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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
/**
* @class vtkCellGridReader
* @brief Read a cell-grid file.
*
* vtkCellGridReader is a concrete subclass of vtkCellGridAlgorithm that reads data
* into a vtkCellGrid instance (which is really just a collection of array groups).
*
* @sa
* vtkCellGridAlgorithm
* vtkCellGridImporter
*/
#ifndef vtkCellGridReader_h
#define vtkCellGridReader_h
#include "vtkCellGridAlgorithm.h"
#include "vtkIOCellGridModule.h" // For export macro
#include "vtkNew.h" // For New
#include "vtkSmartPointer.h" // For SmartPointer
// clang-format off
#include <vtk_nlohmannjson.h> // For API.
#include VTK_NLOHMANN_JSON(json.hpp) // For API.
// clang-format on
#include <string> // For std::string
#include <vector> // For std::vector
VTK_ABI_NAMESPACE_BEGIN
class vtkCellGridIOQuery;
class VTKIOCELLGRID_EXPORT vtkCellGridReader : public vtkCellGridAlgorithm
{
public:
static vtkCellGridReader* New();
vtkTypeMacro(vtkCellGridReader, vtkCellGridAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent) override;
///@{
/**
* Set/Get the name of the file from which to read data.
*/
vtkSetFilePathMacro(FileName);
vtkGetFilePathMacro(FileName);
///@}
/// Read directly from \a jj into \a grid.
bool FromJSON(const nlohmann::json& jj, vtkCellGrid* grid);
protected:
vtkCellGridReader();
~vtkCellGridReader() override;
char* FileName = nullptr;
vtkNew<vtkCellGridIOQuery> Query;
int RequestInformation(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
private:
vtkCellGridReader(const vtkCellGridReader&) = delete;
void operator=(const vtkCellGridReader&) = delete;
};
VTK_ABI_NAMESPACE_END
#endif
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