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| -rw-r--r-- | drawinglayer/source/primitive3d/sdrsphereprimitive3d.cxx | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/drawinglayer/source/primitive3d/sdrsphereprimitive3d.cxx b/drawinglayer/source/primitive3d/sdrsphereprimitive3d.cxx new file mode 100644 index 000000000..c3127261f --- /dev/null +++ b/drawinglayer/source/primitive3d/sdrsphereprimitive3d.cxx @@ -0,0 +1,205 @@ +/* -*- 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 <drawinglayer/primitive3d/sdrsphereprimitive3d.hxx> +#include <basegfx/polygon/b3dpolypolygontools.hxx> +#include <basegfx/matrix/b2dhommatrix.hxx> +#include <primitive3d/sdrdecompositiontools3d.hxx> +#include <drawinglayer/primitive3d/drawinglayer_primitivetypes3d.hxx> +#include <drawinglayer/attribute/sdrfillattribute.hxx> +#include <drawinglayer/attribute/sdrlineattribute.hxx> +#include <drawinglayer/attribute/sdrshadowattribute.hxx> + + +using namespace com::sun::star; + + +namespace drawinglayer::primitive3d +{ + Primitive3DContainer SdrSpherePrimitive3D::create3DDecomposition(const geometry::ViewInformation3D& /*rViewInformation*/) const + { + Primitive3DContainer aRetval; + const basegfx::B3DRange aUnitRange(0.0, 0.0, 0.0, 1.0, 1.0, 1.0); + const bool bCreateNormals(css::drawing::NormalsKind_SPECIFIC == getSdr3DObjectAttribute().getNormalsKind() + || css::drawing::NormalsKind_SPHERE == getSdr3DObjectAttribute().getNormalsKind()); + + // create unit geometry + basegfx::B3DPolyPolygon aFill(basegfx::utils::createSphereFillPolyPolygonFromB3DRange(aUnitRange, + getHorizontalSegments(), getVerticalSegments(), bCreateNormals)); + + // normal inversion + if(!getSdrLFSAttribute().getFill().isDefault() + && bCreateNormals + && getSdr3DObjectAttribute().getNormalsInvert() + && aFill.areNormalsUsed()) + { + // invert normals + aFill = basegfx::utils::invertNormals(aFill); + } + + // texture coordinates + if(!getSdrLFSAttribute().getFill().isDefault()) + { + // handle texture coordinates X + const bool bParallelX(css::drawing::TextureProjectionMode_PARALLEL == getSdr3DObjectAttribute().getTextureProjectionX()); + const bool bObjectSpecificX(css::drawing::TextureProjectionMode_OBJECTSPECIFIC == getSdr3DObjectAttribute().getTextureProjectionX()); + const bool bSphereX(css::drawing::TextureProjectionMode_SPHERE == getSdr3DObjectAttribute().getTextureProjectionX()); + + // handle texture coordinates Y + const bool bParallelY(css::drawing::TextureProjectionMode_PARALLEL == getSdr3DObjectAttribute().getTextureProjectionY()); + const bool bObjectSpecificY(css::drawing::TextureProjectionMode_OBJECTSPECIFIC == getSdr3DObjectAttribute().getTextureProjectionY()); + const bool bSphereY(css::drawing::TextureProjectionMode_SPHERE == getSdr3DObjectAttribute().getTextureProjectionY()); + + if(bParallelX || bParallelY) + { + // apply parallel texture coordinates in X and/or Y + const basegfx::B3DRange aRange(basegfx::utils::getRange(aFill)); + aFill = basegfx::utils::applyDefaultTextureCoordinatesParallel(aFill, aRange, bParallelX, bParallelY); + } + + if(bSphereX || bObjectSpecificX || bSphereY || bObjectSpecificY) + { + double fRelativeAngle(0.0); + + if(bObjectSpecificX) + { + // Since the texture coordinates are (for historical reasons) + // different from forced to sphere texture coordinates, + // create a old version from it by rotating to old state before applying + // the texture coordinates to emulate old behaviour + fRelativeAngle = 2 * M_PI * (static_cast<double>((getHorizontalSegments() >> 1) - 1) / static_cast<double>(getHorizontalSegments())); + basegfx::B3DHomMatrix aRot; + aRot.rotate(0.0, fRelativeAngle, 0.0); + aFill.transform(aRot); + } + + // apply spherical texture coordinates in X and/or