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****************************************************************************/

#ifndef QMETADATACONTROL_H
#define QMETADATACONTROL_H

#include "qmediacontrol.h"
#include "qmediaobject.h"

#include "qmediaresource.h"

QTM_BEGIN_NAMESPACE


class Q_MEDIA_EXPORT QMetaDataControl : public QMediaControl
{
    Q_OBJECT

public:
    ~QMetaDataControl();

    virtual bool isWritable() const = 0;
    virtual bool isMetaDataAvailable() const = 0;

    virtual QVariant metaData(QtMedia::MetaData key) const = 0;
    virtual void setMetaData(QtMedia::MetaData key, const QVariant &value) = 0;
    virtual QList<QtMedia::MetaData> availableMetaData() const = 0;

    virtual QVariant extendedMetaData(const QString &key) const = 0;
    virtual void setExtendedMetaData(const QString &key, const QVariant &value) = 0;
    virtual QStringList availableExtendedMetaData() const = 0;


Q_SIGNALS:
    void metaDataChanged();

    void writableChanged(bool writable);
    void metaDataAvailableChanged(bool available);

protected:
    QMetaDataControl(QObject *parent = 0);
};

#define QMetaDataControl_iid "com.nokia.Qt.QMetaDataControl/1.0"
Q_MEDIA_DECLARE_CONTROL(QMetaDataControl, QMetaDataControl_iid)

QTM_END_NAMESPACE

#endif  // QMETADATAPROVIDER_H
