vtkCellGridResponders.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkCellGridResponders_h
#define vtkCellGridResponders_h
 
#include "vtkCommonDataModelModule.h" // For export macro
#include "vtkObject.h"
#include "vtkSmartPointer.h" // For return values
#include "vtkStringToken.h"  // For API.
#include "vtkTypeName.h"     // For RegisterQueryResponder.
 
#include <unordered_map>
 
VTK_ABI_NAMESPACE_BEGIN
class vtkCellGridQuery;
class vtkCellGridResponderBase;
class vtkCellMetadata;
 
class VTKCOMMONDATAMODEL_EXPORT vtkCellGridResponders : public vtkObject
{
public:
  static vtkCellGridResponders* New();
 
  vtkTypeMacro(vtkCellGridResponders, vtkObject);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  template <typename CellType, typename QueryType, typename ResponderType>
  void RegisterQueryResponder(ResponderType* responder)
  {
    vtkStringToken queryTypeKey = vtk::TypeName<QueryType>();
    vtkStringToken cellTypeKey = vtk::TypeName<CellType>();
    this->Responders[queryTypeKey][cellTypeKey] = responder;
  }
 
  bool Query(vtkCellMetadata* cellType, vtkCellGridQuery* query);
 
protected:
  vtkCellGridResponders() = default;
  ~vtkCellGridResponders() override = default;
 
  std::unordered_map<vtkStringToken,
    std::unordered_map<vtkStringToken, vtkSmartPointer<vtkCellGridResponderBase>>>
    Responders;
  // std::unordered_multimap<vtkStringToken, vtkSmartPointer<vtkCellGridCache>> Caches;
 
private:
  vtkCellGridResponders(const vtkCellGridResponders&) = delete;
  void operator=(const vtkCellGridResponders&) = delete;
};
 
VTK_ABI_NAMESPACE_END
#endif