1 files changed, 137 insertions, 0 deletions
diff --git a/src/qt3support/tools/q3gcache.h b/src/qt3support/tools/q3gcache.h
new file mode 100644
index 0000000..7fabfa8
--- /dev/null
+++ b/src/qt3support/tools/q3gcache.h
@@ -0,0 +1,137 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 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