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itkFEMP.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkFEMP.h,v $
00005   Language:  C++
00006   Date:      $Date: 2002/01/15 19:38:53 $
00007   Version:   $Revision: 1.9 $
00008 
00009   Copyright (c) 2002 Insight Consortium. All rights reserved.
00010   See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
00011 
00012      This software is distributed WITHOUT ANY WARRANTY; without even 
00013      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
00014      PURPOSE.  See the above copyright notices for more information.
00015 
00016 =========================================================================*/
00017 #ifndef __itkFEMP_h
00018 #define __itkFEMP_h
00019 
00020 namespace itk {
00021 namespace fem {
00022 
00023 
00024 
00025 
00045 template<class T>
00046 class FEMP
00047 {
00048 public:
00049 
00055   FEMP() : m_Data(0)
00056   {
00057   }
00058   
00063   FEMP(const FEMP& x)
00064   {      
00065     if (x.m_Data) { m_Data=static_cast<T*>(&*x.m_Data->Clone()); }
00066     else { m_Data=0; }
00067   }
00068 
00075   explicit FEMP(typename T::Pointer x) : m_Data(x)
00076   {
00077   }
00078 
00082   ~FEMP()
00083   {
00084     #ifndef FEM_USE_SMART_POINTERS
00085     delete m_Data;
00086     #endif
00087   }
00088 
00092   const FEMP& operator= (const FEMP &rhs);
00093 
00097   typename T::Pointer operator-> () const { return m_Data; }
00098   
00103   operator T * () const
00104   {
00105     return m_Data;
00106   }
00107   
00112   bool IsNULL() const
00113   {
00114     return (m_Data==0);
00115   }
00116 
00117 private:
00118 
00122   typename T::Pointer m_Data;
00123 
00124 };
00125 
00126 
00127 
00128 
00129 template<class T>
00130 const FEMP<T>& FEMP<T>::operator= (const FEMP &rhs)
00131 {
00132 
00134   if (&rhs!=this) 
00135   {      
00139     #ifndef FEM_USE_SMART_POINTERS
00140     delete m_Data;
00141     #else
00142     m_Data=0;
00143     #endif
00144 
00149     if (rhs.m_Data) { m_Data=static_cast<T*>(&*rhs.m_Data->Clone()); }
00150     else { m_Data=0; }
00151 
00152   }
00153   return *this;
00154 }
00155 
00156 
00157 
00158 
00159 }} // end namespace itk::fem
00160 
00161 #endif // #ifndef __itkFEMP_h

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