| /************************************************************** |
| * |
| * 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 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| // MARKER(update_precomp.py): autogen include statement, do not remove |
| #include "precompiled_drawinglayer.hxx" |
| |
| #include <drawinglayer/processor3d/shadow3dextractor.hxx> |
| #include <drawinglayer/primitive3d/shadowprimitive3d.hxx> |
| #include <drawinglayer/primitive2d/shadowprimitive2d.hxx> |
| #include <drawinglayer/primitive2d/unifiedtransparenceprimitive2d.hxx> |
| #include <drawinglayer/primitive3d/transformprimitive3d.hxx> |
| #include <drawinglayer/primitive3d/polygonprimitive3d.hxx> |
| #include <basegfx/polygon/b2dpolygontools.hxx> |
| #include <drawinglayer/primitive2d/polygonprimitive2d.hxx> |
| #include <drawinglayer/primitive3d/polypolygonprimitive3d.hxx> |
| #include <basegfx/polygon/b2dpolypolygontools.hxx> |
| #include <drawinglayer/primitive2d/polypolygonprimitive2d.hxx> |
| #include <drawinglayer/primitive3d/drawinglayer_primitivetypes3d.hxx> |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| using namespace com::sun::star; |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| namespace drawinglayer |
| { |
| namespace processor3d |
| { |
| // as tooling, the process() implementation takes over API handling and calls this |
| // virtual render method when the primitive implementation is BasePrimitive3D-based. |
| void Shadow3DExtractingProcessor::processBasePrimitive3D(const primitive3d::BasePrimitive3D& rCandidate) |
| { |
| // it is a BasePrimitive3D implementation, use getPrimitive3DID() call for switch |
| switch(rCandidate.getPrimitive3DID()) |
| { |
| case PRIMITIVE3D_ID_SHADOWPRIMITIVE3D : |
| { |
| // shadow3d object. Call recursive with content and start conversion |
| const primitive3d::ShadowPrimitive3D& rPrimitive = static_cast< const primitive3d::ShadowPrimitive3D& >(rCandidate); |
| |
| // set new target |
| primitive2d::Primitive2DVector aNewSubList; |
| primitive2d::Primitive2DVector* pLastTargetSequence = mpPrimitive2DSequence; |
| mpPrimitive2DSequence = &aNewSubList; |
| |
| // activate convert |
| const bool bLastConvert(mbConvert); |
| mbConvert = true; |
| |
| // set projection flag |
| const bool bLastUseProjection(mbUseProjection); |
| mbUseProjection = rPrimitive.getShadow3D(); |
| |
| // process content |
| process(rPrimitive.getChildren()); |
| |
| // restore values |
| mbUseProjection = bLastUseProjection; |
| mbConvert = bLastConvert; |
| mpPrimitive2DSequence = pLastTargetSequence; |
| |
| // create 2d shadow primitive with result. This also fetches all entries |
| // from aNewSubList, so there is no need to delete them |
| primitive2d::BasePrimitive2D* pNew = new primitive2d::ShadowPrimitive2D( |
| rPrimitive.getShadowTransform(), |
| rPrimitive.getShadowColor(), |
| primitive2d::Primitive2DVectorToPrimitive2DSequence(aNewSubList)); |
| |
| if(basegfx::fTools::more(rPrimitive.getShadowTransparence(), 0.0)) |
| { |
| // create simpleTransparencePrimitive, add created primitives |
| const primitive2d::Primitive2DReference xRef(pNew); |
| const primitive2d::Primitive2DSequence aNewTransPrimitiveVector(&xRef, 1); |
| |
| pNew = new primitive2d::UnifiedTransparencePrimitive2D( |
| aNewTransPrimitiveVector, |
| rPrimitive.getShadowTransparence()); |
| } |
| |
| mpPrimitive2DSequence->push_back(pNew); |
| |
| break; |
| } |
| case PRIMITIVE3D_ID_TRANSFORMPRIMITIVE3D : |
| { |
| // transform group. Remember current transformations |
| const primitive3d::TransformPrimitive3D& rPrimitive = static_cast< const primitive3d::TransformPrimitive3D& >(rCandidate); |
