1 /****************************************************************************

     2 **

     3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

     6 **

     7 ** This file is part of the documentation of the Qt Toolkit.

     8 **

     9 ** $QT_BEGIN_LICENSE:LGPL$

    10 ** No Commercial Usage

    11 ** This file contains pre-release code and may not be distributed.

    12 ** You may use this file in accordance with the terms and conditions

    13 ** contained in the Technology Preview License Agreement accompanying

    14 ** this package.

    15 **

    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

    19 ** Foundation and appearing in the file LICENSE.LGPL included in the

    20 ** packaging of this file.  Please review the following information to

    21 ** ensure the GNU Lesser General Public License version 2.1 requirements

    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

    23 **

    24 ** In addition, as a special exception, Nokia gives you certain additional

    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception

    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

    27 **

    28 ** If you have questions regarding the use of this file, please contact

    29 ** Nokia at qt-info@nokia.com.

    30 **

    31 **

    32 **

    33 **

    34 **

    35 **

    36 **

    37 **

    38 ** $QT_END_LICENSE$

    39 **

    40 ****************************************************************************/

    41 

    42 #include <QtGui>

    43 #include <QByteArray>

    44 #include <QDataStream>

    45 

    46 //! [0]

    47 struct Movie

    48 {

    49     int id;

    50     QString title;

    51     QDate releaseDate;

    52 };

    53 //! [0]

    54 

    55 //! [1]

    56 QDataStream &operator<<(QDataStream &out, const Movie &movie)

    57 {

    58     out << (quint32)movie.id << movie.title

    59         << movie.releaseDate;

    60     return out;

    61 }

    62 //! [1]

    63 

    64 //! [2]

    65 QDataStream &operator>>(QDataStream &in, Movie &movie)

    66 {

    67     quint32 id;

    68     QDate date;

    69 

    70     in >> id >> movie.title >> date;

    71     movie.id = (int)id;

    72     movie.releaseDate = date;

    73     return in;

    74 }

    75 //! [2]

    76 

    77 int main(int argc, char *argv[])

    78 {

    79     QApplication app(argc, argv);

    80 

    81     Movie m;

    82     m.id = 0001;

    83     m.title = "Happy Meal";

    84     m.releaseDate = QDate(1995, 5, 17);

    85 

    86     QByteArray byteArray;

    87     QDataStream stream(&byteArray, QIODevice::WriteOnly);

    88     stream << m;

    89     

    90     // display

    91     qDebug() << m.id << m.releaseDate << m.title;

    92 

    93     Movie m2;

    94     

    95     int id2;

    96     QString title2;

    97     QDate date2;

    98 

    99     QDataStream stream2(byteArray);

   100     stream2 >> id2 >> title2 >> date2;

   101 

   102     m2.id = id2;

   103     m2.title = title2;

   104     m2.releaseDate = date2;

   105 

   106     qDebug() << id2 << " " << date2 << " " << title2;

   107 

   108     return 0;

   109 }