/****************************************************************************
**
** Definition of QBuffer class
**
** Created : 930812
**
** Copyright (C) 1992-2008 Trolltech ASA.  All rights reserved.
**
** This file is part of the tools module of the Qt GUI Toolkit.
**
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** Public License versions 2.0 or 3.0 as published by the Free
** Software Foundation and appearing in the files LICENSE.GPL2
** and LICENSE.GPL3 included in the packaging of this file.
** Alternatively you may (at your option) use any later version
** of the GNU General Public License if such license has been
** publicly approved by Trolltech ASA (or its successors, if any)
** and the KDE Free Qt Foundation.
**
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** Public Licensing requirements will be met:
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**
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** defined by Trolltech ASA and appearing in the file LICENSE.QPL
** included in the packaging of this file.  Licensees holding valid Qt
** Commercial licenses may use this file in accordance with the Qt
** Commercial License Agreement provided with the Software.
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**********************************************************************/

#ifndef QBUFFER_H
#define QBUFFER_H

#ifndef QT_H
#include "qiodevice.h"
#include "qstring.h"
#endif // QT_H


class Q_EXPORT QBuffer : public QIODevice
{
public:
    QBuffer();
    QBuffer( QByteArray );
   ~QBuffer();

    QByteArray buffer() const;
    bool  setBuffer( QByteArray );

    bool  open( int );
    void  close();
    void  flush();

    Offset size() const;
    Offset at() const;
    bool  at( Offset );

    Q_LONG	  readBlock( char *p, Q_ULONG );
    Q_LONG	  writeBlock( const char *p, Q_ULONG );
    Q_LONG	  writeBlock( const QByteArray& data )
	      { return QIODevice::writeBlock(data); }
    Q_LONG	  readLine( char *p, Q_ULONG );

    int	  getch();
    int	  putch( int );
    int	  ungetch( int );

protected:
    QByteArray a;

private:
    uint  a_len;
    uint  a_inc;

private:	// Disabled copy constructor and operator=
#if defined(Q_DISABLE_COPY)
    QBuffer( const QBuffer & );
    QBuffer &operator=( const QBuffer & );
#endif
};


inline QByteArray QBuffer::buffer() const
{ return a; }

inline QIODevice::Offset QBuffer::size() const
{ return (Offset)a.size(); }

inline QIODevice::Offset QBuffer::at() const
{ return ioIndex; }


#endif // QBUFFER_H