drawinglayer/source/primitive3d/sdrsphereprimitive3d.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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   9  * This file incorporates work covered by the following license notice:
  10  *
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  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <drawinglayer/primitive3d/sdrsphereprimitive3d.hxx>
  21 #include <basegfx/polygon/b3dpolypolygontools.hxx>
  22 #include <basegfx/matrix/b2dhommatrix.hxx>
  23 #include <basegfx/polygon/b3dpolygon.hxx>
  24 #include <drawinglayer/primitive3d/sdrdecompositiontools3d.hxx>
  25 #include <basegfx/utils/canvastools.hxx>
  26 #include <drawinglayer/primitive3d/drawinglayer_primitivetypes3d.hxx>
  27 #include <drawinglayer/attribute/sdrfillattribute.hxx>
  28 #include <drawinglayer/attribute/sdrlineattribute.hxx>
  29 #include <drawinglayer/attribute/sdrshadowattribute.hxx>
  30
  31
  32 using namespace com::sun::star;
  33
  34
  35 namespace drawinglayer
  36 {
  37     namespace primitive3d
  38     {
  39         Primitive3DContainer SdrSpherePrimitive3D::create3DDecomposition(const geometry::ViewInformation3D& /*rViewInformation*/) const
  40         {
  41             Primitive3DContainer aRetval;
  42             const basegfx::B3DRange aUnitRange(0.0, 0.0, 0.0, 1.0, 1.0, 1.0);
  43             const bool bCreateNormals(css::drawing::NormalsKind_SPECIFIC == getSdr3DObjectAttribute().getNormalsKind()
  44                 || css::drawing::NormalsKind_SPHERE == getSdr3DObjectAttribute().getNormalsKind());
  45
  46             // create unit geometry
  47             basegfx::B3DPolyPolygon aFill(basegfx::utils::createSphereFillPolyPolygonFromB3DRange(aUnitRange,
  48                 getHorizontalSegments(), getVerticalSegments(), bCreateNormals));
  49
  50             // normal inversion
  51             if(!getSdrLFSAttribute().getFill().isDefault()
  52                 && bCreateNormals
  53                 && getSdr3DObjectAttribute().getNormalsInvert()
  54                 && aFill.areNormalsUsed())
  55             {
  56                 // invert normals
  57                 aFill = basegfx::utils::invertNormals(aFill);
  58             }
  59
  60             // texture coordinates
  61             if(!getSdrLFSAttribute().getFill().isDefault())
  62             {
  63                 // handle texture coordinates X
  64                 const bool bParallelX(css::drawing::TextureProjectionMode_PARALLEL == getSdr3DObjectAttribute().getTextureProjectionX());
  65                 const bool bObjectSpecificX(css::drawing::TextureProjectionMode_OBJECTSPECIFIC == getSdr3DObjectAttribute().getTextureProjectionX());
  66                 const bool bSphereX(css::drawing::TextureProjectionMode_SPHERE == getSdr3DObjectAttribute().getTextureProjectionX());
  67
  68                 // handle texture coordinates Y
  69                 const bool bParallelY(css::drawing::TextureProjectionMode_PARALLEL == getSdr3DObjectAttribute().getTextureProjectionY());
  70                 const bool bObjectSpecificY(css::drawing::TextureProjectionMode_OBJECTSPECIFIC == getSdr3DObjectAttribute().getTextureProjectionY());
  71                 const bool bSphereY(css::drawing::TextureProjectionMode_SPHERE == getSdr3DObjectAttribute().getTextureProjectionY());
  72
  73                 if(bParallelX || bParallelY)
  74                 {
  75                     // apply parallel texture coordinates in X and/or Y
  76                     const basegfx::B3DRange aRange(basegfx::utils::getRange(aFill));
  77                     aFill = basegfx::utils::applyDefaultTextureCoordinatesParallel(aFill, aRange, bParallelX, bParallelY);
  78                 }
  79
  80                 if(bSphereX || bObjectSpecificX || bSphereY || bObjectSpecificY)
  81                 {
  82                     double fRelativeAngle(0.0);
  83
  84                     if(bObjectSpecificX)
  85                     {
  86                         // Since the texture coordinates are (for historical reasons)
  87                         // different from forced to sphere texture coordinates,
  88                         // create a old version from it by rotating to old state before applying
  89                         // the texture coordinates to emulate old behaviour
  90                         fRelativeAngle = F_2PI * (static_cast<double>((getHorizontalSegments() >> 1)  - 1) / static_cast<double>(getHorizontalSegments()));
  91                         basegfx::B3DHomMatrix aRot;
  92                         aRot.rotate(0.0, fRelativeAngle, 0.0);
  93                         aFill.transform(aRot);
  94                     }
  95
  96                     // apply spherical texture coordinates in X and/or Y
  97                     const basegfx::B3DRange aRange(basegfx::utils::getRange(aFill));
  98                     const basegfx::B3DPoint aCenter(aRange.getCenter());
  99                     aFill = basegfx::utils::applyDefaultTextureCoordinatesSphere(aFill, aCenter,
 100                         bSphereX || bObjectSpecificX, bSphereY || bObjectSpecificY);
 101
