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#ifndef _CPPCANVAS_SPRITECANVAS_HXX
#define _CPPCANVAS_SPRITECANVAS_HXX

#include <sal/types.h>
#include <osl/diagnose.h>
#include <basegfx/vector/b2dsize.hxx>

#include <boost/shared_ptr.hpp>


#include <cppcanvas/bitmapcanvas.hxx>
#include <cppcanvas/sprite.hxx>
#include <cppcanvas/customsprite.hxx>

namespace com { namespace sun { namespace star { namespace rendering 
{
    class  XSpriteCanvas;
} } } }


/* Definition of SpriteCanvas */

namespace cppcanvas
{
    class SpriteCanvas;

    // forward declaration, since cloneSpriteCanvas() also references SpriteCanvas
    typedef ::boost::shared_ptr< ::cppcanvas::SpriteCanvas > SpriteCanvasSharedPtr;

    /** SpriteCanvas interface
     */
    class SpriteCanvas : public virtual BitmapCanvas
    {
    public:
        virtual bool					updateScreen( bool bUpdateAll ) const = 0;
        
        virtual CustomSpriteSharedPtr 	createCustomSprite( const ::basegfx::B2DSize& ) const = 0;
        virtual SpriteSharedPtr 		createClonedSprite( const SpriteSharedPtr& ) const = 0;

        // shared_ptr does not allow for covariant return types
        SpriteCanvasSharedPtr			cloneSpriteCanvas() const
        {
            SpriteCanvasSharedPtr p( ::boost::dynamic_pointer_cast< SpriteCanvas >(this->clone()) );
            OSL_ENSURE(p.get(), "SpriteCanvas::cloneSpriteCanvas(): dynamic cast failed");
            return p;
        }

        virtual ::com::sun::star::uno::Reference< 
            ::com::sun::star::rendering::XSpriteCanvas > 	getUNOSpriteCanvas() const = 0;
    };

}

#endif /* _CPPCANVAS_SPRITECANVAS_HXX */
