qtmobility/src/multimedia/qmediaobject.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Wed, 23 Jun 2010 19:08:38 +0300
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Revision: 201023 Kit: 2010125
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/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the Qt Mobility Components.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file.  Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights.  These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QABSTRACTMEDIAOBJECT_H
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#define QABSTRACTMEDIAOBJECT_H
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#include <QtCore/qobject.h>
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#include <QtCore/qstringlist.h>
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#include <qmobilityglobal.h>
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#include "qtmedianamespace.h"
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QT_BEGIN_NAMESPACE
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class QMediaService;
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class QMediaBindableInterface;
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class QMediaObjectPrivate;
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class Q_MULTIMEDIA_EXPORT QMediaObject : public QObject
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{
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    Q_OBJECT
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    Q_PROPERTY(int notifyInterval READ notifyInterval WRITE setNotifyInterval NOTIFY notifyIntervalChanged)
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public:
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    ~QMediaObject();
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    virtual bool isAvailable() const;
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    virtual QtMultimedia::AvailabilityError availabilityError() const;
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    virtual QMediaService* service() const;
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    int notifyInterval() const;
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    void setNotifyInterval(int milliSeconds);
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    virtual bool bind(QObject *);
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    virtual void unbind(QObject *);
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    bool isMetaDataAvailable() const;
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    QVariant metaData(QtMultimedia::MetaData key) const;
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    QList<QtMultimedia::MetaData> availableMetaData() const;
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    QVariant extendedMetaData(const QString &key) const;
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    QStringList availableExtendedMetaData() const;
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Q_SIGNALS:
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    void notifyIntervalChanged(int milliSeconds);
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    void metaDataAvailableChanged(bool available);
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    void metaDataChanged();
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    void availabilityChanged(bool available);
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protected:
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    QMediaObject(QObject *parent, QMediaService *service);
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    QMediaObject(QMediaObjectPrivate &dd, QObject *parent, QMediaService *service);
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    void addPropertyWatch(QByteArray const &name);
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    void removePropertyWatch(QByteArray const &name);
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    QMediaObjectPrivate *d_ptr;
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private:
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    void setupMetaData();
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    Q_DECLARE_PRIVATE(QMediaObject)
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    Q_PRIVATE_SLOT(d_func(), void _q_notify())
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};
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QT_END_NAMESPACE
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#endif  // QABSTRACTMEDIAOBJECT_H