NativePointer.hpp

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/*****************************************************************************
 * Copyright (C) 2011 by Benjamin Hadorn (b_hadorn@bluewin.ch)
 *****************************************************************************
 * Project    : Zeus Base Library
 * Module     : NativePointer
 * Package    : Zeus.ZeusBase.System
 * Author     : Benjamin Hadorn
 * Date       : 27.12.2011
 * System     : Zeus-Framework
 *****************************************************************************
 * Licence:                                                                  *
 *   This library is free software; you can redistribute it and/or modify    *
 *   it under the terms of the GNU Lesser General Public License as          *
 *   published by the Free Software Foundation; either version               *
 *   2.1 of the License, or (at your option) any later version.              *
 *                                                                           *
 *   This library is distributed in the hope that it will be useful,         *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of          *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the            *
 *   GNU Lesser General Public License for more details.                     *
 *                                                                           *
 *   You should have received a copy of the GNU Lesser General Public        *
 *   License along with this library; if not, write to the Free Software     *
 *   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA    *
 *****************************************************************************/

/*****************************************************************************
 * Changes:
 *  27.12.2011 bha: created zeus 2.0
 *****************************************************************************/


#ifndef NativePointerHPP
#define NativePointerHPP


#include <zeusbase/System/Interfaces/INativePointer.hpp>

BEGIN_NAMESPACE_Zeus

/******************************************************************************/
/******************************************************************************/
template <class T> class TNativePointer :  public INativePointer
{
  public:
    /***********************************************************************/
    /***********************************************************************/
    inline TNativePointer()
    {
      m_pPtr = NULL;
    }

    /***********************************************************************/
    /***********************************************************************/
    inline TNativePointer(T* pPointer)
    {
      m_pPtr = pPointer;
    }

    /***********************************************************************/
    /***********************************************************************/
    inline TNativePointer(T& rPointer)
    {
      m_pPtr = &rPointer;
    }

    /***********************************************************************/
    /***********************************************************************/
    inline virtual ~TNativePointer()
    {
      //do not free memory here because memory might be used some where else
    }

    /***********************************************************************/
    /***********************************************************************/
    inline void freeMemory()
    {
      if (m_pPtr != NULL)
      {
        delete m_pPtr;
        m_pPtr = NULL;
      }
    }

    /***********************************************************************/
    /***********************************************************************/
    inline T* getPointer()
    {
      return m_pPtr;
    }

    /***********************************************************************/
    /***********************************************************************/
    inline const T* getConstPointer() const
    {
      return m_pPtr;
    }

    /***********************************************************************/
    /***********************************************************************/
    inline virtual void* MQUALIFIER getIntPtr()
    {
      return (void*)m_pPtr;
    }

    /***********************************************************************/
    /***********************************************************************/
    inline virtual const void* MQUALIFIER getConstIntPtr() const
    {
      return (void*)m_pPtr;
    }

    /***********************************************************************/
    /***********************************************************************/
    inline virtual void MQUALIFIER setIntPtr(void* pValue)
    {
      m_pPtr = reinterpret_cast<T*>(pValue);
    }

    /***********************************************************************/
    /***********************************************************************/
    inline TNativePointer<T>& operator=(const T* pPtr)
    {
      m_pPtr = const_cast<T*>(pPtr);
      return *this;
    }

    /***********************************************************************/
    /***********************************************************************/
    inline TNativePointer<T>& operator=(const T& rPtr)
    {
      m_pPtr = const_cast<T*>(&rPtr);
      return *this;
    }

    /***********************************************************************/
    /***********************************************************************/
    inline T* operator->() { return m_pPtr; }

    /***********************************************************************/
    /***********************************************************************/
    inline const T* operator->() const { return m_pPtr; }

    /***********************************************************************/
    /***********************************************************************/
    inline T& operator*() const { return *m_pPtr; }


    /***********************************************************************/
    /***********************************************************************/
    inline operator T*() const { return m_pPtr; }

  private:
    T* m_pPtr;
};

END_NAMESPACE_Zeus

#endif