xref: /aoo41x/main/drawinglayer/source/primitive3d/sdrsphereprimitive3d.cxx (revision 464702f4)

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 * Licensed to the Apache Software Foundation (ASF) under one
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 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_drawinglayer.hxx"

#include <drawinglayer/primitive3d/sdrsphereprimitive3d.hxx>
#include <basegfx/polygon/b3dpolypolygontools.hxx>
#include <basegfx/matrix/b2dhommatrix.hxx>
#include <basegfx/polygon/b3dpolygon.hxx>
#include <drawinglayer/primitive3d/sdrdecompositiontools3d.hxx>
#include <basegfx/tools/canvastools.hxx>
#include <drawinglayer/primitive3d/drawinglayer_primitivetypes3d.hxx>
#include <drawinglayer/attribute/sdrfillattribute.hxx>
#include <drawinglayer/attribute/sdrlineattribute.hxx>
#include <drawinglayer/attribute/sdrshadowattribute.hxx>

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

using namespace com::sun::star;

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

namespace drawinglayer
{
	namespace primitive3d
	{
		Primitive3DSequence SdrSpherePrimitive3D::create3DDecomposition(const geometry::ViewInformation3D& /*rViewInformation*/) const
		{
			Primitive3DSequence aRetval;
			const basegfx::B3DRange aUnitRange(0.0, 0.0, 0.0, 1.0, 1.0, 1.0);
			const bool bCreateNormals(::com::sun::star::drawing::NormalsKind_SPECIFIC == getSdr3DObjectAttribute().getNormalsKind()
				|| ::com::sun::star::drawing::NormalsKind_SPHERE == getSdr3DObjectAttribute().getNormalsKind());

			// create unit geometry
			basegfx::B3DPolyPolygon aFill(basegfx::tools::createSphereFillPolyPolygonFromB3DRange(aUnitRange,
				getHorizontalSegments(), getVerticalSegments(), bCreateNormals));

			// normal inversion
			if(!getSdrLFSAttribute().getFill().isDefault()
				&& bCreateNormals
				&& getSdr3DObjectAttribute().getNormalsInvert()
				&& aFill.areNormalsUsed())
			{
				// invert normals
				aFill = basegfx::tools::invertNormals(aFill);
			}

			// texture coordinates
			if(!getSdrLFSAttribute().getFill().isDefault())
			{
				// handle texture coordinates X
				const bool bParallelX(::com::sun::star::drawing::TextureProjectionMode_PARALLEL == getSdr3DObjectAttribute().getTextureProjectionX());
				const bool bObjectSpecificX(::com::sun::star::drawing::TextureProjectionMode_OBJECTSPECIFIC == getSdr3DObjectAttribute().getTextureProjectionX());
				const bool bSphereX(::com::sun::star::drawing::TextureProjectionMode_SPHERE == getSdr3DObjectAttribute().getTextureProjectionX());

				// handle texture coordinates Y
				const bool bParallelY(::com::sun::star::drawing::TextureProjectionMode_PARALLEL == getSdr3DObjectAttribute().getTextureProjectionY());
				const bool bObjectSpecificY(::com::sun::star::drawing::TextureProjectionMode_OBJECTSPECIFIC == getSdr3DObjectAttribute().getTextureProjectionY());
				const bool bSphereY(::com::sun::star::drawing::TextureProjectionMode_SPHERE == getSdr3DObjectAttribute().getTextureProjectionY());

				if(bParallelX || bParallelY)
				{
					// apply parallel texture coordinates in X and/or Y
					const basegfx::B3DRange aRange(basegfx::tools::getRange(aFill));
					aFill = basegfx::tools::applyDefaultTextureCoordinatesParallel(aFill, aRange, bParallelX, bParallelY);
				}

				if(bSphereX || bObjectSpecificX || bSphereY || bObjectSpecificY)
				{
					double fRelativeAngle(0.0);

					if(bObjectSpecificX)
					{
						// Since the texture coordinates are (for historical reasons)
						// different from forced to sphere texture coordinates,
						// create a old version from it by rotating to old state before applying
						// the texture coordinates to emulate old behaviour
						fRelativeAngle = F_2PI * ((double)((getHorizontalSegments() >> 1L)  - 1L) / (double)getHorizontalSegments());
						basegfx::B3DHomMatrix aRot;
						aRot.rotate(0.0, fRelativeAngle, 0.0);
						aFill.transform(aRot);
					}

