C++ TrackPointer::getArtist方法代码示例

void DlgTrackInfo::populateFields(TrackPointer pTrack) {
    setWindowTitle(pTrack->getTitle());

    // Editable fields
    txtTrackName->setText(pTrack->getTitle());
    txtArtist->setText(pTrack->getArtist());
    txtAlbum->setText(pTrack->getAlbum());
    txtAlbumArtist->setText(pTrack->getAlbumArtist());
    txtGenre->setText(pTrack->getGenre());
    txtComposer->setText(pTrack->getComposer());
    txtGrouping->setText(pTrack->getGrouping());
    txtYear->setText(pTrack->getYear());
    txtTrackNumber->setText(pTrack->getTrackNumber());
    txtComment->setText(pTrack->getComment());
    spinBpm->setValue(pTrack->getBpm());
    // Non-editable fields
    txtDuration->setText(pTrack->getDurationStr());
    txtFilepath->setText(pTrack->getFilename());
    txtLocation->setText(pTrack->getLocation());
    txtType->setText(pTrack->getType());
    txtBitrate->setText(QString(pTrack->getBitrateStr()) + (" ") + tr("kbps"));
    txtBpm->setText(pTrack->getBpmStr());
    txtKey->setText(pTrack->getKeyText());
    BeatsPointer pBeats = pTrack->getBeats();
    bool beatsSupportsSet = !pBeats || (pBeats->getCapabilities() & Beats::BEATSCAP_SET);
    bool enableBpmEditing = !pTrack->hasBpmLock() && beatsSupportsSet;
    spinBpm->setEnabled(enableBpmEditing);
    bpmTap->setEnabled(enableBpmEditing);
    bpmDouble->setEnabled(enableBpmEditing);
    bpmHalve->setEnabled(enableBpmEditing);
    bpmTwoThirds->setEnabled(enableBpmEditing);
    bpmThreeFourth->setEnabled(enableBpmEditing);
}

bool EngineShoutcast::metaDataHasChanged() {
    TrackPointer pTrack;

    if (m_iMetaDataLife < 16) {
        m_iMetaDataLife++;
        return false;
    }

    m_iMetaDataLife = 0;

    pTrack = PlayerInfo::Instance().getCurrentPlayingTrack();
    if (!pTrack)
        return false;

    if (m_pMetaData) {
        if ((pTrack->getId() == -1) || (m_pMetaData->getId() == -1)) {
            if ((pTrack->getArtist() == m_pMetaData->getArtist()) &&
                (pTrack->getTitle() == m_pMetaData->getArtist())) {
                return false;
            }
        } else if (pTrack->getId() == m_pMetaData->getId()) {
            return false;
        }
    }
    m_pMetaData = pTrack;
    return true;
}

bool EngineRecord::metaDataHasChanged()
{
    if (m_iMetaDataLife < kMetaDataLifeTimeout) {
        m_iMetaDataLife++;
        return false;
    }
    m_iMetaDataLife = 0;

    TrackPointer pTrack = PlayerInfo::instance().getCurrentPlayingTrack();
    if ( !pTrack )
        return false;

    if ( m_pCurrentTrack ) {
        if ((pTrack->getId() == -1) || (m_pCurrentTrack->getId() == -1)) {
            if ((pTrack->getArtist() == m_pCurrentTrack->getArtist()) &&
                (pTrack->getTitle() == m_pCurrentTrack->getArtist())) {
                return false;
            }
        }
        else if (pTrack->getId() == m_pCurrentTrack->getId()) {
            return false;
        }
    }

    m_pCurrentTrack = pTrack;
    return true;
}

bool EngineShoutcast::metaDataHasChanged() {
    TrackPointer pTrack;

