vtkXMLMultiBlockDataReader.h

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/*=========================================================================

  Program:   ParaView
  Module:    vtkXMLMultiBlockDataReader.h

  Copyright (c) Kitware, Inc.
  All rights reserved.
  See Copyright.txt or http://www.paraview.org/HTML/Copyright.html for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
#ifndef vtkXMLMultiBlockDataReader_h
#define vtkXMLMultiBlockDataReader_h

#include "vtkIOXMLModule.h" // For export macro
#include "vtkXMLCompositeDataReader.h"

class vtkMultiBlockDataSet;

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

protected:
  vtkXMLMultiBlockDataReader();
  ~vtkXMLMultiBlockDataReader() override;

  // Read the XML element for the subtree of a the composite dataset.
  // dataSetIndex is used to rank the leaf nodes in an inorder traversal.
  void ReadComposite(vtkXMLDataElement* element,
    vtkCompositeDataSet* composite, const char* filePath,
    unsigned int &dataSetIndex) override;

  // Reads file version < 1.0.
  virtual void ReadVersion0(vtkXMLDataElement* element,
    vtkCompositeDataSet* composite, const char* filePath,
    unsigned int &dataSetIndex);

  // Get the name of the data set being read.
  const char* GetDataSetName() override;

  int FillOutputPortInformation(int, vtkInformation* info) override;

  int RequestInformation(vtkInformation*,
                                 vtkInformationVector**,
                                 vtkInformationVector*) override;

  virtual int FillMetaData(vtkCompositeDataSet* metadata,
                           vtkXMLDataElement* element,
                           const std::string &filePath,
                           unsigned int& dataSetIndex);

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

#endif