C++ MusicMetadata::Title方法代码示例

void Ripper::switchTitlesAndArtists()
{
    if (!m_compilationCheck->GetBooleanCheckState())
        return;

    MusicMetadata *data;

    // Switch title and artist for each track
    QString tmp;
    if (m_tracks->size() > 0)
    {
        for (int track = 0; track < m_tracks->size(); ++track)
        {
            data = m_tracks->at(track)->metadata;

            if (data)
            {
                tmp = data->Artist();
                data->setArtist(data->Title());
                data->setTitle(tmp);
            }
        }

        updateTrackList();
    }
}

void Ripper::updateTrackList(void)
{
    if (m_tracks->isEmpty())
        return;

    if (m_trackList)
    {
        m_trackList->Reset();

        int i;
        for (i = 0; i < (int)m_tracks->size(); i++)
        {
            if (i >= m_tracks->size())
                break;

            RipTrack *track = m_tracks->at(i);
            MusicMetadata *metadata = track->metadata;

            MythUIButtonListItem *item = new MythUIButtonListItem(m_trackList,"");

            item->setCheckable(true);

            item->SetData(qVariantFromValue(track));

            if (track->isNew)
                item->DisplayState("new", "yes");
            else
                item->DisplayState("new", "no");

            if (track->active)
                item->setChecked(MythUIButtonListItem::FullChecked);
            else
                item->setChecked(MythUIButtonListItem::NotChecked);

            item->SetText(QString::number(metadata->Track()), "track");
            item->SetText(metadata->Title(), "title");
            item->SetText(metadata->Artist(), "artist");

            int length = track->length / 1000;
            if (length > 0)
            {
                int min, sec;
                min = length / 60;
                sec = length % 60;
                QString s;
                s.sprintf("%02d:%02d", min, sec);
                item->SetText(s, "length");
            }
            else
                item->SetText("", "length");

//             if (i == m_currentTrack)
//                 m_trackList->SetItemCurrent(i);
        }
    }
}

void ImportMusicDialog::fillWidgets()
{
    if (!m_tracks->empty())
    {
        // update current
        //: %1 is the current track,
        //: %2 is the number of tracks
        m_currentText->SetText(tr("%1 of %2", "Current track position")
                .arg(m_currentTrack + 1).arg(m_tracks->size()));

        MusicMetadata *meta = m_tracks->at(m_currentTrack)->metadata;
        m_filenameText->SetText(meta->Filename());
        m_compilationCheck->SetCheckState(meta->Compilation());
        m_compartistText->SetText(meta->CompilationArtist());
        m_artistText->SetText(meta->Artist());
        m_albumText->SetText(meta->Album());
        m_titleText->SetText(meta->Title());
        m_genreText->SetText(meta->Genre());
        m_yearText->SetText(QString::number(meta->Year()));
        m_trackText->SetText(QString::number(meta->Track()));
        if (m_tracks->at(m_currentTrack)->isNewTune)
        {
            m_coverartButton->SetVisible(false);
            m_statusText->SetText(tr("New File"));
        }
        else
        {
            m_coverartButton->SetVisible(true);
            m_statusText->SetText(tr("Already in Database"));
        }
    }
    else
    {
        // update current
        m_currentText->SetText(tr("Not found"));
        m_filenameText->Reset();
        m_compilationCheck->SetCheckState(false);
        m_compartistText->Reset();
        m_artistText->Reset();
        m_albumText->Reset();
        m_titleText->Reset();
        m_genreText->Reset();
        m_yearText->Reset();
        m_trackText->Reset();
        m_statusText->Reset();
        m_coverartButton->SetVisible(false);
    }
}

bool Ripper::deleteExistingTrack(RipTrack *track)
{
    if (!track)
        return false;

    MusicMetadata *metadata = track->metadata;

    if (!metadata)
        return false;

    QString artist = metadata->Artist();
    QString album = metadata->Album();
    QString title = metadata->Title();

    MSqlQuery query(MSqlQuery::InitCon());
    QString queryString("SELECT song_id, "
            "CONCAT_WS('/', music_directories.path, music_songs.filename) AS filename "
            "FROM music_songs "
            "LEFT JOIN music_artists"
            " ON music_songs.artist_id=music_artists.artist_id "
            "LEFT JOIN music_albums"
            " ON music_songs.album_id=music_albums.album_id "
            "LEFT JOIN music_directories "
            " ON music_songs.directory_id=music_directories.directory_id "
            "WHERE artist_name REGEXP \'");
    QString token = artist;
    token.replace(QRegExp("(/|\\\\|:|\'|\\,|\\!|\\(|\\)|\"|\\?|\\|)"),
                  QString("."));

    queryString += token + "\' AND " + "album_name REGEXP \'";
    token = album;
    token.replace(QRegExp("(/|\\\\|:|\'|\\,|\\!|\\(|\\)|\"|\\?|\\|)"),
                  QString("."));
    queryString += token + "\' AND " + "name    REGEXP \'";
    token = title;
    token.replace(QRegExp("(/|\\\\|:|\'|\\,|\\!|\\(|\\)|\"|\\?|\\|)"),
                  QString("."));
    queryString += token + "\' ORDER BY artist_name, album_name,"
                           " name, song_id, filename LIMIT 1";
    query.prepare(queryString);

    if (!query.exec() || !query.isActive())
    {
        MythDB::DBError("Search music database", query);
        return false;
    }

    if (query.next())
    {
        int trackID = query.value(0).toInt();
        QString filename = query.value(1).toString();
        QUrl url(m_musicStorageDir);
        filename = gCoreContext->GenMythURL(url.host(), 0, filename, "Music");

        // delete file
        // FIXME: RemoteFile::DeleteFile will only work with files on the master BE
        if (!RemoteFile::DeleteFile(filename))
        {
            LOG(VB_GENERAL, LOG_NOTICE, QString("Ripper::deleteExistingTrack() "
                                                "Could not delete %1")
                                                .arg(filename));
            return false;
        }

        // remove database entry
        MSqlQuery deleteQuery(MSqlQuery::InitCon());
        deleteQuery.prepare("DELETE FROM music_songs"
                            " WHERE song_id = :SONG_ID");
        deleteQuery.bindValue(":SONG_ID", trackID);
        if (!deleteQuery.exec())
        {
            MythDB::DBError("Delete Track", deleteQuery);
            return false;
        }
        return true;
    }

    return false;
}

void Ripper::ScanFinished()
{
    delete m_scanThread;
    m_scanThread = nullptr;

    m_tracks->clear();

    if (m_decoder)
    {
        MusicMetadata *metadata;
        bool isCompilation = false;

        m_artistName.clear();
        m_albumName.clear();
        m_genreName.clear();
        m_year.clear();

        for (int trackno = 0; trackno < m_decoder->getNumTracks(); trackno++)
        {
            RipTrack *ripTrack = new RipTrack;

            metadata = m_decoder->getMetadata(trackno + 1);
            if (metadata)
            {
                ripTrack->metadata = metadata;
                ripTrack->length = metadata->Length();

                if (metadata->Compilation())
                {
                    isCompilation = true;
                    m_artistName = metadata->CompilationArtist();
                }
                else if (m_artistName.isEmpty())
                {
                    m_artistName = metadata->Artist();
                }

                if (m_albumName.isEmpty())
                    m_albumName = metadata->Album();

                if (m_genreName.isEmpty() && !metadata->Genre().isEmpty())
                    m_genreName = metadata->Genre();

                if (m_year.isEmpty() && metadata->Year() > 0)
                    m_year = QString::number(metadata->Year());

                QString title = metadata->Title();
                ripTrack->isNew = isNewTune(m_artistName, m_albumName, title);

                ripTrack->active = ripTrack->isNew;

                m_tracks->push_back(ripTrack);

            }
            else
                delete ripTrack;
        }

        m_artistEdit->SetText(m_artistName);
        m_albumEdit->SetText(m_albumName);
        m_genreEdit->SetText(m_genreName);
        m_yearEdit->SetText(m_year);
        m_compilationCheck->SetCheckState(isCompilation);

        if (!isCompilation)
            m_switchTitleArtist->SetVisible(false);
        else
            m_switchTitleArtist->SetVisible(true);
    }

    BuildFocusList();
    updateTrackList();

    CloseBusyPopup();
}

void CDRipperThread::run(void)
{
    RunProlog();

    if (m_tracks->size() <= 0)
    {
        RunEpilog();
        return;
    }

    m_totalSectors = 0;
    m_totalSectorsDone = 0;
    for (int trackno = 0; trackno < m_tracks->size(); trackno++)
    {
        m_totalSectors += getSectorCount(m_CDdevice, trackno + 1);
    }

    if (!m_totalSectors)
    {
        RunEpilog();
        return;
    }

    MusicMetadata *track = m_tracks->at(0)->metadata;
    QString tots;

    if (track->Compilation())
    {
        tots = track->CompilationArtist() + " ~ " + track->Album();
    }
    else
    {
        tots = track->Artist() + " ~ " + track->Album();
    }

    QApplication::postEvent(
        m_parent,
        new RipStatusEvent(RipStatusEvent::kOverallTextEvent, tots));
    QApplication::postEvent(
        m_parent,
        new RipStatusEvent(RipStatusEvent::kOverallProgressEvent, 0));
    QApplication::postEvent(
        m_parent,
        new RipStatusEvent(RipStatusEvent::kTrackProgressEvent, 0));

