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 <drawinglayer/texture/texture.hxx>
  22 #include <drawinglayer/primitive2d/polypolygonprimitive2d.hxx>
  23 #include <basegfx/polygon/b2dpolygontools.hxx>
  24 #include <basegfx/polygon/b2dpolygon.hxx>
  25 #include <basegfx/tools/canvastools.hxx>
  26 #include <drawinglayer/primitive2d/polygonprimitive2d.hxx>
  27 #include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
  28 #include <drawinglayer/geometry/viewinformation2d.hxx>
  29
  30 //////////////////////////////////////////////////////////////////////////////
  31
  32 using namespace com::sun::star;
  33
  34 //////////////////////////////////////////////////////////////////////////////
  35
  36 namespace drawinglayer
  37 {
  38     namespace primitive2d
  39     {
  40         Primitive2DSequence FillHatchPrimitive2D::create2DDecomposition(const geometry::ViewInformation2D& /*rViewInformation*/) const
  41         {
  42             Primitive2DSequence aRetval;
  43
  44             if(!getFillHatch().isDefault())
  45             {
  46                 // create hatch
  47                 const basegfx::BColor aHatchColor(getFillHatch().getColor());
  48                 const double fAngle(getFillHatch().getAngle());
  49                 ::std::vector< basegfx::B2DHomMatrix > aMatrices;
  50                 double fDistance(getFillHatch().getDistance());
  51                 const bool bAdaptDistance(0 != getFillHatch().getMinimalDiscreteDistance());
  52
  53                 // #i120230# evtl. adapt distance
  54                 if(bAdaptDistance)
  55                 {
  56                     const double fDiscreteDistance(getFillHatch().getDistance() / getDiscreteUnit());
  57
  58                     if(fDiscreteDistance < (double)getFillHatch().getMinimalDiscreteDistance())
  59                     {
  60                         fDistance = (double)getFillHatch().getMinimalDiscreteDistance() * getDiscreteUnit();
  61                     }
  62                 }
  63
  64                 // get hatch transformations
  65                 switch(getFillHatch().getStyle())
  66                 {
  67                     case attribute::HATCHSTYLE_TRIPLE:
  68                     {
  69                         // rotated 45 degrees
  70                         texture::GeoTexSvxHatch aHatch(getObjectRange(), fDistance, fAngle - F_PI4);
  71                         aHatch.appendTransformations(aMatrices);
  72
  73                         // fall-through by purpose
  74                     }
  75                     case attribute::HATCHSTYLE_DOUBLE:
  76                     {
  77                         // rotated 90 degrees
  78                         texture::GeoTexSvxHatch aHatch(getObjectRange(), fDistance, fAngle - F_PI2);
  79                         aHatch.appendTransformations(aMatrices);
  80
  81                         // fall-through by purpose
  82                     }
  83                     case attribute::HATCHSTYLE_SINGLE:
  84                     {
  85                         // angle as given
  86                         texture::GeoTexSvxHatch aHatch(getObjectRange(), fDistance, fAngle);
  87                         aHatch.appendTransformations(aMatrices);
  88                     }
  89                 }
  90
  91                 // prepare return value
  92                 const bool bFillBackground(getFillHatch().isFillBackground());
  93                 aRetval.realloc(bFillBackground ? aMatrices.size() + 1L : aMatrices.size());
  94
  95                 // evtl. create filled background
  96                 if(bFillBackground)
  97                 {
  98                     // create primitive for background
  99                     const Primitive2DReference xRef(
 100                         new PolyPolygonColorPrimitive2D(
 101                             basegfx::B2DPolyPolygon(
 102                                 basegfx::tools::createPolygonFromRect(getObjectRange())), getBColor()));
 103                     aRetval[0] = xRef;
 104                 }
 105
 106                 // create primitives
 107                 const basegfx::B2DPoint aStart(0.0, 0.0);
 108                 const basegfx::B2DPoint aEnd(1.0, 0.0);
 109
 110                 for(sal_uInt32 a(0L); a < aMatrices.size(); a++)
 111                 {
 112                     const basegfx::B2DHomMatrix& rMatrix = aMatrices[a];
 113                     basegfx::B2DPolygon aNewLine;
 114
 115                     aNewLine.append(rMatrix * aStart);
 116                     aNewLine.append(rMatrix * aEnd);
 117
 118                     // create hairline
 119                     const Primitive2DReference xRef(new PolygonHairlinePrimitive2D(aNewLine, aHatchColor));
 120                     aRetval[bFillBackground ? (a + 1) : a] = xRef;
 121                 }
 122             }
 123
 124             return aRetval;
 125         }
 126
 127         FillHatchPrimitive2D::FillHatchPrimitive2D(
 128             const basegfx::B2DRange& rObjectRange,
 129             const basegfx::BColor& rBColor,
 130             const attribute::FillHatchAttribute& rFillHatch)
 131         :   DiscreteMetricDependentPrimitive2D(),
 132             maObjectRange(rObjectRange),
 133             maFillHatch(rFillHatch),
 134             maBColor(rBColor)
 135         {
 136         }
 137
 138         bool FillHatchPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
 139         {
 140             if(DiscreteMetricDependentPrimitive2D::operator==(rPrimitive))
 141             {
 142                 const FillHatchPrimitive2D& rCompare = (FillHatchPrimitive2D&)rPrimitive;
 143
 144                 return (getObjectRange() == rCompare.getObjectRange()
 145                     && getFillHatch() == rCompare.getFillHatch()
 146                     && getBColor() == rCompare.getBColor());
 147             }
 148
 149             return false;
 150         }
 151
 152         basegfx::B2DRange FillHatchPrimitive2D::getB2DRange(const geometry::ViewInformation2D& /*rViewInformation*/) const
 153         {
 154             // return ObjectRange
 155             return getObjectRange();
 156         }
 157
 158         Primitive2DSequence FillHatchPrimitive2D::get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const
 159         {
 160             ::osl::MutexGuard aGuard( m_aMutex );
 161             bool bAdaptDistance(0 != getFillHatch().getMinimalDiscreteDistance());
 162
 163             if(bAdaptDistance)
 164             {
 165                 // behave view-dependent
 166                 return DiscreteMetricDependentPrimitive2D::get2DDecomposition(rViewInformation);
 167             }
 168             else
 169             {
 170                 // behave view-independent
 171                 return BufferedDecompositionPrimitive2D::get2DDecomposition(rViewInformation);
 172             }
 173         }
 174
 175         // provide unique ID
 176         ImplPrimitive2DIDBlock(FillHatchPrimitive2D, PRIMITIVE2D_ID_FILLHATCHPRIMITIVE2D)
 177
 178     } // end of namespace primitive2d
 179 } // end of namespace drawinglayer
 180
 181 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */