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Diffstat (limited to 'drawinglayer/source/attribute/sdrlightingattribute3d.cxx')
| -rw-r--r-- | drawinglayer/source/attribute/sdrlightingattribute3d.cxx | 232 |
1 files changed, 232 insertions, 0 deletions
diff --git a/drawinglayer/source/attribute/sdrlightingattribute3d.cxx b/drawinglayer/source/attribute/sdrlightingattribute3d.cxx new file mode 100644 index 000000000000..06d814b72d9d --- /dev/null +++ b/drawinglayer/source/attribute/sdrlightingattribute3d.cxx @@ -0,0 +1,232 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/************************************************************************* + * + * OpenOffice.org - a multi-platform office productivity suite + * + * The Contents of this file are made available subject to + * the terms of GNU Lesser General Public License Version 2.1. + * + * + * GNU Lesser General Public License Version 2.1 + * ============================================= + * Copyright 2005 by Sun Microsystems, Inc. + * 901 San Antonio Road, Palo Alto, CA 94303, USA + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License version 2.1, as published by the Free Software Foundation. + * + * This library 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 for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + ************************************************************************/ + +// 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 + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |