qasciicache.h

Trolltech公司发布的图形界面操作系统。可在qt-embedded-2.3.10平台上编译为嵌入式图形界面操作系统。

/**********************************************************************
** Copyright (C) 2000-2005 Trolltech AS.  All rights reserved.
**
** This file is part of the Qtopia Environment.
** 
** This program is free software; you can redistribute it and/or modify it
** under the terms of the GNU General Public License as published by the
** Free Software Foundation; either version 2 of the License, or (at your
** option) any later version.
** 
** A copy of the GNU GPL license version 2 is included in this package as 
** LICENSE.GPL.
**
** This program is distributed in the hope that it will be useful, but
** WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
** See the GNU General Public License for more details.
**
** In addition, as a special exception Trolltech gives permission to link
** the code of this program with Qtopia applications copyrighted, developed
** and distributed by Trolltech under the terms of the Qtopia Personal Use
** License Agreement. You must comply with the GNU General Public License
** in all respects for all of the code used other than the applications
** licensed under the Qtopia Personal Use License Agreement. If you modify
** this file, you may extend this exception to your version of the file,
** but you are not obligated to do so. If you do not wish to do so, delete
** this exception statement from your version.
** 
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact [e-mail] if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/

#ifndef QASCIICACHE_H
#define QASCIICACHE_H

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


template<class type> 
class QAsciiCache : public QGCache
{
public:
    QAsciiCache( const QAsciiCache<type> &c ) : QGCache(c) {}
    QAsciiCache( int maxCost=100, int size=17, bool caseSensitive=TRUE,
		 bool copyKeys=TRUE )
	: QGCache( maxCost, size, AsciiKey, caseSensitive, copyKeys ) {}
   ~QAsciiCache()			{ clear(); }
    QAsciiCache<type> &operator=( const QAsciiCache<type> &c )
			{ return (QAsciiCache<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 char *k, const type *d, int c=1, int p=0 )
			{ return QGCache::insert_other(k,(Item)d,c,p);}
    bool  remove( const char *k )
			{ return QGCache::remove_other(k); }
    type *take( const char *k )
			{ return (type *)QGCache::take_other(k); }
    type *find( const char *k, bool ref=TRUE ) const
			{ return (type *)QGCache::find_other(k,ref);}
    type *operator[]( const char *k ) const
			{ return (type *)QGCache::find_other(k);}
    void  statistics() const	      { QGCache::statistics(); }
private:
    void  deleteItem( Item d );
};

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

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


template<class type> 
class QAsciiCacheIterator : public QGCacheIterator
{
public:
    QAsciiCacheIterator( const QAsciiCache<type> &c ):QGCacheIterator((QGCache &)c) {}
    QAsciiCacheIterator( const QAsciiCacheIterator<type> &ci)
				: QGCacheIterator( (QGCacheIterator &)ci ) {}
    QAsciiCacheIterator<type> &operator=(const QAsciiCacheIterator<type>&ci)
	{ return ( QAsciiCacheIterator<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(); }
    const char *currentKey() const { return QGCacheIterator::getKeyAscii(); }
    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 // QASCIICACHE_H