#ifndef _MItMeshEdge
#define _MItMeshEdge
//-
// ===========================================================================
// Copyright 2018 Autodesk, Inc. All rights reserved.
//
// Use of this software is subject to the terms of the Autodesk license
// agreement provided at the time of installation or download, or which
// otherwise accompanies this software in either electronic or hard copy form.
// ===========================================================================
//+
//
// CLASS:    MItMeshEdge
//
// ****************************************************************************

#if defined __cplusplus

// ****************************************************************************
// INCLUDED HEADER FILES


#include <maya/MFnDagNode.h>
#include <maya/MObject.h>
#include <maya/MVector.h>
#include <maya/MPoint.h>
#include <maya/MDeprecate.h>

OPENMAYA_MAJOR_NAMESPACE_OPEN

// ****************************************************************************
// CLASS DECLARATION (MItMeshEdge)

//! \ingroup OpenMaya
//! \brief Polygon edge iterator. 
/*!
	This class is the edge iterator for polygonal surfaces.

	The iterator functions in two modes depending on whether a component
	is specified. When a component is not given or is NULL the iteration
	will be over all edges for the polygon.  When a component is given
	this iterator will iterate over the edges specified in the component.
	When iterating over components a DAG path to the polygon must also be
	supplied.
*/
class OPENMAYA_EXPORT MItMeshEdge
{
public:
    MItMeshEdge( MObject & polyObject, MStatus * ReturnStatus = NULL );
	MItMeshEdge( MObject & polyObject, MObject & component, MStatus * ReturnStatus = NULL );
    MItMeshEdge( const MDagPath &polyObject, MObject & component = MObject::kNullObj, MStatus * ReturnStatus = NULL );
	virtual ~MItMeshEdge();
    bool        isDone( MStatus * ReturnStatus = NULL );
    MStatus     next();
    MStatus     reset();
    MStatus     reset( MObject & polyObject, MObject & component = MObject::kNullObj );
    MStatus     reset( const MDagPath &polyObject, MObject & component = MObject::kNullObj );
    int        count( MStatus * ReturnStatus = NULL );
    MPoint      center( MSpace::Space space = MSpace::kObject,
						MStatus * ReturnStatus = NULL );
    MPoint      point( int index, MSpace::Space space = MSpace::kObject,
						MStatus * ReturnStatus = NULL );
    MStatus     setPoint( const MPoint & point, unsigned int index,
						MSpace::Space space = MSpace::kObject );
	bool		isSmooth( MStatus * ReturnStatus = NULL ) const;
	MStatus		setSmoothing( bool smooth = true );
	// Obsolete
    OPENMAYA_DEPRECATED(2019, "This method is no longer required in Maya3.0 and later versions. (In previous versions, this method was needed to clean up the geometry after setSmoothing has been done on one or more edges).")
	MStatus		cleanupSmoothing();
    int         index( int index, MStatus * ReturnStatus = NULL );
    int         index( MStatus * ReturnStatus = NULL ) const;
	// Obsolete
	OPENMAYA_DEPRECATED(2019, "Use MItMeshEdge::currentItem instead.")
	MObject		edge( MStatus * ReturnStatus = NULL );
	MObject		currentItem( MStatus * ReturnStatus = NULL );
    MStatus     updateSurface();
    MStatus     geomChanged();
	MStatus		setIndex(int index, int &prevIndex );
	int			getConnectedFaces(MIntArray & faceList,
								  MStatus * ReturnStatus = NULL ) const;
	int			getConnectedEdges(MIntArray & edgeList,
								  MStatus * ReturnStatus = NULL ) const;
	MStatus		numConnectedFaces(int &faceCount ) const;
	MStatus		numConnectedEdges(int &edgeCount ) const;
	bool		connectedToFace( int index, MStatus * ReturnStatus = NULL);
	bool		connectedToEdge( int index, MStatus * ReturnStatus = NULL);
	bool		onBoundary(MStatus * ReturnStatus = NULL );
	MStatus		getLength(double &length,
						MSpace::Space space = MSpace::kObject );

    static const char*  className();

protected:
// No protected members

private:
    void     *       f_it;
    MPtrBase *       f_shape;
    void	 *       f_path;
    void	 *       f_geom;
	void     *       fElements;
	int              fCurrentElement;
	int              fMaxElements;
	int				 fCurrentIndex;
	void	*		 f_edge;
	void	*		 f_ref;
	bool			 fDirectIndex;
	bool			 fCustomEdgeComponent;
};

OPENMAYA_NAMESPACE_CLOSE

#endif /* __cplusplus */
#endif /* _MItMeshEdge */