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Diffstat (limited to 'drawinglayer/source/primitive3d/polygontubeprimitive3d.cxx')
| -rw-r--r-- | drawinglayer/source/primitive3d/polygontubeprimitive3d.cxx | 579 |
1 files changed, 579 insertions, 0 deletions
diff --git a/drawinglayer/source/primitive3d/polygontubeprimitive3d.cxx b/drawinglayer/source/primitive3d/polygontubeprimitive3d.cxx new file mode 100644 index 000000000000..7b5f183575b2 --- /dev/null +++ b/drawinglayer/source/primitive3d/polygontubeprimitive3d.cxx @@ -0,0 +1,579 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +// MARKER(update_precomp.py): autogen include statement, do not remove +#include "precompiled_drawinglayer.hxx" + +#include <drawinglayer/primitive3d/polygontubeprimitive3d.hxx> +#include <drawinglayer/attribute/materialattribute3d.hxx> +#include <basegfx/matrix/b3dhommatrix.hxx> +#include <basegfx/polygon/b3dpolypolygon.hxx> +#include <drawinglayer/primitive3d/polypolygonprimitive3d.hxx> +#include <basegfx/polygon/b3dpolypolygontools.hxx> +#include <drawinglayer/primitive3d/transformprimitive3d.hxx> +#include <drawinglayer/primitive3d/drawinglayer_primitivetypes3d.hxx> + +////////////////////////////////////////////////////////////////////////////// + +namespace drawinglayer +{ + namespace primitive3d + { + namespace // anonymous namespace + { + Primitive3DSequence getLineTubeSegments( + sal_uInt32 nSegments, + const attribute::MaterialAttribute3D& rMaterial) + { + // static data for buffered tube primitives + static Primitive3DSequence aLineTubeList; + static sal_uInt32 nLineTubeSegments(0L); + static attribute::MaterialAttribute3D aLineMaterial; + + // may exclusively change static data, use mutex + ::osl::Mutex m_mutex; + + if(nSegments != nLineTubeSegments || !(rMaterial == aLineMaterial)) + { + nLineTubeSegments = nSegments; + aLineMaterial = rMaterial; + aLineTubeList = Primitive3DSequence(); + } + + if(!aLineTubeList.hasElements() && 0L != nLineTubeSegments) + { + const basegfx::B3DPoint aLeft(0.0, 0.0, 0.0); + const basegfx::B3DPoint aRight(1.0, 0.0, 0.0); + basegfx::B3DPoint aLastLeft(0.0, 1.0, 0.0); + basegfx::B3DPoint aLastRight(1.0, 1.0, 0.0); + basegfx::B3DHomMatrix aRot; + aRot.rotate(F_2PI / (double)nLineTubeSegments, 0.0, 0.0); + aLineTubeList.realloc(nLineTubeSegments); + + for(sal_uInt32 a(0L); a < nLineTubeSegments; a++) + { + const basegfx::B3DPoint aNextLeft(aRot * aLastLeft); + const basegfx::B3DPoint aNextRight(aRot * aLastRight); + basegfx::B3DPolygon aNewPolygon; + + aNewPolygon.append(aNextLeft); + aNewPolygon.setNormal(0L, basegfx::B3DVector(aNextLeft - aLeft)); + + aNewPolygon.append(aLastLeft); + aNewPolygon.setNormal(1L, basegfx::B3DVector(aLastLeft - aLeft)); + + aNewPolygon.append(aLastRight); + aNewPolygon.setNormal(2L, basegfx::B3DVector(aLastRight - aRight)); + + aNewPolygon.append(aNextRight); + aNewPolygon.setNormal(3L, basegfx::B3DVector(aNextRight - aRight)); + + aNewPolygon.setClosed(true); + + const basegfx::B3DPolyPolygon aNewPolyPolygon(aNewPolygon); + const Primitive3DReference xRef(new PolyPolygonMaterialPrimitive3D(aNewPolyPolygon, aLineMaterial, false)); + aLineTubeList[a] = xRef; + + aLastLeft = aNextLeft; + aLastRight = aNextRight; + } + } + + return aLineTubeList; + } + + Primitive3DSequence getLineCapSegments( + sal_uInt32 nSegments, + const attribute::MaterialAttribute3D& rMaterial) + { + // static data for buffered tube primitives + static Primitive3DSequence aLineCapList; + static sal_uInt32 nLineCapSegments(0L); + static attribute::MaterialAttribute3D aLineMaterial; + + // may exclusively change static data, use mutex + ::osl::Mutex m_mutex; + + if(nSegments != nLineCapSegments || !