 102                     if(bObjectSpecificX)
 103                     {
 104                         // rotate back again
 105                         basegfx::B3DHomMatrix aRot;
 106                         aRot.rotate(0.0, -fRelativeAngle, 0.0);
 107                         aFill.transform(aRot);
 108                     }
 109                 }
 110
 111                 // transform texture coordinates to texture size
 112                 basegfx::B2DHomMatrix aTexMatrix;
 113                 aTexMatrix.scale(getTextureSize().getX(), getTextureSize().getY());
 114                 aFill.transformTextureCoordinates(aTexMatrix);
 115             }
 116
 117             // build vector of PolyPolygons
 118             std::vector< basegfx::B3DPolyPolygon > a3DPolyPolygonVector;
 119
 120             for(sal_uInt32 a(0); a < aFill.count(); a++)
 121             {
 122                 a3DPolyPolygonVector.emplace_back(aFill.getB3DPolygon(a));
 123             }
 124
 125             if(!getSdrLFSAttribute().getFill().isDefault())
 126             {
 127                 // add fill
 128                 aRetval = create3DPolyPolygonFillPrimitives(
 129                     a3DPolyPolygonVector,
 130                     getTransform(),
 131                     getTextureSize(),
 132                     getSdr3DObjectAttribute(),
 133                     getSdrLFSAttribute().getFill(),
 134                     getSdrLFSAttribute().getFillFloatTransGradient());
 135             }
 136             else
 137             {
 138                 // create simplified 3d hit test geometry
 139                 aRetval = createHiddenGeometryPrimitives3D(
 140                     a3DPolyPolygonVector,
 141                     getTransform(),
 142                     getTextureSize(),
 143                     getSdr3DObjectAttribute());
 144             }
 145
 146             // add line
 147             if(!getSdrLFSAttribute().getLine().isDefault())
 148             {
 149                 basegfx::B3DPolyPolygon aSphere(basegfx::utils::createSpherePolyPolygonFromB3DRange(aUnitRange, getHorizontalSegments(), getVerticalSegments()));
 150                 const Primitive3DContainer aLines(create3DPolyPolygonLinePrimitives(
 151                     aSphere, getTransform(), getSdrLFSAttribute().getLine()));
 152                 aRetval.append(aLines);
 153             }
 154
 155             // add shadow
 156             if(!getSdrLFSAttribute().getShadow().isDefault()
 157                 && !aRetval.empty())
 158             {
 159                 const Primitive3DContainer aShadow(createShadowPrimitive3D(
 160                     aRetval, getSdrLFSAttribute().getShadow(), getSdr3DObjectAttribute().getShadow3D()));
 161                 aRetval.append(aShadow);
 162             }
 163
 164             return aRetval;
 165         }
 166
 167         SdrSpherePrimitive3D::SdrSpherePrimitive3D(
 168             const basegfx::B3DHomMatrix& rTransform,
 169             const basegfx::B2DVector& rTextureSize,
 170             const attribute::SdrLineFillShadowAttribute3D& rSdrLFSAttribute,
 171             const attribute::Sdr3DObjectAttribute& rSdr3DObjectAttribute,
 172             sal_uInt32 nHorizontalSegments,
 173             sal_uInt32 nVerticalSegments)
 174         :   SdrPrimitive3D(rTransform, rTextureSize, rSdrLFSAttribute, rSdr3DObjectAttribute),
 175             mnHorizontalSegments(nHorizontalSegments),
 176             mnVerticalSegments(nVerticalSegments)
 177         {
 178         }
 179
 180         bool SdrSpherePrimitive3D::operator==(const BasePrimitive3D& rPrimitive) const
 181         {
 182             if(SdrPrimitive3D::operator==(rPrimitive))
 183             {
 184                 const SdrSpherePrimitive3D& rCompare = static_cast< const SdrSpherePrimitive3D& >(rPrimitive);
 185
 186                 return (getHorizontalSegments() == rCompare.getHorizontalSegments()
 187                     && getVerticalSegments() == rCompare.getVerticalSegments());
 188             }
 189
 190             return false;
 191         }
 192
 193         basegfx::B3DRange SdrSpherePrimitive3D::getB3DRange(const geometry::ViewInformation3D& /*rViewInformation*/) const
 194         {
 195             // use default from sdrPrimitive3D which uses transformation expanded by line width/2
 196             // The parent implementation which uses the ranges of the decomposition would be more
 197             // correct, but for historical reasons it is necessary to do the old method: To get
 198             // the range of the non-transformed geometry and transform it then. This leads to different
 199             // ranges where the new method is more correct, but the need to keep the old behaviour
 200             // has priority here.
 201             return getStandard3DRange();
 202         }
 203
 204         // provide unique ID
 205         ImplPrimitive3DIDBlock(SdrSpherePrimitive3D, PRIMITIVE3D_ID_SDRSPHEREPRIMITIVE3D)
 206
 207     } // end of namespace primitive3d
 208 } // end of namespace drawinglayer
 209
 210 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */