vtkXMLPHyperTreeGridReader.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkXMLPHyperTreeGridReader_h
#define vtkXMLPHyperTreeGridReader_h

#include "vtkDeprecation.h" // For VTK_DEPRECATED_IN_9_7_0
#include "vtkIOXMLModule.h" // For export macro
#include "vtkXMLPDataObjectReader.h"

VTK_ABI_NAMESPACE_BEGIN
class vtkHyperTreeGrid;
class vtkHyperTreeGridNonOrientedCursor;
class vtkXMLHyperTreeGridReader;

class VTK_DEPRECATED_IN_9_7_0(
  "Use vtkHyperTreeGridReader instead") VTKIOXML_EXPORT vtkXMLPHyperTreeGridReader
  : public vtkXMLPDataObjectReader
{
public:
  vtkTypeMacro(vtkXMLPHyperTreeGridReader, vtkXMLPDataObjectReader);
  void PrintSelf(ostream& os, vtkIndent indent) override;
  static vtkXMLPHyperTreeGridReader* New();


  vtkHyperTreeGrid* GetOutput();
  vtkHyperTreeGrid* GetOutput(int idx);

  void CopyOutputInformation(vtkInformation* outInfo, int port) override;

protected:
  vtkXMLPHyperTreeGridReader();
  ~vtkXMLPHyperTreeGridReader() override;

  const char* GetDataSetName() override;

  vtkIdType GetNumberOfPoints();
  vtkIdType GetNumberOfPointsInPiece(int piece);

  vtkHyperTreeGrid* GetOutputAsHyperTreeGrid();
  vtkHyperTreeGrid* GetPieceInputAsHyperTreeGrid(int piece);

  void GetOutputUpdateExtent(int& piece, int& numberOfPieces);

  void SetupEmptyOutput() override;

  void SetupOutputData() override;

  void SetupOutputInformation(vtkInformation* outInfo) override;

  void SetupOutputTotals();

  void SetupNextPiece();

  void SetupPieces(int numPieces) override;

  void SetupUpdateExtent(int piece, int numberOfPieces);

  void ReadXMLData() override;

  int CanReadPiece(int index) override;

  int ReadPrimaryElement(vtkXMLDataElement* ePrimary) override;

  void DestroyPieces() override;

  using vtkXMLPDataObjectReader::ReadPiece;

  int ReadPiece(vtkXMLDataElement* ePiece) override;

  int ReadPieceData(int index);
  int ReadPieceData();
  void RecursivelyProcessTree(
    vtkHyperTreeGridNonOrientedCursor* inCursor, vtkHyperTreeGridNonOrientedCursor* outCursor);

  vtkXMLHyperTreeGridReader* CreatePieceReader();

  int FillOutputPortInformation(int, vtkInformation*) override;

  int RequestInformation(vtkInformation* request, vtkInformationVector** inputVector,
    vtkInformationVector* outputVector) override;

  void PieceProgressCallback() override;

  int UpdatePiece;
  int UpdateNumberOfPieces;

  int StartPiece;
  int EndPiece;

  vtkIdType TotalNumberOfPoints;
  vtkIdType PieceStartIndex;

  vtkXMLHyperTreeGridReader** PieceReaders;

private:
  vtkXMLPHyperTreeGridReader(const vtkXMLPHyperTreeGridReader&) = delete;
  void operator=(const vtkXMLPHyperTreeGridReader&) = delete;
};

VTK_ABI_NAMESPACE_END
#endif