/****************************************************************************
** $Id: qdatastream.h,v 2.7.2.2 1998/08/21 19:13:24 hanord Exp $
**
** Definition of QDataStream class
**
** Created : 930831
**
** Copyright (C) 1992-1998 Troll Tech AS.  All rights reserved.
**
** This file is part of Qt Free Edition, version 1.42.
**
** See the file LICENSE included in the distribution for the usage
** and distribution terms, or http://www.troll.no/free-license.html.
**
** IMPORTANT NOTE: You may NOT copy this file or any part of it into
** your own programs or libraries.
**
** Please see http://www.troll.no/pricing.html for information about 
** Qt Professional Edition, which is this same library but with a
** license which allows creation of commercial/proprietary software.
**
*****************************************************************************/

#ifndef QDATASTREAM_H
#define QDATASTREAM_H

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


class Q_EXPORT QDataStream				// data stream class
{
public:
    QDataStream();
    QDataStream( QIODevice * );
    QDataStream( QByteArray, int mode );
    virtual ~QDataStream();

    QIODevice	*device() const;
    void	 setDevice( QIODevice * );
    void	 unsetDevice();

    bool	 eof() const;

    enum ByteOrder { BigEndian, LittleEndian };
    int		 byteOrder()	const;
    void	 setByteOrder( int );

    bool	 isPrintableData() const;
    void	 setPrintableData( bool );

    QDataStream &operator>>( Q_INT8 &i );
    QDataStream &operator>>( Q_UINT8 &i );
    QDataStream &operator>>( Q_INT16 &i );
    QDataStream &operator>>( Q_UINT16 &i );
    QDataStream &operator>>( Q_INT32 &i );
    QDataStream &operator>>( Q_UINT32 &i );
    QDataStream &operator>>( float &f );
    QDataStream &operator>>( double &f );
    QDataStream &operator>>( char *&str );

    QDataStream &operator<<( Q_INT8 i );
    QDataStream &operator<<( Q_UINT8 i );
    QDataStream &operator<<( Q_INT16 i );
    QDataStream &operator<<( Q_UINT16 i );
    QDataStream &operator<<( Q_INT32 i );
    QDataStream &operator<<( Q_UINT32 i );
    QDataStream &operator<<( float f );
    QDataStream &operator<<( double f );
    QDataStream &operator<<( const char *str );

    QDataStream &readBytes( char *&, uint &len );
    QDataStream &readRawBytes( char *, uint len );

    QDataStream &writeBytes( const char *, uint len );
    QDataStream &writeRawBytes( const char *, uint len );

private:
    QIODevice	*dev;
    bool	 owndev;
    int		 byteorder;
    bool	 printable;
    bool	 noswap;

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


/*****************************************************************************
  QDataStream inline functions
 *****************************************************************************/

inline QIODevice *QDataStream::device() const
{ return dev; }

inline bool QDataStream::eof() const
{ return dev ? dev->atEnd() : TRUE; }

inline int QDataStream::byteOrder() const
{ return byteorder; }

inline bool QDataStream::isPrintableData() const
{ return printable; }

inline void QDataStream::setPrintableData( bool p )
{ printable = p; }

inline QDataStream &QDataStream::operator>>( Q_UINT8 &i )
{ return *this >> (Q_INT8&)i; }

inline QDataStream &QDataStream::operator>>( Q_UINT16 &i )
{ return *this >> (Q_INT16&)i; }

inline QDataStream &QDataStream::operator>>( Q_UINT32 &i )
{ return *this >> (Q_INT32&)i; }

inline QDataStream &QDataStream::operator<<( Q_UINT8 i )
{ return *this << (Q_INT8)i; }

inline QDataStream &QDataStream::operator<<( Q_UINT16 i )
{ return *this << (Q_INT16)i; }

inline QDataStream &QDataStream::operator<<( Q_UINT32 i )
{ return *this << (Q_INT32)i; }


#endif // QDATASTREAM_H
