bitmap.h
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bitmap.h
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	struct SDL_Surface;

	struct BitmapData{
	BitmapData():
	surface(0),
	clip_left(0),
	clip_right(0),
	clip_top(0),
	clip_bottom(0){}

	inline SDL_Surface * getSurface() const {
	return surface;
	}

	inline void setClip(int left, int top, int right, int bottom) const {
	clip_left = left;
	clip_right = right;
	clip_top = top;
	clip_bottom = bottom;
	}

	bool isClipped(int x, int y) const {
	return (x < clip_left \|\|
	y < clip_top \|\|
	x >= clip_right \|\|
	y >= clip_bottom);
	}

	void setSurface(SDL_Surface * surface);

	SDL_Surface * surface;
	mutable int clip_left, clip_right;
	mutable int clip_top, clip_bottom;
	};