Y + const basegfx::B3DRange aRange(basegfx::utils::getRange(aFill)); + const basegfx::B3DPoint aCenter(aRange.getCenter()); + aFill = basegfx::utils::applyDefaultTextureCoordinatesSphere(aFill, aCenter, + bSphereX || bObjectSpecificX, bSphereY || bObjectSpecificY); + + if(bObjectSpecificX) + { + // rotate back again + basegfx::B3DHomMatrix aRot; + aRot.rotate(0.0, -fRelativeAngle, 0.0); + aFill.transform(aRot); + } + } + + // transform texture coordinates to texture size + basegfx::B2DHomMatrix aTexMatrix; + aTexMatrix.scale(getTextureSize().getX(), getTextureSize().getY()); + aFill.transformTextureCoordinates(aTexMatrix); + } + + // build vector of PolyPolygons + std::vector< basegfx::B3DPolyPolygon > a3DPolyPolygonVector; + + for(sal_uInt32 a(0); a < aFill.count(); a++) + { + a3DPolyPolygonVector.emplace_back(aFill.getB3DPolygon(a)); + } + + if(!getSdrLFSAttribute().getFill().isDefault()) + { + // add fill + aRetval = create3DPolyPolygonFillPrimitives( + a3DPolyPolygonVector, + getTransform(), + getTextureSize(), + getSdr3DObjectAttribute(), + getSdrLFSAttribute().getFill(), + getSdrLFSAttribute().getFillFloatTransGradient()); + } + else + { + // create simplified 3d hit test geometry + aRetval = createHiddenGeometryPrimitives3D( + a3DPolyPolygonVector, + getTransform(), + getTextureSize(), + getSdr3DObjectAttribute()); + } + + // add line + if(!getSdrLFSAttribute().getLine().isDefault()) + { + basegfx::B3DPolyPolygon aSphere(basegfx::utils::createSpherePolyPolygonFromB3DRange(aUnitRange, getHorizontalSegments(), getVerticalSegments())); + const Primitive3DContainer aLines(create3DPolyPolygonLinePrimitives( + aSphere, getTransform(), getSdrLFSAttribute().getLine())); + aRetval.append(aLines); + } + + // add shadow + if(!getSdrLFSAttribute().getShadow().isDefault() + && !aRetval.empty()) + { + const Primitive3DContainer aShadow(createShadowPrimitive3D( + aRetval, getSdrLFSAttribute().getShadow(), getSdr3DObjectAttribute().getShadow3D())); + aRetval.append(aShadow); + } + + return aRetval; + } + + SdrSpherePrimitive3D::SdrSpherePrimitive3D( + const basegfx::B3DHomMatrix& rTransform, + const basegfx::B2DVector& rTextureSize, + const attribute::SdrLineFillShadowAttribute3D& rSdrLFSAttribute, + const attribute::Sdr3DObjectAttribute& rSdr3DObjectAttribute, + sal_uInt32 nHorizontalSegments, + sal_uInt32 nVerticalSegments) + : SdrPrimitive3D(rTransform, rTextureSize, rSdrLFSAttribute, rSdr3DObjectAttribute), + mnHorizontalSegments(nHorizontalSegments), + mnVerticalSegments(nVerticalSegments) + { + } + + bool SdrSpherePrimitive3D::operator==(const BasePrimitive3D& rPrimitive) const + { + if(SdrPrimitive3D::operator==(rPrimitive)) + { + const SdrSpherePrimitive3D& rCompare = static_cast< const SdrSpherePrimitive3D& >(rPrimitive); + + return (getHorizontalSegments() == rCompare.getHorizontalSegments() + && getVerticalSegments() == rCompare.getVerticalSegments()); + } + + return false; + } + + basegfx::B3DRange SdrSpherePrimitive3D::getB3DRange(const geometry::ViewInformation3D& /*rViewInformation*/) const + { + // use default from sdrPrimitive3D which uses transformation expanded by line width/2 + // The parent implementation which uses the ranges of the decomposition would be more + // correct, but for historical reasons it is necessary to do the old method: To get + // the range of the non-transformed geometry and transform it then. This leads to different + // ranges where the new method is more correct, but the need to keep the old behaviour + // has priority here. + return getStandard3DRange(); + } + + // provide unique ID + ImplPrimitive3DIDBlock(SdrSpherePrimitive3D, PRIMITIVE3D_ID_SDRSPHEREPRIMITIVE3D) + +} // end of namespace + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |