# qcache.h Include File

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# qcache.h

This is the verbatim text of the qcache.h include file. It is provided only for illustration; the copyright remains with Trolltech.

    /****************************************************************************
    ** $Id: qt/qcache.h   3.3.8   edited Jan 11 14:38 $
    **
    ** Definition of QCache template class
    **
    ** Created : 950209
    **
    ** Copyright (C) 1992-2007 Trolltech ASA.  All rights reserved.
    **
    ** This file is part of the tools module of the Qt GUI Toolkit.
    **
    ** This file may be used under the terms of the GNU General Public
    ** License versions 2.0 or 3.0 as published by the Free Software
    ** Foundation and appearing in the file LICENSE.GPL 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:
    ** http://trolltech.com/products/qt/licenses/licensing/opensource/.
    ** If you are unsure which license is appropriate for your use, please
    ** review the following information:
    ** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
    ** or contact the sales department at sales@trolltech.com.
    **
    ** This file may be used under the terms of the Q Public License as
    ** 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 QCACHE_H
    #define QCACHE_H

    #ifndef QT_H
    #include "qgcache.h"
    #endif // QT_H

    template<class type>
    class QCache
    #ifdef Q_QDOC
    	: public QPtrCollection
    #else
    	: public QGCache
    #endif
    {
    public:
        QCache( const QCache<type> &c ) : QGCache(c) {}
        QCache( int maxCost=100, int size=17, bool caseSensitive=TRUE )
    	: QGCache( maxCost, size, StringKey, caseSensitive, FALSE ) {}
       ~QCache()				{ clear(); }
        QCache<type> &operator=( const QCache<type> &c )
    			{ return (QCache<type>&)QGCache::operator=(c); }
        int	  maxCost()   const		{ return QGCache::maxCost(); }
        int	  totalCost() const		{ return QGCache::totalCost(); }
        void  setMaxCost( int m )		{ QGCache::setMaxCost(m); }
        uint  count()     const		{ return QGCache::count(); }
        uint  size()      const		{ return QGCache::size(); }
        bool  isEmpty()   const		{ return QGCache::count() == 0; }
        void  clear()			{ QGCache::clear(); }
        bool  insert( const QString &k, const type *d, int c=1, int p=0 )
    			{ return QGCache::insert_string(k,(Item)d,c,p);}
        bool  remove( const QString &k )
    			{ return QGCache::remove_string(k); }
        type *take( const QString &k )
    			{ return (type *)QGCache::take_string(k); }
        type *find( const QString &k, bool ref=TRUE ) const
    			{ return (type *)QGCache::find_string(k,ref);}
        type *operator[]( const QString &k ) const
    			{ return (type *)QGCache::find_string(k);}
        void  statistics() const	      { QGCache::statistics(); }
    private:
        void  deleteItem( Item d );
    };

    #if !defined(Q_BROKEN_TEMPLATE_SPECIALIZATION)
    template<> inline void QCache<void>::deleteItem( QPtrCollection::Item )
    {
    }
    #endif

    template<class type> inline void QCache<type>::deleteItem( QPtrCollection::Item d )
    {
        if ( del_item ) delete (type *)d;
    }

    template<class type>
    class QCacheIterator : public QGCacheIterator
    {
    public:
        QCacheIterator( const QCache<type> &c ):QGCacheIterator((QGCache &)c) {}
        QCacheIterator( const QCacheIterator<type> &ci)
    				: QGCacheIterator( (QGCacheIterator &)ci ) {}
        QCacheIterator<type> &operator=(const QCacheIterator<type>&ci)
    	{ return ( QCacheIterator<type>&)QGCacheIterator::operator=( ci ); }
        uint  count()   const     { return QGCacheIterator::count(); }
        bool  isEmpty() const     { return QGCacheIterator::count() == 0; }
        bool  atFirst() const     { return QGCacheIterator::atFirst(); }
        bool  atLast()  const     { return QGCacheIterator::atLast(); }
        type *toFirst()	      { return (type *)QGCacheIterator::toFirst(); }
        type *toLast()	      { return (type *)QGCacheIterator::toLast(); }
        operator type *() const   { return (type *)QGCacheIterator::get(); }
        type *current()   const   { return (type *)QGCacheIterator::get(); }
        QString currentKey() const{ return QGCacheIterator::getKeyString(); }
        type *operator()()	      { return (type *)QGCacheIterator::operator()();}
        type *operator++()	      { return (type *)QGCacheIterator::operator++(); }
        type *operator+=(uint j)  { return (type *)QGCacheIterator::operator+=(j);}
        type *operator--()	      { return (type *)QGCacheIterator::operator--(); }
        type *operator-=(uint j)  { return (type *)QGCacheIterator::operator-=(j);}
    };

    #endif // QCACHE_H