Long live Qt 4.5!

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diff --git a/examples/tools/undoframework/mainwindow.h b/examples/tools/undoframework/mainwindow.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 MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QMainWindow>
+
+QT_BEGIN_NAMESPACE
+class QAction;
+class QToolBar;
+class QMenu;
+class QUndoStack;
+class QUndoView;
+QT_END_NAMESPACE
+class DiagramScene;
+class DiagramItem;
+
+//! [0]
+class MainWindow : public QMainWindow
+{
+    Q_OBJECT
+
+public:
+    MainWindow();
+
+public slots:
+    void itemMoved(DiagramItem *movedDiagram, const QPointF &moveStartPosition);
+
+private slots:
+    void deleteItem();
+    void addBox();
+    void addTriangle();
+    void about();
+    void itemMenuAboutToShow();
+    void itemMenuAboutToHide();
+
+private:
+    void createActions();
+    void createMenus();
+    void createUndoView();
+
+    QAction *deleteAction;
+    QAction *addBoxAction;
+    QAction *addTriangleAction;
+    QAction *undoAction;
+    QAction *redoAction;
+    QAction *exitAction;
+    QAction *aboutAction;
+
+    QMenu *fileMenu;
+    QMenu *editMenu;
+    QMenu *itemMenu;
+    QMenu *helpMenu;
+
+    DiagramScene *diagramScene;
+    QUndoStack *undoStack;
+    QUndoView *undoView;
+};
+//! [0]
+
+#endif