Long live Qt 4.5!

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diff --git a/demos/undo/commands.h b/demos/undo/commands.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 demonstration applications 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 COMMANDS_H
+#define COMMANDS_H
+
+#include <QUndoCommand>
+#include "document.h"
+
+class AddShapeCommand : public QUndoCommand
+{
+public:
+    AddShapeCommand(Document *doc, const Shape &shape, QUndoCommand *parent = 0);
+    void undo();
+    void redo();
+
+private:
+    Document *m_doc;
+    Shape m_shape;
+    QString m_shapeName;
+};
+
+class RemoveShapeCommand : public QUndoCommand
+{
+public:
+    RemoveShapeCommand(Document *doc, const QString &shapeName, QUndoCommand *parent = 0);
+    void undo();
+    void redo();
+
+private:
+    Document *m_doc;
+    Shape m_shape;
+    QString m_shapeName;
+};
+
+class SetShapeColorCommand : public QUndoCommand
+{
+public:
+    SetShapeColorCommand(Document *doc, const QString &shapeName, const QColor &color,
+                            QUndoCommand *parent = 0);
+
+    void undo();
+    void redo();
+
+    bool mergeWith(const QUndoCommand *command);
+    int id() const;
+
+private:
+    Document *m_doc;
+    QString m_shapeName;
+    QColor m_oldColor;
+    QColor m_newColor;
+};
+
+class SetShapeRectCommand : public QUndoCommand
+{
+public:
+    SetShapeRectCommand(Document *doc, const QString &shapeName, const QRect &rect,
+                            QUndoCommand *parent = 0);
+
+    void undo();
+    void redo();
+
+    bool mergeWith(const QUndoCommand *command);
+    int id() const;
+
+private:
+    Document *m_doc;
+    QString m_shapeName;
+    QRect m_oldRect;
+    QRect m_newRect;
+};
+
+#endif // COMMANDS_H