C++ TrackPtr::filesize方法代码示例

void
IpodCopyTracksJob::run()
{
    if( !m_coll )
        return;  // destructed behind our back
    float totalSafeCapacity = m_coll.data()->totalCapacity() - m_coll.data()->capacityMargin();
    QByteArray mountPoint = QFile::encodeName( m_coll.data()->mountPoint() );
    QString collectionPrettyName = m_coll.data()->prettyName();

    int trackCount = m_sources.size();
    QString operationText;
    if( m_transcodingConfig.isJustCopy() )
        operationText = i18np( "Transferring one track to %2", "Transferring %1 tracks to %2",
                               trackCount, collectionPrettyName );
    else
        operationText = i18np( "Transcoding one track to %2", "Transcoding %1 tracks to %2",
                               trackCount, collectionPrettyName );
    Amarok::Components::logger()->newProgressOperation( this, operationText, trackCount,
                                                        this, SLOT(abort()) );
    itdb_start_sync( m_coll.data()->m_itdb );

    QMapIterator<Meta::TrackPtr, KUrl> it( m_sources );
    while( it.hasNext() )
    {
        if( m_aborted || !m_coll )
            break;

        it.next();
        Meta::TrackPtr track = it.key();
        KUrl sourceUrl = it.value();
        emit startDuplicateTrackSearch( track );

        // wait for searching to finish:
        m_searchingForDuplicates.acquire( 1 );
        if( m_duplicateTrack )
        {
            trackProcessed( Duplicate, track, m_duplicateTrack );
            continue;
        }

        if( !m_coll )
            break;  // destructed behind our back
        if( m_transcodingConfig.isJustCopy()  // if not copying, we catch big files later
            && track->filesize() > totalSafeCapacity - m_coll.data()->usedCapacity() )
        {
            // this is a best effort check, we do one definite one after the file is copied
            debug() << "Refusing to copy" << track->prettyUrl() << "to iPod: there are only"
                    << totalSafeCapacity - m_coll.data()->usedCapacity() << "free bytes (not"
                    << "counting a safety margin) on iPod and track has" << track->filesize()
                    << "bytes.";
            trackProcessed( ExceededingSafeCapacity, track );
            continue;
        }
        QString fileExtension;
        if( m_transcodingConfig.isJustCopy() )
            fileExtension = track->type();
        else
            fileExtension = Amarok::Components::transcodingController()->format(
                            m_transcodingConfig.encoder() )->fileExtension();
        if( !m_coll.data()->supportedFormats().contains( fileExtension ) )
        {
            m_notPlayableFormats.insert( fileExtension );
            trackProcessed( NotPlayable, track );
            continue;
        }
        QByteArray fakeSrcName( "filename." );  // only for file extension
        fakeSrcName.append( QFile::encodeName( fileExtension ) );

        /* determine destination filename; we cannot use ipodTrack because as it has no itdb
         * (and thus mountpoint) set */
        GError *error = 0;
        gchar *destFilename = itdb_cp_get_dest_filename( 0, mountPoint, fakeSrcName, &error );
        if( error )
        {
            warning() << "Cannot construct iPod track filename:" << error->message;
            g_error_free( error );
            error = 0;
        }
        if( !destFilename )
        {
            trackProcessed( InternalError, track );
            continue;
        }

        // start the physical copying
        KUrl destUrl = KUrl( QFile::decodeName( destFilename ) );
        emit startCopyOrTranscodeJob( sourceUrl, destUrl );

        // wait for copying to finish:
        m_copying.acquire( 1 );
        /* fsync so that progress bar gives correct info and user doesnt remove the iPod
         * prematurely */
        QFile destFile( QFile::decodeName( destFilename ) );
        if( !destFile.exists() )
        {
            debug() << destFile.fileName() << "does not exist even though we thought we copied it to iPod";
            trackProcessed( CopyingFailed, track );
            continue;
        }
        if( !m_coll )
//.........这里部分代码省略.........

QString TrackOrganizer::buildDestination(const QString& format, const Meta::TrackPtr& track) const
{
    // get hold of the shared pointers
    Meta::AlbumPtr album = track->album();
    Meta::ArtistPtr artist = track->artist();
    Meta::ComposerPtr composer = track->composer();
    Meta::ArtistPtr albumArtist = album ? album->albumArtist() : Meta::ArtistPtr();
    Meta::GenrePtr genre = track->genre();
    Meta::YearPtr year = track->year();

    bool isCompilation = album && album->isCompilation();

