FontGlyphManager.hpp

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//
//  CeresEngine - A game development framework
//
//  Created by Rogiel Sulzbach.
//  Copyright (c) 2018-2022 Rogiel Sulzbach. All rights reserved.
//
 
#pragma once
 
#include "Forward.hpp"
#include "CeresEngine/Texture/Forward.hpp"
 
#include "CeresEngine/DataTypes.hpp"
 
#include "CeresEngine/Foundation/Container/Map.hpp"
 
#include "CeresEngine/Math/Rect.hpp"
#include "CeresEngine/Math/Vector.hpp"
#include "CeresEngine/Resource/ResourceHandle.hpp"
#include "CeresEngine/Texture/TextureAtlasLayout.hpp"
 
namespace CeresEngine {
 
    class FontGlyphManager {
    private:
        struct FontTextureInfo {
            HTexture texture;
            TextureAtlasLayout layout;
        };
        Vector<FontTextureInfo> mTextures;
 
        struct GlyphKey {
            UInt32 glyph;
            SPtr<Font> font;
            Vector2 size;
        };
 
        struct GlyphInfo {
            UInt32 textureID;
            Rect2 uv;
        };
 
        HashMap<GlyphKey, GlyphInfo> mGlyphData;
 
    public:
        explicit FontGlyphManager() = default;
        ~FontGlyphManager() = default;
 
    public:
    private:
        void fillGlyph(UInt32 glyph, const SPtr<Font>& font, const Vector2& size);
    };
 
} // namespace CeresEngine