| const geometry::ViewInformation3D aLastViewInformation3D(getViewInformation3D()); |
| |
| // create new transformation; add new object transform from right side |
| const geometry::ViewInformation3D aNewViewInformation3D( |
| aLastViewInformation3D.getObjectTransformation() * rPrimitive.getTransformation(), |
| aLastViewInformation3D.getOrientation(), |
| aLastViewInformation3D.getProjection(), |
| aLastViewInformation3D.getDeviceToView(), |
| aLastViewInformation3D.getViewTime(), |
| aLastViewInformation3D.getExtendedInformationSequence()); |
| updateViewInformation(aNewViewInformation3D); |
| |
| if(mbShadowProjectionIsValid) |
| { |
| // update buffered WorldToEye and EyeToView |
| maWorldToEye = getViewInformation3D().getOrientation() * getViewInformation3D().getObjectTransformation(); |
| maEyeToView = getViewInformation3D().getDeviceToView() * getViewInformation3D().getProjection(); |
| } |
| |
| // let break down |
| process(rPrimitive.getChildren()); |
| |
| // restore transformations |
| updateViewInformation(aLastViewInformation3D); |
| |
| if(mbShadowProjectionIsValid) |
| { |
| // update buffered WorldToEye and EyeToView |
| maWorldToEye = getViewInformation3D().getOrientation() * getViewInformation3D().getObjectTransformation(); |
| maEyeToView = getViewInformation3D().getDeviceToView() * getViewInformation3D().getProjection(); |
| } |
| break; |
| } |
| case PRIMITIVE3D_ID_POLYGONHAIRLINEPRIMITIVE3D : |
| { |
| // PolygonHairlinePrimitive3D |
| if(mbConvert) |
| { |
| const primitive3d::PolygonHairlinePrimitive3D& rPrimitive = static_cast< const primitive3d::PolygonHairlinePrimitive3D& >(rCandidate); |
| basegfx::B2DPolygon a2DHairline; |
| |
| if(mbUseProjection) |
| { |
| if(mbShadowProjectionIsValid) |
| { |
| a2DHairline = impDoShadowProjection(rPrimitive.getB3DPolygon()); |
| } |
| } |
| else |
| { |
| a2DHairline = basegfx::tools::createB2DPolygonFromB3DPolygon(rPrimitive.getB3DPolygon(), getViewInformation3D().getObjectToView()); |
| } |
| |
| if(a2DHairline.count()) |
| { |
| a2DHairline.transform(getObjectTransformation()); |
| mpPrimitive2DSequence->push_back( |
| new primitive2d::PolygonHairlinePrimitive2D( |
| a2DHairline, |
| maPrimitiveColor)); |
| } |
| } |
| break; |
| } |
| case PRIMITIVE3D_ID_POLYPOLYGONMATERIALPRIMITIVE3D : |
| { |
| // PolyPolygonMaterialPrimitive3D |
| if(mbConvert) |
| { |
| const primitive3d::PolyPolygonMaterialPrimitive3D& rPrimitive = static_cast< const primitive3d::PolyPolygonMaterialPrimitive3D& >(rCandidate); |
| basegfx::B2DPolyPolygon a2DFill; |
| |
| if(mbUseProjection) |
| { |
| if(mbShadowProjectionIsValid) |
| { |
| a2DFill = impDoShadowProjection(rPrimitive.getB3DPolyPolygon()); |
| } |
| } |
| else |
| { |
| a2DFill = basegfx::tools::createB2DPolyPolygonFromB3DPolyPolygon(rPrimitive.getB3DPolyPolygon(), getViewInformation3D().getObjectToView()); |
| } |
| |
| if(a2DFill.count()) |
| { |
| a2DFill.transform(getObjectTransformation()); |
| mpPrimitive2DSequence->push_back( |
| new primitive2d::PolyPolygonColorPrimitive2D( |
| a2DFill, |
| maPrimitiveColor)); |
| } |
| } |
| break; |
| } |
| default : |
| { |
| // process recursively |
| process(rCandidate.get3DDecomposition(getViewInformation3D())); |
| break; |
| } |
| } |
| } |
| |
| Shadow3DExtractingProcessor::Shadow3DExtractingProcessor( |
| const geometry::ViewInformation3D& rViewInformation, |
| const basegfx::B2DHomMatrix& rObjectTransformation, |
| const basegfx::B3DVector& rLightNormal, |
| double fShadowSlant, |
| const basegfx::B3DRange& rContained3DRange) |
| : BaseProcessor3D(rViewInformation), |
| maPrimitive2DSequence(), |
| mpPrimitive2DSequence(&maPrimitive2DSequence), |
| maObjectTransformation(rObjectTransformation), |
