itkImportImageContainer.h

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/*=========================================================================
 *
 *  Copyright Insight Software Consortium
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0.txt
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *=========================================================================*/
#ifndef itkImportImageContainer_h
#define itkImportImageContainer_h

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

namespace itk
{
template< typename TElementIdentifier, typename TElement >
class ITK_TEMPLATE_EXPORT ImportImageContainer:public Object
{
public:
  ITK_DISALLOW_COPY_AND_ASSIGN(ImportImageContainer);

  using Self = ImportImageContainer;
  using Superclass = Object;
  using Pointer = SmartPointer< Self >;
  using ConstPointer = SmartPointer< const Self >;

  using ElementIdentifier = TElementIdentifier;
  using Element = TElement;

  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; }

  ElementIdentifier Capacity() const
  { return m_Capacity; }

  ElementIdentifier Size() const
  { return m_Size; }

  void Reserve(ElementIdentifier num, const bool UseDefaultConstructor = false);

  void Squeeze();

  void Initialize();

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

protected:
  ImportImageContainer();
  ~ImportImageContainer() override;

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

  virtual TElement * AllocateElements(ElementIdentifier size, bool UseDefaultConstructor = false) 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:
  TElement *         m_ImportPointer;
  TElementIdentifier m_Size;
  TElementIdentifier m_Capacity;
  bool               m_ContainerManageMemory;
};
} // end namespace itk

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkImportImageContainer.hxx"
#endif

#endif