drawinglayer/source/primitive2d/fillhatchprimitive2d.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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  18  */
  19
  20 #include <drawinglayer/primitive2d/fillhatchprimitive2d.hxx>
  21 #include <texture/texture.hxx>
  22 #include <drawinglayer/primitive2d/PolyPolygonColorPrimitive2D.hxx>
  23 #include <basegfx/polygon/b2dpolygontools.hxx>
  24 #include <basegfx/polygon/b2dpolygon.hxx>
  25 #include <drawinglayer/primitive2d/polygonprimitive2d.hxx>
  26 #include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
  27 #include <drawinglayer/geometry/viewinformation2d.hxx>
  28
  29
  30 using namespace com::sun::star;
  31
  32
  33 namespace drawinglayer::primitive2d
  34 {
  35         void FillHatchPrimitive2D::create2DDecomposition(Primitive2DContainer& rContainer, const geometry::ViewInformation2D& /*rViewInformation*/) const
  36         {
  37             if(getFillHatch().isDefault())
  38                 return;
  39
  40             // create hatch
  41             const basegfx::BColor aHatchColor(getFillHatch().getColor());
  42             const double fAngle(getFillHatch().getAngle());
  43             std::vector< basegfx::B2DHomMatrix > aMatrices;
  44             double fDistance(getFillHatch().getDistance());
  45             const bool bAdaptDistance(0 != getFillHatch().getMinimalDiscreteDistance());
  46
  47             // #i120230# evtl. adapt distance
  48             if(bAdaptDistance)
  49             {
  50                 const double fDiscreteDistance(getFillHatch().getDistance() / getDiscreteUnit());
  51
  52                 if(fDiscreteDistance < static_cast<double>(getFillHatch().getMinimalDiscreteDistance()))
  53                 {
  54                     fDistance = static_cast<double>(getFillHatch().getMinimalDiscreteDistance()) * getDiscreteUnit();
  55                 }
  56             }
  57
  58             // get hatch transformations
  59             switch(getFillHatch().getStyle())
  60             {
  61                 case attribute::HatchStyle::Triple:
  62                 {
  63                     // rotated 45 degrees
  64                     texture::GeoTexSvxHatch aHatch(
  65                         getDefinitionRange(),
  66                         getOutputRange(),
  67                         fDistance,
  68                         fAngle - F_PI4);
  69
  70                     aHatch.appendTransformations(aMatrices);
  71
  72                     [[fallthrough]];
  73                 }
  74                 case attribute::HatchStyle::Double:
  75                 {
  76                     // rotated 90 degrees
  77                     texture::GeoTexSvxHatch aHatch(
  78                         getDefinitionRange(),
  79                         getOutputRange(),
  80                         fDistance,
  81                         fAngle - F_PI2);
  82
  83                     aHatch.appendTransformations(aMatrices);
  84
  85                     [[fallthrough]];
  86                 }
  87                 case attribute::HatchStyle::Single:
  88                 {
  89                     // angle as given
  90                     texture::GeoTexSvxHatch aHatch(
  91                         getDefinitionRange(),
  92                         getOutputRange(),
  93                         fDistance,
  94                         fAngle);
  95
  96                     aHatch.appendTransformations(aMatrices);
  97                 }
  98             }
  99
 100             // prepare return value
 101             const bool bFillBackground(getFillHatch().isFillBackground());
 102
 103             // evtl. create filled background
 104             if(bFillBackground)
 105             {
 106                 // create primitive for background
 107                 rContainer.push_back(
 108                     new PolyPolygonColorPrimitive2D(
 109                         basegfx::B2DPolyPolygon(
 110                             basegfx::utils::createPolygonFromRect(getOutputRange())), getBColor()));
 111             }
 112
 113             // create primitives
 114             const basegfx::B2DPoint aStart(0.0, 0.0);
 115             const basegfx::B2DPoint aEnd(1.0, 0.0);
 116
 117             for(size_t a(0); a < aMatrices.size(); a++)
 118             {
 119                 const basegfx::B2DHomMatrix& rMatrix = aMatrices[a];
 120                 basegfx::B2DPolygon aNewLine;
 121
 122                 aNewLine.append(rMatrix * aStart);
 123                 aNewLine.append(rMatrix * aEnd);
 124
 125                 // create hairline
 126                 rContainer.push_back(new PolygonHairlinePrimitive2D(aNewLine, aHatchColor));
 127             }
 128         }
 129
 130         FillHatchPrimitive2D::FillHatchPrimitive2D(
 131             const basegfx::B2DRange& rOutputRange,
 132             const basegfx::BColor& rBColor,
 133             const attribute::FillHatchAttribute& rFillHatch)
 134         :   DiscreteMetricDependentPrimitive2D(),
 135             maOutputRange(rOutputRange),
 136             maDefinitionRange(rOutputRange),
 137             maFillHatch(rFillHatch),
 138             maBColor(rBColor)
 139         {
 140         }
 141
 142         FillHatchPrimitive2D::FillHatchPrimitive2D(
 143             const basegfx::B2DRange& rOutputRange,
 144             const basegfx::B2DRange& rDefinitionRange,
 145             const basegfx::BColor& rBColor,
 146             const attribute::FillHatchAttribute& rFillHatch)
 147         :   DiscreteMetricDependentPrimitive2D(),
 148             maOutputRange(rOutputRange),
 149             maDefinitionRange(rDefinitionRange),
 150             maFillHatch(rFillHatch),
 151             maBColor(rBColor)
 152         {
 153         }
 154
 155         bool FillHatchPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
 156         {
 157             if(DiscreteMetricDependentPrimitive2D::operator==(rPrimitive))
 158             {
 159                 const FillHatchPrimitive2D& rCompare = static_cast<const FillHatchPrimitive2D&>(rPrimitive);
 160
 161                 return (getOutputRange() == rCompare.getOutputRange()
 162                     && getDefinitionRange() == rCompare.getDefinitionRange()
 163                     && getFillHatch() == rCompare.getFillHatch()
 164                     && getBColor() == rCompare.getBColor());
 165             }
 166
 167             return false;
 168         }
 169
 170         basegfx::B2DRange FillHatchPrimitive2D::getB2DRange(const geometry::ViewInformation2D& /*rViewInformation*/) const
 171         {
 172             // return the geometrically visible area
 173             return getOutputRange();
 174         }
 175
 176         void FillHatchPrimitive2D::get2DDecomposition(Primitive2DDecompositionVisitor& rVisitor, const geometry::ViewInformation2D& rViewInformation) const
 177         {
 178             ::osl::MutexGuard aGuard( m_aMutex );
 179             bool bAdaptDistance(0 != getFillHatch().getMinimalDiscreteDistance());
 180
 181             if(bAdaptDistance)
 182             {
 183                 // behave view-dependent
 184                 DiscreteMetricDependentPrimitive2D::get2DDecomposition(rVisitor, rViewInformation);
 185             }
 186             else
 187             {
 188                 // behave view-independent
 189                 BufferedDecompositionPrimitive2D::get2DDecomposition(rVisitor, rViewInformation);
 190             }
 191         }
 192
 193         // provide unique ID
 194         ImplPrimitive2DIDBlock(FillHatchPrimitive2D, PRIMITIVE2D_ID_FILLHATCHPRIMITIVE2D)
 195
 196 } // end of namespace
 197
 198 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */