C++ TrackModelItem::isPlaying方法代码示例

void
DynamicWidget::steeringChanged()
{
    // When steering changes, toss all the tracks that are upcoming, and re-fetch.
    // We have to find the currently playing item
    QModelIndex playing;
    for ( int i = 0; i < m_view->proxyModel()->rowCount( QModelIndex() ); ++i )
    {
        const QModelIndex  cur = m_view->proxyModel()->index( i, 0, QModelIndex() );
        TrackModelItem* item = m_view->proxyModel()->itemFromIndex( m_view->proxyModel()->mapToSource( cur ) );
        if ( item && item->isPlaying() )
        {
            playing = cur;
            break;
        }
    }
    if ( !playing.isValid() )
        return;

    const int upcoming = m_view->proxyModel()->rowCount( QModelIndex() ) - 1 - playing.row();
    tDebug() << "Removing tracks after current in station, found" << upcoming;

    QModelIndexList toRemove;
    for ( int i = playing.row() + 1; i < m_view->proxyModel()->rowCount( QModelIndex() ); i++ )
    {
        toRemove << m_view->proxyModel()->index( i, 0, QModelIndex() );
    }

    m_view->proxyModel()->remove( toRemove );

    m_playlist->generator()->fetchNext();
}

void
PlaylistItemDelegate::paintDetailed( QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index ) const
{
    TrackModelItem* item = m_model->itemFromIndex( m_model->mapToSource( index ) );
    Q_ASSERT( item );

    QStyleOptionViewItemV4 opt = option;
    prepareStyleOption( &opt, index, item );
    opt.text.clear();
    qApp->style()->drawControl( QStyle::CE_ItemViewItem, &opt, painter );

    if ( m_view->hoveredIndex().row() == index.row() && m_view->hoveredIndex().column() == index.column() &&
       ( index.column() == TrackModel::Artist || index.column() == TrackModel::Album ) )
    {
        opt.rect.setWidth( opt.rect.width() - 16 );
        QRect arrowRect( opt.rect.x() + opt.rect.width(), opt.rect.y() + 1, opt.rect.height() - 2, opt.rect.height() - 2 );

        if ( m_arrowIcon.height() != arrowRect.height() )
            m_arrowIcon = m_arrowIcon.scaled( arrowRect.size(), Qt::KeepAspectRatio, Qt::SmoothTransformation );
        painter->drawPixmap( arrowRect, m_arrowIcon );
    }

    painter->save();

    if ( index.column() == TrackModel::Score )
    {
        QColor barColor( 167, 183, 211 ); // This matches the sidebar (sourcetreeview.cpp:672)
        if ( opt.state & QStyle::State_Selected )
            painter->setPen( opt.palette.brightText().color() );
        else
            painter->setPen( barColor );

        QRect r = opt.rect.adjusted( 3, 3, -6, -4 );
        painter->drawRect( r );

        QRect fillR = r;
        int fillerWidth = (int)( index.data().toFloat() * (float)fillR.width() );
        fillR.adjust( 0, 0, -( fillR.width() - fillerWidth ), 0 );

        if ( opt.state & QStyle::State_Selected )
            painter->setBrush( opt.palette.brightText().color() );
        else
            painter->setBrush( barColor );

        painter->drawRect( fillR );
    }
    else if ( item->isPlaying() )
    {
        {
            QRect r = opt.rect.adjusted( 3, 0, 0, 0 );

            // Paint Now Playing Speaker Icon
            if ( m_view->header()->visualIndex( index.column() ) == 0 )
            {
                r.adjust( 0, 0, 0, -3 );
                painter->drawPixmap( r.adjusted( 3, 1, 18 - r.width(), 1 ), m_nowPlayingIcon );
                r.adjust( 25, 0, 0, 3 );
            }

            painter->setPen( opt.palette.text().color() );
            QString text = painter->fontMetrics().elidedText( index.data().toString(), Qt::ElideRight, r.width() - 3 );
            painter->drawText( r.adjusted( 0, 1, 0, 0 ), text, m_centerOption );
        }
    }
    else
    {
        painter->setPen( opt.palette.text().color() );
        QString text = painter->fontMetrics().elidedText( index.data().toString(), Qt::ElideRight, opt.rect.width() - 3 );
        painter->drawText( opt.rect.adjusted( 3, 1, 0, 0 ), text, m_centerOption );
    }

    painter->restore();
}

void
PlaylistItemDelegate::paintShort( QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index, bool useAvatars ) const
{
    TrackModelItem* item = m_model->itemFromIndex( m_model->mapToSource( index ) );
    Q_ASSERT( item );

    QStyleOptionViewItemV4 opt = option;
    prepareStyleOption( &opt, index, item );
    opt.text.clear();

    qApp->style()->drawControl( QStyle::CE_ItemViewItem, &opt, painter );

    if ( m_view->header()->visualIndex( index.column() ) > 0 )
        return;

