fontmanager.h

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/*****************************************************************************************
 * SGCT                                                                                  *
 * Simple Graphics Cluster Toolkit                                                       *
 *                                                                                       *
 * Copyright (c) 2012-2026                                                               *
 * For conditions of distribution and use, see copyright notice in LICENSE.md            *
 ****************************************************************************************/
 
#ifndef __SGCT__FONTMANAGER__H__
#define __SGCT__FONTMANAGER__H__
 
#ifdef SGCT_HAS_TEXT
 
#include <sgct/sgctexports.h>
 
#include <sgct/font.h>
#include <sgct/math.h>
#include <sgct/shaderprogram.h>
#include <map>
#include <memory>
#include <string>
#include <utility>
 
typedef struct FT_LibraryRec_* FT_Library;
 
namespace sgct::text {
 
class Font;

class SGCT_EXPORT FontManager {
public:
    static FontManager& instance();
    static void destroy();

    ~FontManager();
 
    FontManager(const FontManager&) = delete;
    FontManager(FontManager&&) = delete;
    FontManager& operator=(const FontManager&) = delete;
    FontManager& operator=(FontManager&&) = delete;

    bool addFont(std::string name, std::string file, bool isAbsolutePath = false);

    Font* font(const std::string& name, unsigned int height = 10);

    void bindShader(const mat4& mvp, const vec4& color, int texture) const;
 
private:
    FontManager();

    std::unique_ptr<Font> createFont(const std::string& name, int height);
 
    static FontManager* _instance;
 
    FT_Library _library;

    std::map<std::string, std::string> _fontPaths;

    std::map<std::pair<std::string, unsigned int>, std::unique_ptr<Font>> _fontMap;
 
    ShaderProgram _shader;
    int _mvpLocation = -1;
    int _colorLocation = -1;
    int _textureLocation = -1;
};
 
} // namespace sgct::text
 
#endif // SGCT_HAS_TEXT
#endif // __SGCT__FONTMANAGER__H__