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/****************************************************************************
** $Id$
**
** Definition of QGDict and QGDictIterator classes
**
** Created : 920529
**
** Copyright (C) 1992-2000 Trolltech AS. All rights reserved.
**
** This file is part of the tools module of the Qt GUI Toolkit.
**
** This file may be distributed under the terms of the Q Public License
** as defined by Trolltech AS of Norway and appearing in the file
** LICENSE.QPL included in the packaging of this file.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
** licenses may use this file in accordance with the Qt Commercial License
** Agreement provided with the Software.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
** information about Qt Commercial License Agreements.
** See http://www.trolltech.com/qpl/ for QPL licensing information.
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/
#ifndef QGDICT_H
#define QGDICT_H
#ifndef QT_H
#include "qptrcollection.h"
#include "qstring.h"
#endif // QT_H
class QGDictIterator;
class QGDItList;
class QBaseBucket // internal dict node
{
public:
QPtrCollection::Item getData() { return data; }
QPtrCollection::Item setData( QPtrCollection::Item d ) { return data = d; }
QBaseBucket *getNext() { return next; }
void setNext( QBaseBucket *n) { next = n; }
protected:
QBaseBucket( QPtrCollection::Item d, QBaseBucket *n ) : data(d), next(n) {}
QPtrCollection::Item data;
QBaseBucket *next;
};
class QStringBucket : public QBaseBucket
{
public:
QStringBucket( const QString &k, QPtrCollection::Item d, QBaseBucket *n )
: QBaseBucket(d,n), key(k) {}
const QString &getKey() const { return key; }
private:
QString key;
};
class QAsciiBucket : public QBaseBucket
{
public:
QAsciiBucket( const char *k, QPtrCollection::Item d, QBaseBucket *n )
: QBaseBucket(d,n), key(k) {}
const char *getKey() const { return key; }
private:
const char *key;
};
class QIntBucket : public QBaseBucket
{
public:
QIntBucket( long k, QPtrCollection::Item d, QBaseBucket *n )
: QBaseBucket(d,n), key(k) {}
long getKey() const { return key; }
private:
long key;
};
class QPtrBucket : public QBaseBucket
{
public:
QPtrBucket( void *k, QPtrCollection::Item d, QBaseBucket *n )
: QBaseBucket(d,n), key(k) {}
void *getKey() const { return key; }
private:
void *key;
};
class Q_EXPORT QGDict : public QPtrCollection // generic dictionary class
{
public:
uint count() const { return numItems; }
uint size() const { return vlen; }
QPtrCollection::Item look_string( const QString& key, QPtrCollection::Item,
int );
QPtrCollection::Item look_ascii( const char *key, QPtrCollection::Item, int );
QPtrCollection::Item look_int( long key, QPtrCollection::Item, int );
QPtrCollection::Item look_ptr( void *key, QPtrCollection::Item, int );
#ifndef QT_NO_DATASTREAM
QDataStream &read( QDataStream & );
QDataStream &write( QDataStream & ) const;
#endif
protected:
enum KeyType { StringKey, AsciiKey, IntKey, PtrKey };
QGDict( uint len, KeyType kt, bool cs, bool ck );
QGDict( const QGDict & );
~QGDict();
QGDict &operator=( const QGDict & );
bool remove_string( const QString &key, QPtrCollection::Item item=0 );
bool remove_ascii( const char *key, QPtrCollection::Item item=0 );
bool remove_int( long key, QPtrCollection::Item item=0 );
bool remove_ptr( void *key, QPtrCollection::Item item=0 );
QPtrCollection::Item take_string( const QString &key );
QPtrCollection::Item take_ascii( const char *key );
QPtrCollection::Item take_int( long key );
QPtrCollection::Item take_ptr( void *key );
void clear();
void resize( uint );
int hashKeyString( const QString & );
int hashKeyAscii( const char * );
void statistics() const;
#ifndef QT_NO_DATASTREAM
virtual QDataStream &read( QDataStream &, QPtrCollection::Item & );
virtual QDataStream &write( QDataStream &, QPtrCollection::Item ) const;
#endif
private:
QBaseBucket **vec;
uint vlen;
uint numItems;
uint keytype : 2;
uint cases : 1;
uint copyk : 1;
QGDItList *iterators;
void unlink_common( int, QBaseBucket *, QBaseBucket * );
QStringBucket *unlink_string( const QString &,
QPtrCollection::Item item = 0 );
QAsciiBucket *unlink_ascii( const char *, QPtrCollection::Item item = 0 );
QIntBucket *unlink_int( long, QPtrCollection::Item item = 0 );
QPtrBucket *unlink_ptr( void *, QPtrCollection::Item item = 0 );
void init( uint, KeyType, bool, bool );
friend class QGDictIterator;
};
class Q_EXPORT QGDictIterator // generic dictionary iterator
{
friend class QGDict;
public:
QGDictIterator( const QGDict & );
QGDictIterator( const QGDictIterator & );
QGDictIterator &operator=( const QGDictIterator & );
~QGDictIterator();
QPtrCollection::Item toFirst();
QPtrCollection::Item get() const;
QString getKeyString() const;
const char *getKeyAscii() const;
long getKeyInt() const;
void *getKeyPtr() const;
QPtrCollection::Item operator()();
QPtrCollection::Item operator++();
QPtrCollection::Item operator+=(uint);
protected:
QGDict *dict;
private:
QBaseBucket *curNode;
uint curIndex;
};
inline QPtrCollection::Item QGDictIterator::get() const
{
return curNode ? curNode->getData() : 0;
}
inline QString QGDictIterator::getKeyString() const
{
return curNode ? ((QStringBucket*)curNode)->getKey() : QString::null;
}
inline const char *QGDictIterator::getKeyAscii() const
{
return curNode ? ((QAsciiBucket*)curNode)->getKey() : 0;
}
inline long QGDictIterator::getKeyInt() const
{
return curNode ? ((QIntBucket*)curNode)->getKey() : 0;
}
inline void *QGDictIterator::getKeyPtr() const
{
return curNode ? ((QPtrBucket*)curNode)->getKey() : 0;
}
#endif // QGDICT_H
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