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Qt Toolkit - qgdict.h include file
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<h1 align=center>qgdict.h</h1><br clear="all">
This is the verbatim text of the qgdict.h include file.  It is
provided only for illustration; the copyright
remains with Trolltech.
<hr>
<pre>
/****************************************************************************
** &#36;Id&#58; qt/src/tools/qgdict.h   2.3.2   edited 2001-01-26 $
**
** 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 "qcollection.h"
#include "qstring.h"
#endif // QT_H

class <a href="qgdictiterator.html">QGDictIterator</a>;
class QGDItList;


class QBaseBucket                               // internal dict node
{
public:
    QCollection::Item    getData()                      { return data; }
    QCollection::Item    setData( QCollection::Item d ) { return data = d; }
    QBaseBucket         *getNext()                      { return next; }
    void                 setNext( QBaseBucket *n)       { next = n; }
protected:
    QBaseBucket( QCollection::Item d, QBaseBucket *n ) : data(d), next(n) {}
    QCollection::Item    data;
    QBaseBucket         *next;
};

class QStringBucket : public QBaseBucket
{
public:
    QStringBucket( const QString &amp;k, QCollection::Item d, QBaseBucket *n )
        : QBaseBucket(d,n), key(k)              {}
    const QString  &amp;getKey() const              { return key; }
private:
    QString         key;
};

class QAsciiBucket : public QBaseBucket
{
public:
    QAsciiBucket( const char *k, QCollection::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, QCollection::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, QCollection::Item d, QBaseBucket *n )
        : QBaseBucket(d,n), key(k) {}
    void *getKey() const { return key; }
private:
    void *key;
};


class Q_EXPORT <a href="qgdict.html">QGDict</a> : public <a href="qcollection.html">QCollection</a>      // generic dictionary class
{
public:
    uint        count() const   { return numItems; }
    uint        size()  const   { return vlen; }
    QCollection::Item look_string( const QString&amp; key, QCollection::Item,
                                   int );
    QCollection::Item look_ascii( const char *key, QCollection::Item, int );
    QCollection::Item look_int( long key, QCollection::Item, int );
    QCollection::Item look_ptr( void *key, QCollection::Item, int );
#ifndef QT_NO_DATASTREAM
    QDataStream &amp;read( QDataStream &amp; );
    QDataStream &amp;write( QDataStream &amp; ) const;
#endif
protected:
    enum KeyType { StringKey, AsciiKey, IntKey, PtrKey };

    QGDict( uint len, KeyType kt, bool cs, bool ck );
    QGDict( const QGDict &amp; );
   ~QGDict();

    QGDict     &amp;operator=( const QGDict &amp; );

    bool        remove_string( const QString &amp;key, QCollection::Item item=0 );
    bool        remove_ascii( const char *key, QCollection::Item item=0 );
    bool        remove_int( long key, QCollection::Item item=0 );
    bool        remove_ptr( void *key, QCollection::Item item=0 );
    QCollection::Item take_string( const QString &amp;key );
    QCollection::Item take_ascii( const char *key );
    QCollection::Item take_int( long key );
    QCollection::Item take_ptr( void *key );

    void        clear();
    void        resize( uint );

    int         hashKeyString( const QString &amp; );
    int         hashKeyAscii( const char * );

    void        statistics() const;

#ifndef QT_NO_DATASTREAM
    virtual QDataStream &amp;read( QDataStream &amp;, QCollection::Item &amp; );
    virtual QDataStream &amp;write( QDataStream &amp;, QCollection::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 &amp;,
                                  QCollection::Item item = 0 );
    QAsciiBucket  *unlink_ascii( const char *, QCollection::Item item = 0 );
    QIntBucket    *unlink_int( long, QCollection::Item item = 0 );
    QPtrBucket    *unlink_ptr( void *, QCollection::Item item = 0 );
    void        init( uint, KeyType, bool, bool );
    friend class QGDictIterator;
};


class Q_EXPORT <a href="qgdictiterator.html">QGDictIterator</a>                   // generic dictionary iterator
{
friend class QGDict;
public:
    QGDictIterator( const QGDict &amp; );
    QGDictIterator( const QGDictIterator &amp; );
    QGDictIterator &amp;operator=( const QGDictIterator &amp; );
   ~QGDictIterator();

    QCollection::Item toFirst();

    QCollection::Item get()          const;
    QString           getKeyString() const;
    const char       *getKeyAscii()  const;
    long              getKeyInt()    const;
    void             *getKeyPtr()    const;

    QCollection::Item operator()();
    QCollection::Item operator++();
    QCollection::Item operator+=(uint);

protected:
    QGDict           *dict;

private:
    QBaseBucket      *curNode;
    uint              curIndex;
};

inline QCollection::Item QGDictIterator::get() const
{
    return curNode ? curNode-&gt;getData() : 0;
}

inline QString QGDictIterator::getKeyString() const
{
    return curNode ? ((QStringBucket*)curNode)-&gt;getKey() : QString::null;
}

inline const char *QGDictIterator::getKeyAscii() const
{
    return curNode ? ((QAsciiBucket*)curNode)-&gt;getKey() : 0;
}

inline long QGDictIterator::getKeyInt() const
{
    return curNode ? ((QIntBucket*)curNode)-&gt;getKey() : 0;
}

inline void *QGDictIterator::getKeyPtr() const
{
    return curNode ? ((QPtrBucket*)curNode)-&gt;getKey() : 0;
}


#endif // QGDICT_H

</pre>
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<td>Copyright  2001 Trolltech<td><a href="http://www.trolltech.com/trademarks.html">Trademarks</a>
<td align="right"><div align="right">Qt version 2.3.2</div>
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