Bitmap.hpp

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#ifndef GOSU_BITMAP_HPP
#define GOSU_BITMAP_HPP

#include <Gosu/Color.hpp>
#include <Gosu/Fwd.hpp>
#include <Gosu/GraphicsBase.hpp>
#include <boost/scoped_ptr.hpp>
#include <string>
#include <vector>

namespace Gosu
{
    class Bitmap
    {
        unsigned w, h;
        std::vector<Color> pixels;

    public:
        Bitmap();

        unsigned width() const { return w; }
        unsigned height() const { return h; }

        void swap(Bitmap& other);

        void resize(unsigned width, unsigned height, Color c = Color::NONE);

        void fill(Color c);
        void replace(Color oldColor, Color newColor);

        Color getPixel(unsigned x, unsigned y) const { return pixels[y * w + x]; }

        void setPixel(unsigned x, unsigned y, Color c) { pixels[y * w + x] = c; }

        void insert(const Bitmap& source, int x, int y);

        void insert(const Bitmap& source, int x, int y, unsigned srcX,
            unsigned srcY, unsigned srcWidth, unsigned srcHeight);
        
        const unsigned* data() const { return reinterpret_cast<const unsigned*>(&pixels[0]); }
        unsigned* data() { return reinterpret_cast<unsigned*>(&pixels[0]); }
    };

    Reader loadFromBMP(Bitmap& bmp, Reader reader);
    Writer saveToBMP(const Bitmap& bmp, Writer writer);
    Reader loadFromPNG(Bitmap& bmp, Reader reader);
    Writer saveToPNG(const Bitmap& bmp, Writer writer);

    void applyColorKey(Bitmap& bitmap, Color key);

    void applyBorderFlags(Bitmap& dest, const Bitmap& source,
        unsigned srcX, unsigned srcY, unsigned srcWidth, unsigned srcHeight,
        unsigned borderFlags);  

    // Still to be moved around & undocumented, beware! (TODO)
    Bitmap quickLoadBitmap(const std::wstring& filename);
}

#endif

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