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src/qt/include/qdeepcopy.h
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00001 /****************************************************************************
00002 ** $Id: qt/qdeepcopy.h   3.3.8   edited Jan 11 14:38 $
00003 **
00004 ** Definition of QDeepCopy class
00005 **
00006 ** Created : 20020613
00007 **
00008 ** Copyright (C) 1992-2007 Trolltech ASA.  All rights reserved.
00009 **
00010 ** This file is part of the kernel module of the Qt GUI Toolkit.
00011 **
00012 ** This file may be distributed under the terms of the Q Public License
00013 ** as defined by Trolltech ASA of Norway and appearing in the file
00014 ** LICENSE.QPL included in the packaging of this file.
00015 **
00016 ** This file may be distributed and/or modified under the terms of the
00017 ** GNU General Public License version 2 as published by the Free Software
00018 ** Foundation and appearing in the file LICENSE.GPL included in the
00019 ** packaging of this file.
00020 **
00021 ** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
00022 ** licenses may use this file in accordance with the Qt Commercial License
00023 ** Agreement provided with the Software.
00024 **
00025 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
00026 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
00027 **
00028 ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
00029 **   information about Qt Commercial License Agreements.
00030 ** See http://www.trolltech.com/qpl/ for QPL licensing information.
00031 ** See http://www.trolltech.com/gpl/ for GPL licensing information.
00032 **
00033 ** Contact info@trolltech.com if any conditions of this licensing are
00034 ** not clear to you.
00035 **
00036 **********************************************************************/
00037 
00038 #ifndef QDEEPCOPY_H
00039 #define QDEEPCOPY_H
00040 
00041 #ifndef QT_H
00042 #  include "qglobal.h"
00043 #endif // QT_H
00044 
00045 template <class T>
00046 class QDeepCopy
00047 {
00048 public:
00049     inline QDeepCopy()
00050     {
00051     }
00052 
00053     inline QDeepCopy( const T &t )
00054         : deepcopy( t )
00055     {
00056         deepcopy.detach();
00057     }
00058 
00059     inline QDeepCopy<T> &operator=( const T &t )
00060     {
00061         deepcopy = t;
00062         deepcopy.detach();
00063         return *this;
00064     }
00065 
00066     inline operator T ()
00067     {
00068         T tmp = deepcopy;
00069         tmp.detach();
00070         return tmp;
00071     }
00072 
00073 private:
00074     T deepcopy;
00075 };
00076 
00077 #endif // QDEEPCOPY_H
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