ImageData.hpp

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#pragma once

#include <Gosu/Fwd.hpp>
#include <Gosu/Color.hpp>
#include <Gosu/GraphicsBase.hpp>
#include <Gosu/Platform.hpp>
#include <memory>

namespace Gosu
{
    struct GLTexInfo
    {
        int tex_name;
        double left, right, top, bottom;
    };

    class ImageData
    {
        // Non-copyable
        ImageData(const ImageData&);
        ImageData& operator=(const ImageData&);
        
    public:
        ImageData() {}
        
        virtual ~ImageData() {}

        virtual int width() const = 0;
        
        virtual int height() const = 0;

        virtual void draw(double x1, double y1, Color c1,
            double x2, double y2, Color c2,
            double x3, double y3, Color c3,
            double x4, double y4, Color c4,
            ZPos z, AlphaMode mode) const = 0;

        virtual const GLTexInfo* gl_tex_info() const = 0;
        
        virtual Bitmap to_bitmap() const = 0;
        
        virtual std::unique_ptr<ImageData> subimage(int x, int y, int width, int height) const = 0;
        
        virtual void insert(const Bitmap& bitmap, int x, int y) = 0;
    };
}