shadow3dextractor.hxx

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#pragma once
 
#include <drawinglayer/processor3d/baseprocessor3d.hxx>
#include <drawinglayer/primitive2d/Primitive2DContainer.hxx>
#include <basegfx/matrix/b3dhommatrix.hxx>
#include <basegfx/polygon/b2dpolygon.hxx>
#include <basegfx/polygon/b2dpolypolygon.hxx>
#include <basegfx/matrix/b2dhommatrix.hxx>
 
namespace basegfx { class B3DPolyPolygon; }
namespace basegfx { class B3DPolygon; }
 
 
namespace drawinglayer::processor3d
    {
        class Shadow3DExtractingProcessor final : public BaseProcessor3D
        {
        private:
            primitive2d::Primitive2DContainer                  maPrimitive2DSequence;
            primitive2d::Primitive2DContainer*                 mpPrimitive2DSequence;
 
            basegfx::B2DHomMatrix                           maObjectTransformation;
 
            basegfx::B3DHomMatrix                           maWorldToEye;
            basegfx::B3DHomMatrix                           maEyeToView;
            basegfx::B3DVector                              maLightNormal;
            basegfx::B3DVector                              maShadowPlaneNormal;
            basegfx::B3DPoint                               maPlanePoint;
            double                                          mfLightPlaneScalar;
 
            bool                                            mbShadowProjectionIsValid : 1;
 
            bool                                            mbConvert : 1;
 
            bool                                            mbUseProjection : 1;
 
            basegfx::B2DPolygon impDoShadowProjection(const basegfx::B3DPolygon& rSource);
            basegfx::B2DPolyPolygon impDoShadowProjection(const basegfx::B3DPolyPolygon& rSource);
 
            /*  as tooling, the process() implementation takes over API handling and calls this
                virtual render method when the primitive implementation is BasePrimitive3D-based.
             */
            virtual void processBasePrimitive3D(const primitive3d::BasePrimitive3D& rCandidate) override;
 
        public:
            Shadow3DExtractingProcessor(
                const geometry::ViewInformation3D& rViewInformation,
                basegfx::B2DHomMatrix aObjectTransformation,
                const basegfx::B3DVector& rLightNormal,
                double fShadowSlant,
                const basegfx::B3DRange& rContained3DRange);
            virtual ~Shadow3DExtractingProcessor() override;
 
            const primitive2d::Primitive2DContainer& getPrimitive2DSequence() const;
            const basegfx::B2DHomMatrix& getObjectTransformation() const { return maObjectTransformation; }
            const basegfx::B3DHomMatrix& getWorldToEye() const { return maWorldToEye; }
        };
 
} // end of namespace drawinglayer::processor3d
 
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