: a #StTextureCache
* @key: Unique identifier for this texture
* @data: Callback user data
* @error: A #GError
*
* See st_texture_cache_load(). Implementations should return a
* texture handle for the given key, or set @error.
*
*/
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typedef CoglTexture * (*StTextureCacheLoader) (StTextureCache *cache, const char *key, void *data, GError **error);
CoglTexture * st_texture_cache_load (StTextureCache *cache,
const char *key,
StTextureCachePolicy policy,
StTextureCacheLoader load,
void *data,
GError **error);
#endif /* __ST_TEXTURE_CACHE_H__ */