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35 
36 #ifndef INCLUDED_DRAWINGLAYER_PRIMITIVE2D_HIDDENGEOMETRYPRIMITIVE2D_HXX
37 #define INCLUDED_DRAWINGLAYER_PRIMITIVE2D_HIDDENGEOMETRYPRIMITIVE2D_HXX
38 
39 #include <drawinglayer/drawinglayerdllapi.h>
40 #include <drawinglayer/primitive2d/groupprimitive2d.hxx>
41 
42 //////////////////////////////////////////////////////////////////////////////
43 
44 namespace drawinglayer
45 {
46 	namespace primitive2d
47 	{
48 		// This primitive is used to represent geometry for non-visible objects,
49 		// e.g. a PresObj's outline. To still be able to use primitives for HitTest
50         // functionality, the 2d decompositions will produce an as much as possible
51         // simplified line geometry encapsulated in this primtive when there is no
52         // line geometry. In a further enchanced version this may change to 'if neither
53         // filled nor lines' creation criteria. The whole primitive decomposes to nothing,
54         // so no one not knowing it will be influenced. Only helper processors for hit test
55         // (and maybe BoundRect extractors) will use it and it's children subcontent.
56 		class DRAWINGLAYER_DLLPUBLIC HiddenGeometryPrimitive2D : public GroupPrimitive2D
57 		{
58 		public:
59 			HiddenGeometryPrimitive2D(const Primitive2DSequence& rChildren);
60 
61 			// despite returning an empty decomposition since it's no visualisation data,
62 			// range calculation is intended to use hidden geometry, so
63 			// the local implementation will return the children's range
64 			virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
65 
66 			/// local decomposition. Implementation will return empty Primitive2DSequence
67 			virtual Primitive2DSequence get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
68 
69 			// provide unique ID
70 			DeclPrimitrive2DIDBlock()
71 		};
72 	} // end of namespace primitive2d
73 } // end of namespace drawinglayer
74 
75 //////////////////////////////////////////////////////////////////////////////
76 
77 #endif //INCLUDED_DRAWINGLAYER_PRIMITIVE2D_HIDDENGEOMETRYPRIMITIVE2D_HXX
78 
79 //////////////////////////////////////////////////////////////////////////////
80 // eof
81