vtkEdgesCacheInternal.h

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// SPDX-FileCopyrightText: Copyright (c) Kitware Inc.
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkEdgesCacheInternal_h
#define vtkEdgesCacheInternal_h

#include "vtkABINamespace.h"
#include "vtkEdgeInternal.h"

#include "vtkNew.h" // for vtkNew

#include <map>
#include <string>
#include <vector>

class vtkDataObject;
class vtkDataSet;
class vtkIdList;
class vtkPointSet;

class vtkEdgesCacheInternal
{
public:
  vtkEdgesCacheInternal();
  vtkEdgesCacheInternal(const std::string& pointFlagArrayName, double pointFlag);
  ~vtkEdgesCacheInternal();

  void InvalidateCache();

  bool UpdateAttributes(vtkDataObject* input, vtkDataObject* output);

private:
  bool UpdateLeafAttributes(vtkDataSet* input, vtkPointSet* output);

  void CacheLeafEdges(vtkDataSet* input, vtkPointSet* output);

  std::map<vtkDataSet*, std::vector<vtkEdgeInternal>> OriginalEdges;
  struct IdMap
  {
    vtkNew<vtkIdList> Source;
    vtkNew<vtkIdList> Destination;
  };
  std::map<vtkDataSet*, IdMap> OriginalPoints;

  // Used to determine if a point is a copy from an input point.
  std::string PointFlagArray;
  double InputPointFlag;
};

#endif