(rMaterial == aLineMaterial)) + { + nLineCapSegments = nSegments; + aLineMaterial = rMaterial; + aLineCapList = Primitive3DSequence(); + } + + if(!aLineCapList.hasElements() && 0L != nLineCapSegments) + { + const basegfx::B3DPoint aNull(0.0, 0.0, 0.0); + basegfx::B3DPoint aLast(0.0, 1.0, 0.0); + basegfx::B3DHomMatrix aRot; + aRot.rotate(F_2PI / (double)nLineCapSegments, 0.0, 0.0); + aLineCapList.realloc(nLineCapSegments); + + for(sal_uInt32 a(0L); a < nLineCapSegments; a++) + { + const basegfx::B3DPoint aNext(aRot * aLast); + basegfx::B3DPolygon aNewPolygon; + + aNewPolygon.append(aLast); + aNewPolygon.setNormal(0L, basegfx::B3DVector(aLast - aNull)); + + aNewPolygon.append(aNext); + aNewPolygon.setNormal(1L, basegfx::B3DVector(aNext - aNull)); + + aNewPolygon.append(aNull); + aNewPolygon.setNormal(2L, basegfx::B3DVector(-1.0, 0.0, 0.0)); + + aNewPolygon.setClosed(true); + + const basegfx::B3DPolyPolygon aNewPolyPolygon(aNewPolygon); + const Primitive3DReference xRef(new PolyPolygonMaterialPrimitive3D(aNewPolyPolygon, aLineMaterial, false)); + aLineCapList[a] = xRef; + + aLast = aNext; + } + } + + return aLineCapList; + } + + Primitive3DSequence getLineJoinSegments( + sal_uInt32 nSegments, + const attribute::MaterialAttribute3D& rMaterial, + double fAngle, + double /*fDegreeStepWidth*/, + double fMiterMinimumAngle, + basegfx::B2DLineJoin aLineJoin) + { + // nSegments is for whole circle, adapt to half circle + const sal_uInt32 nVerSeg(nSegments >> 1L); + std::vector< BasePrimitive3D* > aResultVector; + + if(nVerSeg) + { + if(basegfx::B2DLINEJOIN_ROUND == aLineJoin) + { + // calculate new horizontal segments + const sal_uInt32 nHorSeg((sal_uInt32)((fAngle / F_2PI) * (double)nSegments)); + + if(nHorSeg) + { + // create half-sphere + const basegfx::B3DPolyPolygon aSphere(basegfx::tools::createUnitSphereFillPolyPolygon(nHorSeg, nVerSeg, true, F_PI2, -F_PI2, 0.0, fAngle)); + + for(sal_uInt32 a(0L); a < aSphere.count(); a++) + { + const basegfx::B3DPolygon aPartPolygon(aSphere.getB3DPolygon(a)); + const basegfx::B3DPolyPolygon aPartPolyPolygon(aPartPolygon); + BasePrimitive3D* pNew = new PolyPolygonMaterialPrimitive3D(aPartPolyPolygon, rMaterial, false); + aResultVector.push_back(pNew); + } + } + else + { + // fallback to bevel when there is not at least one segment hor and ver + aLineJoin = basegfx::B2DLINEJOIN_BEVEL; + } + } + + if(basegfx::B2DLINEJOIN_MIDDLE == aLineJoin + || basegfx::B2DLINEJOIN_BEVEL == aLineJoin + || basegfx::B2DLINEJOIN_MITER == aLineJoin) + { + if(basegfx::B2DLINEJOIN_MITER == aLineJoin) + { + const double fMiterAngle(fAngle/2.0); + + if(fMiterAngle < fMiterMinimumAngle) + { + // fallback to bevel when miter's angle is too small + aLineJoin = basegfx::B2DLINEJOIN_BEVEL; + } + } + + const double fInc(F_PI / (double)nVerSeg); + const double fSin(sin(-fAngle)); + const double fCos(cos(-fAngle)); + const bool bMiter(basegfx::B2DLINEJOIN_MITER == aLineJoin); + const double fMiterSin(bMiter ? sin(-(fAngle/2.0)) : 0.0); + const double fMiterCos(bMiter ? cos(-(fAngle/2.0)) : 0.0); + double fPos(-F_PI2); + basegfx::B3DPoint aPointOnXY, aPointRotY, aNextPointOnXY, aNextPointRotY; + basegfx::B3DPoint aCurrMiter, aNextMiter; + basegfx::B3DPolygon aNewPolygon, aMiterPolygon; + + // close polygon + aNewPolygon.setClosed(true); + aMiterPolygon.setClosed(true); + + for(sal_uInt32 a(0L); a < nVerSeg; a++) + { + const bool bFirst(0L == a); + const bool bLast(a + 1L == nVerSeg); + + if(bFirst || !bLast) + { + fPos += fInc; + + aNextPointOnXY = basegfx::B3DPoint( + cos(fPos), + sin(fPos), + 0.0); + + aNextPointRotY = basegfx::B3DPoint( + aNextPointOnXY.getX() * fCos, + aNextPointOnXY.getY(), + aNextPointOnXY.getX() * fSin); + + if(bMiter) + { + aNextMiter = basegfx::B3DPoint( + aNextPointOnXY.getX(), + aNextPointOnXY.getY(), + fMiterSin * (aNextPointOnXY.getX() / fMiterCos)); + } + } + + if(bFirst) + { + aNewPolygon.clear(); + + if(bMiter) + { + aNewPolygon.append(basegfx::B3DPoint(0.0, -1.0, 0.0)); + aNewPolygon.append(aNextPointOnXY); + aNewPolygon.append(aNextMiter); + + aMiterPolygon.clear(); + aMiterPolygon.append(basegfx::B3DPoint(0.0, -1.0, 0.0)); + aMiterPolygon.append(aNextMiter); + aMiterPolygon.append(aNextPointRotY); + } + else + { + aNewPolygon.append(basegfx::B3DPoint(0.0, -1.0, 0.0)); + aNewPolygon.append(aNextPointOnXY); + aNewPolygon.append(aNextPointRotY); + } + } + else if(bLast) + { + aNewPolygon.clear(); + + if(bMiter) + { + aNewPolygon.append(basegfx::B3DPoint(0.0, 1.0, 0.0)); + aNewPolygon.append(aCurrMiter); + aNewPolygon.append(aPointOnXY); + + aMiterPolygon.clear(); + aMiterPolygon.append(basegfx::B3DPoint(0.0, 1.0, 0.0)); + aMiterPolygon.append(aPointRotY); + aMiterPolygon.append(aCurrMiter); + } + else + { + aNewPolygon.append(basegfx::B3DPoint(0.0, 1.0, 0.0)); + aNewPolygon.append(aPointRotY); + aNewPolygon.append(aPointOnXY); + } + } + else + { + aNewPolygon.clear(); + + if(bMiter) + { + aNewPolygon.append(aPointOnXY); + aNewPolygon.append(aNextPointOnXY); + aNewPolygon.append(aNextMiter); + aNewPolygon.append(aCurrMiter); + + aMiterPolygon.clear(); + aMiterPolygon.append(aCurrMiter); + aMiterPolygon.append(aNextMiter); + aMiterPolygon.append(aNextPointRotY); + aMiterPolygon.append(aPointRotY); + } + else + { + aNewPolygon.append(aPointRotY); + aNewPolygon.append(aPointOnXY); + aNewPolygon.append(aNextPointOnXY); + aNewPolygon.append(aNextPointRotY); + } + } + + // set normals + for(sal_uInt32 b(0L); b < aNewPolygon.count(); b++) + { + aNewPolygon.setNormal(b, basegfx::B3DVector(aNewPolygon.getB3DPoint(b))); + } + + // create primitive + if(aNewPolygon.count()) + { + const basegfx::B3DPolyPolygon aNewPolyPolygon(aNewPolygon); + BasePrimitive3D* pNew = new PolyPolygonMaterialPrimitive3D(aNewPolyPolygon, rMaterial, false); + aResultVector.push_back(pNew); + } + + if(bMiter && aMiterPolygon.count()) + { + // set normals + for(sal_uInt32 c(0L); c < aMiterPolygon.count(); c++) + { + aMiterPolygon.setNormal(c, basegfx::B3DVector(aMiterPolygon.getB3DPoint(c))); + } + + // create primitive + const basegfx::B3DPolyPolygon aMiterPolyPolygon(aMiterPolygon); + BasePrimitive3D* pNew = new PolyPolygonMaterialPrimitive3D(aMiterPolyPolygon, rMaterial, false); + aResultVector.push_back(pNew); + } + + // prepare next step + if(bFirst || !bLast) + { + aPointOnXY = aNextPointOnXY; + aPointRotY = aNextPointRotY; + + if(bMiter) + { + aCurrMiter = aNextMiter; + } + } + } + } + } + + Primitive3DSequence aRetval(aResultVector.size()); + + for(sal_uInt32 a(0L); a < aResultVector.size(); a++) + { + aRetval[a] = Primitive3DReference(aResultVector[a]); + } + + return aRetval; + } + + basegfx::B3DHomMatrix getRotationFromVector(const basegfx::B3DVector& rVector) + { + // build transformation from unit vector to vector + basegfx::B3DHomMatrix