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 "vtkInfovisLayoutModule.h" // For export macro
#include "vtkGraphAlgorithm.h"

class vtkEdgeLayoutStrategy;
class vtkEventForwarderCommand;

class VTKINFOVISLAYOUT_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 vtkMTimeType GetMTime();

protected:
  vtkEdgeLayout();
  ~vtkEdgeLayout();

  vtkEdgeLayoutStrategy* LayoutStrategy;


  vtkEventForwarderCommand *EventForwarder;
  unsigned long ObserverTag;

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

private:

  vtkGraph *InternalGraph;

  vtkEdgeLayout(const vtkEdgeLayout&) VTK_DELETE_FUNCTION;
  void operator=(const vtkEdgeLayout&) VTK_DELETE_FUNCTION;
};

#endif