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

  Program:   Visualization Toolkit
  Module:    vtkPBGLDistributedGraphHelper.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) 2008 The Trustees of Indiana University.
 * Use, modification and distribution is subject to the Boost Software
 * License, Version 1.0. (See http://www.boost.org/LICENSE_1_0.txt)
 */
#ifndef vtkPBGLDistributedGraphHelper_h
#define vtkPBGLDistributedGraphHelper_h

#include "vtkInfovisParallelModule.h" // For export macro
#include "vtkDistributedGraphHelper.h"

class vtkPBGLDistributedGraphHelperInternals;

//BTX
namespace boost { namespace graph { namespace distributed {
  class mpi_process_group;
} } } 
//ETX

#if !defined(VTK_LEGACY_REMOVE)
class VTKINFOVISPARALLEL_EXPORT vtkPBGLDistributedGraphHelper : public vtkDistributedGraphHelper
{
 public:
  vtkTypeMacro(vtkPBGLDistributedGraphHelper,vtkDistributedGraphHelper);

  static vtkPBGLDistributedGraphHelper* New();

  void Synchronize();

  vtkDistributedGraphHelper *Clone();

  //BTX

  boost::graph::distributed::mpi_process_group GetProcessGroup();
  //ETX

  vtkPBGLDistributedGraphHelperInternals *Internals;

  void PrintSelf(ostream& os, vtkIndent indent);

 protected:
  vtkPBGLDistributedGraphHelper();
  ~vtkPBGLDistributedGraphHelper();

  //BTX
  enum Tags
  {
    // Find a vertex by pedigree ID. This always has a reply.
    FIND_VERTEX_TAG,

    // Find the source and target by edge ID. This always has a reply.
    FIND_EDGE_SOURCE_TARGET_TAG,

    // Add a vertex with the given pedigree ID.
    ADD_VERTEX_NO_REPLY_TAG,
    ADD_VERTEX_WITH_REPLY_TAG,

    // Add a vertex with the given property array.
    ADD_VERTEX_PROPS_NO_REPLY_TAG,
    ADD_VERTEX_PROPS_WITH_REPLY_TAG,

    // Add a back edge; the forward edge has already been added.
    ADD_DIRECTED_BACK_EDGE_TAG,
    ADD_UNDIRECTED_BACK_EDGE_TAG,

    // Add an edge; don't reply.
    ADD_DIRECTED_EDGE_NO_REPLY_TAG,
    ADD_UNDIRECTED_EDGE_NO_REPLY_TAG,

    // Add an edge; return the edge ID.
    ADD_DIRECTED_EDGE_WITH_REPLY_TAG,
    ADD_UNDIRECTED_EDGE_WITH_REPLY_TAG,

    // Add an edge via (pedigree, id); don't reply.
    ADD_DIRECTED_EDGE_NI_NO_REPLY_TAG,
    ADD_UNDIRECTED_EDGE_NI_NO_REPLY_TAG,

    // Add an edge via (pedigree, id); return the edge ID.
    ADD_DIRECTED_EDGE_NI_WITH_REPLY_TAG,
    ADD_UNDIRECTED_EDGE_NI_WITH_REPLY_TAG,

    // Add an edge via (id, pedigree); don't reply.
    ADD_DIRECTED_EDGE_IN_NO_REPLY_TAG,
    ADD_UNDIRECTED_EDGE_IN_NO_REPLY_TAG,

    // Add an edge via (pedigree, pedigree); don't reply.
    ADD_DIRECTED_EDGE_NN_NO_REPLY_TAG,
    ADD_UNDIRECTED_EDGE_NN_NO_REPLY_TAG

  };


  void AddVertexInternal(vtkVariantArray *propertyArr,
                         vtkIdType *vertex);

  void AddVertexInternal(const vtkVariant& pedigreeId, vtkIdType *vertex);


  void AddEdgeInternal(vtkIdType u, vtkIdType v, bool directed,
                       vtkVariantArray *propertyArr,
                       vtkEdgeType *edge);


  void AddEdgeInternal(const vtkVariant& uPedigreeId, vtkIdType v,
                       bool directed, vtkVariantArray *propertyArr,
                       vtkEdgeType *edge);


  void AddEdgeInternal(vtkIdType u, const vtkVariant& vPedigreeId,
                       bool directed, vtkVariantArray *propertyArr,
                       vtkEdgeType *edge);


  void AddEdgeInternal(const vtkVariant& uPedigreeId,
                       const vtkVariant& vPedigreeId,
                       bool directed, vtkVariantArray *propertyArr,
                       vtkEdgeType *edge);

  vtkIdType FindVertex(const vtkVariant& pedigreeId);


  void FindEdgeSourceAndTarget(vtkIdType id,
                               vtkIdType *source, vtkIdType *target);


  void AttachToGraph(vtkGraph *graph);
  //ETX

 private:
  vtkPBGLDistributedGraphHelper(const vtkPBGLDistributedGraphHelper&); // Not implemented
  void operator=(const vtkPBGLDistributedGraphHelper&); // Not implemented

  //BTX
  friend class vtkPBGLDistributedGraphHelperInternals;
  //ETX
};

#endif //VTK_LEGACY_REMOVE
#endif // vtkPBGLDistributedGraphHelper_h