aRetval; + + // get applied rotations from angles in XY and in XZ (cartesian) + const double fRotInXY(atan2(rVector.getY(), rVector.getXZLength())); + const double fRotInXZ(atan2(-rVector.getZ(), rVector.getX())); + + // apply rotations. Rot around Z needs to be done first, so apply in two steps + aRetval.rotate(0.0, 0.0, fRotInXY); + aRetval.rotate(0.0, fRotInXZ, 0.0); + + return aRetval; + } + } // end of anonymous namespace + } // end of namespace primitive3d +} // end of namespace drawinglayer + +////////////////////////////////////////////////////////////////////////////// + +using namespace com::sun::star; + +////////////////////////////////////////////////////////////////////////////// + +namespace drawinglayer +{ + namespace primitive3d + { + Primitive3DSequence PolygonTubePrimitive3D::impCreate3DDecomposition(const geometry::ViewInformation3D& /*rViewInformation*/) const + { + const sal_uInt32 nPointCount(getB3DPolygon().count()); + std::vector< BasePrimitive3D* > aResultVector; + + if(0L != nPointCount) + { + if(basegfx::fTools::more(getRadius(), 0.0)) + { + const attribute::MaterialAttribute3D aMaterial(getBColor()); + static sal_uInt32 nSegments(8L); // default for 3d line segments, for more quality just raise this value (in even steps) + const bool bClosed(getB3DPolygon().isClosed()); + const bool bNoLineJoin(basegfx::B2DLINEJOIN_NONE == getLineJoin()); + const sal_uInt32 nLoopCount(bClosed ? nPointCount : nPointCount - 1L); + basegfx::B3DPoint aLast(getB3DPolygon().getB3DPoint(nPointCount - 1L)); + basegfx::B3DPoint aCurr(getB3DPolygon().getB3DPoint(0L)); + + for(sal_uInt32 a(0L); a < nLoopCount; a++) + { + // get next data + const basegfx::B3DPoint aNext(getB3DPolygon().getB3DPoint((a + 1L) % nPointCount)); + const basegfx::B3DVector aForw(aNext - aCurr); + const double fForwLen(aForw.getLength()); + + if(basegfx::fTools::more(fForwLen, 0.0)) + { + // get rotation from vector, this describes rotation from (1, 0, 0) to aForw + basegfx::B3DHomMatrix aRotVector(getRotationFromVector(aForw)); + + // create default transformation with scale and rotate + basegfx::B3DHomMatrix aVectorTrans; + aVectorTrans.scale(fForwLen, getRadius(), getRadius()); + aVectorTrans *= aRotVector; + aVectorTrans.translate(aCurr.getX(), aCurr.getY(), aCurr.getZ()); + + if(bNoLineJoin || (!bClosed && !a)) + { + // line start edge, build transformed primitiveVector3D + TransformPrimitive3D* pNewTransformedA = new TransformPrimitive3D(aVectorTrans, getLineCapSegments(nSegments, aMaterial)); + aResultVector.push_back(pNewTransformedA); + } + else + { + const basegfx::B3DVector aBack(aCurr - aLast); + const double fCross(basegfx::cross(aBack, aForw).getLength()); + + if(!basegfx::fTools::equalZero(fCross)) + { + // line connect non-parallel, aBack, aForw, use getLineJoin() + const double fAngle(acos(aBack.scalar(aForw) / (fForwLen * aBack.getLength()))); // 0.0 .. F_PI2 + Primitive3DSequence aNewList(getLineJoinSegments(nSegments, aMaterial, fAngle, getDegreeStepWidth(), getMiterMinimumAngle(), getLineJoin())); + + // calculate transformation. First, get angle in YZ between nForw projected on (1, 0, 0) and nBack + basegfx::B3DHomMatrix aInvRotVector(aRotVector); + aInvRotVector.invert(); + basegfx::B3DVector aTransBack(aInvRotVector * aBack); + const double fRotInYZ(atan2(aTransBack.getY(), aTransBack.getZ())); + + // create trans by rotating unit sphere with angle 90 degrees around Y, then 180-fRot in X. + // Also apply usual scaling and