drawinglayer/source/primitive2d/discretebitmapprimitive2d.cxx

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  19
  20 #include <drawinglayer/primitive2d/discretebitmapprimitive2d.hxx>
  21 #include <drawinglayer/primitive2d/bitmapprimitive2d.hxx>
  22 #include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
  23 #include <toolkit/helper/vclunohelper.hxx>
  24
  25
  26 namespace drawinglayer::primitive2d
  27 {
  28         Primitive2DReference DiscreteBitmapPrimitive2D::create2DDecomposition(const geometry::ViewInformation2D& /*rViewInformation*/) const
  29         {
  30             // use getViewTransformation() and getObjectTransformation() from
  31             // ObjectAndViewTransformationDependentPrimitive2D to create a BitmapPrimitive2D
  32             // with the correct mapping
  33
  34             if(getBitmapEx().IsEmpty())
  35                 return nullptr;
  36
  37             // get discrete size
  38             const Size& rSizePixel = getBitmapEx().GetSizePixel();
  39             const basegfx::B2DVector aDiscreteSize(rSizePixel.Width(), rSizePixel.Height());
  40
  41             // get inverse ViewTransformation
  42             basegfx::B2DHomMatrix aInverseViewTransformation(getViewTransformation());
  43             aInverseViewTransformation.invert();
  44
  45             // get size and position in world coordinates
  46             const basegfx::B2DVector aWorldSize(aInverseViewTransformation * aDiscreteSize);
  47             const basegfx::B2DPoint  aWorldTopLeft(getObjectTransformation() * getTopLeft());
  48
  49             // build object matrix in world coordinates so that the top-left
  50             // position remains, but possible transformations (e.g. rotations)
  51             // in the ObjectToView stack remain and get correctly applied
  52             basegfx::B2DHomMatrix aObjectTransform;
  53
  54             aObjectTransform.set(0, 0, aWorldSize.getX());
  55             aObjectTransform.set(1, 1, aWorldSize.getY());
  56             aObjectTransform.set(0, 2, aWorldTopLeft.getX());
  57             aObjectTransform.set(1, 2, aWorldTopLeft.getY());
  58
  59             // get inverse ObjectTransformation
  60             basegfx::B2DHomMatrix aInverseObjectTransformation(getObjectTransformation());
  61             aInverseObjectTransformation.invert();
  62
  63             // transform to object coordinate system
  64             aObjectTransform = aInverseObjectTransformation * aObjectTransform;
  65
  66             // create BitmapPrimitive2D with now object-local coordinate data
  67             return
  68                 new BitmapPrimitive2D(
  69                     getBitmapEx(),
  70                     aObjectTransform);
  71         }
  72
  73         DiscreteBitmapPrimitive2D::DiscreteBitmapPrimitive2D(
  74             const BitmapEx& rBitmapEx,
  75             const basegfx::B2DPoint& rTopLeft)
  76         :   maBitmapEx(rBitmapEx),
  77             maTopLeft(rTopLeft)
  78         {
  79         }
  80
  81         bool DiscreteBitmapPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
  82         {
  83             if(ObjectAndViewTransformationDependentPrimitive2D::operator==(rPrimitive))
  84             {
  85                 const DiscreteBitmapPrimitive2D& rCompare = static_cast<const DiscreteBitmapPrimitive2D&>(rPrimitive);
  86
  87                 return (getBitmapEx() == rCompare.getBitmapEx()
  88                     && getTopLeft() == rCompare.getTopLeft());
  89             }
  90
  91             return false;
  92         }
  93
  94         // provide unique ID
  95         sal_uInt32 DiscreteBitmapPrimitive2D::getPrimitive2DID() const
  96         {
  97             return PRIMITIVE2D_ID_DISCRETEBITMAPPRIMITIVE2D;
  98         }
  99
 100 } // end of namespace
 101
 102 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */