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#ifndef _VCLCANVAS_SPRITESURFACE_HXX
#define _VCLCANVAS_SPRITESURFACE_HXX

#include <sal/config.h>

#include "cairo_sprite.hxx"

class Point;
class Size;
class Rectangle;

namespace cairocanvas
{
    /* Definition of SpriteSurface interface */
    
    class SpriteSurface
    {
    public:
        virtual ~SpriteSurface() {}

        // call this when XSprite::show() is called
        virtual void showSprite( const Sprite::ImplRef& sprite ) = 0;

        // call this when XSprite::hide() is called
        virtual void hideSprite( const Sprite::ImplRef& sprite ) = 0;

        // call this when XSprite::move() is called
        virtual void moveSprite( const Sprite::ImplRef&	sprite, 
                                 const Point& 			rOldPos,
                                 const Point& 			rNewPos,
                                 const Size& 			rSpriteSize ) = 0;

        // call this when some part of your sprite has changed. That
        // includes show/hide´, i.e. for show, both showSprite and
        // updateSprite must be called.
        virtual void updateSprite( const Sprite::ImplRef& 	sprite, 
                                   const Point& 			rPos,
                                   const Rectangle& 		rUpdateArea ) = 0;
        
    };
}

#endif /* _VCLCANVAS_SPRITESURFACE_HXX */

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