qtmobility/src/multimedia/qmediaplaylistcontrol.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Mon, 03 May 2010 13:18:40 +0300
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Revision: 201015 Kit: 201018
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/****************************************************************************
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**
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** Copyright (C) 2009 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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#include "qmediaplaylistcontrol.h"
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#include "qmediacontrol_p.h"
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QTM_BEGIN_NAMESPACE
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/*!
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    \class QMediaPlaylistControl
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    \ingroup multimedia-serv
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    \preliminary
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    \brief The QMediaPlaylistControl class provides access to the playlist functionality of a
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    QMediaService.
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    If a QMediaService contains an internal playlist it will implement QMediaPlaylistControl.  This
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    control provides access to the contents of the \l {playlistProvider()}{playlist}, as well as the
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    \l {currentIndex()}{position} of the current media, and a means of navigating to the
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    \l {next()}{next} and \l {previous()}{previous} media.
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    The functionality provided by the control is exposed to application code through the
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    QMediaPlaylist class.
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    The interface name of QMediaPlaylistControl is \c com.nokia.Qt.QMediaPlaylistControl/1.0 as
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    defined in QMediaPlaylistControl_iid.
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    \sa QMediaService::control(), QMediaPlayer
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*/
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/*!
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    \macro QMediaPlaylistControl_iid
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    \c com.nokia.Qt.QMediaPlaylistControl/1.0
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    Defines the interface name of the QMediaPlaylistControl class.
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    \relates QMediaPlaylistControl
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*/
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/*!
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  Create a new playlist control object with the given \a parent.
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*/
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QMediaPlaylistControl::QMediaPlaylistControl(QObject *parent):
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    QMediaControl(*new QMediaControlPrivate, parent)
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{
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}
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/*!
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  Destroys the playlist control.
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*/
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QMediaPlaylistControl::~QMediaPlaylistControl()
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{
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}
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/*!
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  \fn QMediaPlaylistControl::playlistProvider() const
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  Returns the playlist used by this media player.
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*/
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/*!
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  \fn QMediaPlaylistControl::setPlaylistProvider(QMediaPlaylistProvider *playlist)
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  Set the playlist of this media player to \a playlist.
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  In many cases it is possible just to use the playlist
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  constructed by player, but sometimes replacing the whole
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  playlist allows to avoid copyting of all the items bettween playlists.
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  Returns true if player can use this passed playlist; otherwise returns false.
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*/
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/*!
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  \fn QMediaPlaylistControl::currentIndex() const
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  Returns position of the current media source in the playlist.
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*/
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/*!
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  \fn QMediaPlaylistControl::setCurrentIndex(int position)
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  Jump to the item at the given \a position.
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*/
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/*!
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  \fn QMediaPlaylistControl::nextIndex(int step) const
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  Returns the index of item, which were current after calling next()
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  \a step times.
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  Returned value depends on the size of playlist, current position
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  and playback mode.
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  \sa QMediaPlaylist::playbackMode
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*/
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/*!
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  \fn QMediaPlaylistControl::previousIndex(int step) const
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  Returns the index of item, which were current after calling previous()
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  \a step times.
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  \sa QMediaPlaylist::playbackMode
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*/
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/*!
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  \fn QMediaPlaylistControl::next()
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  Moves to the next item in playlist.
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*/
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/*!
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  \fn QMediaPlaylistControl::previous()
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  Returns to the previous item in playlist.
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*/
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/*!
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  \fn QMediaPlaylistControl::playbackMode() const
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  Returns the playlist navigation mode.
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  \sa QMediaPlaylist::PlaybackMode
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*/
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/*!
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  \fn QMediaPlaylistControl::setPlaybackMode(QMediaPlaylist::PlaybackMode mode)
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  Sets the playback \a mode.
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  \sa QMediaPlaylist::PlaybackMode
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*/
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/*!
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  \fn QMediaPlaylistControl::playlistProviderChanged()
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  Signal emited when the playlist provider has changed.
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*/
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/*!
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  \fn QMediaPlaylistControl::currentIndexChanged(int position)
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  Signal emited when the playlist \a position is changed.
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*/
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/*!
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  \fn QMediaPlaylistControl::playbackModeChanged(QMediaPlaylist::PlaybackMode mode)
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  Signal emited when the playback \a mode is changed.
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*/
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/*!
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  \fn QMediaPlaylistControl::currentMediaChanged(const QMediaContent& content)
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  Signal emitted when current media changes to \a content.
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*/
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#include "moc_qmediaplaylistcontrol.cpp"
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QTM_END_NAMESPACE
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