    // TODO(rryan): This is latency and buffer size dependent. Should be based
    // on time.
    if (m_iMetaDataLife < 16) {
        m_iMetaDataLife++;
        return false;
    }

    m_iMetaDataLife = 0;

    pTrack = PlayerInfo::instance().getCurrentPlayingTrack();
    if (!pTrack)
        return false;

    if (m_pMetaData) {
        if ((pTrack->getId() == -1) || (m_pMetaData->getId() == -1)) {
            if ((pTrack->getArtist() == m_pMetaData->getArtist()) &&
                (pTrack->getTitle() == m_pMetaData->getArtist())) {
                return false;
            }
        } else if (pTrack->getId() == m_pMetaData->getId()) {
            return false;
        }
    }
    m_pMetaData = pTrack;
    return true;
}

void DlgTagFetcher::addTrack(const TrackPointer track, int resultIndex,
                             QTreeWidget* parent) const {
    QStringList values;
    values << track->getTrackNumber() << track->getYear() << track->getTitle()
           << track->getArtist() << track->getAlbum();

    QTreeWidgetItem* item = new QTreeWidgetItem(parent, values);
    item->setData(0, Qt::UserRole, resultIndex);
    item->setData(0, Qt::TextAlignmentRole, Qt::AlignRight);
}

bool EngineRecord::metaDataHasChanged()
{
    //Originally, m_iMetaDataLife was used so that getCurrentPlayingTrack was called
    //less often, because it was calculating it.
    //Nowadays (since Mixxx 1.11), it just accesses a map on a thread safe method.
    TrackPointer pTrack = PlayerInfo::instance().getCurrentPlayingTrack();
    if (!pTrack) {
        m_iMetaDataLife = kMetaDataLifeTimeout;
        return false;
    }

    //The counter is kept so that changes back and forth with the faders/crossfader
    //(like in scratching or other effects) are not counted as multiple track changes
    //in the cue file. A better solution could consist of a signal from PlayerInfo and
    //a slot that decides if the changes received are valid or are to be ignored once
    //the next process call comes. This could also help improve the time written in the CUE.
    if (m_iMetaDataLife < kMetaDataLifeTimeout) {
        m_iMetaDataLife++;
        return false;
    }
    m_iMetaDataLife = 0;

    if (m_pCurrentTrack) {
        if (!pTrack->getId().isValid() || !m_pCurrentTrack->getId().isValid()) {
            if ((pTrack->getArtist() == m_pCurrentTrack->getArtist()) &&
                (pTrack->getTitle() == m_pCurrentTrack->getArtist())) {
                return false;
            }
        }
        else if (pTrack->getId() == m_pCurrentTrack->getId()) {
            return false;
        }
    }

    m_pCurrentTrack = pTrack;
    return true;
}

void BrowseThread::populateModel() {
    m_path_mutex.lock();
    MDir thisPath = m_path;
    BrowseTableModel* thisModelObserver = m_model_observer;
    m_path_mutex.unlock();

    // Refresh the name filters in case we loaded new SoundSource plugins.
    QStringList nameFilters(SoundSourceProxy::getSupportedFileNamePatterns());

    QDirIterator fileIt(thisPath.dir().absolutePath(), nameFilters,
                        QDir::Files | QDir::NoDotAndDotDot);

    // remove all rows
    // This is a blocking operation
    // see signal/slot connection in BrowseTableModel
    emit(clearModel(thisModelObserver));

    QList< QList<QStandardItem*> > rows;

    int row = 0;
    // Iterate over the files
    while (fileIt.hasNext()) {
        // If a user quickly jumps through the folders
        // the current task becomes "dirty"
        m_path_mutex.lock();
        MDir newPath = m_path;
        m_path_mutex.unlock();

        if (thisPath.dir() != newPath.dir()) {
            qDebug() << "Abort populateModel()";
            return populateModel();
        }

        QList<QStandardItem*> row_data;

        QStandardItem* item = new QStandardItem("0");
        item->setData("0", Qt::UserRole);
        row_data.insert(COLUMN_PREVIEW, item);

        const QString filepath = fileIt.next();
        {
            const TrackPointer pTrack =
                    SoundSourceProxy::importTemporaryTrack(
                            filepath,
                            thisPath.token());

            item = new QStandardItem(pTrack->getFileName());
            item->setToolTip(item->text());
            item->setData(item->text(), Qt::UserRole);
            row_data.insert(COLUMN_FILENAME, item);

            item = new QStandardItem(pTrack->getArtist());
            item->setToolTip(item->text());
            item->setData(item->text(), Qt::UserRole);
            row_data.insert(COLUMN_ARTIST, item);

            item = new QStandardItem(pTrack->getTitle());
            item->setToolTip(item->text());
            item->setData(item->text(), Qt::UserRole);
            row_data.insert(COLUMN_TITLE, item);

            item = new QStandardItem(pTrack->getAlbum());
            item->setToolTip(item->text());
            item->setData(item->text(), Qt::UserRole);
            row_data.insert(COLUMN_ALBUM, item);

            item = new QStandardItem(pTrack->getAlbumArtist());
            item->setToolTip(item->text());
            item->setData(item->text(), Qt::UserRole);
            row_data.insert(COLUMN_ALBUMARTIST, item);

            item = new QStandardItem(pTrack->getTrackNumber());
            item->setToolTip(item->text());
            item->setData(item->text().toInt(), Qt::UserRole);
            row_data.insert(COLUMN_TRACK_NUMBER, item);

            const QString year(pTrack->getYear());
            item = new YearItem(year);
            item->setToolTip(year);
            // The year column is sorted according to the numeric calendar year
            item->setData(mixxx::TrackMetadata::parseCalendarYear(year), Qt::UserRole);
            row_data.insert(COLUMN_YEAR, item);

            item = new QStandardItem(pTrack->getGenre());
            item->setToolTip(item->text());
            item->setData(item->text(), Qt::UserRole);
            row_data.insert(COLUMN_GENRE, item);

            item = new QStandardItem(pTrack->getComposer());
            item->setToolTip(item->text());
            item->setData(item->text(), Qt::UserRole);
            row_data.insert(COLUMN_COMPOSER, item);

            item = new QStandardItem(pTrack->getGrouping());
            item->setToolTip(item->text());
            item->setData(item->text(), Qt::UserRole);
            row_data.insert(COLUMN_GROUPING, item);

            item = new QStandardItem(pTrack->getComment());
            item->setToolTip(item->text());
//.........这里部分代码省略.........

void BaseTrackCache::getTrackValueForColumn(TrackPointer pTrack,
                                            int column,
                                            QVariant& trackValue) const {
    if (!pTrack || column < 0) {
        return;
    }

