dox/Rendering/Label/vtkLabelHierarchyAlgorithm.h

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

  Program:   Visualization Toolkit
  Module:    vtkLabelHierarchyAlgorithm.h

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm 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 __vtkLabelHierarchyAlgorithm_h
#define __vtkLabelHierarchyAlgorithm_h

#include "vtkRenderingLabelModule.h" // For export macro
#include "vtkAlgorithm.h"

class vtkDataSet;
class vtkLabelHierarchy;

class VTKRENDERINGLABEL_EXPORT vtkLabelHierarchyAlgorithm : public vtkAlgorithm
{
public:
  static vtkLabelHierarchyAlgorithm *New();
  vtkTypeMacro(vtkLabelHierarchyAlgorithm,vtkAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent);


  vtkLabelHierarchy* GetOutput();
  vtkLabelHierarchy* GetOutput(int);
  virtual void SetOutput(vtkDataObject* d);


  virtual int ProcessRequest(vtkInformation*,
                             vtkInformationVector**,
                             vtkInformationVector*);

  // this method is not recommended for use, but lots of old style filters use it
  vtkDataObject* GetInput();
  vtkDataObject* GetInput(int port);
  vtkLabelHierarchy* GetLabelHierarchyInput(int port);


  void SetInputData( vtkDataObject* );
  void SetInputData( int, vtkDataObject* );


  void AddInputData( vtkDataObject* );
  void AddInputData( int, vtkDataObject* );

protected:
  vtkLabelHierarchyAlgorithm();
  ~vtkLabelHierarchyAlgorithm();


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

  // convenience method
  virtual int RequestInformation(
    vtkInformation* request,
    vtkInformationVector** inputVector,
    vtkInformationVector* outputVector );


  virtual int RequestData(
    vtkInformation* request,
    vtkInformationVector** inputVector,
    vtkInformationVector* outputVector );


  virtual int RequestUpdateExtent(
    vtkInformation*,
    vtkInformationVector**,
    vtkInformationVector* );

  // see algorithm for more info
  virtual int FillOutputPortInformation( int port, vtkInformation* info );
  virtual int FillInputPortInformation( int port, vtkInformation* info );

private:
  vtkLabelHierarchyAlgorithm( const vtkLabelHierarchyAlgorithm& ); // Not implemented.
  void operator = ( const vtkLabelHierarchyAlgorithm& );  // Not implemented.
};

#endif