bitmap-font.hpp

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/*
 * Copyright (C) 2023  Christopher J. Howard
 *
 * This file is part of Antkeeper source code.
 *
 * Antkeeper source code is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Antkeeper source code is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Antkeeper source code.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef ANTKEEPER_TYPE_BITMAP_FONT_HPP
#define ANTKEEPER_TYPE_BITMAP_FONT_HPP
 
#include <engine/type/font.hpp>
#include <engine/type/bitmap-glyph.hpp>
#include <engine/gl/texture.hpp>
#include <unordered_map>
 
namespace type {
 
class bitmap_font: public font
{
public:
    explicit bitmap_font(const font_metrics& metrics);
    
    bitmap_font();
    
    virtual ~bitmap_font() = default;
    
    virtual bool contains(char32_t code) const;
    
    bitmap_glyph& insert(char32_t code);
    
    void remove(char32_t code);
    
    void clear();
    
    bool pack(bool resize = true);
    
    void unpack(bool resize = true);
    
    virtual const glyph_metrics& get_glyph_metrics(char32_t code) const;
    
    [[nodiscard]] const bitmap_glyph* get_glyph(char32_t code) const;
    [[nodiscard]] bitmap_glyph* get_glyph(char32_t code);
    
    
    [[nodiscard]] inline const std::shared_ptr<gl::texture_2d>& get_texture() const noexcept
    {
        return m_texture;
    }
    
private:
    std::unordered_map<char32_t, bitmap_glyph> m_glyphs;
    std::shared_ptr<gl::texture_2d> m_texture;
    std::shared_ptr<gl::sampler> m_sampler;
};
 
} // namespace type
 
#endif // ANTKEEPER_TYPE_BITMAP_FONT_HPP