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src/qt/src/tools/qintcache.h
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00001 /****************************************************************************
00002 ** $Id: qt/qintcache.h   3.3.8   edited Jan 11 14:38 $
00003 **
00004 ** Definition of QIntCache template class
00005 **
00006 ** Created : 950209
00007 **
00008 ** Copyright (C) 1992-2007 Trolltech ASA.  All rights reserved.
00009 **
00010 ** This file is part of the tools module of the Qt GUI Toolkit.
00011 **
00012 ** This file may be distributed under the terms of the Q Public License
00013 ** as defined by Trolltech ASA of Norway and appearing in the file
00014 ** LICENSE.QPL included in the packaging of this file.
00015 **
00016 ** This file may be distributed and/or modified under the terms of the
00017 ** GNU General Public License version 2 as published by the Free Software
00018 ** Foundation and appearing in the file LICENSE.GPL included in the
00019 ** packaging of this file.
00020 **
00021 ** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
00022 ** licenses may use this file in accordance with the Qt Commercial License
00023 ** Agreement provided with the Software.
00024 **
00025 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
00026 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
00027 **
00028 ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
00029 **   information about Qt Commercial License Agreements.
00030 ** See http://www.trolltech.com/qpl/ for QPL licensing information.
00031 ** See http://www.trolltech.com/gpl/ for GPL licensing information.
00032 **
00033 ** Contact info@trolltech.com if any conditions of this licensing are
00034 ** not clear to you.
00035 **
00036 **********************************************************************/
00037 
00038 #ifndef QINTCACHE_H
00039 #define QINTCACHE_H
00040 
00041 #ifndef QT_H
00042 #include "qgcache.h"
00043 #endif // QT_H
00044 
00045 
00046 template<class type> 
00047 class QIntCache
00048 #ifdef Q_QDOC
00049         : public QPtrCollection
00050 #else
00051         : public QGCache
00052 #endif
00053 {
00054 public:
00055     QIntCache( const QIntCache<type> &c ) : QGCache(c) {}
00056     QIntCache( int maxCost=100, int size=17 )
00057         : QGCache( maxCost, size, IntKey, FALSE, FALSE ) {}
00058    ~QIntCache()         { clear(); }
00059     QIntCache<type> &operator=( const QIntCache<type> &c )
00060                         { return (QIntCache<type>&)QGCache::operator=(c); }
00061     int   maxCost()   const     { return QGCache::maxCost(); }
00062     int   totalCost() const     { return QGCache::totalCost(); }
00063     void  setMaxCost( int m)    { QGCache::setMaxCost(m); }
00064     uint  count()     const     { return QGCache::count(); }
00065     uint  size()      const     { return QGCache::size(); }
00066     bool  isEmpty()   const     { return QGCache::count() == 0; }
00067     bool  insert( long k, const type *d, int c=1, int p=0 )
00068                 { return QGCache::insert_other((const char*)k,(Item)d,c,p); }
00069     bool  remove( long k )
00070                 { return QGCache::remove_other((const char*)k); }
00071     type *take( long k )
00072                 { return (type *)QGCache::take_other((const char*)k);}
00073     void  clear()               { QGCache::clear(); }
00074     type *find( long k, bool ref=TRUE ) const
00075                 { return (type *)QGCache::find_other( (const char*)k,ref);}
00076     type *operator[]( long k ) const
00077                 { return (type *)QGCache::find_other( (const char*)k); }
00078     void  statistics() const { QGCache::statistics(); }
00079 private:
00080         void  deleteItem( Item d );
00081 };
00082 
00083 #if !defined(Q_BROKEN_TEMPLATE_SPECIALIZATION)
00084 template<> inline void QIntCache<void>::deleteItem( QPtrCollection::Item )
00085 {
00086 }
00087 #endif
00088 
00089 template<class type> inline void QIntCache<type>::deleteItem( QPtrCollection::Item d )
00090 {
00091     if ( del_item ) delete (type *)d;
00092 }
00093 
00094 template<class type> 
00095 class QIntCacheIterator : public QGCacheIterator
00096 {
00097 public:
00098     QIntCacheIterator( const QIntCache<type> &c )
00099         : QGCacheIterator( (QGCache &)c ) {}
00100     QIntCacheIterator( const QIntCacheIterator<type> &ci )
00101                               : QGCacheIterator((QGCacheIterator &)ci) {}
00102     QIntCacheIterator<type> &operator=( const QIntCacheIterator<type>&ci )
00103         { return ( QIntCacheIterator<type>&)QGCacheIterator::operator=( ci );}
00104     uint  count()   const     { return QGCacheIterator::count(); }
00105     bool  isEmpty() const     { return QGCacheIterator::count() == 0; }
00106     bool  atFirst() const     { return QGCacheIterator::atFirst(); }
00107     bool  atLast()  const     { return QGCacheIterator::atLast(); }
00108     type *toFirst()           { return (type *)QGCacheIterator::toFirst(); }
00109     type *toLast()            { return (type *)QGCacheIterator::toLast(); }
00110     operator type *()  const  { return (type *)QGCacheIterator::get(); }
00111     type *current()    const  { return (type *)QGCacheIterator::get(); }
00112     long  currentKey() const  { return (long)QGCacheIterator::getKeyInt();}
00113     type *operator()()        { return (type *)QGCacheIterator::operator()();}
00114     type *operator++()        { return (type *)QGCacheIterator::operator++(); }
00115     type *operator+=(uint j)  { return (type *)QGCacheIterator::operator+=(j);}
00116     type *operator--()        { return (type *)QGCacheIterator::operator--(); }
00117     type *operator-=(uint j)  { return (type *)QGCacheIterator::operator-=(j);}
00118 };
00119 
00120 
00121 #endif // QINTCACHE_H
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