AOO410/main/drawinglayer/inc/drawinglayer/primitive3d/polygontubeprimitive3d.hxx

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#ifndef INCLUDED_DRAWINGLAYER_PRIMITIVE3D_POLYGONTUBEPRIMITIVE3D_HXX
#define INCLUDED_DRAWINGLAYER_PRIMITIVE3D_POLYGONTUBEPRIMITIVE3D_HXX

#include <drawinglayer/drawinglayerdllapi.h>
#include <drawinglayer/primitive3d/polygonprimitive3d.hxx>

//////////////////////////////////////////////////////////////////////////////
// predefines

namespace basegfx {
	class B3DPolyPolygon;
	class B3DHomMatrix;
}

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

namespace drawinglayer
{
	namespace primitive3d
	{
        /** PolygonStrokePrimitive3D class

            This 3D primitive extends a 3D hairline to a 3D tube which is
            e.g. used for fat lines in 3D. It's decomposition will create all
            3D objects needed for the line tubes and the edge roundings
            in full 3D.
         */
		class DRAWINGLAYER_DLLPUBLIC PolygonTubePrimitive3D : public PolygonHairlinePrimitive3D
		{
		private:
            /// hold the last decompositon since it's expensive
			Primitive3DSequence							maLast3DDecomposition;

            /// visualisation parameters
			double										mfRadius;
			double										mfDegreeStepWidth;
			double										mfMiterMinimumAngle;
			basegfx::B2DLineJoin					    maLineJoin;
            com::sun::star::drawing::LineCap            maLineCap;

		protected:
			/** access methods to maLast3DDecomposition. The usage of this methods may allow
			    later thread-safe stuff to be added if needed. Only to be used by getDecomposition()
			    implementations for buffering the last decomposition.
             */
			const Primitive3DSequence& getLast3DDecomposition() const { return maLast3DDecomposition; }
			void setLast3DDecomposition(const Primitive3DSequence& rNew) { maLast3DDecomposition = rNew; }

            /// local decomposition.
			Primitive3DSequence impCreate3DDecomposition(const geometry::ViewInformation3D& rViewInformation) const;

		public:
            /// constructor
			PolygonTubePrimitive3D(
				const basegfx::B3DPolygon& rPolygon, 
				const basegfx::BColor& rBColor,
				double fRadius, 
                basegfx::B2DLineJoin aLineJoin,
                com::sun::star::drawing::LineCap aLineCap,
				double fDegreeStepWidth = 10.0 * F_PI180,
				double fMiterMinimumAngle = 15.0 * F_PI180);

			/// data read access
			double getRadius() const { return mfRadius; }
			double getDegreeStepWidth() const { return mfDegreeStepWidth; }
			double getMiterMinimumAngle() const { return mfMiterMinimumAngle; }
			basegfx::B2DLineJoin getLineJoin() const { return maLineJoin; }
            com::sun::star::drawing::LineCap getLineCap() const { return maLineCap; }

			/// compare operator
			virtual bool operator==(const BasePrimitive3D& rPrimitive) const;

            /** local decomposition. Use own buffering since we are not derived from 
                BufferedDecompositionPrimitive3D
             */
			virtual Primitive3DSequence get3DDecomposition(const geometry::ViewInformation3D& rViewInformation) const;

            /// provide unique ID
			DeclPrimitrive3DIDBlock()
		};
	} // end of namespace primitive3d
} // end of namespace drawinglayer

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

#endif //INCLUDED_DRAWINGLAYER_PRIMITIVE3D_POLYGONTUBEPRIMITIVE3D_HXX

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