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

  Program:   ParaView
  Module:    vtkPVClassNameInformation.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.

=========================================================================*/
// .NAME vtkPVClassNameInformation - Holds class name
// .SECTION Description
// This information object gets the class name of the input VTK object.  This
// is separate from vtkPVDataInformation because it can be determined before
// Update is called and because it operates on any VTK object.

#ifndef vtkPVClassNameInformation_h
#define vtkPVClassNameInformation_h

#include "vtkPVClientServerCoreCoreModule.h" //needed for exports
#include "vtkPVInformation.h"

class VTKPVCLIENTSERVERCORECORE_EXPORT vtkPVClassNameInformation : public vtkPVInformation
{
public:
  static vtkPVClassNameInformation* New();
  vtkTypeMacro(vtkPVClassNameInformation, vtkPVInformation);
  void PrintSelf(ostream &os, vtkIndent indent);

  // Description:
  // Port number controls which output port the information is gathered from.
  // This is only applicable when the vtkObject from which the information being
  // gathered is a vtkAlgorithm. Set it to -1(default), to return the classname
  // of the vtkAlgorithm itself.
  // This is the only parameter that can be set on  the client-side before
  // gathering the information.
  vtkSetMacro(PortNumber, int);

  // Description:
  // Get class name of VTK object.
  vtkGetStringMacro(VTKClassName);

  // Description:
  // Transfer information about a single object into this object.
  virtual void CopyFromObject(vtkObject*);

  // Description:
  // Merge another information object.
  virtual void AddInformation(vtkPVInformation*);

  // Description:
  // Manage a serialized version of the information.
  virtual void CopyToStream(vtkClientServerStream*);
  virtual void CopyFromStream(const vtkClientServerStream*);

  // Description:
  // Serialize/Deserialize the parameters that control how/what information is
  // gathered. This are different from the ivars that constitute the gathered
  // information itself. For example, PortNumber on vtkPVDataInformation
  // controls what output port the data-information is gathered from.
  virtual void CopyParametersToStream(vtkMultiProcessStream&);
  virtual void CopyParametersFromStream(vtkMultiProcessStream&);

protected:
  vtkPVClassNameInformation();
  ~vtkPVClassNameInformation();

  int PortNumber;
  char* VTKClassName;
  vtkSetStringMacro(VTKClassName);
private:
  vtkPVClassNameInformation(const vtkPVClassNameInformation&); // Not implemented
  void operator=(const vtkPVClassNameInformation&); // Not implemented
};

#endif