1464702f4SAndrew Rist /************************************************************** 2cdf0e10cSrcweir * 3464702f4SAndrew Rist * Licensed to the Apache Software Foundation (ASF) under one 4464702f4SAndrew Rist * or more contributor license agreements. See the NOTICE file 5464702f4SAndrew Rist * distributed with this work for additional information 6464702f4SAndrew Rist * regarding copyright ownership. The ASF licenses this file 7464702f4SAndrew Rist * to you under the Apache License, Version 2.0 (the 8464702f4SAndrew Rist * "License"); you may not use this file except in compliance 9464702f4SAndrew Rist * with the License. You may obtain a copy of the License at 10464702f4SAndrew Rist * 11464702f4SAndrew Rist * http://www.apache.org/licenses/LICENSE-2.0 12464702f4SAndrew Rist * 13464702f4SAndrew Rist * Unless required by applicable law or agreed to in writing, 14464702f4SAndrew Rist * software distributed under the License is distributed on an 15464702f4SAndrew Rist * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16464702f4SAndrew Rist * KIND, either express or implied. See the License for the 17464702f4SAndrew Rist * specific language governing permissions and limitations 18464702f4SAndrew Rist * under the License. 19464702f4SAndrew Rist * 20464702f4SAndrew Rist *************************************************************/ 21464702f4SAndrew Rist 22464702f4SAndrew Rist 23cdf0e10cSrcweir 24cdf0e10cSrcweir // MARKER(update_precomp.py): autogen include statement, do not remove 25cdf0e10cSrcweir #include "precompiled_drawinglayer.hxx" 26cdf0e10cSrcweir 27cdf0e10cSrcweir #include <drawinglayer/processor3d/shadow3dextractor.hxx> 28cdf0e10cSrcweir #include <drawinglayer/primitive3d/shadowprimitive3d.hxx> 29cdf0e10cSrcweir #include <drawinglayer/primitive2d/shadowprimitive2d.hxx> 30cdf0e10cSrcweir #include <drawinglayer/primitive2d/unifiedtransparenceprimitive2d.hxx> 31cdf0e10cSrcweir #include <drawinglayer/primitive3d/transformprimitive3d.hxx> 32cdf0e10cSrcweir #include <drawinglayer/primitive3d/polygonprimitive3d.hxx> 33cdf0e10cSrcweir #include <basegfx/polygon/b2dpolygontools.hxx> 34cdf0e10cSrcweir #include <drawinglayer/primitive2d/polygonprimitive2d.hxx> 35cdf0e10cSrcweir #include <drawinglayer/primitive3d/polypolygonprimitive3d.hxx> 36cdf0e10cSrcweir #include <basegfx/polygon/b2dpolypolygontools.hxx> 37cdf0e10cSrcweir #include <drawinglayer/primitive2d/polypolygonprimitive2d.hxx> 38cdf0e10cSrcweir #include <drawinglayer/primitive3d/drawinglayer_primitivetypes3d.hxx> 39cdf0e10cSrcweir 40cdf0e10cSrcweir ////////////////////////////////////////////////////////////////////////////// 41cdf0e10cSrcweir 42cdf0e10cSrcweir using namespace com::sun::star; 43cdf0e10cSrcweir 44cdf0e10cSrcweir ////////////////////////////////////////////////////////////////////////////// 45cdf0e10cSrcweir 46cdf0e10cSrcweir namespace drawinglayer 47cdf0e10cSrcweir { 48cdf0e10cSrcweir namespace processor3d 49cdf0e10cSrcweir { 50cdf0e10cSrcweir // as tooling, the process() implementation takes over API handling and calls this 51cdf0e10cSrcweir // virtual render method when the primitive implementation is BasePrimitive3D-based. processBasePrimitive3D(const primitive3d::BasePrimitive3D & rCandidate)52cdf0e10cSrcweir void Shadow3DExtractingProcessor::processBasePrimitive3D(const primitive3d::BasePrimitive3D& rCandidate) 53cdf0e10cSrcweir { 54cdf0e10cSrcweir // it is a BasePrimitive3D implementation, use getPrimitive3DID() call for switch 55cdf0e10cSrcweir switch(rCandidate.getPrimitive3DID()) 56cdf0e10cSrcweir { 57cdf0e10cSrcweir case PRIMITIVE3D_ID_SHADOWPRIMITIVE3D : 58cdf0e10cSrcweir { 59cdf0e10cSrcweir // shadow3d object. Call recursive with content and start conversion 60cdf0e10cSrcweir const primitive3d::ShadowPrimitive3D& rPrimitive = static_cast< const primitive3d::ShadowPrimitive3D& >(rCandidate); 61cdf0e10cSrcweir 62cdf0e10cSrcweir // set new target 63*ddde725dSArmin Le Grand primitive2d::Primitive2DVector aNewSubList; 64*ddde725dSArmin Le Grand primitive2d::Primitive2DVector* pLastTargetSequence = mpPrimitive2DSequence; 65cdf0e10cSrcweir mpPrimitive2DSequence = &aNewSubList; 66cdf0e10cSrcweir 67cdf0e10cSrcweir // activate convert 68cdf0e10cSrcweir const bool bLastConvert(mbConvert); 69cdf0e10cSrcweir mbConvert = true; 70cdf0e10cSrcweir 71cdf0e10cSrcweir // set projection flag 72cdf0e10cSrcweir const bool bLastUseProjection(mbUseProjection); 73cdf0e10cSrcweir mbUseProjection = rPrimitive.getShadow3D(); 74cdf0e10cSrcweir 75cdf0e10cSrcweir // process content 76cdf0e10cSrcweir process(rPrimitive.getChildren()); 77cdf0e10cSrcweir 78cdf0e10cSrcweir // restore values 79cdf0e10cSrcweir mbUseProjection = bLastUseProjection; 80cdf0e10cSrcweir mbConvert = bLastConvert; 81cdf0e10cSrcweir mpPrimitive2DSequence = pLastTargetSequence; 82cdf0e10cSrcweir 83cdf0e10cSrcweir // create 2d shadow primitive with result. This also fetches all entries 84cdf0e10cSrcweir // from aNewSubList, so there is no need to delete them 85cdf0e10cSrcweir primitive2d::BasePrimitive2D* pNew = new primitive2d::ShadowPrimitive2D( 86cdf0e10cSrcweir rPrimitive.getShadowTransform(), 87cdf0e10cSrcweir rPrimitive.getShadowColor(), 88*ddde725dSArmin Le Grand primitive2d::Primitive2DVectorToPrimitive2DSequence(aNewSubList)); 89cdf0e10cSrcweir 90cdf0e10cSrcweir if(basegfx::fTools::more(rPrimitive.getShadowTransparence(), 0.0)) 91cdf0e10cSrcweir { 92cdf0e10cSrcweir // create simpleTransparencePrimitive, add created primitives 93cdf0e10cSrcweir const primitive2d::Primitive2DReference xRef(pNew); 94cdf0e10cSrcweir const primitive2d::Primitive2DSequence aNewTransPrimitiveVector(&xRef, 1); 95cdf0e10cSrcweir 96cdf0e10cSrcweir pNew = new primitive2d::UnifiedTransparencePrimitive2D( 97cdf0e10cSrcweir aNewTransPrimitiveVector, 98cdf0e10cSrcweir rPrimitive.getShadowTransparence()); 99cdf0e10cSrcweir } 100cdf0e10cSrcweir 101cdf0e10cSrcweir mpPrimitive2DSequence->push_back(pNew); 102cdf0e10cSrcweir 103cdf0e10cSrcweir break; 104cdf0e10cSrcweir } 105cdf0e10cSrcweir case PRIMITIVE3D_ID_TRANSFORMPRIMITIVE3D : 106cdf0e10cSrcweir { 107cdf0e10cSrcweir // transform group. Remember current transformations 108cdf0e10cSrcweir const primitive3d::TransformPrimitive3D& rPrimitive = static_cast< const primitive3d::TransformPrimitive3D& >(rCandidate); 109cdf0e10cSrcweir const geometry::ViewInformation3D aLastViewInformation3D(getViewInformation3D()); 110cdf0e10cSrcweir 111cdf0e10cSrcweir // create new transformation; add new object transform from right side 112cdf0e10cSrcweir const geometry::ViewInformation3D aNewViewInformation3D( 113cdf0e10cSrcweir aLastViewInformation3D.getObjectTransformation() * rPrimitive.getTransformation(), 114cdf0e10cSrcweir aLastViewInformation3D.getOrientation(), 115cdf0e10cSrcweir aLastViewInformation3D.getProjection(), 116cdf0e10cSrcweir aLastViewInformation3D.getDeviceToView(), 117cdf0e10cSrcweir aLastViewInformation3D.getViewTime(), 118cdf0e10cSrcweir aLastViewInformation3D.getExtendedInformationSequence()); 119cdf0e10cSrcweir updateViewInformation(aNewViewInformation3D); 120cdf0e10cSrcweir 121cdf0e10cSrcweir if(mbShadowProjectionIsValid) 122cdf0e10cSrcweir { 123cdf0e10cSrcweir // update buffered WorldToEye and EyeToView 124cdf0e10cSrcweir maWorldToEye = getViewInformation3D().getOrientation() * getViewInformation3D().getObjectTransformation(); 125cdf0e10cSrcweir maEyeToView = getViewInformation3D().getDeviceToView() * getViewInformation3D().getProjection(); 126cdf0e10cSrcweir } 127cdf0e10cSrcweir 128cdf0e10cSrcweir // let break down 129cdf0e10cSrcweir process(rPrimitive.getChildren()); 130cdf0e10cSrcweir 131cdf0e10cSrcweir // restore transformations 132cdf0e10cSrcweir updateViewInformation(aLastViewInformation3D); 133cdf0e10cSrcweir 134cdf0e10cSrcweir if(mbShadowProjectionIsValid) 135cdf0e10cSrcweir { 136cdf0e10cSrcweir // update buffered WorldToEye and EyeToView 137cdf0e10cSrcweir maWorldToEye = getViewInformation3D().getOrientation() * getViewInformation3D().getObjectTransformation(); 138cdf0e10cSrcweir maEyeToView = getViewInformation3D().getDeviceToView() * getViewInformation3D().getProjection(); 139cdf0e10cSrcweir } 140cdf0e10cSrcweir break; 141cdf0e10cSrcweir } 142cdf0e10cSrcweir case PRIMITIVE3D_ID_POLYGONHAIRLINEPRIMITIVE3D : 143cdf0e10cSrcweir { 144cdf0e10cSrcweir // PolygonHairlinePrimitive3D 145cdf0e10cSrcweir if(mbConvert) 146cdf0e10cSrcweir { 147cdf0e10cSrcweir const primitive3d::PolygonHairlinePrimitive3D& rPrimitive = static_cast< const primitive3d::PolygonHairlinePrimitive3D& >(rCandidate); 148cdf0e10cSrcweir basegfx::B2DPolygon a2DHairline; 149cdf0e10cSrcweir 150cdf0e10cSrcweir if(mbUseProjection) 151cdf0e10cSrcweir { 152cdf0e10cSrcweir