qtmobility/src/multimedia/qmediaplaylistsourcecontrol.cpp
changeset 14 6fbed849b4f4
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/qtmobility/src/multimedia/qmediaplaylistsourcecontrol.cpp	Wed Jun 23 19:08:38 2010 +0300
@@ -0,0 +1,123 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#include <qmediaplaylistsourcecontrol.h>
+#include <qmediacontrol_p.h>
+
+QT_BEGIN_NAMESPACE
+
+/*!
+    \class QMediaPlaylistSourceControl
+    \ingroup multimedia
+
+    \preliminary
+    \brief The QMediaPlaylistSourceControl class provides access to the playlist playback
+    functionality of a QMediaService.
+
+    This control allows QMediaPlaylist to be passed directly to the service
+    instead of playing media sources one by one.  This control should be
+    implemented if backend benefits from knowing the next media source to be
+    played, for example for preloading, cross fading or gap-less playback.
+
+    If QMediaPlaylistSourceControl is provided, the backend must listen for
+    current playlist item changes to load corresponding media source and
+    advance the playlist  with QMediaPlaylist::next() when playback of the
+    current media is finished.
+
+    The interface name of QMediaPlaylistSourceControl is \c com.nokia.Qt.QMediaPlaylistSourceControl/1.0 as
+    defined in QMediaPlaylistSourceControl_iid.
+
+    \sa QMediaService::requestControl(), QMediaPlayer
+*/
+
+/*!
+    \macro QMediaPlaylistSourceControl_iid
+
+    \c com.nokia.Qt.QMediaPlaylistSourceControl/1.0
+
+    Defines the interface name of the QMediaPlaylistSourceControl class.
+
+    \relates QMediaPlaylistSourceControl
+*/
+
+/*!
+  Create a new playlist source control object with the given \a parent.
+*/
+QMediaPlaylistSourceControl::QMediaPlaylistSourceControl(QObject *parent):
+    QMediaControl(*new QMediaControlPrivate, parent)
+{
+}
+
+/*!
+  Destroys the playlist control.
+*/
+QMediaPlaylistSourceControl::~QMediaPlaylistSourceControl()
+{
+}
+
+
+/*!
+  \fn QMediaPlaylistSourceControl::playlist() const
+
+  Returns the current playlist.
+  Should return a null pointer if no playlist is assigned.
+*/
+
+/*!
+  \fn QMediaPlaylistSourceControl::setPlaylist(QMediaPlaylist *playlist)
+
+  Set the playlist of this media player to \a playlist.
+  If a null pointer is passed, the playlist source should be disabled.
+
+  The current media should be replaced with the current item of the media playlist.
+*/
+
+
+/*!
+  \fn QMediaPlaylistSourceControl::playlistChanged(QMediaPlaylist*)
+
+  Signal emited when the playlist has changed.
+*/
+
+#include "moc_qmediaplaylistsourcecontrol.cpp"
+QT_END_NAMESPACE
+