vtkHyperTreeGridExtractGhostCells.h

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

#include "vtkFiltersHyperTreeModule.h" // For export macro
#include "vtkHyperTreeGridAlgorithm.h"

#include "vtkNew.h" // To instantiate the mask array

VTK_ABI_NAMESPACE_BEGIN
class vtkBitArray;
class vtkUnsignedCharArray;
class vtkHyperTreeGridNonOrientedCursor;

class VTKFILTERSHYPERTREE_EXPORT vtkHyperTreeGridExtractGhostCells
  : public vtkHyperTreeGridAlgorithm
{
public:
  static vtkHyperTreeGridExtractGhostCells* New();
  vtkTypeMacro(vtkHyperTreeGridExtractGhostCells, vtkHyperTreeGridAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;


  vtkSetStringMacro(OutputGhostArrayName);
  vtkGetStringMacro(OutputGhostArrayName);

protected:
  vtkHyperTreeGridExtractGhostCells();
  ~vtkHyperTreeGridExtractGhostCells() override = default;

  int ProcessTrees(vtkHyperTreeGrid*, vtkDataObject*) override;

  bool RecursivelyMaskNonGhost(vtkHyperTreeGridNonOrientedCursor*);

private:
  char* OutputGhostArrayName = nullptr;
  vtkNew<vtkBitArray> OutMask;
  vtkBitArray* InMask = nullptr;
  vtkUnsignedCharArray* InGhost = nullptr;

  vtkHyperTreeGridExtractGhostCells(const vtkHyperTreeGridExtractGhostCells&) = delete;
  void operator=(const vtkHyperTreeGridExtractGhostCells&) = delete;
};

VTK_ABI_NAMESPACE_END
#endif /* vtkHyperTreeGridExtractGhostCells */