if(mbShadowProjectionIsValid) 153cdf0e10cSrcweir { 154cdf0e10cSrcweir a2DHairline = impDoShadowProjection(rPrimitive.getB3DPolygon()); 155cdf0e10cSrcweir } 156cdf0e10cSrcweir } 157cdf0e10cSrcweir else 158cdf0e10cSrcweir { 159cdf0e10cSrcweir a2DHairline = basegfx::tools::createB2DPolygonFromB3DPolygon(rPrimitive.getB3DPolygon(), getViewInformation3D().getObjectToView()); 160cdf0e10cSrcweir } 161cdf0e10cSrcweir 162cdf0e10cSrcweir if(a2DHairline.count()) 163cdf0e10cSrcweir { 164cdf0e10cSrcweir a2DHairline.transform(getObjectTransformation()); 165cdf0e10cSrcweir mpPrimitive2DSequence->push_back( 166cdf0e10cSrcweir new primitive2d::PolygonHairlinePrimitive2D( 167cdf0e10cSrcweir a2DHairline, 168cdf0e10cSrcweir maPrimitiveColor)); 169cdf0e10cSrcweir } 170cdf0e10cSrcweir } 171cdf0e10cSrcweir break; 172cdf0e10cSrcweir } 173cdf0e10cSrcweir case PRIMITIVE3D_ID_POLYPOLYGONMATERIALPRIMITIVE3D : 174cdf0e10cSrcweir { 175cdf0e10cSrcweir // PolyPolygonMaterialPrimitive3D 176cdf0e10cSrcweir if(mbConvert) 177cdf0e10cSrcweir { 178cdf0e10cSrcweir const primitive3d::PolyPolygonMaterialPrimitive3D& rPrimitive = static_cast< const primitive3d::PolyPolygonMaterialPrimitive3D& >(rCandidate); 179cdf0e10cSrcweir basegfx::B2DPolyPolygon a2DFill; 180cdf0e10cSrcweir 181cdf0e10cSrcweir if(mbUseProjection) 182cdf0e10cSrcweir { 183cdf0e10cSrcweir if(mbShadowProjectionIsValid) 184cdf0e10cSrcweir { 185cdf0e10cSrcweir a2DFill = impDoShadowProjection(rPrimitive.getB3DPolyPolygon()); 186cdf0e10cSrcweir } 187cdf0e10cSrcweir } 188cdf0e10cSrcweir else 189cdf0e10cSrcweir { 190cdf0e10cSrcweir a2DFill = basegfx::tools::createB2DPolyPolygonFromB3DPolyPolygon(rPrimitive.getB3DPolyPolygon(), getViewInformation3D().getObjectToView()); 191cdf0e10cSrcweir } 192cdf0e10cSrcweir 193cdf0e10cSrcweir if(a2DFill.count()) 194cdf0e10cSrcweir { 195cdf0e10cSrcweir a2DFill.transform(getObjectTransformation()); 196cdf0e10cSrcweir mpPrimitive2DSequence->push_back( 197cdf0e10cSrcweir new primitive2d::PolyPolygonColorPrimitive2D( 198cdf0e10cSrcweir a2DFill, 199cdf0e10cSrcweir maPrimitiveColor)); 200cdf0e10cSrcweir } 201cdf0e10cSrcweir } 202cdf0e10cSrcweir break; 203cdf0e10cSrcweir } 204cdf0e10cSrcweir default : 205cdf0e10cSrcweir { 206cdf0e10cSrcweir // process recursively 207cdf0e10cSrcweir process(rCandidate.get3DDecomposition(getViewInformation3D())); 208cdf0e10cSrcweir break; 209cdf0e10cSrcweir } 210cdf0e10cSrcweir } 211cdf0e10cSrcweir } 212cdf0e10cSrcweir Shadow3DExtractingProcessor(const geometry::ViewInformation3D & rViewInformation,const basegfx::B2DHomMatrix & rObjectTransformation,const basegfx::B3DVector & rLightNormal,double fShadowSlant,const basegfx::B3DRange & rContained3DRange)213cdf0e10cSrcweir Shadow3DExtractingProcessor::Shadow3DExtractingProcessor( 214cdf0e10cSrcweir const geometry::ViewInformation3D& rViewInformation, 215cdf0e10cSrcweir const basegfx::B2DHomMatrix& rObjectTransformation, 