C++ MetaData::artist方法代码示例

void
ShareDialog::setSong( const MetaData& metaData )
{
    m_metaData = metaData;

    ui.recommendTypeBox->setItemText( 0, tr( "Artist: %1" ).arg( metaData.artist() ) );
    ui.recommendTypeBox->setItemText( 1, tr( "Track: %1 - %2" ).arg( metaData.artist() ).arg( metaData.track() ) );

    if ( ui.recommendTypeBox->count() == 2 )
        ui.recommendTypeBox->addItem( tr( "Album: %1 - %2" ).arg( metaData.artist() ).arg( metaData.album() ) );
    else
        ui.recommendTypeBox->setItemText( 2, tr( "Album: %1 - %2" ).arg( metaData.artist() ).arg( metaData.album() ) );
}

void MainWindow::onPlayerStateChanged(Phonon::State newState, Phonon::State oldState)
{
    Q_UNUSED(oldState);

    const MetaData metadata = m_currentMetaData;

    QString playing;
    if (metadata.title().isEmpty()) {
        playing = QFileInfo(metadata.fileName()).fileName();
    } else {
        playing = metadata.title();
    }
    if (!metadata.artist().isEmpty()) {
        playing = metadata.artist() + QLatin1String(" - ") + playing;
    }

    switch (newState) {
    case Phonon::PlayingState:
        m_ui->playPauseButton->setIcon(QIcon(QLatin1String(":/icons/pause")));
        ActionManager::instance()->action(QStringLiteral("PlayerPlayPause"))->setIcon(QIcon(QLatin1String(":/icons/pause")));
        m_ui->stopButton->setEnabled(true);
        ActionManager::instance()->action(QStringLiteral("PlayerStop"))->setEnabled(true);
        m_ui->trackTitleLabel->setText(playing);
        m_ui->playbackTimeLabel->setText(QLatin1String("00:00:00"));
        break;
    case Phonon::PausedState:
        m_ui->playPauseButton->setIcon(QIcon(QLatin1String(":/icons/start")));
        ActionManager::instance()->action(QStringLiteral("PlayerPlayPause"))->setIcon(QIcon(QLatin1String(":/icons/start")));
        m_ui->stopButton->setEnabled(true);
        ActionManager::instance()->action(QStringLiteral("PlayerStop"))->setEnabled(true);
        m_ui->trackTitleLabel->setText(tr("%1 [paused]").arg(m_ui->trackTitleLabel->text()));
        break;
    case Phonon::StoppedState:
        m_ui->playPauseButton->setIcon(QIcon(QLatin1String(":/icons/start")));
        ActionManager::instance()->action(QStringLiteral("PlayerPlayPause"))->setIcon(QIcon(QLatin1String(":/icons/start")));
        m_ui->stopButton->setEnabled(false);
        ActionManager::instance()->action(QStringLiteral("PlayerStop"))->setEnabled(false);
        m_ui->trackTitleLabel->setText(tr("Player is stopped"));
        m_ui->playbackTimeLabel->setText(tr("Stopped"));
        break;
    case Phonon::ErrorState:
        m_ui->statusBar->showMessage(Player::instance()->errorString(), 5000);
        break;
    case Phonon::LoadingState:
        //todo
        break;
    case Phonon::BufferingState:
        //todo
        break;
    }
}

 QVariantMap toDBus(const MetaData &md) const {
     QVariantMap map;
     map["mpris:trackid"] = QVariant::fromValue(QDBusObjectPath(dbusTrackId(md.mrl())));
     map["mpris:length"] = 1000LL*(qint64)md.duration();
     map["xesam:url"] = md.mrl().toString();
     map["xesam:title"] = md.title().isEmpty() ? engine->mediaInfo()->name() : md.title();
     if (!md.album().isEmpty())
         map["xesam:album"] = md.album();
     if (!md.artist().isEmpty())
         map["xesam:artist"] = QStringList(md.artist());
     if (!md.genre().isEmpty())
         map["xesam:genre"] = QStringList(md.genre());
     return map;
 }

void MainWindow::showMetadataEditor()
{
    QPointer<MetadataEditor> editor(new MetadataEditor());
    const QModelIndex currentIndex = m_ui->playlistView->currentIndex();
    const MetaData metaData = Player::instance()->playlist()->track(currentIndex.row());
    editor->setMetaData(metaData);

    int result = editor->exec();
    if (result == QDialog::Rejected) {
        if (editor) {
            editor->deleteLater();
        }
        return;
    }

    if (!editor) {
        return;
    }

    const MetaData newMetaData = editor->metaData();
    TagLib::FileRef f(newMetaData.fileName().toLocal8Bit().constData());
//     // FileRef::isNull() is not enough sometimes. Let's check the tag() too...
    if (f.isNull() || !f.tag()) {
        return;
    }

    f.tag()->setTrack(newMetaData.trackNumber());
    f.tag()->setArtist(newMetaData.artist().toLocal8Bit().constData());
    f.tag()->setAlbum(newMetaData.album().toLocal8Bit().constData());
    f.tag()->setTitle(newMetaData.title().toLocal8Bit().constData());
    f.tag()->setYear(newMetaData.year());
    f.tag()->setGenre(newMetaData.genre().toLocal8Bit().constData());
    f.save();

    Player::instance()->playlist()->setTrack(currentIndex.row(), newMetaData);
    TaskManager::instance()->rebuildCollections(newMetaData.fileName());

    delete editor;
}