piegraph.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_WIDGETS_PIEGRAPH_HPP_
#define INCLUDE_FIFECHAN_WIDGETS_PIEGRAPH_HPP_
 
// Standard library includes
#include <vector>
 
// Project headers (subdirs before local)
#include "fifechan/point.hpp"
#include "fifechan/widget.hpp"
 
namespace fcn
{
    class Graphics;

    class FIFEGUI_API PieGraph : public Widget
    {
        public:
            PieGraph();

            explicit PieGraph(Point center);
 
            ~PieGraph() override = default;
 
            PieGraph(PieGraph const &)            = delete;
            PieGraph& operator=(PieGraph const &) = delete;
            PieGraph(PieGraph&&)                  = delete;
            PieGraph& operator=(PieGraph&&)       = delete;

            void setCenterX(int x);

            void setCenterY(int y);

            void setCenter(int x, int y);

            int getCenterX() const;

            int getCenterY() const;

            void setCenter(Point const & center);

            Point const & getCenter() const;

            void setRadius(int radius);

            int getRadius() const;

            void addSegment(int startAngle, int stopAngle, Color const & color);

            void clearSegments();

            void setOpaque(bool opaque);

            bool isOpaque() const;

            void draw(Graphics* graphics) override;
 
        protected:
            bool m_opaque;

            Point m_center;

            int m_radius;

            struct PieGraphSegment
            {
                    int startAngle{};

                    int stopAngle{};

                    Color color;
            };

            std::vector<PieGraphSegment> m_segments;
    };
}; // namespace fcn
 
#endif // INCLUDE_FIFECHAN_WIDGETS_PIEGRAPH_HPP_