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#ifndef INCLUDED_CANVAS_IMAGECACHEDPRIMITIVE_HXX
#define INCLUDED_CANVAS_IMAGECACHEDPRIMITIVE_HXX

#include <canvas/rendering/icachedprimitive.hxx>

#include <boost/shared_ptr.hpp>


namespace canvas
{
    /** Objects with this interface are returned from every Image
        render operation.

        These objects can be used to implement the
        rendering::XCachedPrimitive interface, which in turn caches
        render state and objects to facilitate quick redraws.

        Derived from ICachedPrimitive, to add the setImage() method
        (which, strictly speaking, is a technicality, because Image
        cannot create objects with a shared_ptr to itself).
     */
    struct ImageCachedPrimitive : public ICachedPrimitive
    {
        virtual void setImage( const ::boost::shared_ptr< class Image >& rTargetImage ) = 0;
    };

    typedef ::boost::shared_ptr< ImageCachedPrimitive > ImageCachedPrimitiveSharedPtr;
}

#endif /* INCLUDED_CANVAS_IMAGECACHEDPRIMITIVE_HXX */

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