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_
 
#include <vector>
 
#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_