| maWorldToEye(), |
| maEyeToView(), |
| maLightNormal(rLightNormal), |
| maShadowPlaneNormal(), |
| maPlanePoint(), |
| mfLightPlaneScalar(0.0), |
| maPrimitiveColor(), |
| mbShadowProjectionIsValid(false), |
| mbConvert(false), |
| mbUseProjection(false) |
| { |
| // normalize light normal, get and normalize shadow plane normal and calculate scalar from it |
| maLightNormal.normalize(); |
| maShadowPlaneNormal = basegfx::B3DVector(0.0, sin(fShadowSlant), cos(fShadowSlant)); |
| maShadowPlaneNormal.normalize(); |
| mfLightPlaneScalar = maLightNormal.scalar(maShadowPlaneNormal); |
| |
| // use only when scalar is > 0.0, so the light is in front of the object |
| if(basegfx::fTools::more(mfLightPlaneScalar, 0.0)) |
| { |
| // prepare buffered WorldToEye and EyeToView |
| maWorldToEye = getViewInformation3D().getOrientation() * getViewInformation3D().getObjectTransformation(); |
| maEyeToView = getViewInformation3D().getDeviceToView() * getViewInformation3D().getProjection(); |
| |
| // calculate range to get front edge around which to rotate the shadow's projection |
| basegfx::B3DRange aContained3DRange(rContained3DRange); |
| aContained3DRange.transform(getWorldToEye()); |
| maPlanePoint.setX(maShadowPlaneNormal.getX() < 0.0 ? aContained3DRange.getMinX() : aContained3DRange.getMaxX()); |
| maPlanePoint.setY(maShadowPlaneNormal.getY() > 0.0 ? aContained3DRange.getMinY() : aContained3DRange.getMaxY()); |
| maPlanePoint.setZ(aContained3DRange.getMinZ() - (aContained3DRange.getDepth() / 8.0)); |
| |
| // set flag that shadow projection is prepared and allowed |
| mbShadowProjectionIsValid = true; |
| } |
| } |
| |
| Shadow3DExtractingProcessor::~Shadow3DExtractingProcessor() |
| { |
| OSL_ENSURE(0 == maPrimitive2DSequence.size(), |
| "OOps, someone used Shadow3DExtractingProcessor, but did not fetch the results (!)"); |
| for(sal_uInt32 a(0); a < maPrimitive2DSequence.size(); a++) |
| { |
| delete maPrimitive2DSequence[a]; |
| } |
| } |
| |
| basegfx::B2DPolygon Shadow3DExtractingProcessor::impDoShadowProjection(const basegfx::B3DPolygon& rSource) |
| { |
| basegfx::B2DPolygon aRetval; |
| |
| for(sal_uInt32 a(0L); a < rSource.count(); a++) |
| { |
| // get point, transform to eye coordinate system |
| basegfx::B3DPoint aCandidate(rSource.getB3DPoint(a)); |
| aCandidate *= getWorldToEye(); |
| |
| // we are in eye coordinates |
| // ray is (aCandidate + fCut * maLightNormal) |
| // plane is (maPlanePoint, maShadowPlaneNormal) |
| // maLightNormal.scalar(maShadowPlaneNormal) is already in mfLightPlaneScalar and > 0.0 |
| // get cut point of ray with shadow plane |
| const double fCut(basegfx::B3DVector(maPlanePoint - aCandidate).scalar(maShadowPlaneNormal) / mfLightPlaneScalar); |
| aCandidate += maLightNormal * fCut; |
| |
| // transform to view, use 2d coordinates |
| aCandidate *= getEyeToView(); |
| aRetval.append(basegfx::B2DPoint(aCandidate.getX(), aCandidate.getY())); |
| } |
| |
| // copy closed flag |
| aRetval.setClosed(rSource.isClosed()); |
| |
| return aRetval; |
| } |
| |
| basegfx::B2DPolyPolygon Shadow3DExtractingProcessor::impDoShadowProjection(const basegfx::B3DPolyPolygon& rSource) |
| { |
| basegfx::B2DPolyPolygon aRetval; |
| |
| for(sal_uInt32 a(0L); a < rSource.count(); a++) |
| { |
| aRetval.append(impDoShadowProjection(rSource.getB3DPolygon(a))); |
| } |
| |
| return aRetval; |
| } |
| |
| const primitive2d::Primitive2DSequence Shadow3DExtractingProcessor::getPrimitive2DSequence() const |
| { |
| return Primitive2DVectorToPrimitive2DSequence(maPrimitive2DSequence); |
| } |
| |
| } // end of namespace processor3d |
| } // end of namespace drawinglayer |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| // eof |
