Long live Qt 4.5!

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diff --git a/examples/itemviews/editabletreemodel/treeitem.h b/examples/itemviews/editabletreemodel/treeitem.h
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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 examples 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 TREEITEM_H
+#define TREEITEM_H
+
+#include <QList>
+#include <QVariant>
+#include <QVector>
+
+//! [0]
+class TreeItem
+{
+public:
+    TreeItem(const QVector<QVariant> &data, TreeItem *parent = 0);
+    ~TreeItem();
+
+    TreeItem *child(int number);
+    int childCount() const;
+    int columnCount() const;
+    QVariant data(int column) const;
+    bool insertChildren(int position, int count, int columns);
+    bool insertColumns(int position, int columns);
+    TreeItem *parent();
+    bool removeChildren(int position, int count);
+    bool removeColumns(int position, int columns);
+    int childNumber() const;
+    bool setData(int column, const QVariant &value);
+
+private:
+    QList<TreeItem*> childItems;
+    QVector<QVariant> itemData;
+    TreeItem *parentItem;
+};
+//! [0]
+
+#endif