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-rw-r--r--drawinglayer/source/primitive3d/sdrsphereprimitive3d.cxx205
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diff --git a/drawinglayer/source/primitive3d/sdrsphereprimitive3d.cxx b/drawinglayer/source/primitive3d/sdrsphereprimitive3d.cxx
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+/* -*- 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: */