xref: /aoo41x/main/drawinglayer/inc/drawinglayer/primitive2d/invertprimitive2d.hxx (revision 4f506f19)

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#ifndef INCLUDED_DRAWINGLAYER_PRIMITIVE2D_INVERTPRIMITIVE2D_HXX
#define INCLUDED_DRAWINGLAYER_PRIMITIVE2D_INVERTPRIMITIVE2D_HXX

#include <drawinglayer/drawinglayerdllapi.h>
#include <drawinglayer/primitive2d/groupprimitive2d.hxx>

//////////////////////////////////////////////////////////////////////////////

namespace drawinglayer
{
	namespace primitive2d
	{
        /** InvertPrimitive2D class

            This is a helper class which encapsulates geometry that should be
            painted XOR, e.g. old cursor visualisations. It decomposes to
            it's content, so when not supporting it, the contained geometry
            will be visualized normally.
            Unfortunately this is still needed, but hard to support on various
            systems. XOR painting needs read access to the target, so modern
            graphic systems tend to not support it anymore.
         */
		class DRAWINGLAYER_DLLPUBLIC InvertPrimitive2D : public GroupPrimitive2D
		{
		public:
            /// constructor
			InvertPrimitive2D(const Primitive2DSequence& rChildren);

			/// provide unique ID
			DeclPrimitrive2DIDBlock()
		};
	} // end of namespace primitive2d
} // end of namespace drawinglayer

//////////////////////////////////////////////////////////////////////////////

#endif //INCLUDED_DRAWINGLAYER_PRIMITIVE2D_INVERTPRIMITIVE2D_HXX

//////////////////////////////////////////////////////////////////////////////
// eof