/****************************************************************************
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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
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** This file is part of the QtDeclarative module of the Qt Toolkit.
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** No Commercial Usage
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** Beta Release License Agreement.
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** GNU Lesser General Public License Usage
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** 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
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** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
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** packaging of this file.  Please review the following information to
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****************************************************************************/

#ifndef QMLFOLLOW_H
#define QMLFOLLOW_H

#include <QtDeclarative/qmlpropertyvaluesource.h>
#include <QtDeclarative/qml.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Declarative)

class QmlFollowPrivate;
class Q_DECLARATIVE_EXPORT QmlFollow : public QmlPropertyValueSource, 
                                 public QmlParserStatus
{
    Q_OBJECT
    Q_DECLARE_PRIVATE(QmlFollow)
    Q_INTERFACES(QmlParserStatus)

    Q_PROPERTY(qreal source READ sourceValue WRITE setSourceValue)
    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)
    Q_PROPERTY(bool enabled READ enabled WRITE setEnabled)
    Q_PROPERTY(qreal followValue READ value NOTIFY valueChanged)
    Q_PROPERTY(qreal modulus READ modulus WRITE setModulus NOTIFY modulusChanged)
    Q_PROPERTY(bool inSync READ inSync NOTIFY syncChanged)

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

    virtual void setTarget(const QmlMetaProperty &);

    qreal sourceValue() const;
    void setSourceValue(qreal value);
    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 modulus() const;
    void setModulus(qreal modulus);
    bool enabled() const;
    void setEnabled(bool enabled);
    bool inSync() const;

    qreal value() const;

Q_SIGNALS:
    void valueChanged(qreal);
    void syncChanged();
};

QT_END_NAMESPACE

QML_DECLARE_TYPE(QmlFollow)

QT_END_HEADER

#endif // QFXFOLLOW_H