/****************************************************************************

**

** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

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

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

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** $QT_BEGIN_LICENSE:LGPL$

** No Commercial Usage

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

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

** contained in the Technology Preview License Agreement accompanying

** this package.

**

** GNU Lesser General Public License Usage

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

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

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

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

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

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

**

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

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

**

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

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****************************************************************************/

#include <QApplication>

#include <QBuffer>

#include <QPalette>

static void main_snippet()

{

//! [0]

    QBuffer buffer;

    char ch;

    buffer.open(QBuffer::ReadWrite);

    buffer.write("Qt rocks!");

    buffer.seek(0);

    buffer.getChar(&ch);  // ch == 'Q'

    buffer.getChar(&ch);  // ch == 't'

    buffer.getChar(&ch);  // ch == ' '

    buffer.getChar(&ch);  // ch == 'r'

//! [0]

}

static void write_datastream_snippets()

{

//! [1]

    QByteArray byteArray;

    QBuffer buffer(&byteArray);

    buffer.open(QIODevice::WriteOnly);

    QDataStream out(&buffer);

    out << QApplication::palette();

//! [1]

}

static void read_datastream_snippets()

{

    QByteArray byteArray;

//! [2]

    QPalette palette;

    QBuffer buffer(&byteArray);

    buffer.open(QIODevice::ReadOnly);

    QDataStream in(&buffer);

    in >> palette;

//! [2]

}

static void bytearray_ptr_ctor_snippet()

{

//! [3]

    QByteArray byteArray("abc");

    QBuffer buffer(&byteArray);

    buffer.open(QIODevice::WriteOnly);

    buffer.seek(3);

    buffer.write("def", 3);

    buffer.close();

    // byteArray == "abcdef"

//! [3]

}

static void setBuffer_snippet()

{

//! [4]

    QByteArray byteArray("abc");

    QBuffer buffer;

    buffer.setBuffer(&byteArray);

    buffer.open(QIODevice::WriteOnly);

    buffer.seek(3);

    buffer.write("def", 3);

    buffer.close();

    // byteArray == "abcdef"

//! [4]

}

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

{

    QApplication app(argc, argv);

    main_snippet();

    bytearray_ptr_ctor_snippet();

    write_datastream_snippets();

    read_datastream_snippets();

    setBuffer_snippet();

    return 0;

}