vtkEdgeTable.h

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

#include "vtkCommonDataModelModule.h" // For export macro
#include "vtkObject.h"

#include <vector> // For std::vector

VTK_ABI_NAMESPACE_BEGIN
class vtkIdList;
class vtkPoints;

class VTKCOMMONDATAMODEL_EXPORT vtkEdgeTable : public vtkObject
{
public:
  static vtkEdgeTable* New();

  vtkTypeMacro(vtkEdgeTable, vtkObject);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  void Initialize();

  int InitEdgeInsertion(vtkIdType numPoints, int storeAttributes = 0);

  vtkIdType InsertEdge(vtkIdType p1, vtkIdType p2);

  void InsertEdge(vtkIdType p1, vtkIdType p2, vtkIdType attributeId);

  void InsertEdge(vtkIdType p1, vtkIdType p2, void* ptr);

  vtkIdType IsEdge(vtkIdType p1, vtkIdType p2);

  void IsEdge(vtkIdType p1, vtkIdType p2, void*& ptr);

  int InitPointInsertion(vtkPoints* newPts, vtkIdType estSize);

  int InsertUniquePoint(vtkIdType p1, vtkIdType p2, double x[3], vtkIdType& ptId);


  vtkGetMacro(NumberOfEdges, vtkIdType);

  void InitTraversal();

  vtkIdType GetNextEdge(vtkIdType& p1, vtkIdType& p2);

  int GetNextEdge(vtkIdType& p1, vtkIdType& p2, void*& ptr);

  void Reset();

protected:
  vtkEdgeTable();
  ~vtkEdgeTable() override;

  std::vector<vtkSmartPointer<vtkIdList>> Table;
  vtkIdType TableMaxId; // maximum point id inserted
  int Position[2];
  int Extend;
  vtkIdType NumberOfEdges;
  vtkPoints* Points; // support point insertion

  int StoreAttributes; //==0:no attributes stored;==1:vtkIdType;==2:void*
  std::vector<vtkSmartPointer<vtkIdList>> Attributes; // used to store IdTypes attributes
  std::vector<std::vector<void*>> PointerAttributes;  // used to store void* pointers

  void Resize(vtkIdType size);

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

VTK_ABI_NAMESPACE_END
#endif