src/qt/src/tools/qdeepcopy.h

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/****************************************************************************
** $Id: qt/qdeepcopy.h   3.3.8   edited Jan 11 14:38 $
**
** Definition of QDeepCopy class
**
** Created : 20020613
**
** Copyright (C) 1992-2007 Trolltech ASA.  All rights reserved.
**
** This file is part of the kernel module of the Qt GUI Toolkit.
**
** This file may be distributed under the terms of the Q Public License
** as defined by Trolltech ASA of Norway and appearing in the file
** LICENSE.QPL included in the packaging of this file.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
** licenses may use this file in accordance with the Qt Commercial License
** Agreement provided with the Software.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
**   information about Qt Commercial License Agreements.
** See http://www.trolltech.com/qpl/ for QPL licensing information.
** See http://www.trolltech.com/gpl/ for GPL licensing information.
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**********************************************************************/

#ifndef QDEEPCOPY_H
#define QDEEPCOPY_H

#ifndef QT_H
#  include "qglobal.h"
#endif // QT_H

template <class T>
class QDeepCopy
{
public:
    inline QDeepCopy()
    {
    }

    inline QDeepCopy( const T &t )
        : deepcopy( t )
    {
        deepcopy.detach();
    }

    inline QDeepCopy<T> &operator=( const T &t )
    {
        deepcopy = t;
        deepcopy.detach();
        return *this;
    }

    inline operator T ()
    {
        T tmp = deepcopy;
        tmp.detach();
        return tmp;
    }

private:
    T deepcopy;
};

#endif // QDEEPCOPY_H