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21 
22 
23 
24 #ifndef INCLUDED_DRAWINGLAYER_PROCESSOR2D_VCLHELPERBUFFERDEVICE_HXX
25 #define INCLUDED_DRAWINGLAYER_PROCESSOR2D_VCLHELPERBUFFERDEVICE_HXX
26 
27 #include <vcl/virdev.hxx>
28 
29 //////////////////////////////////////////////////////////////////////////////
30 // predefines
31 
32 namespace basegfx { class B2DRange; }
33 
34 //////////////////////////////////////////////////////////////////////////////
35 // support methods for vcl direct gradient renderering
36 
37 namespace drawinglayer
38 {
39 	class impBufferDevice
40 	{
41         OutputDevice&                       mrOutDev;
42         VirtualDevice*                      mpContent;
43         VirtualDevice*                      mpMask;
44         VirtualDevice*                      mpAlpha;
45         Rectangle                           maDestPixel;
46 
47 	public:
48 		impBufferDevice(
49 			OutputDevice& rOutDev,
50 			const basegfx::B2DRange& rRange,
51 			bool bAddOffsetToMapping);
52 		~impBufferDevice();
53 
54 		void paint(double fTrans = 0.0);
isVisible() const55 		bool isVisible() const { return !maDestPixel.IsEmpty(); }
56 		VirtualDevice& getContent();
57 		VirtualDevice& getMask();
58 		VirtualDevice& getTransparence();
59 	};
60 } // end of namespace drawinglayer
61 
62 //////////////////////////////////////////////////////////////////////////////
63 
64 #endif // INCLUDED_DRAWINGLAYER_PROCESSOR2D_VCLHELPERBUFFERDEVICE_HXX
65 
66 // eof
67