drawinglayer/source/primitive2d/wrongspellprimitive2d.cxx

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  19
  20 #include <drawinglayer/primitive2d/wrongspellprimitive2d.hxx>
  21 #include <basegfx/polygon/b2dpolygon.hxx>
  22 #include <drawinglayer/primitive2d/polygonprimitive2d.hxx>
  23 #include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
  24 #include <drawinglayer/geometry/viewinformation2d.hxx>
  25
  26
  27 namespace drawinglayer
  28 {
  29     namespace primitive2d
  30     {
  31         void WrongSpellPrimitive2D::create2DDecomposition(Primitive2DContainer& rContainer, const geometry::ViewInformation2D& /*rViewInformation*/) const
  32         {
  33             // ATM this decompose is view-independent, what the original VCL-Display is not. To mimic
  34             // the old behaviour here if wanted it is necessary to add get2DDecomposition and implement
  35             // it similar to the usage in e.g. HelplinePrimitive2D. Remembering the ViewTransformation
  36             // should be enough then.
  37             // The view-independent wavelines work well (if You ask me). Maybe the old VCL-Behaviour is only
  38             // in place because it was not possible/too expensive at that time to scale the wavelines with the
  39             // view...
  40             // With the VCL-PixelRenderer this will not even be used since it implements WrongSpellPrimitive2D
  41             // directly and mimics the old VCL-Display there. If You implemented a new renderer without
  42             // direct WrongSpellPrimitive2D support, You may want to do the described change here.
  43
  44             // get the font height (part of scale), so decompose the matrix
  45             basegfx::B2DVector aScale, aTranslate;
  46             double fRotate, fShearX;
  47             getTransformation().decompose(aScale, aTranslate, fRotate, fShearX);
  48
  49             // calculate distances based on a static default (to allow testing in debugger)
  50             static const double fDefaultDistance(0.03);
  51             const double fFontHeight(aScale.getY());
  52             const double fUnderlineDistance(fFontHeight * fDefaultDistance);
  53             const double fWaveWidth(2.0 * fUnderlineDistance);
  54
  55             // the Y-distance needs to be relative to FontHeight since the points get
  56             // transformed with the transformation containing that scale already.
  57             const double fRelativeUnderlineDistance(basegfx::fTools::equalZero(aScale.getY()) ? 0.0 : fUnderlineDistance / aScale.getY());
  58             basegfx::B2DPoint aStart(getStart(), fRelativeUnderlineDistance);
  59             basegfx::B2DPoint aStop(getStop(), fRelativeUnderlineDistance);
  60             basegfx::B2DPolygon aPolygon;
  61
  62             aPolygon.append(getTransformation() * aStart);
  63             aPolygon.append(getTransformation() * aStop);
  64
  65             // prepare line attribute
  66             const attribute::LineAttribute aLineAttribute(getColor());
  67
  68             // create the waveline primitive
  69             rContainer.push_back(new PolygonWavePrimitive2D(aPolygon, aLineAttribute, fWaveWidth, 0.5 * fWaveWidth));
  70         }
  71
  72         WrongSpellPrimitive2D::WrongSpellPrimitive2D(
  73             const basegfx::B2DHomMatrix& rTransformation,
  74             double fStart,
  75             double fStop,
  76             const basegfx::BColor& rColor)
  77         :   BufferedDecompositionPrimitive2D(),
  78             maTransformation(rTransformation),
  79             mfStart(fStart),
  80             mfStop(fStop),
  81             maColor(rColor)
  82         {
  83         }
  84
  85         bool WrongSpellPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
  86         {
  87             if(BufferedDecompositionPrimitive2D::operator==(rPrimitive))
  88             {
  89                 const WrongSpellPrimitive2D& rCompare = static_cast<const WrongSpellPrimitive2D&>(rPrimitive);
  90
  91                 return (getTransformation() == rCompare.getTransformation()
  92                     && getStart() == rCompare.getStart()
  93                     && getStop() == rCompare.getStop()
  94                     && getColor() == rCompare.getColor());
  95             }
  96
  97             return false;
  98         }
  99
 100         // provide unique ID
 101         ImplPrimitive2DIDBlock(WrongSpellPrimitive2D, PRIMITIVE2D_ID_WRONGSPELLPRIMITIVE2D)
 102
 103     } // end of namespace primitive2d
 104 } // end of namespace drawinglayer
 105
 106 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */