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

  Program:   Visualization Toolkit
  Module:    vtkXdmf3HeavyDataHandler.h
  Language:  C++

  Copyright (c) 1993-2002 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.

=========================================================================*/
#ifndef vtkXdmf3HeavyDataHandler_h
#define vtkXdmf3HeavyDataHandler_h

#include "vtkIOXdmf3Module.h" // For export macro

#include "XdmfItem.hpp"

class vtkDataObject;
class vtkDataSet;
class vtkImageData;
class vtkMutableDirectedGraph;
class vtkRectilinearGrid;
class vtkStructuredGrid;
class vtkUnstructuredGrid;
class vtkXdmf3ArrayKeeper;
class vtkXdmf3ArraySelection;

class XdmfCurvilinearGrid;
class XdmfGraph;
class XdmfGrid;
class XdmfItem;
class XdmfRectilinearGrid;
class XdmfRegularGrid;
class XdmfSet;
class XdmfUnstructuredGrid;

class VTKIOXDMF3_EXPORT vtkXdmf3HeavyDataHandler
{
public:

  static shared_ptr<vtkXdmf3HeavyDataHandler> New(
      vtkXdmf3ArraySelection *fs,
      vtkXdmf3ArraySelection *cs,
      vtkXdmf3ArraySelection *ps,
      vtkXdmf3ArraySelection *gc,
      vtkXdmf3ArraySelection *sc,
      unsigned int processor, unsigned int nprocessors,
      bool dt, double t,
      vtkXdmf3ArrayKeeper *keeper,
      bool asTime );

  ~vtkXdmf3HeavyDataHandler();

  vtkDataObject *Populate(shared_ptr<XdmfItem> item, vtkDataObject *toFill);

  vtkXdmf3ArrayKeeper* Keeper;

protected:

  vtkXdmf3HeavyDataHandler();

  bool ShouldRead(unsigned int piece, unsigned int npieces);

  bool GridEnabled(shared_ptr<XdmfGrid> grid);
  bool GridEnabled(shared_ptr<XdmfGraph> graph);
  bool SetEnabled(shared_ptr<XdmfSet> set);

  bool ForThisTime(shared_ptr<XdmfGrid> grid);
  bool ForThisTime(shared_ptr<XdmfGraph> graph);

  vtkDataObject *MakeUnsGrid(shared_ptr<XdmfUnstructuredGrid> grid,
                             vtkUnstructuredGrid *dataSet,
                             vtkXdmf3ArrayKeeper *keeper);

  vtkDataObject *MakeRecGrid(shared_ptr<XdmfRectilinearGrid> grid,
                             vtkRectilinearGrid *dataSet,
                             vtkXdmf3ArrayKeeper *keeper);

  vtkDataObject *MakeCrvGrid(shared_ptr<XdmfCurvilinearGrid> grid,
                             vtkStructuredGrid *dataSet,
                             vtkXdmf3ArrayKeeper *keeper);

  vtkDataObject *MakeRegGrid(shared_ptr<XdmfRegularGrid> grid,
                             vtkImageData *dataSet,
                             vtkXdmf3ArrayKeeper *keeper);
  vtkDataObject *MakeGraph(shared_ptr<XdmfGraph> grid,
                           vtkMutableDirectedGraph *dataSet,
                           vtkXdmf3ArrayKeeper *keeper);

  vtkDataObject *ExtractSet(unsigned int setnum, shared_ptr<XdmfGrid> grid,
                            vtkDataSet *dataSet,
                            vtkUnstructuredGrid *subSet,
                            vtkXdmf3ArrayKeeper *keeper);

  bool doTime;
  double time;
  unsigned int Rank;
  unsigned int NumProcs;
  vtkXdmf3ArraySelection* FieldArrays;
  vtkXdmf3ArraySelection* CellArrays;
  vtkXdmf3ArraySelection* PointArrays;
  vtkXdmf3ArraySelection* GridsCache;
  vtkXdmf3ArraySelection* SetsCache;
  bool AsTime;
};

#endif //vtkXdmf3HeavyDataHandler_h