263 lines
		
	
	
		
			6.7 KiB
		
	
	
	
		
			C++
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			263 lines
		
	
	
		
			6.7 KiB
		
	
	
	
		
			C++
		
	
	
		
			Executable File
		
	
	
	
	
#ifndef LINUX
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#pragma once
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#endif
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#ifndef _MDataHandle
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#define _MDataHandle
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//
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// *****************************************************************************
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//
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// Copyright (C) 1997-2001 Alias|Wavefront Inc.
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//
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// These coded instructions, statements and computer programs contain
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// unpublished information proprietary to Alias|Wavefront Inc. and are 
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// protected by Canadian and US federal copyright laws. They may not be 
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// disclosed to third parties or copied or duplicated, in whole or in part, 
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// without prior written consent of Alias|Wavefront Inc.
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//
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// Unpublished-rights reserved under the Copyright Laws of the United States.
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//
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// *****************************************************************************
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//
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// CLASS:    MDataHandle
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//
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// *****************************************************************************
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//
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// CLASS DESCRIPTION (MDataHandle)
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//
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//	An MDataHandle is a smart pointer into a data block (MDataBlock).  A data
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//	handle corresponds to the data for a particular attribute or plug.  For
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//	array data (eg CVs of a curve) use an MArrayDataHandle.  To get a data
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//	handle, request it from the data block.
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//
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// *****************************************************************************
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#if defined __cplusplus
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// *****************************************************************************
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// INCLUDED HEADER FILES
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#include <maya/MStatus.h>
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#include <maya/MTypes.h>
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#include <string.h>
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#include <maya/MFnNumericData.h>
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#include <maya/MFnData.h>
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#include <maya/MTypeId.h>
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#include <maya/MObject.h>
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// *****************************************************************************
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// FORWARD DECLARATIONS
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class MTime;
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class MVector;
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class MFloatVector;
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class MMatrix;
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class MFloatMatrix;
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class MPlug;
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class MPxData;
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class MString;
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// *****************************************************************************
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// CLASS DECLARATION (MDataHandle)
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/// Data handle for information contained in a data block
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/**
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 An MDataHandle is a smart pointer into an MDataBlock.
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*/
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#ifdef _WIN32
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#pragma warning(disable: 4522)
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#endif // _WIN32
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class OPENMAYA_EXPORT MDataHandle {
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public:  
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	///
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	MDataHandle();
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    ///
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	bool                 isNumeric() const;
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    ///
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    MFnNumericData::Type numericType() const;
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    ///
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    MFnData::Type        type() const;
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    ///
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    MTypeId              typeId() const;
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    ///
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	MObject              data();
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	///
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	MStatus				 copy( const MDataHandle& src );
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    ///
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	void                 setClean();
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    ///	
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	bool&			     asBool()	const;
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    ///
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	char&			     asChar()	const;
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    ///
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	unsigned char&       asUChar()	const;
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    ///
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	short&			     asShort()	const;
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    /// OBSOLETE
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	int&			     asLong()	const;
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    ///
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	int&			     asInt()	const;
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    ///
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	float&			     asFloat()	const;
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    ///
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	double&		         asDouble()	const; 
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    ///
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    MTime                asTime()	const;
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    ///
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	short2&              asShort2()	const;
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    /// OBSOLETE
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	long2&               asLong2()	const;
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    ///
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	int2&				 asInt2()	const;
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    ///
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	float2&              asFloat2()	const;
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    ///
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	double2&             asDouble2()const;
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    ///
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	short3&              asShort3()	const;
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    /// OBSOLETE
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	long3&               asLong3()	const;
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    ///
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	int3&                asInt3()	const;
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    ///
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	float3&              asFloat3()  const;
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    ///
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	double3&             asDouble3() const;
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    ///
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	MVector&             asVector()  const;
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    ///
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	MFloatVector&        asFloatVector() const;
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    ///
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    MMatrix&             asMatrix()  const;
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    ///
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    MFloatMatrix&        asFloatMatrix()  const;
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	///
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	MString&             asString() const;
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    ///
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    MObject              asNurbsCurve() const; 
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    ///
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    MObject              asNurbsSurface() const;
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    ///
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    MObject              asMesh() const;
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    ///
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    MObject              asSubdSurface() const; 
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    ///
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    MObject              asNurbsCurveTransformed() const;
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    ///
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    MObject              asNurbsSurfaceTransformed() const;
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    ///
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    MObject              asMeshTransformed() const;
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    ///
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    MObject              asSubdSurfaceTransformed() const;
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    ///
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    const MMatrix &      geometryTransformMatrix() const; 
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	///
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	MPxData *            asPluginData() const;
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    ///
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    void                 set( bool );
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    ///
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    void                 set( char );
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    ///
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    void                 set( short );
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    ///
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    void                 set( int );
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    ///
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    void                 set( float );
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    ///
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    void                 set( double );
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    ///
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    void                 set( const MMatrix& );
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    ///
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    void                 set( const MFloatMatrix& );
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    ///
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    void                 set( const MVector& );
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    ///
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	void                 set( const MFloatVector& );
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    ///
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    void                 set( const MTime& );
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    ///
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	void                 set( short, short );
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    ///
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	void                 set( int, int );
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    ///
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	void                 set( float, float );
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    ///
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	void                 set( double, double );
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    ///
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	void                 set( short, short, short );
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    ///
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	void                 set( int, int, int );
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    ///
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	void                 set( float, float, float );
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    ///
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	void                 set( double, double, double );
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    ///
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	void                 set( const MString  &);
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	///
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	MStatus              set( const MObject &data );
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	///
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	MStatus              set( MPxData * data );
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    ///
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    MDataHandle          child( const MPlug & plug );
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    ///
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    MDataHandle          child( const MObject & attribute );
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    ///
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	MDataHandle& operator=( const MDataHandle& other );
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    ///
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    MDataHandle( const MDataHandle & );
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protected:
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// No protected members
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private:
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	friend class MDataBlock;
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	friend class MArrayDataBuilder;
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	friend class MArrayDataHandle;
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	friend class MItGeometry;
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	const char*	className() const;
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	MDataHandle( void* );
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	// Anonymous union to force byte-alignment on IRIX machines. 
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	// Fixes bug # 158251. In general, MDataHandle should appear
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	// before anything of size  8. This is just in case the user 
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	// doesn't do this. It forces the data to be on the next 
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	// word boundary. 
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	//
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	union { 
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		char	f_data[16];
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		int		_force_alignment; 
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	}; 
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};
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inline MDataHandle::MDataHandle( const MDataHandle &other )
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{
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	memcpy( this, &other, sizeof(MDataHandle) ); 
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}
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inline MDataHandle& MDataHandle::operator=( const MDataHandle& other )
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{
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	memcpy( this, &other, sizeof(MDataHandle) );
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	return *this;
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}
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#ifdef _WIN32
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#pragma warning(default: 4522)
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#endif // _WIN32
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// *****************************************************************************
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#endif /* __cplusplus */
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#endif /* _MDataHandle */
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