C++ query_ptr::results方法代码示例

void
AudioEngine::playItem( Tomahawk::playlistinterface_ptr playlist, const Tomahawk::query_ptr& query )
{
    if ( query->resolvingFinished() )
    {
        if ( query->numResults() && query->results().first()->isOnline() )
        {
            playItem( playlist, query->results().first() );
            return;
        }

        JobStatusView::instance()->model()->addJob(
            new ErrorStatusMessage( tr( "Sorry, Tomahawk couldn't find the track '%1' by %2" ).arg( query->track() ).arg( query->artist() ), 15 ) );

        if ( isStopped() )
            emit stopped(); // we do this so the original caller knows we couldn't find this track
    }
    else
    {
        Pipeline::instance()->resolve( query );

        NewClosure( query.data(), SIGNAL( resolvingFinished( bool ) ),
                    const_cast<AudioEngine*>(this), SLOT( playItem( Tomahawk::playlistinterface_ptr, Tomahawk::query_ptr ) ), playlist, query );
    }
}

void
ColumnViewPreviewWidget::setQuery( const Tomahawk::query_ptr& query )
{
    if ( !m_query.isNull() )
    {
        disconnect( m_query->track().data(), SIGNAL( updated() ), this, SLOT( onCoverUpdated() ) );
    }

    m_query = query;
    connect( m_query->track().data(), SIGNAL( updated() ), SLOT( onCoverUpdated() ) );

    onCoverUpdated();
    m_cover->setQuery( query );

    setVisible( true );

    m_trackLabel->setText( query->track()->track() );
    m_artistLabel->setArtist( query->track()->artistPtr() );
    m_artistLabel->setMinimumWidth( qMin( m_artistLabel->fontMetrics().width( query->track()->artist() ) +
                                          m_artistLabel->contentsMargins().left() +
                                          m_artistLabel->contentsMargins().right() +
                                          2 * m_artistLabel->lineWidth(),
                                          width() ) );
    m_artistLabel->setElideMode( Qt::ElideRight );
    m_composerValue->setText( query->track()->composer() );

    m_composerValue->setVisible( !query->track()->composerPtr().isNull() );
    m_composerLabel->setVisible( !query->track()->composerPtr().isNull() );

    if ( query->numResults() )
    {
        m_yearValue->setText( QString::number( query->track()->year() ) );
        m_bitrateValue->setText( tr( "%1 kbps" ).arg( query->results().first()->bitrate() ) );
        m_durationValue->setText( TomahawkUtils::timeToString( query->track()->duration() ) );
        m_ageValue->setText( TomahawkUtils::ageToString( QDateTime::fromTime_t( query->results().first()->modificationTime() ) ) );

        m_yearValue->setVisible( query->track()->year() > 0 );
        m_yearLabel->setVisible( query->track()->year() > 0 );
        m_bitrateLabel->setVisible( query->results().first()->bitrate() > 0 );
        m_bitrateValue->setVisible( query->results().first()->bitrate() > 0 );
        m_durationLabel->setVisible( query->track()->duration() > 0 );
        m_durationValue->setVisible( query->track()->duration() > 0 );
        m_ageLabel->setVisible( query->results().first()->modificationTime() > 0 );
        m_ageValue->setVisible( query->results().first()->modificationTime() > 0 );
    }
    else
    {
        m_yearLabel->setVisible( false );
        m_yearValue->setVisible( false );
        m_bitrateLabel->setVisible( false );
        m_bitrateValue->setVisible( false );
        m_durationLabel->setVisible( false );
        m_durationValue->setVisible( false );
        m_ageLabel->setVisible( false );
        m_ageValue->setVisible( false );
    }

    setMinimumHeight( sizeHint().height() );
}

Tomahawk::result_ptr
PlaylistInterface::siblingResult( int itemsAway, qint64 rootIndex ) const
{
    qint64 idx = siblingIndex( itemsAway, rootIndex );
    QList< qint64 > safetyCheck;

