vtkAdjacentVertexIterator.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkAdjacentVertexIterator.h
 
  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.
-------------------------------------------------------------------------*/
#ifndef vtkAdjacentVertexIterator_h
#define vtkAdjacentVertexIterator_h
 
#include "vtkCommonDataModelModule.h" // For export macro
#include "vtkObject.h"
 
#include "vtkGraph.h" // For edge type definitions
 
class vtkGraphEdge;
 
class VTKCOMMONDATAMODEL_EXPORT vtkAdjacentVertexIterator : public vtkObject
{
public:
  static vtkAdjacentVertexIterator* New();
  vtkTypeMacro(vtkAdjacentVertexIterator, vtkObject);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  void Initialize(vtkGraph* g, vtkIdType v);
 
 
  vtkGetObjectMacro(Graph, vtkGraph);
  vtkGetMacro(Vertex, vtkIdType);
 
 
  vtkIdType Next()
  {
    vtkOutEdgeType e = *this->Current;
    ++this->Current;
    return e.Target;
  }
 
  bool HasNext() { return this->Current != this->End; }
 
protected:
  vtkAdjacentVertexIterator();
  ~vtkAdjacentVertexIterator() override;
 
  virtual void SetGraph(vtkGraph* graph);
 
  vtkGraph* Graph;
  const vtkOutEdgeType* Current;
  const vtkOutEdgeType* End;
  vtkIdType Vertex;
 
private:
  vtkAdjacentVertexIterator(const vtkAdjacentVertexIterator&) = delete;
  void operator=(const vtkAdjacentVertexIterator&) = delete;
};
 
#endif