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35 
36 #ifndef INCLUDED_DRAWINGLAYER_PRIMITIVE2D_UNIFIEDTRANSPARENCEPRIMITIVE2D_HXX
37 #define INCLUDED_DRAWINGLAYER_PRIMITIVE2D_UNIFIEDTRANSPARENCEPRIMITIVE2D_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         /** UnifiedTransparencePrimitive2D class
49 
50             This primitive encapsualtes a child hierarchy and defines
51             that it shall be visualized with the given transparency. That
52             transparency is unique for all contained geometry, so that
53             e.g. overlapping polygons in the child geometry will not show
54             regions of combined transparency, but be all rendered with the
55             defined, single transparency.
56          */
57 		class DRAWINGLAYER_DLLPUBLIC UnifiedTransparencePrimitive2D : public GroupPrimitive2D
58 		{
59 		private:
60             /// the unified transparence
61 			double								mfTransparence;
62 
63 		public:
64             /// constructor
65 			UnifiedTransparencePrimitive2D(
66 				const Primitive2DSequence& rChildren,
67 				double fTransparence);
68 
69 			/// data read access
70 			double getTransparence() const { return mfTransparence; }
71 
72 			/// compare operator
73 			virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
74 
75 			/// own getB2DRange implementation to include transparent geometries to BoundRect calculations
76 			virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
77 
78             /// create decomposition
79 			virtual Primitive2DSequence get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
80 
81 			/// provide unique ID
82 			DeclPrimitrive2DIDBlock()
83 		};
84 	} // end of namespace primitive2d
85 } // end of namespace drawinglayer
86 
87 //////////////////////////////////////////////////////////////////////////////
88 
89 #endif //INCLUDED_DRAWINGLAYER_PRIMITIVE2D_UNIFIEDTRANSPARENCEPRIMITIVE2D_HXX
90 
91 //////////////////////////////////////////////////////////////////////////////
92 // eof
93