    // If safetyCheck contains idx, this means the interface keeps returning the same items and we won't discover anything new - abort
    // This can happen in repeat / random mode e.g.
    while ( idx >= 0 && !safetyCheck.contains( idx ) )
    {
        safetyCheck << idx;
        Tomahawk::query_ptr query = queryAt( idx );

        if ( query && query->playable() )
        {
            return query->results().first();
        }

        idx = siblingIndex( itemsAway < 0 ? -1 : 1, idx );
    }

    return Tomahawk::result_ptr();
}

void
MetadataEditor::loadQuery( const Tomahawk::query_ptr& query )
{
    if ( query.isNull() )
        return;

    if ( query->numResults() )
    {
        loadResult( query->results().first() );
        return;
    }

    m_result = Tomahawk::result_ptr();
    m_query = query;
    setEditable( false );

    setTitle( query->track()->track() );
    setArtist( query->track()->artist() );
    setAlbum( query->track()->album() );
    setAlbumPos( query->track()->albumpos() );
    setDuration( query->track()->duration() );
    setYear( 0 );
    setBitrate( 0 );

    setFileName( QString() );
    setFileSize( 0 );

    setWindowTitle( query->track()->track() );

    if ( m_interface )
    {
        m_index = m_interface->indexOfQuery( query );

        if ( m_index >= 0 )
            enablePushButtons();
    }
}

bool
PlayableProxyModel::lessThan( int column, const Tomahawk::query_ptr& q1, const Tomahawk::query_ptr& q2 ) const
{
    // Attention: This function may be called very often!
    // So be aware of its performance.
    const Tomahawk::track_ptr& t1 = q1->track();
    const Tomahawk::track_ptr& t2 = q2->track();
    const QString& artist1 = t1->artistSortname();
    const QString& artist2 = t2->artistSortname();
    const QString& album1 = t1->albumSortname();
    const QString& album2 = t2->albumSortname();
    const unsigned int albumpos1 = t1->albumpos();
    const unsigned int albumpos2 = t2->albumpos();
    const unsigned int discnumber1 = t1->discnumber();
    const unsigned int discnumber2 = t2->discnumber();
    const qint64 id1 = (qint64)&q1;
    const qint64 id2 = (qint64)&q2;

    if ( column == PlayableModel::Artist ) // sort by artist
    {
        if ( artist1 == artist2 )
        {
            if ( album1 == album2 )
            {
                if ( discnumber1 == discnumber2 )
                {
                    if ( albumpos1 == albumpos2 )
                        return id1 < id2;

                    return albumpos1 < albumpos2;
                }

                return discnumber1 < discnumber2;
            }

            return QString::localeAwareCompare( album1, album2 ) < 0;
        }

        return QString::localeAwareCompare( artist1, artist2 ) < 0;
    }

    // Sort by Composer
    const QString& composer1 = t1->composerSortname();
    const QString& composer2 = t2->composerSortname();
    if ( column == PlayableModel::Composer )
    {
        if ( composer1 == composer2 )
        {
            if ( album1 == album2 )
            {
                if ( discnumber1 == discnumber2 )
                {
                    if ( albumpos1 == albumpos2 )
                        return id1 < id2;

                    return albumpos1 < albumpos2;
                }

                return discnumber1 < discnumber2;
            }

            return QString::localeAwareCompare( album1, album2 ) < 0;
        }

        return QString::localeAwareCompare( composer1, composer2 ) < 0;
    }

    // Sort by Album
    if ( column == PlayableModel::Album ) // sort by album
    {
        if ( album1 == album2 )
        {
            if ( discnumber1 == discnumber2 )
            {
                if ( albumpos1 == albumpos2 )
                    return id1 < id2;

                return albumpos1 < albumpos2;
            }

            return discnumber1 < discnumber2;
        }

        return QString::localeAwareCompare( album1, album2 ) < 0;
    }

    // Lazy load these variables, they are not used before.
    unsigned int bitrate1 = 0, bitrate2 = 0;
    unsigned int mtime1 = 0, mtime2 = 0;
    unsigned int size1 = 0, size2 = 0;
    unsigned int year1 = 0, year2 = 0;
    float score1 = 0, score2 = 0;
    QString origin1;
    QString origin2;
    if ( !q1->results().isEmpty() )
    {
        Tomahawk::result_ptr r = q1->results().first();
        bitrate1 = r->bitrate();
        mtime1 = r->modificationTime();
        size1 = r->size();
//.........这里部分代码省略.........