text: /*=========================================================================
  
    Program:   Visualization Toolkit
    Module:    vtkAdjacentVertexIterator.cxx
  
    Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
    All rights reserved.
    See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
  
       This software is distributed WITHOUT ANY WARRANTY; without even
       the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
       PURPOSE.  See the above copyright notice for more information.
  
  =========================================================================*/
  /*-------------------------------------------------------------------------
    Copyright 2008 Sandia Corporation.
    Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
    the U.S. Government retains certain rights in this software.
  -------------------------------------------------------------------------*/
  
  #include "vtkAdjacentVertexIterator.h"
  
  #include "vtkObjectFactory.h"
  #include "vtkGraph.h"
  
  vtkCxxSetObjectMacro(vtkAdjacentVertexIterator, Graph, vtkGraph);
  vtkStandardNewMacro(vtkAdjacentVertexIterator);
  //----------------------------------------------------------------------------
  vtkAdjacentVertexIterator::vtkAdjacentVertexIterator()
  {
    this->Vertex = 0;
    this->Current = 0;
    this->End = 0;
    this->Graph = 0;
  }
  
  //----------------------------------------------------------------------------
  vtkAdjacentVertexIterator::~vtkAdjacentVertexIterator()
  {
    if (this->Graph)
    {
      this->Graph->Delete();
    }
  }
  
  //----------------------------------------------------------------------------
  void vtkAdjacentVertexIterator::Initialize(vtkGraph *graph, vtkIdType v)
  {
    this->SetGraph(graph);
    this->Vertex = v;
    vtkIdType nedges;
    this->Graph->GetOutEdges(this->Vertex, this->Current, nedges);
    this->End = this->Current + nedges;
  }
  
  //----------------------------------------------------------------------------
  void vtkAdjacentVertexIterator::PrintSelf(ostream& os, vtkIndent indent)
  {
    this->Superclass::PrintSelf(os,indent);
    os << indent << "Graph: " << (this->Graph ? "" : "(null)") << endl;
    if (this->Graph)
    {
      this->Graph->PrintSelf(os, indent.GetNextIndent());
    }
    os << indent << "Vertex: " << this->Vertex << endl;
  }
  