AOO410/main/drawinglayer/inc/drawinglayer/primitive2d/discreteshadowprimitive2d.hxx

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#ifndef INCLUDED_DRAWINGLAYER_PRIMITIVE2D_QUADRATICSHADOWPRIMITIVE2D_HXX
#define INCLUDED_DRAWINGLAYER_PRIMITIVE2D_QUADRATICSHADOWPRIMITIVE2D_HXX

#include <drawinglayer/drawinglayerdllapi.h>
#include <drawinglayer/primitive2d/primitivetools2d.hxx>
#include <vcl/bitmapex.hxx>
#include <basegfx/matrix/b2dhommatrix.hxx>

//////////////////////////////////////////////////////////////////////////////
// DiscreteShadowPrimitive2D class

namespace drawinglayer
{
	namespace primitive2d
	{
		/** DiscreteShadow data class

         */
		class DRAWINGLAYER_DLLPUBLIC DiscreteShadow
		{
		private:
			/// the original shadow BitmapEx in a special form
			BitmapEx					maBitmapEx;

			/// buffered extracted parts of CombinedShadow for easier usage
			BitmapEx					maTopLeft;
			BitmapEx					maTop;
			BitmapEx					maTopRight;
			BitmapEx					maRight;
			BitmapEx					maBottomRight;
			BitmapEx					maBottom;
			BitmapEx					maBottomLeft;
			BitmapEx					maLeft;

		public:
			/// constructor
			DiscreteShadow(const BitmapEx& rBitmapEx);

			/// data read access
			const BitmapEx& getBitmapEx() const { return maBitmapEx; }

            /// compare operator
			bool operator==(const DiscreteShadow& rCompare) const
			{
				return getBitmapEx() == rCompare.getBitmapEx();
			}

			/// helper accesses which create on-demand needed segments
			const BitmapEx& getTopLeft() const;
			const BitmapEx& getTop() const;
			const BitmapEx& getTopRight() const;
			const BitmapEx& getRight() const;
			const BitmapEx& getBottomRight() const;
			const BitmapEx& getBottom() const;
			const BitmapEx& getBottomLeft() const;
			const BitmapEx& getLeft() const;
		};

		/** DiscreteShadowPrimitive2D class

         */
		class DRAWINGLAYER_DLLPUBLIC DiscreteShadowPrimitive2D : public DiscreteMetricDependentPrimitive2D
		{
        private:
			// the object transformation of the rectangular object
			basegfx::B2DHomMatrix		maTransform;

			// the bitmap shadow data
            DiscreteShadow				maDiscreteShadow;

		protected:
			/// create local decomposition
			virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;

        public:
            /// constructor
			DiscreteShadowPrimitive2D(
				const basegfx::B2DHomMatrix& rTransform,
				const DiscreteShadow& rDiscreteShadow);

			/// data read access
			const basegfx::B2DHomMatrix& getTransform() const { return maTransform; }
			const DiscreteShadow& getDiscreteShadow() const { return maDiscreteShadow; }

            /// compare operator
			virtual bool operator==(const BasePrimitive2D& rPrimitive) const;

			/// get range
			virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;

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

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

#endif // INCLUDED_DRAWINGLAYER_PRIMITIVE2D_QUADRATICSHADOWPRIMITIVE2D_HXX

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