216cdf0e10cSrcweir const basegfx::B3DVector& rLightNormal, 217cdf0e10cSrcweir double fShadowSlant, 218cdf0e10cSrcweir const basegfx::B3DRange& rContained3DRange) 219cdf0e10cSrcweir : BaseProcessor3D(rViewInformation), 220cdf0e10cSrcweir maPrimitive2DSequence(), 221cdf0e10cSrcweir mpPrimitive2DSequence(&maPrimitive2DSequence), 222cdf0e10cSrcweir maObjectTransformation(rObjectTransformation), 223cdf0e10cSrcweir maWorldToEye(), 224cdf0e10cSrcweir maEyeToView(), 225cdf0e10cSrcweir maLightNormal(rLightNormal), 226cdf0e10cSrcweir maShadowPlaneNormal(), 227cdf0e10cSrcweir maPlanePoint(), 228cdf0e10cSrcweir mfLightPlaneScalar(0.0), 229cdf0e10cSrcweir maPrimitiveColor(), 230cdf0e10cSrcweir mbShadowProjectionIsValid(false), 231cdf0e10cSrcweir mbConvert(false), 232cdf0e10cSrcweir mbUseProjection(false) 233cdf0e10cSrcweir { 234cdf0e10cSrcweir // normalize light normal, get and normalize shadow plane normal and calculate scalar from it 235cdf0e10cSrcweir maLightNormal.normalize(); 236cdf0e10cSrcweir maShadowPlaneNormal = basegfx::B3DVector(0.0, sin(fShadowSlant), cos(fShadowSlant)); 237cdf0e10cSrcweir maShadowPlaneNormal.normalize(); 238cdf0e10cSrcweir mfLightPlaneScalar = maLightNormal.scalar(maShadowPlaneNormal); 239cdf0e10cSrcweir 240cdf0e10cSrcweir // use only when scalar is > 0.0, so the light is in front of the object 241cdf0e10cSrcweir if(basegfx::fTools::more(mfLightPlaneScalar, 0.0)) 242cdf0e10cSrcweir { 243cdf0e10cSrcweir // prepare buffered WorldToEye and EyeToView 244cdf0e10cSrcweir maWorldToEye = getViewInformation3D().getOrientation() * getViewInformation3D().getObjectTransformation(); 245cdf0e10cSrcweir maEyeToView = getViewInformation3D().getDeviceToView() * getViewInformation3D().getProjection(); 246cdf0e10cSrcweir 247cdf0e10cSrcweir // calculate range to get front edge around which to rotate the shadow's projection 248cdf0e10cSrcweir basegfx::B3DRange aContained3DRange(rContained3DRange); 249cdf0e10cSrcweir aContained3DRange.transform(getWorldToEye()); 250cdf0e10cSrcweir maPlanePoint.setX(maShadowPlaneNormal.getX() < 0.0 ? aContained3DRange.getMinX() : aContained3DRange.getMaxX()); 251cdf0e10cSrcweir maPlanePoint.setY(maShadowPlaneNormal.getY() > 0.0 ? aContained3DRange.getMinY() : aContained3DRange.getMaxY()); 252cdf0e10cSrcweir maPlanePoint.setZ(aContained3DRange.getMinZ() - (aContained3DRange.getDepth() / 8.0)); 253cdf0e10cSrcweir 254cdf0e10cSrcweir // set flag that shadow projection is prepared and allowed 255cdf0e10cSrcweir mbShadowProjectionIsValid = true; 256cdf0e10cSrcweir } 257cdf0e10cSrcweir } 258cdf0e10cSrcweir ~Shadow3DExtractingProcessor()259cdf0e10cSrcweir Shadow3DExtractingProcessor::~Shadow3DExtractingProcessor() 260cdf0e10cSrcweir { 261cdf0e10cSrcweir OSL_ENSURE(0 == maPrimitive2DSequence.size(), 262cdf0e10cSrcweir "OOps, someone used Shadow3DExtractingProcessor, but did not fetch the results (!)"); 263cdf0e10cSrcweir