| /************************************************************** |
| * |
| * 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/attribute/sdrlightingattribute3d.hxx> |
| #include <basegfx/color/bcolor.hxx> |
| #include <basegfx/vector/b3dvector.hxx> |
| #include <drawinglayer/attribute/sdrlightattribute3d.hxx> |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| namespace drawinglayer |
| { |
| namespace attribute |
| { |
| class ImpSdrLightingAttribute |
| { |
| public: |
| // refcounter |
| sal_uInt32 mnRefCount; |
| |
| // 3D light attribute definitions |
| basegfx::BColor maAmbientLight; |
| ::std::vector< Sdr3DLightAttribute > maLightVector; |
| |
| ImpSdrLightingAttribute( |
| const basegfx::BColor& rAmbientLight, |
| const ::std::vector< Sdr3DLightAttribute >& rLightVector) |
| : mnRefCount(0), |
| maAmbientLight(rAmbientLight), |
| maLightVector(rLightVector) |
| { |
| } |
| |
| // data read access |
| const basegfx::BColor& getAmbientLight() const { return maAmbientLight; } |
| const ::std::vector< Sdr3DLightAttribute >& getLightVector() const { return maLightVector; } |
| |
| bool operator==(const ImpSdrLightingAttribute& rCandidate) const |
| { |
| return (getAmbientLight() == rCandidate.getAmbientLight() |
| && getLightVector() == rCandidate.getLightVector()); |
| } |
| |
| static ImpSdrLightingAttribute* get_global_default() |
| { |
| static ImpSdrLightingAttribute* pDefault = 0; |
| |
| if(!pDefault) |
| { |
| pDefault = new ImpSdrLightingAttribute( |
| basegfx::BColor(), |
| std::vector< Sdr3DLightAttribute >()); |
| |
| // never delete; start with RefCount 1, not 0 |
| pDefault->mnRefCount++; |
| } |
| |
| return pDefault; |
| } |
| }; |
| |
| SdrLightingAttribute::SdrLightingAttribute( |
| const basegfx::BColor& rAmbientLight, |
| const ::std::vector< Sdr3DLightAttribute >& rLightVector) |
| : mpSdrLightingAttribute(new ImpSdrLightingAttribute( |
| rAmbientLight, rLightVector)) |
| { |
| } |
| |
| SdrLightingAttribute::SdrLightingAttribute() |
| : mpSdrLightingAttribute(ImpSdrLightingAttribute::get_global_default()) |
| { |
| mpSdrLightingAttribute->mnRefCount++; |
| } |
| |
| SdrLightingAttribute::SdrLightingAttribute(const SdrLightingAttribute& rCandidate) |
| : mpSdrLightingAttribute(rCandidate.mpSdrLightingAttribute) |
| { |
| mpSdrLightingAttribute->mnRefCount++; |
| } |
| |
| SdrLightingAttribute::~SdrLightingAttribute() |
| { |
| if(mpSdrLightingAttribute->mnRefCount) |
| { |
| mpSdrLightingAttribute->mnRefCount--; |
| } |
| else |
| { |
| delete mpSdrLightingAttribute; |
| } |
| } |
| |
| bool SdrLightingAttribute::isDefault() const |
| { |
| return mpSdrLightingAttribute == ImpSdrLightingAttribute::get_global_default(); |
| } |
| |
| SdrLightingAttribute& SdrLightingAttribute::operator=(const SdrLightingAttribute& rCandidate) |
| { |
| if(rCandidate.mpSdrLightingAttribute != mpSdrLightingAttribute) |
| { |
| if(mpSdrLightingAttribute->mnRefCount) |
| { |
| mpSdrLightingAttribute->mnRefCount--; |
| } |
| else |
| { |
| delete mpSdrLightingAttribute; |
| } |
| |
| mpSdrLightingAttribute = rCandidate.mpSdrLightingAttribute; |
| mpSdrLightingAttribute->mnRefCount++; |
| } |
| |
| return *this; |
| } |
| |
| bool SdrLightingAttribute::operator==(const SdrLightingAttribute& rCandidate) const |
| { |
| if(rCandidate.mpSdrLightingAttribute == mpSdrLightingAttribute) |
| { |
| return true; |
| } |
| |
| if(rCandidate.isDefault() != isDefault()) |
| { |
| return false; |
| } |
| |
| return (*rCandidate.mpSdrLightingAttribute == *mpSdrLightingAttribute); |
| } |
| |
| const basegfx::BColor& SdrLightingAttribute::getAmbientLight() const |
| { |
| return mpSdrLightingAttribute->getAmbientLight(); |
| } |
| |
| const ::std::vector< Sdr3DLightAttribute >& SdrLightingAttribute::getLightVector() const |
| { |
| return mpSdrLightingAttribute->getLightVector(); |
| } |
| |
| // color model solver |
| basegfx::BColor SdrLightingAttribute::solveColorModel( |
| const basegfx::B3DVector& rNormalInEyeCoordinates, |
| const basegfx::BColor& rColor, const basegfx::BColor& rSpecular, |
| const basegfx::BColor& rEmission, sal_uInt16 nSpecularIntensity) const |
| { |
| // initialize with emissive color |
| basegfx::BColor aRetval(rEmission); |
| |
| // take care of global ambient light |
| aRetval += mpSdrLightingAttribute->getAmbientLight() * rColor; |
| |
| // prepare light access. Is there a light? |
| const sal_uInt32 nLightCount(mpSdrLightingAttribute->getLightVector().size()); |
| |
| if(nLightCount && !rNormalInEyeCoordinates.equalZero()) |
| { |
| // prepare normal |
| basegfx::B3DVector aEyeNormal(rNormalInEyeCoordinates); |
| aEyeNormal.normalize(); |
| |
| for(sal_uInt32 a(0L); a < nLightCount; a++) |
| { |
| const Sdr3DLightAttribute& rLight(mpSdrLightingAttribute->getLightVector()[a]); |
| const double fCosFac(rLight.getDirection().scalar(aEyeNormal)); |
| |
| if(basegfx::fTools::more(fCosFac, 0.0)) |
| { |
| aRetval += ((rLight.getColor() * rColor) * fCosFac); |
| |
| if(rLight.getSpecular()) |
| { |
| // expand by (0.0, 0.0, 1.0) in Z |
| basegfx::B3DVector aSpecularNormal(rLight.getDirection().getX(), rLight.getDirection().getY(), rLight.getDirection().getZ() + 1.0); |
| aSpecularNormal.normalize(); |
| double fCosFac2(aSpecularNormal.scalar(aEyeNormal)); |
| |
| if(basegfx::fTools::more(fCosFac2, 0.0)) |
| { |
| fCosFac2 = pow(fCosFac2, (double)nSpecularIntensity); |
| aRetval += (rSpecular * fCosFac2); |
| } |
| } |
| } |
| } |
| } |
| |
| // clamp to color space before usage |
| aRetval.clamp(); |
| |
| return aRetval; |
| } |
| } // end of namespace attribute |
| } // end of namespace drawinglayer |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| // eof |
