imagefont.hpp

// SPDX-License-Identifier: LGPL-2.1-or-later OR BSD-3-Clause
// SPDX-FileCopyrightText: 2004 - 2008 Olof Naessén and Per Larsson
// SPDX-FileCopyrightText: 2013 - 2026 Fifengine contributors
 
#ifndef INCLUDE_FIFECHAN_IMAGEFONT_HPP_
#define INCLUDE_FIFECHAN_IMAGEFONT_HPP_
 
#include <array>
#include <string>
 
#include "fifechan/font.hpp"
#include "fifechan/platform.hpp"
#include "fifechan/rectangle.hpp"
 
namespace fcn
{
    class Color;
    class Graphics;
    class Image;

    class FIFEGUI_API ImageFont : public Font
    {
    public:
        ImageFont(std::string const & filename, std::string const & glyphs);

        ImageFont(Image* image, std::string const & glyphs);

        explicit ImageFont(std::string const & filename, unsigned char glyphsFrom = 32, unsigned char glyphsTo = 126);
 
        ~ImageFont() override;
 
        ImageFont(ImageFont const &)            = delete;
        ImageFont& operator=(ImageFont const &) = delete;
        ImageFont(ImageFont&&)                  = delete;
        ImageFont& operator=(ImageFont&&)       = delete;

        virtual int drawGlyph(Graphics* graphics, unsigned char glyph, int x, int y);

        virtual void setRowSpacing(int spacing);

        virtual int getRowSpacing();

        virtual void setGlyphSpacing(int spacing);

        virtual int getGlyphSpacing();

        virtual int getWidth(unsigned char glyph) const;
 
        // Inherited from Font
 
        int getWidth(std::string const & text) const override;
 
        void drawString(Graphics* graphics, std::string const & text, int x, int y) override;
 
        int getHeight() const override;
 
        int getStringIndexAt(std::string const & text, int x) const override;
 
    protected:
        Rectangle scanForGlyph(unsigned char glyph, int x, int y, Color const & separator);

        std::array<Rectangle, 256> mGlyph;

        int mHeight{0};

        int mGlyphSpacing{0};

        int mRowSpacing{0};

        Image* mImage{nullptr};

        std::string mFilename;
    };
} // namespace fcn
 
#endif // INCLUDE_FIFECHAN_IMAGEFONT_HPP_