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
  29 namespace drawinglayer
  30 {
  31     namespace primitive2d
  32     {
  33         // This primitive is used to represent geometry for non-visible objects,
  34         // e.g. a PresObj's outline. To still be able to use primitives for HitTest
  35         // functionality, the 2d decompositions will produce an as much as possible
  36         // simplified line geometry encapsulated in this primtive when there is no
  37         // line geometry. In a further enchanced version this may change to 'if neither
  38         // filled nor lines' creation criteria. The whole primitive decomposes to nothing,
  39         // so no one not knowing it will be influenced. Only helper processors for hit test
  40         // (and maybe BoundRect extractors) will use it and its children subcontent.
  41         class DRAWINGLAYER_DLLPUBLIC HiddenGeometryPrimitive2D : public GroupPrimitive2D
  42         {
  43         public:
  44             explicit HiddenGeometryPrimitive2D(const Primitive2DSequence& rChildren);
  45
  46             // despite returning an empty decomposition since it's no visualisation data,
  47             // range calculation is intended to use hidden geometry, so
  48             // the local implementation will return the children's range
  49             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const SAL_OVERRIDE;
  50
  51             /// local decomposition. Implementation will return empty Primitive2DSequence
  52             virtual Primitive2DSequence get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const SAL_OVERRIDE;
  53
  54             // provide unique ID
  55             DeclPrimitive2DIDBlock()
  56         };
  57     } // end of namespace primitive2d
  58 } // end of namespace drawinglayer
  59
  60
  61
  62 #endif //INCLUDED_DRAWINGLAYER_PRIMITIVE2D_HIDDENGEOMETRYPRIMITIVE2D_HXX
  63
  64 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */