/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
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** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
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** 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
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** additional rights. These rights are described in the Nokia Qt LGPL
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** 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
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** packaging of this file.  Please review the following information to
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****************************************************************************/

#ifndef QMLEASEFOLLOW_H
#define QMLEASEFOLLOW_H

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

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Declarative)

class QmlMetaProperty;
class QmlEaseFollowPrivate;
class Q_DECLARATIVE_EXPORT QmlEaseFollow : public QObject, 
                                           public QmlPropertyValueSource
{
    Q_OBJECT
    Q_DECLARE_PRIVATE(QmlEaseFollow)
    Q_INTERFACES(QmlPropertyValueSource)
    Q_ENUMS(ReversingMode)

    Q_PROPERTY(qreal source READ sourceValue WRITE setSourceValue)
    Q_PROPERTY(qreal velocity READ velocity WRITE setVelocity)
    Q_PROPERTY(qreal duration READ duration WRITE setDuration)
    Q_PROPERTY(ReversingMode reversingMode READ reversingMode WRITE setReversingMode)
    Q_PROPERTY(bool enabled READ enabled WRITE setEnabled)

public:
    enum ReversingMode { Eased, Immediate, Sync };

    QmlEaseFollow(QObject *parent = 0);
    ~QmlEaseFollow();

    ReversingMode reversingMode() const;
    void setReversingMode(ReversingMode);

    qreal sourceValue() const;
    void setSourceValue(qreal);

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

    qreal duration() const;
    void setDuration(qreal);

    bool enabled() const;
    void setEnabled(bool enabled);

    virtual void setTarget(const QmlMetaProperty &);
};

QT_END_NAMESPACE

QML_DECLARE_TYPE(QmlEaseFollow);

QT_END_HEADER

#endif // QMLEASEFOLLOW_H