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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, 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 are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef Q3CLEANUPHANDLER_H
+#define Q3CLEANUPHANDLER_H
+
+#include <QtCore/qlist.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Qt3SupportLight)
+
+template<class T>
+class Q3CleanupHandler
+{
+ QListData p;
+public:
+ inline Q3CleanupHandler()
+ { p.d = 0; }
+ ~Q3CleanupHandler()
+ {
+ if (p.d) {
+ for (int i = 0; i < p.size(); ++i) {
+ T** t = static_cast<T**>(*p.at(i));
+ delete *t;
+ *t = 0;
+ }
+ qFree(p.d);
+ p.d = 0;
+ }
+ }
+
+ T* add(T **object)
+ {
+ if (!p.d) {
+ p.d = &QListData::shared_null;
+ p.d->ref.ref();
+ p.detach();
+ }
+ *p.prepend() = object;
+ return *object;
+ }
+ void remove(T **object)
+ {
+ if (p.d)
+ for (int i = 0; i < p.size(); ++i)
+ if (*p.at(i) == object)
+ p.remove(i--);
+ }
+};
+
+template<class T>
+class Q3SingleCleanupHandler
+{
+ T **object;
+public:
+ inline Q3SingleCleanupHandler()
+ : object(0) {}
+ inline ~Q3SingleCleanupHandler()
+ { if (object) { delete *object; *object = 0; } }
+ inline T* set(T **o)
+ { object = o; return *object; }
+ inline void reset() { object = 0; }
+};
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif //Q3CLEANUPHANDLER_H