include/drawinglayer/primitive2d/hiddengeometryprimitive2d.hxx

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  19
  20 #ifndef INCLUDED_DRAWINGLAYER_PRIMITIVE2D_HIDDENGEOMETRYPRIMITIVE2D_HXX
  21 #define INCLUDED_DRAWINGLAYER_PRIMITIVE2D_HIDDENGEOMETRYPRIMITIVE2D_HXX
  22
  23 #include <drawinglayer/drawinglayerdllapi.h>
  24
  25 #include <drawinglayer/primitive2d/groupprimitive2d.hxx>
  26
  27
  28 namespace drawinglayer
  29 {
  30     namespace primitive2d
  31     {
  32         // This primitive is used to represent geometry for non-visible objects,
  33         // e.g. a PresObj's outline. To still be able to use primitives for HitTest
  34         // functionality, the 2d decompositions will produce an as much as possible
  35         // simplified line geometry encapsulated in this primtive when there is no
  36         // line geometry. In a further enhanced version this may change to 'if neither
  37         // filled nor lines' creation criteria. The whole primitive decomposes to nothing,
  38         // so no one not knowing it will be influenced. Only helper processors for hit test
  39         // (and maybe BoundRect extractors) will use it and its children subcontent.
  40         class DRAWINGLAYER_DLLPUBLIC HiddenGeometryPrimitive2D : public GroupPrimitive2D
  41         {
  42         public:
  43             explicit HiddenGeometryPrimitive2D(const Primitive2DContainer& rChildren);
  44
  45             // despite returning an empty decomposition since it's no visualisation data,
  46             // range calculation is intended to use hidden geometry, so
  47             // the local implementation will return the children's range
  48             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const override;
  49
  50             /// local decomposition. Implementation will return empty Primitive2DSequence
  51             virtual void get2DDecomposition(Primitive2DDecompositionVisitor& rVisitor, const geometry::ViewInformation2D& rViewInformation) const override;
  52
  53             // provide unique ID
  54             DeclPrimitive2DIDBlock()
  55         };
  56     } // end of namespace primitive2d
  57 } // end of namespace drawinglayer
  58
  59
  60 #endif //INCLUDED_DRAWINGLAYER_PRIMITIVE2D_HIDDENGEOMETRYPRIMITIVE2D_HXX
  61
  62 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */