itkInPlaceLabelMapFilter.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkInPlaceLabelMapFilter.h,v $
  Language:  C++
  Date:      $Date: 2009-07-10 14:15:40 $
  Version:   $Revision: 1.4 $

  Copyright (c) Insight Software Consortium. All rights reserved.
  See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.

  Portions of this code are covered under the VTK copyright.
  See VTKCopyright.txt or http://www.kitware.com/VTKCopyright.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 notices for more information.

=========================================================================*/
#ifndef __itkInPlaceLabelMapFilter_h
#define __itkInPlaceLabelMapFilter_h

#include "itkLabelMapFilter.h"

namespace itk
{

template <class TInputImage>
class ITK_EXPORT InPlaceLabelMapFilter : public LabelMapFilter<TInputImage, TInputImage>
{
public:
  typedef InPlaceLabelMapFilter                     Self;
  typedef LabelMapFilter<TInputImage, TInputImage>  Superclass;
  typedef SmartPointer<Self>                        Pointer;
  typedef SmartPointer<const Self>                  ConstPointer;
  
  
  itkTypeMacro(InPlaceLabelMapFilter, LabelMapFilter);

  itkNewMacro(Self);

  typedef typename Superclass::OutputImageType       OutputImageType;
  typedef typename Superclass::OutputImagePointer    OutputImagePointer;
  typedef typename Superclass::OutputImageRegionType OutputImageRegionType;
  typedef typename Superclass::OutputImagePixelType  OutputImagePixelType;

  typedef TInputImage                              InputImageType;
  typedef typename InputImageType::Pointer         InputImagePointer;
  typedef typename InputImageType::ConstPointer    InputImageConstPointer;
  typedef typename InputImageType::RegionType      InputImageRegionType; 
  typedef typename InputImageType::PixelType       InputImagePixelType;
  typedef typename InputImageType::LabelObjectType LabelObjectType;

  typedef typename InputImageType::PixelType       PixelType;
  typedef typename InputImageType::IndexType       IndexType;
  typedef typename InputImageType::RegionType      RegionType;

  typedef TInputImage TOutputImage;
  
  itkStaticConstMacro(InputImageDimension, unsigned int, TInputImage::ImageDimension);
  itkStaticConstMacro(OutputImageDimension, unsigned int, TOutputImage::ImageDimension);

  itkSetMacro(InPlace, bool);
  itkGetMacro(InPlace, bool);
  itkBooleanMacro(InPlace);

  bool CanRunInPlace() const
    {
    return (typeid(TInputImage) == typeid(TOutputImage));
    };

protected:
  InPlaceLabelMapFilter();
  ~InPlaceLabelMapFilter();

  virtual void PrintSelf(std::ostream& os, Indent indent) const;

  virtual void AllocateOutputs();

  virtual void ReleaseInputs(); 
  

  virtual InputImageType * GetLabelMap()
    {
    return this->GetOutput();
    }

  typedef typename Superclass::LabelObjectContainerType          LabelObjectContainerType;
  typedef typename Superclass::LabelObjectContainerConstIterator LabelObjectContainerConstIterator;

private:
  InPlaceLabelMapFilter(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented

  bool m_InPlace;

};

} // end namespace itk

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkInPlaceLabelMapFilter.txx"
#endif

#endif