for(sal_uInt32 a(0); a < maPrimitive2DSequence.size(); a++) 264cdf0e10cSrcweir { 265cdf0e10cSrcweir delete maPrimitive2DSequence[a]; 266cdf0e10cSrcweir } 267cdf0e10cSrcweir } 268cdf0e10cSrcweir impDoShadowProjection(const basegfx::B3DPolygon & rSource)269cdf0e10cSrcweir basegfx::B2DPolygon Shadow3DExtractingProcessor::impDoShadowProjection(const basegfx::B3DPolygon& rSource) 270cdf0e10cSrcweir { 271cdf0e10cSrcweir basegfx::B2DPolygon aRetval; 272cdf0e10cSrcweir 273cdf0e10cSrcweir for(sal_uInt32 a(0L); a < rSource.count(); a++) 274cdf0e10cSrcweir { 275cdf0e10cSrcweir // get point, transform to eye coordinate system 276cdf0e10cSrcweir basegfx::B3DPoint aCandidate(rSource.getB3DPoint(a)); 277cdf0e10cSrcweir aCandidate *= getWorldToEye(); 278cdf0e10cSrcweir 279cdf0e10cSrcweir // we are in eye coordinates 280cdf0e10cSrcweir // ray is (aCandidate + fCut * maLightNormal) 281cdf0e10cSrcweir // plane is (maPlanePoint, maShadowPlaneNormal) 282cdf0e10cSrcweir // maLightNormal.scalar(maShadowPlaneNormal) is already in mfLightPlaneScalar and > 0.0 283cdf0e10cSrcweir // get cut point of ray with shadow plane 284cdf0e10cSrcweir const double fCut(basegfx::B3DVector(maPlanePoint - aCandidate).scalar(maShadowPlaneNormal) / mfLightPlaneScalar); 285cdf0e10cSrcweir aCandidate += maLightNormal * fCut; 286cdf0e10cSrcweir 287cdf0e10cSrcweir // transform to view, use 2d coordinates 288cdf0e10cSrcweir aCandidate *= getEyeToView(); 289cdf0e10cSrcweir aRetval.append(basegfx::B2DPoint(aCandidate.getX(), aCandidate.getY())); 290cdf0e10cSrcweir } 291cdf0e10cSrcweir 292cdf0e10cSrcweir // copy closed flag 293cdf0e10cSrcweir aRetval.setClosed(rSource.isClosed()); 294cdf0e10cSrcweir 295cdf0e10cSrcweir return aRetval; 296cdf0e10cSrcweir } 297cdf0e10cSrcweir impDoShadowProjection(const basegfx::B3DPolyPolygon & rSource)298cdf0e10cSrcweir basegfx::B2DPolyPolygon Shadow3DExtractingProcessor::impDoShadowProjection(const basegfx::B3DPolyPolygon& rSource) 299cdf0e10cSrcweir { 300cdf0e10cSrcweir basegfx::B2DPolyPolygon aRetval; 301cdf0e10cSrcweir 302cdf0e10cSrcweir for(sal_uInt32 a(0L); a < rSource.count(); a++) 303cdf0e10cSrcweir { 304cdf0e10cSrcweir aRetval.append(impDoShadowProjection(rSource.getB3DPolygon(a))); 305cdf0e10cSrcweir } 306cdf0e10cSrcweir 307cdf0e10cSrcweir return aRetval; 308cdf0e10cSrcweir } 309cdf0e10cSrcweir getPrimitive2DSequence() const310cdf0e10cSrcweir const primitive2d::Primitive2DSequence Shadow3DExtractingProcessor::getPrimitive2DSequence() const 311cdf0e10cSrcweir { 312*ddde725dSArmin Le Grand return Primitive2DVectorToPrimitive2DSequence(maPrimitive2DSequence); 313cdf0e10cSrcweir } 314cdf0e10cSrcweir 315cdf0e10cSrcweir } // end of namespace processor3d 316cdf0e10cSrcweir } // end of namespace drawinglayer 317cdf0e10cSrcweir 318cdf0e10cSrcweir ////////////////////////////////////////////////////////////////////////////// 319cdf0e10cSrcweir // eof 320