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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef ASH_APP_LIST_ICON_CACHE_H_
#define ASH_APP_LIST_ICON_CACHE_H_
#pragma once
#include <map>
#include <string>
#include "base/basictypes.h"
#include "third_party/skia/include/core/SkBitmap.h"
namespace gfx {
class Size;
}
namespace ash {
// IconCache stores processed image, keyed by the source image and desired size.
class IconCache {
public:
static void CreateInstance();
static void DeleteInstance();
static IconCache* GetInstance();
void MarkAllEntryUnused();
void PurgeAllUnused();
bool Get(const SkBitmap& src,
const gfx::Size& size,
SkBitmap* processed);
void Put(const SkBitmap& src,
const gfx::Size& size,
const SkBitmap& processed);
private:
struct Item {
SkBitmap image;
bool used;
};
typedef std::map<std::string, Item> Cache;
IconCache();
~IconCache();
static IconCache* instance_;
Cache cache_;
DISALLOW_COPY_AND_ASSIGN(IconCache);
};
} // namespace ash
#endif // ASH_APP_LIST_ICON_CACHE_H_
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