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#ifndef INCLUDED_DRAWINGLAYER_PROCESSOR2D_VCLHELPERBUFFERDEVICE_HXX
#define INCLUDED_DRAWINGLAYER_PROCESSOR2D_VCLHELPERBUFFERDEVICE_HXX

#include <vcl/virdev.hxx>

//////////////////////////////////////////////////////////////////////////////
// predefines

namespace basegfx { class B2DRange; }

//////////////////////////////////////////////////////////////////////////////
// support methods for vcl direct gradient renderering

namespace drawinglayer
{
	class impBufferDevice
	{
		OutputDevice&						mrOutDev;
		VirtualDevice						maContent;
		VirtualDevice*						mpMask;
		VirtualDevice*						mpAlpha;
		Rectangle							maDestPixel;

	public:
		impBufferDevice(
			OutputDevice& rOutDev, 
			const basegfx::B2DRange& rRange,
			bool bAddOffsetToMapping);
		~impBufferDevice();

		void paint(double fTrans = 0.0);
		bool isVisible() const { return !maDestPixel.IsEmpty(); }
		VirtualDevice& getContent() { return maContent; }
		VirtualDevice& getMask();
		VirtualDevice& getTransparence();
	};
} // end of namespace drawinglayer

//////////////////////////////////////////////////////////////////////////////

#endif // INCLUDED_DRAWINGLAYER_PROCESSOR2D_VCLHELPERBUFFERDEVICE_HXX

// eof