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** This file is part of the QtDeclarative module of the Qt Toolkit.
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#ifndef QDECLARATIVESPRINGANIMATION_H
#define QDECLARATIVESPRINGANIMATION_H

#include <qdeclarative.h>
#include "private/qdeclarativeanimation_p.h"

#include <QtCore/qobject.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Declarative)

class QDeclarativeSpringAnimationPrivate;
class Q_AUTOTEST_EXPORT QDeclarativeSpringAnimation : public QDeclarativeNumberAnimation
{
    Q_OBJECT
    Q_DECLARE_PRIVATE(QDeclarativeSpringAnimation)
    Q_INTERFACES(QDeclarativePropertyValueSource)

    Q_PROPERTY(qreal velocity READ velocity WRITE setVelocity)
    Q_PROPERTY(qreal spring READ spring WRITE setSpring)
    Q_PROPERTY(qreal damping READ damping WRITE setDamping)
    Q_PROPERTY(qreal epsilon READ epsilon WRITE setEpsilon)
    Q_PROPERTY(qreal modulus READ modulus WRITE setModulus NOTIFY modulusChanged)
    Q_PROPERTY(qreal mass READ mass WRITE setMass NOTIFY massChanged)

public:
    QDeclarativeSpringAnimation(QObject *parent=0);
    ~QDeclarativeSpringAnimation();

    qreal velocity() const;
    void setVelocity(qreal velocity);

    qreal spring() const;
    void setSpring(qreal spring);

    qreal damping() const;
    void setDamping(qreal damping);

    qreal epsilon() const;
    void setEpsilon(qreal epsilon);

    qreal mass() const;
    void setMass(qreal modulus);

    qreal modulus() const;
    void setModulus(qreal modulus);

    virtual void transition(QDeclarativeStateActions &actions,
                            QDeclarativeProperties &modified,
                            TransitionDirection direction);

protected:
    virtual QAbstractAnimation *qtAnimation();

Q_SIGNALS:
    void modulusChanged();
    void massChanged();
    void syncChanged();
};

QT_END_NAMESPACE

QML_DECLARE_TYPE(QDeclarativeSpringAnimation)

QT_END_HEADER

#endif // QDECLARATIVESPRINGANIMATION_H