diff options
Diffstat (limited to 'qtinterface/qt4/Qt/q3gcache.h')
| -rw-r--r-- | qtinterface/qt4/Qt/q3gcache.h | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/qtinterface/qt4/Qt/q3gcache.h b/qtinterface/qt4/Qt/q3gcache.h new file mode 100644 index 0000000..f3756a0 --- /dev/null +++ b/qtinterface/qt4/Qt/q3gcache.h @@ -0,0 +1,137 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the Qt3Support module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial Usage +** Licensees holding valid Qt Commercial licenses may use this file in +** accordance with the Qt Commercial License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Nokia. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef Q3GCACHE_H +#define Q3GCACHE_H + +#include <Qt3Support/q3ptrcollection.h> +#include <Qt3Support/q3glist.h> +#include <Qt3Support/q3gdict.h> + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +QT_MODULE(Qt3SupportLight) + +class Q3CList; // internal classes +class Q3CListIt; +class Q3CDict; + +class Q_COMPAT_EXPORT Q3GCache : public Q3PtrCollection // generic LRU cache +{ +friend class Q3GCacheIterator; +protected: + enum KeyType { StringKey, AsciiKey, IntKey, PtrKey }; + // identical to Q3GDict's, but PtrKey is not used at the moment + + Q3GCache(int maxCost, uint size, KeyType kt, bool caseSensitive, + bool copyKeys); + Q3GCache(const Q3GCache &); // not allowed, calls fatal() + ~Q3GCache(); + Q3GCache &operator=(const Q3GCache &); // not allowed, calls fatal() + + uint count() const; + uint size() const; + int maxCost() const { return mCost; } + int totalCost() const { return tCost; } + void setMaxCost(int maxCost); + void clear(); + + bool insert_string(const QString &key, Q3PtrCollection::Item, + int cost, int priority); + bool insert_other(const char *key, Q3PtrCollection::Item, + int cost, int priority); + bool remove_string(const QString &key); + bool remove_other(const char *key); + Q3PtrCollection::Item take_string(const QString &key); + Q3PtrCollection::Item take_other(const char *key); + + Q3PtrCollection::Item find_string(const QString &key, bool ref=true) const; + Q3PtrCollection::Item find_other(const char *key, bool ref=true) const; + + void statistics() const; + +private: + bool makeRoomFor(int cost, int priority = -1); + KeyType keytype; + Q3CList *lruList; + Q3CDict *dict; + int mCost; + int tCost; + bool copyk; +}; + + +class Q_COMPAT_EXPORT Q3GCacheIterator // generic cache iterator +{ +protected: + Q3GCacheIterator(const Q3GCache &); + Q3GCacheIterator(const Q3GCacheIterator &); + ~Q3GCacheIterator(); + Q3GCacheIterator &operator=(const Q3GCacheIterator &); + + uint count() const; + bool atFirst() const; + bool atLast() const; + Q3PtrCollection::Item toFirst(); + Q3PtrCollection::Item toLast(); + + Q3PtrCollection::Item get() const; + QString getKeyString() const; + const char *getKeyAscii() const; + long getKeyInt() const; + + Q3PtrCollection::Item operator()(); + Q3PtrCollection::Item operator++(); + Q3PtrCollection::Item operator+=(uint); + Q3PtrCollection::Item operator--(); + Q3PtrCollection::Item operator-=(uint); + +protected: + Q3CListIt *it; // iterator on cache list +}; + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif // Q3GCACHE_H |