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     2 **

     3 ** Copyright (C) 2009 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 QtCore module of the Qt Toolkit.

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     9 ** $QT_BEGIN_LICENSE:LGPL$

    10 ** No Commercial Usage

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    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.

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    38 ** $QT_END_LICENSE$

    39 **

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

    41 

    42 #ifndef QBUFFER_H

    43 #define QBUFFER_H

    44 

    45 #include <QtCore/qiodevice.h>

    46 #include <QtCore/qbytearray.h>

    47 

    48 QT_BEGIN_HEADER

    49 

    50 QT_BEGIN_NAMESPACE

    51 

    52 QT_MODULE(Core)

    53 

    54 class QObject;

    55 class QBufferPrivate;

    56 

    57 class Q_CORE_EXPORT QBuffer : public QIODevice

    58 {

    59 #ifndef QT_NO_QOBJECT

    60     Q_OBJECT

    61 #endif

    62 

    63 public:

    64 #ifndef QT_NO_QOBJECT

    65      explicit QBuffer(QObject *parent = 0);

    66      QBuffer(QByteArray *buf, QObject *parent = 0);

    67 #else

    68      QBuffer();

    69      explicit QBuffer(QByteArray *buf);

    70 #endif

    71     ~QBuffer();

    72 

    73     QByteArray &buffer();

    74     const QByteArray &buffer() const;

    75     void setBuffer(QByteArray *a);

    76 

    77     void setData(const QByteArray &data);

    78     inline void setData(const char *data, int len);

    79     const QByteArray &data() const;

    80 

    81     bool open(OpenMode openMode);

    82 

    83     void close();

    84     qint64 size() const;

    85     qint64 pos() const;

    86     bool seek(qint64 off);

    87     bool atEnd() const;

    88     bool canReadLine() const;

    89 

    90 protected:

    91 #ifndef QT_NO_QOBJECT

    92     void connectNotify(const char*);

    93     void disconnectNotify(const char*);

    94 #endif

    95     qint64 readData(char *data, qint64 maxlen);

    96     qint64 writeData(const char *data, qint64 len);

    97 

    98 private:

    99     Q_DECLARE_PRIVATE(QBuffer)

   100     Q_DISABLE_COPY(QBuffer)

   101 

   102     Q_PRIVATE_SLOT(d_func(), void _q_emitSignals())

   103 };

   104 

   105 inline void QBuffer::setData(const char *adata, int alen)

   106 { setData(QByteArray(adata, alen)); }

   107 

   108 QT_END_NAMESPACE

   109 

   110 QT_END_HEADER

   111 

   112 #endif // QBUFFER_H