/****************************************************************************
** $Id: qbitarray.h,v 2.6.2.2 1998/08/25 09:20:54 hanord Exp $
**
** Definition of QBitArray class
**
** Created : 940118
**
** Copyright (C) 1992-1999 Troll Tech AS. All rights reserved.
**
** This file is part of Qt Free Edition, version 1.45.
**
** 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 QBITARRAY_H
#define QBITARRAY_H
#ifndef QT_H
#include "qstring.h"
#endif // QT_H
/*****************************************************************************
QBitVal class; a context class for QBitArray::operator[]
*****************************************************************************/
class QBitArray;
class Q_EXPORT QBitVal
{
private:
QBitArray *array;
uint index;
public:
QBitVal( QBitArray *a, uint i ) : array(a), index(i) {}
operator int();
QBitVal &operator=( const QBitVal &v );
QBitVal &operator=( int v );
};
/*****************************************************************************
QBitArray class
*****************************************************************************/
class Q_EXPORT QBitArray : public QByteArray
{
public:
QBitArray();
QBitArray( uint size );
QBitArray( const QBitArray &a ) : QByteArray( a ) {}
QBitArray &operator=( const QBitArray & );
uint size() const;
bool resize( uint size );
bool fill( bool v, int size = -1 );
void detach();
QBitArray copy() const;
bool testBit( uint index ) const;
void setBit( uint index );
void setBit( uint index, bool value );
void clearBit( uint index );
bool toggleBit( uint index );
bool at( uint index ) const;
QBitVal operator[]( int index );
QBitArray &operator&=( const QBitArray & );
QBitArray &operator|=( const QBitArray & );
QBitArray &operator^=( const QBitArray & );
QBitArray operator~() const;
protected:
struct bitarr_data : public QGArray::array_data {
uint nbits;
};
array_data *newData() { return new bitarr_data; }
void deleteData( array_data *d ) { delete (bitarr_data*)d; }
private:
void pad0();
};
inline QBitArray &QBitArray::operator=( const QBitArray &a )
{ return (QBitArray&)assign( a ); }
inline uint QBitArray::size() const
{ return ((bitarr_data*)sharedBlock())->nbits; }
inline void QBitArray::setBit( uint index, bool value )
{ if ( value ) setBit(index); else clearBit(index); }
inline bool QBitArray::at( uint index ) const
{ return testBit(index); }
inline QBitVal QBitArray::operator[]( int index )
{ return QBitVal( (QBitArray*)this, index ); }
/*****************************************************************************
Misc. QBitArray operator functions
*****************************************************************************/
Q_EXPORT QBitArray operator&( const QBitArray &, const QBitArray & );
Q_EXPORT QBitArray operator|( const QBitArray &, const QBitArray & );
Q_EXPORT QBitArray operator^( const QBitArray &, const QBitArray & );
inline QBitVal::operator int()
{
return array->testBit( index );
}
inline QBitVal &QBitVal::operator=( const QBitVal &v )
{
array->setBit( index, v.array->testBit(v.index) );
return *this;
}
inline QBitVal &QBitVal::operator=( int v ) // ### Qt 2.0: change to bool
{
array->setBit( index, v );
return *this;
}
/*****************************************************************************
QBitArray stream functions
*****************************************************************************/
Q_EXPORT QDataStream &operator<<( QDataStream &, const QBitArray & );
Q_EXPORT QDataStream &operator>>( QDataStream &, QBitArray & );
#endif // QBITARRAY_H
| Copyright © 1999 Troll Tech | Trademarks | Qt version 1.45
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