itkImportImageFilter.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkImportImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2002/09/30 15:24:40 $
  Version:   $Revision: 1.23 $

  Copyright (c) 2002 Insight Consortium. All rights reserved.
  See ITKCopyright.txt or http://www.itk.org/HTML/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 notices for more information.

=========================================================================*/
#ifndef __itkImportImageFilter_h
#define __itkImportImageFilter_h

#include "itkImageSource.h"
#include "itkImage.h"

namespace itk
{

template <typename TPixel, unsigned int VImageDimension=2>
class ITK_EXPORT ImportImageFilter: 
    public ImageSource< Image<TPixel,VImageDimension> >
{
public:
  typedef Image<TPixel,VImageDimension> OutputImageType;
  typedef typename OutputImageType::Pointer OutputImagePointer;
  
  typedef ImportImageFilter   Self;
  typedef ImageSource<OutputImageType>  Superclass;
  typedef SmartPointer<Self>  Pointer;
  typedef SmartPointer<const Self>  ConstPointer;

  itkNewMacro(Self);

  itkTypeMacro(ImportImageFilter,ImageSource);

  typedef Index<VImageDimension>  IndexType;

  typedef Size<VImageDimension>  SizeType;

  typedef ImageRegion<VImageDimension>  RegionType;

  typedef TPixel OutputImagePixelType;
  
  TPixel *GetImportPointer();

  void SetImportPointer(TPixel *ptr, unsigned long num,
                        bool LetSourceManageMemory);

  void SetRegion(const RegionType &region)
    { if (m_Region != region) {m_Region = region; this->Modified();} };
  
  const RegionType& GetRegion() const
    { return m_Region;};
  
  itkSetVectorMacro(Spacing, const double, VImageDimension);
  itkSetVectorMacro(Spacing, const float, VImageDimension);

  itkGetVectorMacro(Spacing, const double, VImageDimension);
  
  itkSetVectorMacro(Origin, const double, VImageDimension);
  itkSetVectorMacro(Origin, const float, VImageDimension);

  itkGetVectorMacro(Origin, const double, VImageDimension);

protected:
 ImportImageFilter();
  ~ImportImageFilter();
  void PrintSelf(std::ostream& os, Indent indent) const;

  virtual void GenerateData();

  virtual void GenerateOutputInformation();

  virtual void EnlargeOutputRequestedRegion(DataObject *output);

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

  RegionType  m_Region;
  double   m_Spacing[VImageDimension];
  double   m_Origin[VImageDimension];

  TPixel*  m_ImportPointer;
  bool     m_SourceManageMemory;
  unsigned long m_Size;
};

} // end namespace itk

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

#endif

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