backends/sdl3/graphics.hpp

// SPDX-License-Identifier: LGPL-2.1-or-later OR BSD-3-Clause
// SPDX-FileCopyrightText: 2004 - 2008 Olof Naessén and Per Larsson
// SPDX-FileCopyrightText: 2016 - 2019 Gwilherm Baudic
// SPDX-FileCopyrightText: 2013 - 2026 Fifengine contributors
 
#ifndef INCLUDE_FIFECHAN_BACKENDS_SDL_GRAPHICS_HPP_
#define INCLUDE_FIFECHAN_BACKENDS_SDL_GRAPHICS_HPP_
 
// Standard library includes
#include <memory>
#include <string>
 
// Platform config include
#include "fifechan/platform.hpp"
 
// Third-party library includes
#include <SDL3/SDL.h>
 
// Project headers (subdirs before local)
#include "fifechan/color.hpp"
#include "fifechan/graphics.hpp"
 
namespace fcn
{
    class Image;
    class Rectangle;
} // namespace fcn
 
namespace fcn::sdl3
{
    class FIFEGUI_EXT_API Graphics : public fcn::Graphics
    {
        public:
            Graphics();
 
            ~Graphics() override;

            virtual void setTarget(SDL_Renderer* renderer, int width, int height);

            virtual SDL_Renderer* getRenderTarget() const;

            virtual void drawSDLTexture(SDL_Texture* texture, SDL_FRect source, SDL_FRect destination);
 
            // Inherited from Graphics
 
            void _beginDraw() override;
            void _endDraw() override;
            bool pushClipArea(fcn::Rectangle area) override;
            void popClipArea() override;
            void drawImage(
                fcn::Image const * image, int srcX, int srcY, int dstX, int dstY, int width, int height) override;
            void drawPoint(int x, int y) override;
            void drawLine(int x1, int y1, int x2, int y2) override;
            void drawLine(int x1, int y1, int x2, int y2, unsigned int width) override;
            void drawRoundStroke(int x1, int y1, int x2, int y2, unsigned int width) override;
 
            void drawRectangle(Rectangle const & rectangle) override;
            void fillRectangle(Rectangle const & rectangle) override;
 
            void drawPolyLine(PointVector const & points, unsigned int width) override;
            void drawBezier(PointVector const & points, int segments, unsigned int width) override;
 
            void drawCircle(Point const & center, unsigned int radius) override;
            void drawFillCircle(Point const & center, unsigned int radius) override;
            void drawCircleSegment(Point const & center, unsigned int radius, int startAngle, int endAngle) override;
            void drawFillCircleSegment(
                Point const & center, unsigned int radius, int startAngle, int endAngle) override;
 
            void setColor(Color const & color) override;
            Color const & getColor() const override;
            std::shared_ptr<Font> createFont(std::string const & filename, int size) override;
 
        protected:
            void drawHorizontalLine(int x1, int y, int x2);

            void drawVerticalLine(int x, int y1, int y2);

            void saveRenderColor();

            void restoreRenderColor();

            SDL_Renderer* mRenderTarget{};

            int mWidth = 0;

            int mHeight = 0;

            Color mColor;

            Uint8 r{};
            Uint8 g{};
            Uint8 b{};
            Uint8 a{};

            bool mAlpha;
    };
} // namespace fcn::sdl3
 
#endif // INCLUDE_FIFECHAN_BACKENDS_SDL_GRAPHICS_HPP_