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#ifndef QMLEASEFOLLOW_H
#define QMLEASEFOLLOW_H

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

#include <QtCore/qobject.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 NOTIFY sourceChanged)
    Q_PROPERTY(qreal velocity READ velocity WRITE setVelocity NOTIFY velocityChanged)
    Q_PROPERTY(qreal duration READ duration WRITE setDuration NOTIFY durationChanged)
    Q_PROPERTY(ReversingMode reversingMode READ reversingMode WRITE setReversingMode NOTIFY reversingModeChanged)
    Q_PROPERTY(bool enabled READ enabled WRITE setEnabled NOTIFY enabledChanged)
    Q_PROPERTY(qreal maximumEasingTime READ maximumEasingTime WRITE setMaximumEasingTime NOTIFY maximumEasingTimeChanged)

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);

    qreal maximumEasingTime() const;
    void setMaximumEasingTime(qreal);

    virtual void setTarget(const QmlMetaProperty &);

Q_SIGNALS:
    void sourceChanged();
    void velocityChanged();
    void durationChanged();
    void reversingModeChanged();
    void enabledChanged();
    void maximumEasingTimeChanged();
};

QT_END_NAMESPACE

QML_DECLARE_TYPE(QmlEaseFollow);

QT_END_HEADER

#endif // QMLEASEFOLLOW_H