dox/Infovis/vtkEdgeLayout.h

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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkEdgeLayout.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 (c) Sandia Corporation
 See Copyright.txt or http://www.paraview.org/HTML/Copyright.html for details.
----------------------------------------------------------------------------*/
#ifndef __vtkEdgeLayout_h
#define __vtkEdgeLayout_h

#include "vtkGraphAlgorithm.h"

class vtkEdgeLayoutStrategy;
class vtkEventForwarderCommand;

class VTK_INFOVIS_EXPORT vtkEdgeLayout : public vtkGraphAlgorithm 
{
public:
  static vtkEdgeLayout *New();
  vtkTypeMacro(vtkEdgeLayout, vtkGraphAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent);


  void SetLayoutStrategy(vtkEdgeLayoutStrategy *strategy);
  vtkGetObjectMacro(LayoutStrategy, vtkEdgeLayoutStrategy);
  
  virtual unsigned long GetMTime();

protected:
  vtkEdgeLayout();
  ~vtkEdgeLayout();

  vtkEdgeLayoutStrategy* LayoutStrategy;


  vtkEventForwarderCommand *EventForwarder;
  unsigned long ObserverTag;

  int RequestData(
    vtkInformation *, 
    vtkInformationVector **, 
    vtkInformationVector *);
  
private:

  vtkGraph *InternalGraph;

  vtkEdgeLayout(const vtkEdgeLayout&);  // Not implemented.
  void operator=(const vtkEdgeLayout&);  // Not implemented.
};

#endif