					// apply spherical texture coordinates in X and/or Y
					const basegfx::B3DRange aRange(basegfx::tools::getRange(aFill));
					const basegfx::B3DPoint aCenter(aRange.getCenter());
					aFill = basegfx::tools::applyDefaultTextureCoordinatesSphere(aFill, aCenter,
						bSphereX || bObjectSpecificX, bSphereY || bObjectSpecificY);

					if(bObjectSpecificX)
					{
						// rotate back again
						basegfx::B3DHomMatrix aRot;
						aRot.rotate(0.0, -fRelativeAngle, 0.0);
						aFill.transform(aRot);
					}
				}

				// transform texture coordinates to texture size
				basegfx::B2DHomMatrix aTexMatrix;
				aTexMatrix.scale(getTextureSize().getX(), getTextureSize().getY());
				aFill.transformTextureCoordiantes(aTexMatrix);
			}

			// build vector of PolyPolygons
			::std::vector< basegfx::B3DPolyPolygon > a3DPolyPolygonVector;

			for(sal_uInt32 a(0L); a < aFill.count(); a++)
			{
				a3DPolyPolygonVector.push_back(basegfx::B3DPolyPolygon(aFill.getB3DPolygon(a)));
			}

			if(!getSdrLFSAttribute().getFill().isDefault())
			{
				// add fill
				aRetval = create3DPolyPolygonFillPrimitives(
					a3DPolyPolygonVector,
					getTransform(),
					getTextureSize(),
					getSdr3DObjectAttribute(),
					getSdrLFSAttribute().getFill(),
					getSdrLFSAttribute().getFillFloatTransGradient());
			}
			else
			{
				// create simplified 3d hit test geometry
                aRetval = createHiddenGeometryPrimitives3D(
			        a3DPolyPolygonVector,
			        getTransform(),
			        getTextureSize(),
			        getSdr3DObjectAttribute());
			}

			// add line
			if(!getSdrLFSAttribute().getLine().isDefault())
			{
				basegfx::B3DPolyPolygon aSphere(basegfx::tools::createSpherePolyPolygonFromB3DRange(aUnitRange, getHorizontalSegments(), getVerticalSegments()));
				const Primitive3DSequence aLines(create3DPolyPolygonLinePrimitives(
                    aSphere, getTransform(), getSdrLFSAttribute().getLine()));
				appendPrimitive3DSequenceToPrimitive3DSequence(aRetval, aLines);
			}

			// add shadow
			if(!getSdrLFSAttribute().getShadow().isDefault()
                && aRetval.hasElements())
			{
				const Primitive3DSequence aShadow(createShadowPrimitive3D(
                    aRetval, getSdrLFSAttribute().getShadow(), getSdr3DObjectAttribute().getShadow3D()));
				appendPrimitive3DSequenceToPrimitive3DSequence(aRetval, aShadow);
			}

			return aRetval;
		}

		SdrSpherePrimitive3D::SdrSpherePrimitive3D(
			const basegfx::B3DHomMatrix& rTransform,
			const basegfx::B2DVector& rTextureSize,
			const attribute::SdrLineFillShadowAttribute3D& rSdrLFSAttribute,
			const attribute::Sdr3DObjectAttribute& rSdr3DObjectAttribute,
			sal_uInt32 nHorizontalSegments,
			sal_uInt32 nVerticalSegments)
		:	SdrPrimitive3D(rTransform, rTextureSize, rSdrLFSAttribute, rSdr3DObjectAttribute),
			mnHorizontalSegments(nHorizontalSegments),
			mnVerticalSegments(nVerticalSegments)
		{
		}

		bool SdrSpherePrimitive3D::operator==(const BasePrimitive3D& rPrimitive) const
		{
			if(SdrPrimitive3D::operator==(rPrimitive))
			{
				const SdrSpherePrimitive3D& rCompare = static_cast< const SdrSpherePrimitive3D& >(rPrimitive);

				return (getHorizontalSegments() == rCompare.getHorizontalSegments()
					&& getVerticalSegments() == rCompare.getVerticalSegments());
			}

			return false;
		}

		basegfx::B3DRange SdrSpherePrimitive3D::getB3DRange(const geometry::ViewInformation3D& /*rViewInformation*/) const
		{
			// use defaut from sdrPrimitive3D which uses transformation expanded by line width/2
			// The parent implementation which uses the ranges of the decomposition would be more
			// corrcet, but for historical reasons it is necessary to do the old method: To get
			// the range of the non-transformed geometry and transform it then. This leads to different
			// ranges where the new method is more correct, but the need to keep the old behaviour
			// has priority here.
			return getStandard3DRange();
		}

		// provide unique ID
		ImplPrimitrive3DIDBlock(SdrSpherePrimitive3D, PRIMITIVE3D_ID_SDRSPHEREPRIMITIVE3D)

	} // end of namespace primitive3d
} // end of namespace drawinglayer

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