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diff --git a/demos/sub-attaq/custompropertyanimation.h b/demos/sub-attaq/custompropertyanimation.h
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtCore 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 http://www.qtsoftware.com/contact.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef CUSTOMPROPERTYANIMATION_H
+#define CUSTOMPROPERTYANIMATION_H
+
+#include <QtCore/qvariantanimation.h>
+
+QT_BEGIN_NAMESPACE
+class QGraphicsItem;
+QT_END_NAMESPACE
+
+struct AbstractProperty
+{
+    virtual QVariant read() const = 0;
+    virtual void write(const QVariant &value) = 0;
+};
+
+
+class CustomPropertyAnimation : public QVariantAnimation
+{
+    Q_OBJECT
+
+    template <typename Target, typename T, typename T2 = T>
+    class MemberFunctionProperty : public AbstractProperty
+    {
+    public:
+        typedef T (Target::*Getter)(void) const;
+        typedef void (Target::*Setter)(T2);
+
+        MemberFunctionProperty(Target* target, Getter getter, Setter setter)
+            : m_target(target), m_getter(getter), m_setter(setter) {}
+
+        virtual void write(const QVariant &value)
+        {
+            if (m_setter) (m_target->*m_setter)(qVariantValue<T>(value));
+        }
+
+        virtual QVariant read() const
+        {
+            if (m_getter) return qVariantFromValue<T>((m_target->*m_getter)());
+            return QVariant();
+        }
+
+    private:
+        Target *m_target;
+        Getter m_getter;
+        Setter m_setter;
+    };
+
+public:
+    CustomPropertyAnimation(QObject *parent = 0);
+    ~CustomPropertyAnimation();
+
+    template<class Target, typename T>
+    void setMemberFunctions(Target* target, T (Target::*getter)() const, void (Target::*setter)(const T& ))
+    {
+        setProperty(new MemberFunctionProperty<Target, T, const T&>(target, getter, setter));
+    }
+
+    template<class Target, typename T>
+    void setMemberFunctions(Target* target, T (Target::*getter)() const, void (Target::*setter)(T))
+    {
+        setProperty(new MemberFunctionProperty<Target, T>(target, getter, setter));
+    }
+
+    void updateCurrentValue(const QVariant &value);
+    void updateState(QAbstractAnimation::State oldState, QAbstractAnimation::State newState);
+    void setProperty(AbstractProperty *animProp);
+
+private:
+    Q_DISABLE_COPY(CustomPropertyAnimation);
+    AbstractProperty *animProp;
+};
+
+#endif // CUSTOMPROPERTYANIMATION_H