itkImportImageContainer.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkImportImageContainer.h,v $
  Language:  C++
  Date:      $Date: 2009-04-25 12:24:09 $
  Version:   $Revision: 1.24 $

  Copyright (c) Insight Software 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 __itkImportImageContainer_h
#define __itkImportImageContainer_h

#include "itkObject.h"
#include "itkObjectFactory.h"
#include <utility>

namespace itk
{

template <typename TElementIdentifier, typename TElement>
class ImportImageContainer:  public Object
{
public:
  typedef ImportImageContainer      Self;
  typedef Object                    Superclass;
  typedef SmartPointer<Self>        Pointer;
  typedef SmartPointer<const Self>  ConstPointer;

  typedef TElementIdentifier  ElementIdentifier;
  typedef TElement            Element;

  itkNewMacro(Self);

  itkTypeMacro(ImportImageContainer, Object);

  TElement *GetImportPointer() {return m_ImportPointer;};

  void SetImportPointer(TElement *ptr, TElementIdentifier num,
                        bool LetContainerManageMemory = false);

  TElement & operator[](const ElementIdentifier id)
    { return m_ImportPointer[id]; }

  const TElement & operator[](const ElementIdentifier id) const
    { return m_ImportPointer[id]; }

  TElement *GetBufferPointer()
    { return m_ImportPointer; }

  unsigned long Capacity(void) const
    { return (unsigned long) m_Capacity; }

  unsigned long Size(void) const
    { return (unsigned long) m_Size; }

  void Reserve(ElementIdentifier num);

  void Squeeze(void);

  void Initialize(void);


  itkSetMacro(ContainerManageMemory,bool);
  itkGetConstMacro(ContainerManageMemory,bool);
  itkBooleanMacro(ContainerManageMemory);


protected:
  ImportImageContainer();
  virtual ~ImportImageContainer();

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

  virtual TElement* AllocateElements(ElementIdentifier size) const;
  virtual void DeallocateManagedMemory();

  /* Set the m_Size member that represents the number of elements
   * currently stored in the container. Use this function with great
   * care since it only changes the m_Size member and not the actual size
   * of the import pointer m_ImportPointer. It should typically
   * be used only to override AllocateElements and
   * DeallocateManagedMemory. */
  itkSetMacro(Size,TElementIdentifier);
   
  /* Set the m_Capacity member that represents the capacity of
   * the current container. Use this function with great care
   * since it only changes the m_Capacity member and not the actual
   * capacity of the import pointer m_ImportPointer. It should typically
   * be used only to override AllocateElements and
   * DeallocateManagedMemory. */
  itkSetMacro(Capacity,TElementIdentifier);

  
  /* Set the m_ImportPointer member. Use this function with great care
   * since it only changes the m_ImportPointer member but not the m_Size
   * and m_Capacity members. It should typically be used only to override
   * AllocateElements and DeallocateManagedMemory. */
  void SetImportPointer(TElement *ptr){m_ImportPointer=ptr;}

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

  TElement            *m_ImportPointer;
  TElementIdentifier   m_Size;
  TElementIdentifier   m_Capacity;
  bool                 m_ContainerManageMemory;
};

} // end namespace itk

// Define instantiation macro for this template.
#define ITK_TEMPLATE_ImportImageContainer(_, EXPORT, x, y) namespace itk { \
  _(2(class EXPORT ImportImageContainer< ITK_TEMPLATE_2 x >)) \
  namespace Templates { typedef ImportImageContainer< ITK_TEMPLATE_2 x > ImportImageContainer##y; } \
  }

#if ITK_TEMPLATE_EXPLICIT
# include "Templates/itkImportImageContainer+-.h"
#endif

#if ITK_TEMPLATE_TXX
# include "itkImportImageContainer.txx"
#endif

#endif

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