vtkXMLCompositeDataWriter.h

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/*=========================================================================
 
  Program:   ParaView
  Module:    vtkXMLCompositeDataWriter.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 vtkXMLCompositeDataWriter_h
#define vtkXMLCompositeDataWriter_h
 
#include "vtkIOXMLModule.h" // For export macro
#include "vtkStdString.h"   // needed for vtkStdString.
#include "vtkXMLWriter.h"
 
class vtkCallbackCommand;
class vtkCompositeDataSet;
class vtkXMLDataElement;
class vtkXMLCompositeDataWriterInternals;
 
class VTKIOXML_EXPORT vtkXMLCompositeDataWriter : public vtkXMLWriter
{
public:
  vtkTypeMacro(vtkXMLCompositeDataWriter, vtkXMLWriter);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  const char* GetDefaultFileExtension() override;
 
 
  vtkGetMacro(GhostLevel, int);
  vtkSetMacro(GhostLevel, int);
 
 
  vtkGetMacro(WriteMetaFile, int);
  virtual void SetWriteMetaFile(int flag);
 
  vtkTypeBool ProcessRequest(
    vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
 
protected:
  vtkXMLCompositeDataWriter();
  ~vtkXMLCompositeDataWriter() override;
 
  int GetDataSetMajorVersion() override { return 1; }
  int GetDataSetMinorVersion() override { return 0; }
 
  vtkStdString CreatePieceFileName(int Piece);
 
  // see algorithm for more info
  int FillInputPortInformation(int port, vtkInformation* info) override;
 
  int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
  int RequestUpdateExtent(vtkInformation*, vtkInformationVector**, vtkInformationVector*);
 
  int WriteData() override;
  const char* GetDataSetName() override;
 
  // Create a default executive.
  vtkExecutive* CreateDefaultExecutive() override;
 
  vtkInformation* InputInformation;
 
  virtual void FillDataTypes(vtkCompositeDataSet*);
 
  unsigned int GetNumberOfDataTypes();
 
  int* GetDataTypesPointer();
 
  // Methods to create the set of writers matching the set of inputs.
  void CreateWriters(vtkCompositeDataSet*);
  vtkXMLWriter* GetWriter(int index);
 
  // Methods to help construct internal file names.
  void SplitFileName();
  VTK_FILEPATH const char* GetFilePrefix();
  VTK_FILEPATH const char* GetFilePath();
 
  const char* GetDefaultFileExtensionForDataSet(int dataset_type);
 
  int WriteMetaFileIfRequested();
 
  // Make a directory.
  void MakeDirectory(const char* name);
 
  // Remove a directory.
  void RemoveADirectory(const char* name);
 
  // Internal implementation details.
  vtkXMLCompositeDataWriterInternals* Internal;
 
  // The number of ghost levels to write for unstructured data.
  int GhostLevel;
 
  int WriteMetaFile;
 
  // Callback registered with the InternalProgressObserver.
  static void ProgressCallbackFunction(vtkObject*, unsigned long, void*, void*);
  // Progress callback from internal writer.
  virtual void ProgressCallback(vtkAlgorithm* w);
 
  // The observer to report progress from the internal writer.
  vtkCallbackCommand* InternalProgressObserver;
 
  virtual int WriteComposite(
    vtkCompositeDataSet* compositeData, vtkXMLDataElement* element, int& writerIdx) = 0;
 
  virtual int WriteNonCompositeData(
    vtkDataObject* dObj, vtkXMLDataElement* element, int& writerIdx, const char* fileName);
 
  virtual void RemoveWrittenFiles(const char* SubDirectory);
 
private:
  vtkXMLCompositeDataWriter(const vtkXMLCompositeDataWriter&) = delete;
  void operator=(const vtkXMLCompositeDataWriter&) = delete;
};
 
#endif