    // TODO(XXX) Qt properties could really help here.
    // TODO(rryan) this is all TrackDAO specific. What about iTunes/RB/etc.?
    if (fieldIndex(ColumnCache::COLUMN_LIBRARYTABLE_ARTIST) == column) {
        trackValue.setValue(pTrack->getArtist());
    } else if (fieldIndex(ColumnCache::COLUMN_LIBRARYTABLE_TITLE) == column) {
        trackValue.setValue(pTrack->getTitle());
    } else if (fieldIndex(ColumnCache::COLUMN_LIBRARYTABLE_ALBUM) == column) {
        trackValue.setValue(pTrack->getAlbum());
    } else if (fieldIndex(ColumnCache::COLUMN_LIBRARYTABLE_ALBUMARTIST) == column) {
        trackValue.setValue(pTrack->getAlbumArtist());
    } else if (fieldIndex(ColumnCache::COLUMN_LIBRARYTABLE_YEAR) == column) {
        trackValue.setValue(pTrack->getYear());
    } else if (fieldIndex(ColumnCache::COLUMN_LIBRARYTABLE_DATETIMEADDED) == column) {
        trackValue.setValue(pTrack->getDateAdded());
    } else if (fieldIndex(ColumnCache::COLUMN_LIBRARYTABLE_GENRE) == column) {
        trackValue.setValue(pTrack->getGenre());
    } else if (fieldIndex(ColumnCache::COLUMN_LIBRARYTABLE_COMPOSER) == column) {
        trackValue.setValue(pTrack->getComposer());
    } else if (fieldIndex(ColumnCache::COLUMN_LIBRARYTABLE_GROUPING) == column) {
        trackValue.setValue(pTrack->getGrouping());
    } else if (fieldIndex(ColumnCache::COLUMN_LIBRARYTABLE_FILETYPE) == column) {
        trackValue.setValue(pTrack->getType());
    } else if (fieldIndex(ColumnCache::COLUMN_LIBRARYTABLE_TRACKNUMBER) == column) {
        trackValue.setValue(pTrack->getTrackNumber());
    } else if (fieldIndex(ColumnCache::COLUMN_LIBRARYTABLE_LOCATION) == column) {
        trackValue.setValue(QDir::toNativeSeparators(pTrack->getLocation()));
    } else if (fieldIndex(ColumnCache::COLUMN_LIBRARYTABLE_COMMENT) == column) {
        trackValue.setValue(pTrack->getComment());
    } else if (fieldIndex(ColumnCache::COLUMN_LIBRARYTABLE_DURATION) == column) {
        trackValue.setValue(pTrack->getDuration());
    } else if (fieldIndex(ColumnCache::COLUMN_LIBRARYTABLE_BITRATE) == column) {
        trackValue.setValue(pTrack->getBitrate());
    } else if (fieldIndex(ColumnCache::COLUMN_LIBRARYTABLE_BPM) == column) {
        trackValue.setValue(pTrack->getBpm());
    } else if (fieldIndex(ColumnCache::COLUMN_LIBRARYTABLE_REPLAYGAIN) == column) {
        trackValue.setValue(pTrack->getReplayGain().getRatio());
    } else if (fieldIndex(ColumnCache::COLUMN_LIBRARYTABLE_PLAYED) == column) {
        trackValue.setValue(pTrack->getPlayCounter().isPlayed());
    } else if (fieldIndex(ColumnCache::COLUMN_LIBRARYTABLE_TIMESPLAYED) == column) {
        trackValue.setValue(pTrack->getPlayCounter().getTimesPlayed());
    } else if (fieldIndex(ColumnCache::COLUMN_LIBRARYTABLE_RATING) == column) {
        trackValue.setValue(pTrack->getRating());
    } else if (fieldIndex(ColumnCache::COLUMN_LIBRARYTABLE_KEY) == column) {
        trackValue.setValue(pTrack->getKeyText());
    } else if (fieldIndex(ColumnCache::COLUMN_LIBRARYTABLE_KEY_ID) == column) {
        trackValue.setValue(static_cast<int>(pTrack->getKey()));
    } else if (fieldIndex(ColumnCache::COLUMN_LIBRARYTABLE_BPM_LOCK) == column) {
        trackValue.setValue(pTrack->isBpmLocked());
    } else if (fieldIndex(ColumnCache::COLUMN_LIBRARYTABLE_COVERART_LOCATION) == column) {
        trackValue.setValue(pTrack->getCoverInfo().coverLocation);
    } else if (fieldIndex(ColumnCache::COLUMN_LIBRARYTABLE_COVERART_HASH) == column ||
               fieldIndex(ColumnCache::COLUMN_LIBRARYTABLE_COVERART) == column) {
        // For sorting, we give COLUMN_LIBRARYTABLE_COVERART the same value as
        // the cover hash.
        trackValue.setValue(pTrack->getCoverHash());
    } else if (fieldIndex(ColumnCache::COLUMN_LIBRARYTABLE_COVERART_SOURCE) == column) {
        trackValue.setValue(static_cast<int>(pTrack->getCoverInfo().source));
    } else if (fieldIndex(ColumnCache::COLUMN_LIBRARYTABLE_COVERART_TYPE) == column) {
        trackValue.setValue(static_cast<int>(pTrack->getCoverInfo().type));
    }
}