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Torque/SDK/lib/mayamacsdk5/include/maya/MDataBlock.h

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+
+#ifndef _MDataBlock
+#define _MDataBlock
+//
+// *****************************************************************************
+//
+// Copyright (C) 1997-2003 Alias|Wavefront Inc.
+//
+// These coded instructions, statements and computer programs contain
+// unpublished information proprietary to Alias|Wavefront Inc. and are 
+// protected by Canadian and US federal copyright laws. They may not be 
+// disclosed to third parties or copied or duplicated, in whole or in part, 
+// without prior written consent of Alias|Wavefront Inc.
+//
+// Unpublished-rights reserved under the Copyright Laws of the United States.
+//
+// *****************************************************************************
+//
+// CLASS:    MDataBlock
+//
+// *****************************************************************************
+//
+// CLASS DESCRIPTION (MDataBlock)
+//
+//   An MDataBlock provides storage for the data being received by or sent by
+//   the node.  It is the data for the plugs and attributes of the node.  The
+//   data block is only valid during the compute method of the depend node,
+//   and should not be stored.
+//
+//   Access to the data in an MDataBlock is done using an MDataHandle or an
+//   MArrayDataHandle.
+//  
+//
+// *****************************************************************************
+#if defined __cplusplus
+// *****************************************************************************
+
+// INCLUDED HEADER FILES
+
+#include <maya/MStatus.h>
+#include <maya/MTypes.h>
+#include <maya/MDataHandle.h>
+#include <maya/MArrayDataHandle.h>
+
+// *****************************************************************************
+// FORWARD DECLARATIONS
+class MObject;
+class MPlug;
+class MDGContext;
+// *****************************************************************************
+
+// CLASS DECLARATION (MDataBlock)
+
+/// Dependency node data block
+/**
+  The storage for the data of all of a node's plugs and attributes.
+*/
+#ifdef _WIN32
+#pragma warning(disable: 4522)
+#endif // _WIN32
+
+class OPENMAYA_EXPORT MDataBlock  
+{
+
+public:
+
+    ///
+	virtual		     ~MDataBlock ();
+    ///
+	MDataHandle      inputValue ( const MPlug & plug, 
+								        MStatus * ReturnStatus = NULL );
+    ///
+	MDataHandle      inputValue ( const MObject & attribute, 
+								        MStatus * ReturnStatus = NULL ); 
+    ///
+	MDataHandle      outputValue ( const MPlug & plug, 
+								        MStatus * ReturnStatus = NULL );
+    ///
+	MDataHandle      outputValue ( const MObject & attribute, 
+								        MStatus * ReturnStatus = NULL );
+    ///
+	MArrayDataHandle inputArrayValue ( const MPlug & plug, 
+								        MStatus * ReturnStatus = NULL );
+    ///
+	MArrayDataHandle inputArrayValue ( const MObject & attribute, 
+								        MStatus * ReturnStatus = NULL );
+    ///
+	MArrayDataHandle outputArrayValue ( const MPlug & plug, 
+										MStatus * ReturnStatus = NULL );
+    ///
+	MArrayDataHandle outputArrayValue ( const MObject & attribute, 
+										MStatus * ReturnStatus = NULL );
+    ///
+	MStatus          setClean ( const MPlug & plug );
+    ///
+	MStatus          setClean ( const MObject & attribute );
+
+    ///
+	bool			isClean ( const MPlug & plug );
+    ///
+	bool			isClean ( const MObject & attribute, 
+							  MStatus* ReturnStatus=NULL );
+
+	///
+	MDGContext       context ( MStatus * ReturnStatus = NULL );
+	///
+	MStatus          setContext ( const MDGContext & ctx );
+
+protected:
+// No protected members
+
+private:
+	const char*		 className() const;
+
+
+	friend class MPxNode;
+	MDataBlock( void * ptr ); 
+	void * data;
+};
+
+#ifdef _WIN32
+#pragma warning(default: 4522)
+#endif // _WIN32
+
+// *****************************************************************************
+#endif /* __cplusplus */
+#endif /* _MDataBlock */