    QMap<QString, QString> args;
    QString strArtist = artist ? artist->name() : QString();
    QString strAlbumArtist = isCompilation ? i18n( "Various Artists" ) :
        ( albumArtist ? albumArtist->name() : strArtist );

    args["theartist"] = strArtist;
    args["thealbumartist"] = strAlbumArtist;

    if( m_postfixThe )
    {
        Amarok::manipulateThe( strArtist, true );
        Amarok::manipulateThe( strAlbumArtist, true );
    }

    if ( track->trackNumber() )
    {
        QString trackNum = QString("%1").arg( track->trackNumber(), 2, 10, QChar('0') );
        args["track"] = trackNum;
    }
    args["title"] = track->name();
    args["artist"] = strArtist;
    args["composer"] = composer ? composer->name() : QString();
    // if year == 0 then we don't want include it
    QString strYear = year ? year->name() : QString();
    args["year"] = strYear.localeAwareCompare( "0" ) == 0 ? QString() : strYear;
    args["album"] = track->album() ? track->album()->name() : QString();
    args["albumartist"] = strAlbumArtist;
    args["comment"] = track->comment();
    args["genre"] = genre ? genre->name() : QString();
    if( m_targetFileExtension.isEmpty() )
        args["filetype"] = track->type();
    else
        args["filetype"] = m_targetFileExtension;
    QString strFolder = QFileInfo( track->playableUrl().toLocalFile() ).path();
    strFolder = strFolder.mid( commonPrefixLength( m_folderPrefix, strFolder ) );
    args["folder"] = strFolder;
    args["initial"] = strAlbumArtist.mid( 0, 1 ).toUpper(); //artists starting with The are already handled above
    if( track->discNumber() )
        args["discnumber"] = QString::number( track->discNumber() );
    args["collectionroot"] = m_folderPrefix;

    // some additional properties not supported by organize dialog.
    args["rating"] = track->statistics()->rating();
    args["filesize"] = track->filesize();
    args["length"] = track->length() / 1000;

    // Fill up default empty values for StringX formater
    // TODO make this values changeable by user
    args["default_album"]           = i18n( "Unknown album" );
    args["default_albumartist"]     = i18n( "Unknown artist" );
    args["default_artist"]          = args["albumartist"];
    args["default_thealbumartist"]  = args["albumartist"];
    args["default_theartist"]       = args["albumartist"];
    args["default_comment"]         = i18n( "No comments" );
    args["default_composer"]        = i18n( "Unknown composer" );
    args["default_discnumber"]      = i18n( "Unknown disc number" );
    args["default_genre"]           = i18n( "Unknown genre" );
    args["default_title"]           = i18n( "Unknown title" );
    args["default_year"]            = i18n( "Unknown year" );

    foreach( const QString &key, args.keys() )
        if( key != "collectionroot" && key != "folder" )
            args[key] = args[key].replace( '/', '-' );

    Amarok::QStringx formatx( format );
    QString result = formatx.namedOptArgs( args );
    return cleanPath( result );
}

QVariant Meta::valueForField( qint64 field, Meta::TrackPtr track )
{
    if( !track )
        return QVariant();

    switch( field )
    {
    case 0:
    {
        // that is the simple search for MetaQueryWidget
        QSet<QString> allInfos;
        allInfos += track->playableUrl().path()
            += track->name()
            += track->comment();
        if( track->artist() )
            allInfos += track->artist()->name();
        if( track->album() )
            allInfos += track->album()->name();
        if( track->genre() )
            allInfos += track->genre()->name();

        return QVariant( allInfos.toList() );
    }
    case Meta::valUrl:         return track->playableUrl().path();
    case Meta::valTitle:       return track->name();
    case Meta::valArtist:      return track->artist() ?
                               QVariant(track->artist()->name()) : QVariant();
    case Meta::valAlbum:       return track->album() ?
                               QVariant(track->album()->name()) : QVariant();
    case Meta::valGenre:       return track->genre() ?
                               QVariant(track->genre()->name()) : QVariant();
    case Meta::valComposer:    return track->composer() ?
                               QVariant(track->composer()->name()) : QVariant();
    case Meta::valYear:        return track->year() ?
                               QVariant(track->year()->name().toInt()) : QVariant();
    case Meta::valComment:     return track->comment();
    case Meta::valTrackNr:     return track->trackNumber();
    case Meta::valDiscNr:      return track->discNumber();
    case Meta::valBpm:         return track->bpm();
    case Meta::valLength:      return track->length();
    case Meta::valBitrate:     return track->bitrate();
    case Meta::valSamplerate:  return track->sampleRate();
    case Meta::valFilesize:    return track->filesize();
    case Meta::valFormat:      return int(Amarok::FileTypeSupport::fileType(track->type()));

    case Meta::valCreateDate:  return track->createDate();
    case Meta::valScore:       return track->statistics()->score();
    case Meta::valRating:      return track->statistics()->rating();
    case Meta::valFirstPlayed: return track->statistics()->firstPlayed();
    case Meta::valLastPlayed:  return track->statistics()->lastPlayed();
    case Meta::valPlaycount:   return track->statistics()->playCount();
    case Meta::valUniqueId:    return track->uidUrl();

    // todo
    case Meta::valTrackGain:   return "track gain";
    case Meta::valTrackGainPeak:   return "track gain peak";
    case Meta::valAlbumGain:   return "album gain";
    case Meta::valAlbumGainPeak:   return "album gain peak";

    case Meta::valAlbumArtist: return (track->album() && track->album()->albumArtist()) ?
                               QVariant(track->album()->albumArtist()->name()) : QVariant();
    case Meta::valLabel:
      {
          Meta::LabelList labels = track->labels();
          QStringList strLabels;
          foreach( Meta::LabelPtr label, labels )
              strLabels.append( label->name() );
          return QVariant( strLabels );
      }
    case Meta::valModified:  return track->modifyDate();
    default: return QVariant();
    }
}