include/drawinglayer/primitive2d/PolygonMarkerPrimitive2D.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #pragma once
  21
  22 #include <drawinglayer/drawinglayerdllapi.h>
  23
  24 #include <drawinglayer/primitive2d/BufferedDecompositionPrimitive2D.hxx>
  25 #include <basegfx/matrix/b2dhommatrix.hxx>
  26 #include <basegfx/polygon/b2dpolygon.hxx>
  27 #include <basegfx/color/bcolor.hxx>
  28
  29 namespace drawinglayer::primitive2d
  30 {
  31 /** PolygonMarkerPrimitive2D class
  32
  33     This primitive defines a two-colored marker hairline which is
  34     dashed with the given dash length. Since hairlines are view-dependent,
  35     this primitive is view-dependent, too.
  36
  37     It will be decomposed to the needed PolygonHairlinePrimitive2D if
  38     not handled directly by a renderer.
  39  */
  40 class DRAWINGLAYER_DLLPUBLIC PolygonMarkerPrimitive2D final
  41     : public BufferedDecompositionPrimitive2D
  42 {
  43 private:
  44     /// the marker hairline geometry
  45     basegfx::B2DPolygon maPolygon;
  46
  47     /// the two colors
  48     basegfx::BColor maRGBColorA;
  49     basegfx::BColor maRGBColorB;
  50
  51     /// the dash distance in 'pixels'
  52     double mfDiscreteDashLength;
  53
  54     /// decomposition is view-dependent, remember last InverseObjectToViewTransformation
  55     basegfx::B2DHomMatrix maLastInverseObjectToViewTransformation;
  56
  57     /// local decomposition.
  58     virtual void
  59     create2DDecomposition(Primitive2DContainer& rContainer,
  60                           const geometry::ViewInformation2D& rViewInformation) const override;
  61
  62 public:
  63     /// constructor
  64     PolygonMarkerPrimitive2D(basegfx::B2DPolygon aPolygon, const basegfx::BColor& rRGBColorA,
  65                              const basegfx::BColor& rRGBColorB, double fDiscreteDashLength);
  66
  67     /// data read access
  68     const basegfx::B2DPolygon& getB2DPolygon() const { return maPolygon; }
  69     const basegfx::BColor& getRGBColorA() const { return maRGBColorA; }
  70     const basegfx::BColor& getRGBColorB() const { return maRGBColorB; }
  71     double getDiscreteDashLength() const { return mfDiscreteDashLength; }
  72
  73     /// compare operator
  74     virtual bool operator==(const BasePrimitive2D& rPrimitive) const override;
  75
  76     /// get range
  77     virtual basegfx::B2DRange
  78     getB2DRange(const geometry::ViewInformation2D& rViewInformation) const override;
  79
  80     /// Override standard getDecomposition to be view-dependent here
  81     virtual void
  82     get2DDecomposition(Primitive2DDecompositionVisitor& rVisitor,
  83                        const geometry::ViewInformation2D& rViewInformation) const override;
  84
  85     /// provide unique ID
  86     virtual sal_uInt32 getPrimitive2DID() const override;
  87 };
  88
  89 } // end of namespace primitive2d::drawinglayer
  90
  91 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */