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Diffstat (limited to 'drawinglayer/source/primitive3d/polygontubeprimitive3d.cxx')
| -rw-r--r-- | drawinglayer/source/primitive3d/polygontubeprimitive3d.cxx | 769 |
1 files changed, 769 insertions, 0 deletions
diff --git a/drawinglayer/source/primitive3d/polygontubeprimitive3d.cxx b/drawinglayer/source/primitive3d/polygontubeprimitive3d.cxx new file mode 100644 index 000000000..d8d3cc9c8 --- /dev/null +++ b/drawinglayer/source/primitive3d/polygontubeprimitive3d.cxx @@ -0,0 +1,769 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include <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> +#include <mutex> + +namespace drawinglayer::primitive3d +{ + namespace // anonymous namespace + { + class TubeBuffer + { + private: + // data for buffered tube primitives + Primitive3DContainer m_aLineTubeList; + sal_uInt32 m_nLineTubeSegments; + attribute::MaterialAttribute3D m_aLineMaterial; + std::mutex m_aMutex; + public: + TubeBuffer() + : m_nLineTubeSegments(0) + { + } + + TubeBuffer(const TubeBuffer&) = delete; + const TubeBuffer& operator=(const TubeBuffer&) = delete; + + Primitive3DContainer getLineTubeSegments( + sal_uInt32 nSegments, + const attribute::MaterialAttribute3D& rMaterial) + { + // may exclusively change cached data, use mutex + std::unique_lock aGuard(m_aMutex); + + if (nSegments != m_nLineTubeSegments || !(rMaterial == m_aLineMaterial)) + { + m_nLineTubeSegments = nSegments; + m_aLineMaterial = rMaterial; + m_aLineTubeList = Primitive3DContainer(); + } + + if (m_aLineTubeList.empty() && m_nLineTubeSegments != 0) + { + 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(2 * M_PI / static_cast<double>(m_nLineTubeSegments), 0.0, 0.0); + m_aLineTubeList.resize(m_nLineTubeSegments); + + for(sal_uInt32 a = 0; a < m_nLineTubeSegments; ++a) + { + const basegfx::B3DPoint aNextLeft(aRot * aLastLeft); + const basegfx::B3DPoint aNextRight(aRot * aLastRight); + basegfx::B3DPolygon aNewPolygon; + + aNewPolygon.append(aNextLeft); + aNewPolygon.setNormal(0, basegfx::B3DVector(aNextLeft - aLeft)); + + aNewPolygon.append(aLastLeft); + aNewPolygon.setNormal(1, basegfx::B3DVector(aLastLeft - aLeft)); + + aNewPolygon.append(aLastRight); + aNewPolygon.setNormal(2, basegfx::B3DVector(aLastRight - aRight)); + + aNewPolygon.append(aNextRight); + aNewPolygon.setNormal(3, basegfx::B3DVector(aNextRight - aRight)); + + aNewPolygon.setClosed(true); + + const basegfx::B3DPolyPolygon aNewPolyPolygon(aNewPolygon); + const Primitive3DReference xRef(new PolyPolygonMaterialPrimitive3D(aNewPolyPolygon, m_aLineMaterial, false)); + m_aLineTubeList[a] = xRef; + + aLastLeft = aNextLeft; + aLastRight = aNextRight; + } + } + return m_aLineTubeList; + } + }; + + Primitive3DContainer getLineTubeSegments( + sal_uInt32 nSegments, + const attribute::MaterialAttribute3D& rMaterial) + { + // static data for buffered tube primitives + static TubeBuffer theTubeBuffer; + return theTubeBuffer.getLineTubeSegments(nSegments, rMaterial); + } + + class CapBuffer + { + private: + // data for buffered cap primitives + Primitive3DContainer m_aLineCapList; + sal_uInt32 m_nLineCapSegments; + attribute::MaterialAttribute3D m_aLineMaterial; + std::mutex m_aMutex; + public: + CapBuffer() + : m_nLineCapSegments(0) + { + } + CapBuffer(const CapBuffer&) = delete; + const CapBuffer& operator=(const CapBuffer&) = delete; + + Primitive3DContainer getLineCapSegments( + sal_uInt32 nSegments, + const attribute::MaterialAttribute3D& rMaterial) + { + // may exclusively change cached data, use mutex + std::unique_lock aGuard(m_aMutex); + + if (nSegments != m_nLineCapSegments || !(rMaterial == m_aLineMaterial)) + { + m_nLineCapSegments = nSegments; + m_aLineMaterial = rMaterial; + m_aLineCapList = Primitive3DContainer(); + } + + if (m_aLineCapList.empty() && m_nLineCapSegments != 0) + { + const basegfx::B3DPoint aNull(0.0, 0.0, 0.0); + basegfx::B3DPoint aLast(0.0, 1.0, 0.0); + basegfx::B3DHomMatrix aRot; + aRot.rotate(2 * M_PI / static_cast<double>(m_nLineCapSegments), 0.0, 0.0); + m_aLineCapList.resize(m_nLineCapSegments); + + for(sal_uInt32 a = 0; a < m_nLineCapSegments; ++a) + { + const basegfx::B3DPoint aNext(aRot * aLast); + basegfx::B3DPolygon aNewPolygon; + + aNewPolygon.append(aLast); + aNewPolygon.setNormal(0, basegfx::B3DVector(aLast - aNull)); + + aNewPolygon.append(aNext); + aNewPolygon.setNormal(1, basegfx::B3DVector(aNext - aNull)); + + aNewPolygon.append(aNull); + aNewPolygon.setNormal(2, basegfx::B3DVector(-1.0, 0.0, 0.0)); + + aNewPolygon.setClosed(true); + + const basegfx::B3DPolyPolygon aNewPolyPolygon(aNewPolygon); + const Primitive3DReference xRef(new PolyPolygonMaterialPrimitive3D(aNewPolyPolygon, m_aLineMaterial, false)); + m_aLineCapList[a] = xRef; + + aLast = aNext; + } + } + + return m_aLineCapList; + } + }; + + Primitive3DContainer getLineCapSegments( + sal_uInt32 nSegments, + const attribute::MaterialAttribute3D& rMaterial) + { + // static data for buffered cap primitives + static CapBuffer theCapBuffer; + return theCapBuffer.getLineCapSegments(nSegments, rMaterial); + } + + class CapRoundBuffer + { + private: + // data for buffered capround primitives + Primitive3DContainer m_aLineCapRoundList; + sal_uInt32 m_nLineCapRoundSegments; + attribute::MaterialAttribute3D m_aLineMaterial; + std::mutex m_aMutex; + public: + CapRoundBuffer() + : m_nLineCapRoundSegments(0) + { + } + CapRoundBuffer(const CapRoundBuffer&) = delete; + const CapRoundBuffer& operator=(const CapRoundBuffer&) = delete; + + Primitive3DContainer getLineCapRoundSegments( + sal_uInt32 nSegments, + const attribute::MaterialAttribute3D& rMaterial) + { + // may exclusively change cached data, use mutex + std::unique_lock aGuard(m_aMutex); + + if (nSegments != m_nLineCapRoundSegments || !(rMaterial == m_aLineMaterial)) + { + m_nLineCapRoundSegments = nSegments; + m_aLineMaterial = rMaterial; + m_aLineCapRoundList = Primitive3DContainer(); + } + + if (m_aLineCapRoundList.empty() && m_nLineCapRoundSegments) + { + // calculate new horizontal segments + sal_uInt32 nVerSeg(nSegments / 2); + + if (nVerSeg < 1) + { + nVerSeg = 1; + } + + // create half-sphere; upper half of unit sphere + basegfx::B3DPolyPolygon aSphere( + basegfx::utils::createUnitSphereFillPolyPolygon( + nSegments, + nVerSeg, + true, + M_PI_2, 0.0, + 0.0, 2 * M_PI)); + const sal_uInt32 nCount(aSphere.count()); + + if (nCount) + { + // rotate to have sphere cap oriented to negative X-Axis; do not + // forget to transform normals, too + basegfx::B3DHomMatrix aSphereTrans; + + aSphereTrans.rotate(0.0, 0.0, M_PI_2); + aSphere.transform(aSphereTrans); + aSphere.transformNormals(aSphereTrans); + + // realloc for primitives and create based on polygon snippets + m_aLineCapRoundList.resize(nCount); + + for (sal_uInt32 a = 0; a < nCount; ++a) + { + const basegfx::B3DPolygon& aPartPolygon(aSphere.getB3DPolygon(a)); + const basegfx::B3DPolyPolygon aPartPolyPolygon(aPartPolygon); + + // need to create one primitive per Polygon since the primitive + // is for planar PolyPolygons which is definitely not the case here + m_aLineCapRoundList[a] = new PolyPolygonMaterialPrimitive3D( + aPartPolyPolygon, + rMaterial, + false); + } + } + } + + return m_aLineCapRoundList; + } + + }; + + Primitive3DContainer getLineCapRoundSegments( + sal_uInt32 nSegments, + const attribute::MaterialAttribute3D& rMaterial) + { + // static data for buffered cap primitives + static CapRoundBuffer theCapRoundBuffer; + return theCapRoundBuffer.getLineCapRoundSegments(nSegments, rMaterial); + } + + Primitive3DContainer getLineJoinSegments( + sal_uInt32 nSegments, + const attribute::MaterialAttribute3D& rMaterial, + double fAngle, + double fMiterMinimumAngle, + basegfx::B2DLineJoin aLineJoin) + { + // nSegments is for whole circle, adapt to half circle + const sal_uInt32 nVerSeg(nSegments >> 1); + std::vector< BasePrimitive3D* > aResultVector; + + if(nVerSeg) + { + if(basegfx::B2DLineJoin::Round == aLineJoin) + { + // calculate new horizontal segments + const sal_uInt32 nHorSeg(basegfx::fround((fAngle / (2 * M_PI)) * static_cast<double>(nSegments))); + + if(nHorSeg) + { + // create half-sphere + const basegfx::B3DPolyPolygon aSphere(basegfx::utils::createUnitSphereFillPolyPolygon(nHorSeg, nVerSeg, true, M_PI_2, -M_PI_2, 0.0, fAngle)); + + for(sal_uInt32 a(0); a < aSphere.count(); a++) + { + const basegfx::B3DPolygon& aPartPolygon(aSphere.getB3DPolygon(a)); + const basegfx::B3DPolyPolygon aPartPolyPolygon(aPartPolygon); + aResultVector.push_back(new PolyPolygonMaterialPrimitive3D(aPartPolyPolygon, rMaterial, false)); + } + } + else + { + // fallback to bevel when there is not at least one segment hor and ver + aLineJoin = basegfx::B2DLineJoin::Bevel; + } + } + + if (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(M_PI / static_cast<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(-M_PI_2); + 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(0); a < nVerSeg; a++) + { + const bool bFirst(0 == a); + const bool bLast(a + 1 == 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(0); b < aNewPolygon.count(); b++) + { + aNewPolygon.setNormal(b, basegfx::B3DVector(aNewPolygon.getB3DPoint(b))); + } + + // create primitive + if(aNewPolygon.count()) + { + const basegfx::B3DPolyPolygon aNewPolyPolygon(aNewPolygon); + aResultVector.push_back(new PolyPolygonMaterialPrimitive3D(aNewPolyPolygon, rMaterial, false)); + } + + if(bMiter && aMiterPolygon.count()) + { + // set normals + for(sal_uInt32 c(0); c < aMiterPolygon.count(); c++) + { + aMiterPolygon.setNormal(c, basegfx::B3DVector(aMiterPolygon.getB3DPoint(c))); + } + + // create primitive + const basegfx::B3DPolyPolygon aMiterPolyPolygon(aMiterPolygon); + aResultVector.push_back(new PolyPolygonMaterialPrimitive3D(aMiterPolyPolygon, rMaterial, false)); + } + + // prepare next step + if(bFirst || !bLast) + { + aPointOnXY = aNextPointOnXY; + aPointRotY = aNextPointRotY; + + if(bMiter) + { + aCurrMiter = aNextMiter; + } + } + } + } + } + + Primitive3DContainer aRetval(aResultVector.size()); + + for(size_t a(0); 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 + + +using namespace com::sun::star; + + Primitive3DContainer PolygonTubePrimitive3D::impCreate3DDecomposition(const geometry::ViewInformation3D& /*rViewInformation*/) const + { + const sal_uInt32 nPointCount(getB3DPolygon().count()); + std::vector< BasePrimitive3D* > aResultVector; + + if(nPointCount) + { + if(basegfx::fTools::more(getRadius(), 0.0)) + { + const attribute::MaterialAttribute3D aMaterial(getBColor()); + static const sal_uInt32 nSegments(8); // 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 - 1); + basegfx::B3DPoint aLast(getB3DPolygon().getB3DPoint(nPointCount - 1)); + basegfx::B3DPoint aCurr(getB3DPolygon().getB3DPoint(0)); + + for(sal_uInt32 a(0); a < nLoopCount; a++) + { + // get next data + const basegfx::B3DPoint aNext(getB3DPolygon().getB3DPoint((a + 1) % nPointCount)); + const basegfx::B3DVector aForw(aNext - aCurr); + const double fForwLen(aForw.getLength()); + + if(basegfx::fTools::more(fForwLen, 0.0)) + { + // find out if linecap is active + const bool bFirst(!a); + const bool bLast(a + 1 == nLoopCount); + const bool bLineCapPossible(!bClosed && (bFirst || bLast)); + const bool bLineCapRound(bLineCapPossible && css::drawing::LineCap_ROUND == getLineCap()); + const bool bLineCapSquare(bLineCapPossible && css::drawing::LineCap_SQUARE == getLineCap()); + + // get rotation from vector, this describes rotation from (1, 0, 0) to aForw + basegfx::B3DHomMatrix aRotVector(getRotationFromVector(aForw)); + + // prepare transformations for tube and cap + basegfx::B3DHomMatrix aTubeTrans; + basegfx::B3DHomMatrix aCapTrans; + + // cap gets radius size + aCapTrans.scale(getRadius(), getRadius(), getRadius()); + + if(bLineCapSquare) + { + // when square line cap just prolong line segment in X, maybe 2 x radius when + // first and last (simple line segment) + const double fExtraLength(bFirst && bLast ? getRadius() * 2.0 : getRadius()); + + aTubeTrans.scale(fForwLen + fExtraLength, getRadius(), getRadius()); + + if(bFirst) + { + // correct start positions for tube and cap when first and square prolonged + aTubeTrans.translate(-getRadius(), 0.0, 0.0); + aCapTrans.translate(-getRadius(), 0.0, 0.0); + } + } + else + { + // normal tube size + aTubeTrans.scale(fForwLen, getRadius(), getRadius()); + } + + // rotate and translate tube and cap + aTubeTrans *= aRotVector; + aTubeTrans.translate(aCurr.getX(), aCurr.getY(), aCurr.getZ()); + aCapTrans *= aRotVector; + aCapTrans.translate(aCurr.getX(), aCurr.getY(), aCurr.getZ()); + + if(bNoLineJoin || (!bClosed && bFirst)) + { + // line start edge, build transformed primitiveVector3D + Primitive3DContainer aSequence; + + if(bLineCapRound && bFirst) + { + // LineCapRound used + aSequence = getLineCapRoundSegments(nSegments, aMaterial); + } + else + { + // simple closing cap + aSequence = getLineCapSegments(nSegments, aMaterial); + } + + aResultVector.push_back(new TransformPrimitive3D(aCapTrans, aSequence)); + } + 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 .. M_PI_2 + Primitive3DContainer aNewList( + getLineJoinSegments( + nSegments, + aMaterial, + fAngle, + 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, M_PI_2, 0.0); + aSphereTrans.rotate(M_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 + aResultVector.push_back( + new TransformPrimitive3D( + aSphereTrans, + aNewList)); + } + } + + // create line segments, build transformed primitiveVector3D + aResultVector.push_back( + new TransformPrimitive3D( + aTubeTrans, + getLineTubeSegments(nSegments, aMaterial))); + + if(bNoLineJoin || (!bClosed && bLast)) + { + // line end edge + basegfx::B3DHomMatrix aBackCapTrans; + + // Mirror (line end) and radius scale + aBackCapTrans.rotate(0.0, M_PI, 0.0); + aBackCapTrans.scale(getRadius(), getRadius(), getRadius()); + + if(bLineCapSquare && bLast) + { + // correct position when square and prolonged + aBackCapTrans.translate(fForwLen + getRadius(), 0.0, 0.0); + } + else + { + // standard position + aBackCapTrans.translate(fForwLen, 0.0, 0.0); + } + + // rotate and translate to destination + aBackCapTrans *= aRotVector; + aBackCapTrans.translate(aCurr.getX(), aCurr.getY(), aCurr.getZ()); + + // get primitiveVector3D + Primitive3DContainer aSequence; + + if(bLineCapRound && bLast) + { + // LineCapRound used + aSequence = getLineCapRoundSegments(nSegments, aMaterial); + } + else + { + // simple closing cap + aSequence = getLineCapSegments(nSegments, aMaterial); + } + + aResultVector.push_back( + new TransformPrimitive3D( + aBackCapTrans, + aSequence)); + } + } + + // prepare next loop step + aLast = aCurr; + aCurr = aNext; + } + } + else + { + // create hairline + aResultVector.push_back(new PolygonHairlinePrimitive3D(getB3DPolygon(), getBColor())); + } + } + + // prepare return value + Primitive3DContainer aRetval(aResultVector.size()); + + for(size_t a(0); 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, + css::drawing::LineCap aLineCap, + double fDegreeStepWidth, + double fMiterMinimumAngle) + : PolygonHairlinePrimitive3D(rPolygon, rBColor), + mfRadius(fRadius), + mfDegreeStepWidth(fDegreeStepWidth), + mfMiterMinimumAngle(fMiterMinimumAngle), + maLineJoin(aLineJoin), + maLineCap(aLineCap) + { + } + + bool PolygonTubePrimitive3D::operator==(const BasePrimitive3D& rPrimitive) const + { + if(PolygonHairlinePrimitive3D::operator==(rPrimitive)) + { + const PolygonTubePrimitive3D& rCompare = static_cast<const PolygonTubePrimitive3D&>(rPrimitive); + + return (getRadius() == rCompare.getRadius() + && getDegreeStepWidth() == rCompare.getDegreeStepWidth() + && getMiterMinimumAngle() == rCompare.getMiterMinimumAngle() + && getLineJoin() == rCompare.getLineJoin() + && getLineCap() == rCompare.getLineCap()); + } + + return false; + } + + Primitive3DContainer PolygonTubePrimitive3D::get3DDecomposition(const geometry::ViewInformation3D& rViewInformation) const + { + ::osl::MutexGuard aGuard( m_aMutex ); + + if(getLast3DDecomposition().empty()) + { + const Primitive3DContainer aNewSequence(impCreate3DDecomposition(rViewInformation)); + const_cast< PolygonTubePrimitive3D* >(this)->maLast3DDecomposition = aNewSequence; + } + + return getLast3DDecomposition(); + } + + // provide unique ID + ImplPrimitive3DIDBlock(PolygonTubePrimitive3D, PRIMITIVE3D_ID_POLYGONTUBEPRIMITIVE3D) + +} +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |