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27 
28 #ifndef INCLUDED_DRAWINGLAYER_PROCESSOR2D_VCLHELPERBUFFERDEVICE_HXX
29 #define INCLUDED_DRAWINGLAYER_PROCESSOR2D_VCLHELPERBUFFERDEVICE_HXX
30 
31 #include <vcl/virdev.hxx>
32 
33 //////////////////////////////////////////////////////////////////////////////
34 // predefines
35 
36 namespace basegfx { class B2DRange; }
37 
38 //////////////////////////////////////////////////////////////////////////////
39 // support methods for vcl direct gradient renderering
40 
41 namespace drawinglayer
42 {
43 	class impBufferDevice
44 	{
45 		OutputDevice&						mrOutDev;
46 		VirtualDevice						maContent;
47 		VirtualDevice*						mpMask;
48 		VirtualDevice*						mpAlpha;
49 		Rectangle							maDestPixel;
50 
51 	public:
52 		impBufferDevice(
53 			OutputDevice& rOutDev,
54 			const basegfx::B2DRange& rRange,
55 			bool bAddOffsetToMapping);
56 		~impBufferDevice();
57 
58 		void paint(double fTrans = 0.0);
59 		bool isVisible() const { return !maDestPixel.IsEmpty(); }
60 		VirtualDevice& getContent() { return maContent; }
61 		VirtualDevice& getMask();
62 		VirtualDevice& getTransparence();
63 	};
64 } // end of namespace drawinglayer
65 
66 //////////////////////////////////////////////////////////////////////////////
67 
68 #endif // INCLUDED_DRAWINGLAYER_PROCESSOR2D_VCLHELPERBUFFERDEVICE_HXX
69 
70 // eof
71