qtmobility/plugins/multimedia/phonon/qphononmetadataprovider.cpp
changeset 4 90517678cc4f
parent 1 2b40d63a9c3d
child 5 453da2cfceef
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1:2b40d63a9c3d 4:90517678cc4f
     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
     6 **
       
     7 ** This file is part of the Qt Mobility Components.
       
     8 **
       
     9 ** $QT_BEGIN_LICENSE:LGPL$
       
    10 ** No Commercial Usage
       
    11 ** This file contains pre-release code and may not be distributed.
       
    12 ** You may use this file in accordance with the terms and conditions
       
    13 ** contained in the Technology Preview License Agreement accompanying
       
    14 ** this package.
       
    15 **
       
    16 ** GNU Lesser General Public License Usage
       
    17 ** Alternatively, this file may be used under the terms of the GNU Lesser
       
    18 ** General Public License version 2.1 as published by the Free Software
       
    19 ** Foundation and appearing in the file LICENSE.LGPL included in the
       
    20 ** packaging of this file.  Please review the following information to
       
    21 ** ensure the GNU Lesser General Public License version 2.1 requirements
       
    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
       
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    24 ** In addition, as a special exception, Nokia gives you certain additional
       
    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception
       
    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
       
    27 **
       
    28 ** If you have questions regarding the use of this file, please contact
       
    29 ** Nokia at qt-info@nokia.com.
       
    30 **
       
    31 **
       
    32 **
       
    33 **
       
    34 **
       
    35 **
       
    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 #include "qphononmetadataprovider.h"
       
    43 
       
    44 #include <QtCore/qstringlist.h>
       
    45 
       
    46 #include <QDebug>
       
    47 
       
    48 QPhononMetaDataProvider::QPhononMetaDataProvider(Phonon::MediaObject *session, QObject *parent)
       
    49     :QMetaDataControl(parent), m_session(session), m_metaDataAvailable(false)
       
    50 {
       
    51     connect(m_session, SIGNAL(metaDataChanged()), SLOT(updateTags()));
       
    52 
       
    53     m_keysMap["TITLE"] = QtMedia::Title;
       
    54     m_keysMap["ALBUM"] = QtMedia::AlbumTitle;
       
    55     m_keysMap["TRACKNUMBER"] = QtMedia::TrackNumber;
       
    56     m_keysMap["ARTIST"] = QtMedia::AlbumArtist;
       
    57     m_keysMap["PERFORMER"] = QtMedia::ContributingArtist;
       
    58     m_keysMap["COPYRIGHT"] = QtMedia::Copyright;
       
    59     m_keysMap["DESCRIPTION"] = QtMedia::Description;
       
    60     m_keysMap["GENRE"] = QtMedia::Genre;
       
    61     m_keysMap["DATE"] = QtMedia::Date;
       
    62 }
       
    63 
       
    64 QPhononMetaDataProvider::~QPhononMetaDataProvider()
       
    65 {
       
    66 }
       
    67 
       
    68 bool QPhononMetaDataProvider::isMetaDataAvailable() const
       
    69 {
       
    70     return !m_session->metaData().isEmpty();
       
    71 }
       
    72 
       
    73 bool QPhononMetaDataProvider::isWritable() const
       
    74 {
       
    75     return false;
       
    76 }
       
    77 
       
    78 QVariant QPhononMetaDataProvider::metaData(QtMedia::MetaData key) const
       
    79 {
       
    80     switch (key) {
       
    81     case QtMedia::AlbumArtist:
       
    82         return m_session->metaData(Phonon::ArtistMetaData);
       
    83     case QtMedia::ContributingArtist:
       
    84         return m_session->metaData("PERFORMER");
       
    85     case QtMedia::AlbumTitle:
       
    86         return m_session->metaData(Phonon::AlbumMetaData);
       
    87     case QtMedia::Title:
       
    88         return m_session->metaData(Phonon::TitleMetaData);
       
    89     case QtMedia::Date:
       
    90         return m_session->metaData(Phonon::DateMetaData);
       
    91     case QtMedia::TrackNumber:
       
    92         return m_session->metaData(Phonon::TracknumberMetaData);
       
    93     case QtMedia::Description:
       
    94         return m_session->metaData(Phonon::DescriptionMetaData);
       
    95     default:
       
    96         return QVariant();
       
    97     }
       
    98 }
       
    99 
       
   100 void QPhononMetaDataProvider::setMetaData(QtMedia::MetaData key, QVariant const &value)
       
   101 {
       
   102     Q_UNUSED(key);
       
   103     Q_UNUSED(value);
       
   104 }
       
   105 
       
   106 QList<QtMedia::MetaData> QPhononMetaDataProvider::availableMetaData() const
       
   107 {
       
   108     QList<QtMedia::MetaData> res;
       
   109     QMap<QString,QString> metaData = m_session->metaData();
       
   110     QMapIterator<QString, QString> i(metaData);
       
   111      while (i.hasNext()) {
       
   112          i.next();
       
   113          QtMedia::MetaData tag = m_keysMap.value(i.key(), QtMedia::MetaData(-1));
       
   114 
       
   115          if (tag != -1)
       
   116              res.append(tag);
       
   117      }
       
   118 
       
   119      return res;
       
   120 }
       
   121 
       
   122 QVariant QPhononMetaDataProvider::extendedMetaData(const QString &key) const
       
   123 {
       
   124     return m_session->metaData(key);
       
   125 }
       
   126 
       
   127 void QPhononMetaDataProvider::setExtendedMetaData(const QString &key, QVariant const &value)
       
   128 {
       
   129     Q_UNUSED(key);
       
   130     Q_UNUSED(value);
       
   131 }
       
   132 
       
   133 QStringList QPhononMetaDataProvider::availableExtendedMetaData() const
       
   134 {
       
   135     return m_session->metaData().keys();
       
   136 }
       
   137 
       
   138 void QPhononMetaDataProvider::updateTags()
       
   139 {
       
   140     emit metaDataChanged();
       
   141     if (isMetaDataAvailable() != m_metaDataAvailable) {
       
   142         m_metaDataAvailable = !m_metaDataAvailable;
       
   143         emit metaDataAvailableChanged(m_metaDataAvailable);
       
   144     }
       
   145 }