
#ifndef _MItDependencyNodes
#define _MItDependencyNodes
//
//-
// ==========================================================================
// Copyright (C) 1995 - 2006 Autodesk, Inc., and/or its licensors.  All 
// rights reserved.
// 
// The coded instructions, statements, computer programs, and/or related 
// material (collectively the "Data") in these files contain unpublished 
// information proprietary to Autodesk, Inc. ("Autodesk") and/or its 
// licensors,  which is protected by U.S. and Canadian federal copyright law 
// and by international treaties.
// 
// The Data may not be disclosed or distributed to third parties or be 
// copied or duplicated, in whole or in part, without the prior written 
// consent of Autodesk.
// 
// The copyright notices in the Software and this entire statement, 
// including the above license grant, this restriction and the following 
// disclaimer, must be included in all copies of the Software, in whole 
// or in part, and all derivative works of the Software, unless such copies 
// or derivative works are solely in the form of machine-executable object 
// code generated by a source language processor.

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND. 
// AUTODESK DOES NOT MAKE AND HEREBY DISCLAIMS ANY EXPRESS OR IMPLIED 
// WARRANTIES INCLUDING, BUT NOT LIMITED TO, THE WARRANTIES OF 
// NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, 
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// CONSEQUENTIAL DAMAGES, EVEN IF AUTODESK AND/OR ITS LICENSORS HAS 
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// ==========================================================================
//+
//
// CLASS:    MItDependencyNodes
//
// *****************************************************************************
//
// CLASS DESCRIPTION (MItDependencyNodes)
//
// Use the dependency node iterator to traverse all the nodes in Maya's
// Dependency Graph.
// 
// With filtering enabled, the iterator checks to see if the node is
// compatible with the type specified by the filter.  See MFn::Type for a
// list of all valid types.
// 
// Since MObjects may be compatible with more than one type (nodes are
// organised in a hierarchy) the MObject::hasFn() method can be used to
// further check for compatible types.
// 
// Any compatible Function Set can be attached to the retrieved object to
// query or or edit it.  Often you will want to use the dependency node
// function set (MFnDependencyNode), which is compatible with all
// dependency nodes, to perform queries on each node as the iterator
// Traverses the Dependency Graph.
// 
// *****************************************************************************

#if defined __cplusplus

// *****************************************************************************

// INCLUDED HEADER FILES


#include <maya/MObject.h>
#include <maya/MStatus.h>
#include <maya/MIntArray.h>

// *****************************************************************************

// DECLARATIONS

class MDagPath;
class MDagPathArray;
class MString;
class MIteratorType;

// *****************************************************************************

// CLASS DECLARATION (MItDependencyNodes)

/// Dependency Node iterator
/**

Iterate over all nodes in the dependency graph.

*/
#ifdef _WIN32
#pragma warning(disable: 4522)
#endif // _WIN32

class OPENMAYA_EXPORT MItDependencyNodes  
{
public:
    ///
				MItDependencyNodes( MFn::Type filter = MFn::kInvalid,
									MStatus * ReturnStatus = NULL );
    ///
				MItDependencyNodes( MIteratorType& infoObject,
									MStatus * ReturnStatus = NULL );
	///
	virtual		~MItDependencyNodes();

    ///
	MStatus		reset( MFn::Type filter = MFn::kInvalid );
    ///
	MStatus		reset(MIteratorType& infoObject);

    ///
	MObject		thisNode( MStatus * ReturnStatus = NULL ) const;
    ///
	MStatus		next();
    ///
	bool		isDone( MStatus * ReturnStatus = NULL ) const; 

    ///	OBSOLETE
	MObject		item( MStatus * ReturnStatus = NULL ) const;


protected:
// No protected members

private:
	static const char* className();
	bool objectHasFnOnFilterOrList(const MObject& mobject);

	void*		f_data;
	MFn::Type	f_filter;

	MIntArray	filterList;
	bool		useFilterList;
};

#ifdef _WIN32
#pragma warning(default: 4522)
#endif // _WIN32

// *****************************************************************************
#endif /* __cplusplus */
#endif /* _MItDependencyNodes */
