font_texture.h

// © Joseph Cameron - MIT License
 
#ifndef GDK_GRAPHICS_EXT_FONT_TEXTURE_H
#define GDK_GRAPHICS_EXT_FONT_TEXTURE_H
 
#include <gdk/graphics/context.h>
#include <gdk/graphics/ext/font.h>
#include <gdk/graphics/texture.h>
#include <gdk/graphics/texture_data.h>
 
#include <cstddef>
#include <memory>
 
namespace gdk::graphics::ext {
    class font_texture final {
    public:
        void upload();

        [[nodiscard]] texture_ptr_type texture() const;

        [[nodiscard]] std::size_t uploaded_atlas_generation() const;

        [[nodiscard]] const std::shared_ptr<font> &typeface() const;
 
        font_texture(context_ptr_type aContext, std::shared_ptr<font> aFont);
 
    private:
        context_ptr_type m_pContext;
        std::shared_ptr<font> m_pFont;
        texture_ptr_type m_pTexture;
        std::size_t m_UploadedAtlasGeneration = 0;
        texture_data::channel_data m_Rgba;
    };
}
 
#endif