src/qt3support/tools/q3cache.h
changeset 0 1918ee327afb
child 4 3b1da2848fc7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/qt3support/tools/q3cache.h	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,130 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef Q3CACHE_H
+#define Q3CACHE_H
+
+#include <Qt3Support/q3gcache.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Qt3SupportLight)
+
+template<class type>
+class Q3Cache
+#ifdef qdoc
+        : public Q3PtrCollection
+#else
+        : public Q3GCache
+#endif
+{
+public:
+    Q3Cache(const Q3Cache<type> &c) : Q3GCache(c) {}
+    Q3Cache(int maxCost=100, int size=17, bool caseSensitive=true)
+        : Q3GCache(maxCost, size, StringKey, caseSensitive, false) {}
+   ~Q3Cache()                           { clear(); }
+    Q3Cache<type> &operator=(const Q3Cache<type> &c)
+                        { return (Q3Cache<type>&)Q3GCache::operator=(c); }
+    int   maxCost()   const             { return Q3GCache::maxCost(); }
+    int   totalCost() const             { return Q3GCache::totalCost(); }
+    void  setMaxCost(int m)           { Q3GCache::setMaxCost(m); }
+    uint  count()     const             { return Q3GCache::count(); }
+    uint  size()      const             { return Q3GCache::size(); }
+    bool  isEmpty()   const             { return Q3GCache::count() == 0; }
+    void  clear()                       { Q3GCache::clear(); }
+    bool  insert(const QString &k, const type *d, int c=1, int p=0)
+                        { return Q3GCache::insert_string(k,(Item)d,c,p);}
+    bool  remove(const QString &k)
+                        { return Q3GCache::remove_string(k); }
+    type *take(const QString &k)
+                        { return (type *)Q3GCache::take_string(k); }
+    type *find(const QString &k, bool ref=true) const
+                        { return (type *)Q3GCache::find_string(k,ref);}
+    type *operator[](const QString &k) const
+                        { return (type *)Q3GCache::find_string(k);}
+    void  statistics() const          { Q3GCache::statistics(); }
+private:
+    void  deleteItem(Item d);
+};
+
+#if !defined(Q_BROKEN_TEMPLATE_SPECIALIZATION)
+template<> inline void Q3Cache<void>::deleteItem(Q3PtrCollection::Item)
+{
+}
+#endif
+
+template<class type> inline void Q3Cache<type>::deleteItem(Q3PtrCollection::Item d)
+{
+    if (del_item) delete (type *)d;
+}
+
+template<class type>
+class Q3CacheIterator : public Q3GCacheIterator
+{
+public:
+    Q3CacheIterator(const Q3Cache<type> &c):Q3GCacheIterator((Q3GCache &)c) {}
+    Q3CacheIterator(const Q3CacheIterator<type> &ci)
+                                : Q3GCacheIterator((Q3GCacheIterator &)ci) {}
+    Q3CacheIterator<type> &operator=(const Q3CacheIterator<type>&ci)
+        { return (Q3CacheIterator<type>&)Q3GCacheIterator::operator=(ci); }
+    uint  count()   const     { return Q3GCacheIterator::count(); }
+    bool  isEmpty() const     { return Q3GCacheIterator::count() == 0; }
+    bool  atFirst() const     { return Q3GCacheIterator::atFirst(); }
+    bool  atLast()  const     { return Q3GCacheIterator::atLast(); }
+    type *toFirst()           { return (type *)Q3GCacheIterator::toFirst(); }
+    type *toLast()            { return (type *)Q3GCacheIterator::toLast(); }
+    operator type *() const   { return (type *)Q3GCacheIterator::get(); }
+    type *current()   const   { return (type *)Q3GCacheIterator::get(); }
+    QString currentKey() const{ return Q3GCacheIterator::getKeyString(); }
+    type *operator()()        { return (type *)Q3GCacheIterator::operator()();}
+    type *operator++()        { return (type *)Q3GCacheIterator::operator++(); }
+    type *operator+=(uint j)  { return (type *)Q3GCacheIterator::operator+=(j);}
+    type *operator--()        { return (type *)Q3GCacheIterator::operator--(); }
+    type *operator-=(uint j)  { return (type *)Q3GCacheIterator::operator-=(j);}
+};
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // Q3CACHE_H