texture_cache.h

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#ifndef TILE_MAP_TEXTURE_CACHE_H_
#define TILE_MAP_TEXTURE_CACHE_H_

#include <QCache>

#include <tile_map/image_cache.h>

namespace tile_map
{
  class Texture
  {
  public:
    Texture(int32_t texture_id, size_t hash);
    ~Texture();

    const int32_t id;
    const size_t url_hash;

    bool failed;
  };
  typedef boost::shared_ptr<Texture> TexturePtr;

  class TextureCache
  {
  public:
    explicit TextureCache(ImageCachePtr image_cache, size_t size = 512);

    TexturePtr GetTexture(size_t url_hash, const QString& url, bool& failed);
    void AddTexture(const TexturePtr& texture);

    void Clear();
    
  private:
    QCache<size_t, TexturePtr> cache_;

    ImageCachePtr image_cache_;
  };
  typedef boost::shared_ptr<TextureCache> TextureCachePtr;
}

#endif  // TILE_MAP_TEXTURE_CACHE_H_