    QString textstatus;
    QString encodertype = gCoreContext->GetSetting("EncoderType");
    bool mp3usevbr = gCoreContext->GetNumSetting("Mp3UseVBR", 0);

    QApplication::postEvent(m_parent,
        new RipStatusEvent(RipStatusEvent::kOverallStartEvent, m_totalSectors));

    if (LCD *lcd = LCD::Get())
    {
        QString lcd_tots = tr("Importing %1").arg(tots);
        QList<LCDTextItem> textItems;
        textItems.append(LCDTextItem(1, ALIGN_CENTERED,
                                         lcd_tots, "Generic", false));
        lcd->switchToGeneric(textItems);
    }

    MusicMetadata *titleTrack = nullptr;
    QString saveDir = GetConfDir() + "/tmp/RipTemp/";
    QString outfile;

    std::unique_ptr<Encoder> encoder;

    for (int trackno = 0; trackno < m_tracks->size(); trackno++)
    {
        if (isCancelled())
            break;

        QApplication::postEvent(
            m_parent,
            new RipStatusEvent(RipStatusEvent::kStatusTextEvent,
                               QString("Track %1 of %2")
                               .arg(trackno + 1).arg(m_tracks->size())));

        QApplication::postEvent(
            m_parent,
            new RipStatusEvent(RipStatusEvent::kTrackProgressEvent, 0));

        track = m_tracks->at(trackno)->metadata;

        if (track)
        {
            textstatus = track->Title();
            QApplication::postEvent(
                m_parent,
                new RipStatusEvent(
                    RipStatusEvent::kTrackTextEvent, textstatus));
            QApplication::postEvent(
                m_parent,
                new RipStatusEvent(RipStatusEvent::kTrackProgressEvent, 0));
            QApplication::postEvent(
                m_parent,
                new RipStatusEvent(RipStatusEvent::kTrackPercentEvent, 0));

            // do we need to start a new file?
            if (m_tracks->at(trackno)->active)
//.........这里部分代码省略.........

//.........这里部分代码省略.........
                    {
                        album_order = Ialbum->second * 1000;
                    }
                    album_order += mdata->Track();

                    songMap.insert(album_order, *it);
                }
            }

            // copy the shuffled tracks to the shuffled song list
            QMultiMap<int, MusicMetadata*>::const_iterator i = songMap.constBegin();
            while (i != songMap.constEnd())
            {
                m_shuffledSongs.append(i.value());
                ++i;
            }

            break;
        }

        case MusicPlayer::SHUFFLE_ARTIST:
        {
            // "intellegent/album" order

            typedef map<QString, uint32_t> ArtistMap;
            ArtistMap                      artist_map;
            ArtistMap::iterator            Iartist;
            QString                        artist;

            // pre-fill the album-map with the album name.
            // This allows us to do artist mode in artist order
            SongList::const_iterator it = m_songs.begin();
            for (; it != m_songs.end(); ++it)
            {
                MusicMetadata *mdata = (*it);
                artist = mdata->Artist() + " ~ " + mdata->Title();
                if ((Iartist = artist_map.find(artist)) == artist_map.end())
                    artist_map.insert(ArtistMap::value_type(artist,0));
            }

            // populate the sort id into the artist map
            uint32_t artist_count = 1;
            for (Iartist = artist_map.begin(); Iartist != artist_map.end(); ++Iartist)
            {
                Iartist->second = artist_count;
                artist_count++;
            }

            // create a map of tracks sorted by the computed order
            QMultiMap<int, MusicMetadata*> songMap;
            it = m_songs.begin();
            for (; it != m_songs.end(); ++it)
            {
                uint32_t artist_order;
                MusicMetadata *mdata = (*it);
                if (mdata)
                {
                    artist = mdata->Artist() + " ~ " + mdata->Title();
                    if ((Iartist = artist_map.find(artist)) == artist_map.end())
                    {
                        // we didn't find this artist in the map,
                        // yet we pre-loaded them all. we are broken,
                        // but we just set the track order to 1, since there
                        // is no real point in reporting an error
                        artist_order = 1;
                    }
                    else
                    {
                        artist_order = Iartist->second * 1000;
                    }
                    artist_order += mdata->Track();

                    songMap.insert(artist_order, *it);
                }
            }

            // copy the shuffled tracks to the shuffled song list
            QMultiMap<int, MusicMetadata*>::const_iterator i = songMap.constBegin();
            while (i != songMap.constEnd())
            {
                m_shuffledSongs.append(i.value());
                ++i;
            }

            break;
        }

        default:
        {
            // copy the raw song list to the shuffled track list
            SongList::const_iterator it = m_songs.begin();
            for (; it != m_songs.end(); ++it)
            {
                m_shuffledSongs.append(*it);
            }

            break;
        }
    }
}