FontCache.h

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#ifndef __FONTCACHE_H__
#define __FONTCACHE_H__
 
#include <string>
#include <map>
#include "SDL.h"
#include "SDL_ttf.h"
 
namespace FontCache {
 
struct FontCacheKey {
    std::string filename;  // Font filename (e.g., "DejaVuSans.ttf")
    int style;             // Font style (PFS_Normal, PFS_Bold, PFS_Italic, etc.)
    int size;              // Point size (e.g., 24)
 
    bool operator<(const FontCacheKey& other) const;
 
    bool operator==(const FontCacheKey& other) const;
};
 
struct CachedTTFFont {
    TTF_Font* ttf_font;  // Shared SDL_TTF font object
    int ref_count;       // Number of PlatformFont objects using this font
 
    CachedTTFFont(TTF_Font* f) : ttf_font(f), ref_count(1) {}
};
 
class FontCacheManager {
public:
    static FontCacheManager& GetInstance();
 
    TTF_Font* GetFont(const FontCacheKey& key, const std::string& full_path);
 
    void ReleaseFont(const FontCacheKey& key);
 
    void GetStats(int& unique_fonts, int& total_refs, int& cache_hits, int& cache_misses);
 
    void PrintCache();
 
private:
    FontCacheManager() : mCacheHits(0), mCacheMisses(0) {}
 
    ~FontCacheManager();
 
    FontCacheManager(const FontCacheManager&) = delete;
    FontCacheManager& operator=(const FontCacheManager&) = delete;
 
    std::map<FontCacheKey, CachedTTFFont> mCache;
 
    int mCacheHits;    // Number of successful cache lookups
    int mCacheMisses;  // Number of new font loads
};
 
} // namespace FontCache
 
#endif // __FONTCACHE_H__