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diff --git a/demos/sub-attaq/qanimationstate.cpp b/demos/sub-attaq/qanimationstate.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui 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 Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qanimationstate.h"
+
+#include <QtCore/qstate.h>
+
+QT_BEGIN_NAMESPACE
+
+/*!
+\class QAnimationState
+
+\brief The QAnimationState class provides state that handle an animation and emit
+a signal when this animation is finished.
+
+\ingroup statemachine
+
+QAnimationState provides a state that handle an animation. It will start this animation
+when the state is entered and stop it when it is leaved. When the animation has finished the
+state emit animationFinished signal.
+QAnimationState is part of \l{The State Machine Framework}.
+
+\code
+QStateMachine machine;
+QAnimationState *s = new QAnimationState(machine->rootState());
+QPropertyAnimation *animation = new QPropertyAnimation(obj, "pos");
+s->setAnimation(animation);
+QState *s2 = new QState(machine->rootState());
+s->addTransition(s, SIGNAL(animationFinished()), s2);
+machine.start();
+\endcode
+
+\sa QState, {The Animation Framework}
+*/
+
+
+#ifndef QT_NO_ANIMATION
+
+/*!
+  Constructs a new state with the given \a parent state.
+*/
+QAnimationState::QAnimationState(QState *parent)
+    : QState(parent), m_animation(0)
+{
+}
+
+/*!
+  Destroys the animation state.
+*/
+QAnimationState::~QAnimationState()
+{
+}
+
+/*!
+  Set an \a animation for this QAnimationState. If an animation was previously handle by this
+  state then it won't emit animationFinished for the old animation. The QAnimationState doesn't
+  take the ownership of the animation.
+*/
+void QAnimationState::setAnimation(QAbstractAnimation *animation)
+{
+    if (animation == m_animation)
+        return;
+
+    //Disconnect from the previous animation if exist
+    if(m_animation)
+        disconnect(m_animation, SIGNAL(finished()), this, SIGNAL(animationFinished()));
+
+    m_animation = animation;
+
+    if (m_animation) {
+        //connect the new animation
+        connect(m_animation, SIGNAL(finished()), this, SIGNAL(animationFinished()));
+    }
+}
+
+/*!
+  Returns the animation handle by this animation state, or 0 if there is no animation.
+*/
+QAbstractAnimation* QAnimationState::animation() const
+{
+    return m_animation;
+}
+
+/*!
+  \reimp
+*/
+void QAnimationState::onEntry(QEvent *)
+{
+    if (m_animation)
+        m_animation->start();
+}
+
+/*!
+  \reimp
+*/
+void QAnimationState::onExit(QEvent *)
+{
+    if (m_animation)
+        m_animation->stop();
+}
+
+/*!
+  \reimp
+*/
+bool QAnimationState::event(QEvent *e)
+{
+    return QState::event(e);
+}
+
+QT_END_NAMESPACE
+
+#endif