vtkXMLGenericDataObjectReader.h

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

#include "vtkIOXMLModule.h"  // For export macro
#include "vtkSmartPointer.h" // for API
#include "vtkXMLDataReader.h"

VTK_ABI_NAMESPACE_BEGIN
class vtkImageData;
class vtkMultiBlockDataSet;
class vtkOverlappingAMR;
class vtkPolyData;
class vtkRectilinearGrid;
class vtkStructuredGrid;
class vtkUnstructuredGrid;
class vtkXMLFileReadTester;

class VTKIOXML_EXPORT vtkXMLGenericDataObjectReader : public vtkXMLDataReader
{
public:
  vtkTypeMacro(vtkXMLGenericDataObjectReader, vtkXMLDataReader);
  void PrintSelf(ostream& os, vtkIndent indent) override;
  static vtkXMLGenericDataObjectReader* New();


  vtkDataObject* GetOutput();
  vtkDataObject* GetOutput(int idx);


  vtkOverlappingAMR* GetOverlappingAMROutput();
  vtkImageData* GetImageDataOutput();
  vtkMultiBlockDataSet* GetMultiBlockDataSetOutput();
  vtkPolyData* GetPolyDataOutput();
  vtkRectilinearGrid* GetRectilinearGridOutput();
  vtkStructuredGrid* GetStructuredGridOutput();
  vtkUnstructuredGrid* GetUnstructuredGridOutput();

  vtkIdType GetNumberOfPoints() override;

  vtkIdType GetNumberOfCells() override;

  void SetupEmptyOutput() override;

  virtual int ReadOutputType(const char* name, bool& parallel);

  static vtkSmartPointer<vtkXMLReader> CreateReader(int data_object_type, bool parallel);

  int CanReadFileWithDataType(const char* dsname) override;

protected:
  vtkXMLGenericDataObjectReader();
  ~vtkXMLGenericDataObjectReader() override;

  const char* GetDataSetName() override;

  int RequestDataObject(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
  int RequestInformation(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
  virtual int RequestUpdateExtent(vtkInformation* request, vtkInformationVector** inputVector,
    vtkInformationVector* outputVector);

  int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
  int FillOutputPortInformation(int, vtkInformation*) override;

  vtkXMLReader* Reader; // actual reader

private:
  vtkXMLGenericDataObjectReader(const vtkXMLGenericDataObjectReader&) = delete;
  void operator=(const vtkXMLGenericDataObjectReader&) = delete;

  int ReadOutputType(std::istream* stream, bool& parallel);
  int ReadOutputType(vtkXMLFileReadTester* tester, bool& parallel);

  int GetTypeIdFromClassName(const std::string& dsname);
};

VTK_ABI_NAMESPACE_END
#endif