translation + basegfx::B3DHomMatrix aSphereTrans; + aSphereTrans.rotate(0.0, F_PI2, 0.0); + aSphereTrans.rotate(F_PI - fRotInYZ, 0.0, 0.0); + aSphereTrans *= aRotVector; + aSphereTrans.scale(getRadius(), getRadius(), getRadius()); + aSphereTrans.translate(aCurr.getX(), aCurr.getY(), aCurr.getZ()); + + // line start edge, build transformed primitiveVector3D + TransformPrimitive3D* pNewTransformedB = new TransformPrimitive3D(aSphereTrans, aNewList); + aResultVector.push_back(pNewTransformedB); + } + } + + // create line segments, build transformed primitiveVector3D + TransformPrimitive3D* pNewTransformedC = new TransformPrimitive3D(aVectorTrans, getLineTubeSegments(nSegments, aMaterial)); + aResultVector.push_back(pNewTransformedC); + + if(bNoLineJoin || (!bClosed && ((a + 1L) == nLoopCount))) + { + // line end edge, first rotate (mirror) and translate, then use use aRotVector + basegfx::B3DHomMatrix aBackTrans; + aBackTrans.rotate(0.0, F_PI, 0.0); + aBackTrans.translate(1.0, 0.0, 0.0); + aBackTrans.scale(fForwLen, getRadius(), getRadius()); + aBackTrans *= aRotVector; + aBackTrans.translate(aCurr.getX(), aCurr.getY(), aCurr.getZ()); + + // line end edge, build transformed primitiveVector3D + TransformPrimitive3D* pNewTransformedD = new TransformPrimitive3D(aBackTrans, getLineCapSegments(nSegments, aMaterial)); + aResultVector.push_back(pNewTransformedD); + } + } + + // prepare next loop step + aLast = aCurr; + aCurr = aNext; + } + } + else + { + // create hairline + PolygonHairlinePrimitive3D* pNew = new PolygonHairlinePrimitive3D(getB3DPolygon(), getBColor()); + aResultVector.push_back(pNew); + } + } + + // prepare return value + Primitive3DSequence aRetval(aResultVector.size()); + + for(sal_uInt32 a(0L); a < aResultVector.size(); a++) + { + aRetval[a] = Primitive3DReference(aResultVector[a]); + } + + return aRetval; + } + + PolygonTubePrimitive3D::PolygonTubePrimitive3D( + const basegfx::B3DPolygon& rPolygon, + const basegfx::BColor& rBColor, + double fRadius, basegfx::B2DLineJoin aLineJoin, + double fDegreeStepWidth, + double fMiterMinimumAngle) + : PolygonHairlinePrimitive3D(rPolygon, rBColor), + maLast3DDecomposition(), + mfRadius(fRadius), + mfDegreeStepWidth(fDegreeStepWidth), + mfMiterMinimumAngle(fMiterMinimumAngle), + maLineJoin(aLineJoin) + { + } + + bool PolygonTubePrimitive3D::operator==(const BasePrimitive3D& rPrimitive) const + { + if(PolygonHairlinePrimitive3D::operator==(rPrimitive)) + { + const PolygonTubePrimitive3D& rCompare = (PolygonTubePrimitive3D&)rPrimitive; + + return (getRadius() == rCompare.getRadius() + && getDegreeStepWidth() == rCompare.getDegreeStepWidth() + && getMiterMinimumAngle() == rCompare.getMiterMinimumAngle() + && getLineJoin() == rCompare.getLineJoin()); + } + + return false; + } + + Primitive3DSequence PolygonTubePrimitive3D::get3DDecomposition(const geometry::ViewInformation3D& rViewInformation) const + { + ::osl::MutexGuard aGuard( m_aMutex ); + + if(!getLast3DDecomposition().hasElements()) + { + const Primitive3DSequence aNewSequence(impCreate3DDecomposition(rViewInformation)); + const_cast< PolygonTubePrimitive3D* >(this)->setLast3DDecomposition(aNewSequence); + } + + return getLast3DDecomposition(); + } + + // provide unique ID + ImplPrimitrive3DIDBlock(PolygonTubePrimitive3D, PRIMITIVE3D_ID_POLYGONTUBEPRIMITIVE3D) + + } // end of namespace primitive3d +} // end of namespace drawinglayer + +////////////////////////////////////////////////////////////////////////////// +// eof |