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21 
22 #ifndef INCLUDED_DRAWINGLAYER_PRIMITIVE2D_UNIFIEDTRANSPARENCEPRIMITIVE2D_HXX
23 #define INCLUDED_DRAWINGLAYER_PRIMITIVE2D_UNIFIEDTRANSPARENCEPRIMITIVE2D_HXX
24 
25 #include <drawinglayer/drawinglayerdllapi.h>
26 #include <drawinglayer/primitive2d/groupprimitive2d.hxx>
27 
28 //////////////////////////////////////////////////////////////////////////////
29 
30 namespace drawinglayer
31 {
32 	namespace primitive2d
33 	{
34         /** UnifiedTransparencePrimitive2D class
35 
36             This primitive encapsualtes a child hierarchy and defines
37             that it shall be visualized with the given transparency. That
38             transparency is unique for all contained geometry, so that
39             e.g. overlapping polygons in the child geometry will not show
40             regions of combined transparency, but be all rendered with the
41             defined, single transparency.
42          */
43 		class DRAWINGLAYER_DLLPUBLIC UnifiedTransparencePrimitive2D : public GroupPrimitive2D
44 		{
45 		private:
46             /// the unified transparence
47 			double								mfTransparence;
48 
49 		public:
50             /// constructor
51 			UnifiedTransparencePrimitive2D(
52 				const Primitive2DSequence& rChildren,
53 				double fTransparence);
54 
55 			/// data read access
getTransparence() const56 			double getTransparence() const { return mfTransparence; }
57 
58 			/// compare operator
59 			virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
60 
61 			/// own getB2DRange implementation to include transparent geometries to BoundRect calculations
62 			virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
63 
64             /// create decomposition
65 			virtual Primitive2DSequence get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
66 
67 			/// provide unique ID
68 			DeclPrimitrive2DIDBlock()
69 		};
70 	} // end of namespace primitive2d
71 } // end of namespace drawinglayer
72 
73 //////////////////////////////////////////////////////////////////////////////
74 
75 #endif //INCLUDED_DRAWINGLAYER_PRIMITIVE2D_UNIFIEDTRANSPARENCEPRIMITIVE2D_HXX
76 
77 //////////////////////////////////////////////////////////////////////////////
78 // eof
79