    QPixmap pixmap;
    QString artist, track, upperText, lowerText;
    source_ptr source = item->query()->playedBy().first;

    if ( item->query()->results().count() )
    {
        artist = item->query()->results().first()->artist()->name();
        track = item->query()->results().first()->track();
    }
    else
    {
        artist = item->query()->artist();
        track = item->query()->track();
    }

    if ( source.isNull() )
    {
        upperText = artist;
        lowerText = track;
    }
    else
    {
        upperText = QString( "%1 - %2" ).arg( artist ).arg( track );
        QString playtime = TomahawkUtils::ageToString( QDateTime::fromTime_t( item->query()->playedBy().second ) );

        if ( source == SourceList::instance()->getLocal() )
            lowerText = QString( "played %1 ago by you" ).arg( playtime );
        else
            lowerText = QString( "played %1 ago by %2" ).arg( playtime ).arg( source->friendlyName() );

        if ( useAvatars )
            pixmap = source->avatar( Source::FancyStyle );
    }

    if ( pixmap.isNull() && !useAvatars )
        pixmap = QPixmap( RESPATH "images/track-placeholder.png" );
    else if ( pixmap.isNull() && useAvatars )
        pixmap = m_defaultAvatar;

    painter->save();
    {
        QRect r = opt.rect.adjusted( 3, 6, 0, -6 );

        // Paint Now Playing Speaker Icon
        if ( item->isPlaying() )
        {
            r.adjust( 0, 0, 0, 0 );
            QRect npr = r.adjusted( 3, r.height() / 2 - m_nowPlayingIcon.height() / 2, 18 - r.width(), -r.height() / 2 + m_nowPlayingIcon.height() / 2  );
            painter->drawPixmap( npr, m_nowPlayingIcon );
            r.adjust( 22, 0, 0, 0 );
        }

        painter->setPen( opt.palette.text().color() );

        QRect ir = r.adjusted( 4, 0, -option.rect.width() + option.rect.height() - 8 + r.left(), 0 );

        QPixmap scover;
        if ( m_cache.contains( pixmap.cacheKey() ) )
        {
            scover = m_cache.value( pixmap.cacheKey() );
        }
        else
        {
            scover = pixmap.scaled( ir.size(), Qt::KeepAspectRatio, Qt::SmoothTransformation );
            m_cache.insert( pixmap.cacheKey(), scover );
        }
        painter->drawPixmap( ir, scover );

        QFont boldFont = opt.font;
        boldFont.setBold( true );

        r.adjust( ir.width() + 12, 0, -12, 0 );
        painter->setFont( boldFont );
        QString text = painter->fontMetrics().elidedText( upperText, Qt::ElideRight, r.width() );
        painter->drawText( r.adjusted( 0, 1, 0, 0 ), text, m_topOption );


        painter->setFont( opt.font);
        text = painter->fontMetrics().elidedText( lowerText, Qt::ElideRight, r.width() );
        painter->drawText( r.adjusted( 0, 1, 0, 0 ), text, m_bottomOption );
    }
    painter->restore();
}

void
PlaylistChartItemDelegate::paint( QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index ) const
{
    TrackModelItem* item = m_model->itemFromIndex( m_model->mapToSource( index ) );
    Q_ASSERT( item );

    QStyleOptionViewItemV4 opt = option;
    prepareStyleOption( &opt, index, item );
    opt.text.clear();

    qApp->style()->drawControl( QStyle::CE_ItemViewItem, &opt, painter );

    if ( m_view->header()->visualIndex( index.column() ) > 0 )
        return;

    QPixmap pixmap, avatar;
    QString artist, track, upperText, lowerText;
    unsigned int duration = 0;

    if ( item->query()->results().count() )
    {
        artist = item->query()->results().first()->artist()->name();
        track = item->query()->results().first()->track();
        duration = item->query()->results().first()->duration();
    }
    else
    {
        artist = item->query()->artist();
        track = item->query()->track();
    }

    painter->save();
    {
        QRect r = opt.rect.adjusted( 3, 6, 0, -6 );

        // Paint Now Playing Speaker Icon
        if ( item->isPlaying() )
        {
            QPixmap nowPlayingIcon = TomahawkUtils::defaultPixmap( TomahawkUtils::NowPlayingSpeaker );
            QRect npr = r.adjusted( 3, r.height() / 2 - nowPlayingIcon.height() / 2, 18 - r.width(), -r.height() / 2 + nowPlayingIcon.height() / 2 );
            nowPlayingIcon = TomahawkUtils::defaultPixmap( TomahawkUtils::NowPlayingSpeaker, TomahawkUtils::Original, npr.size() );
            painter->drawPixmap( npr, nowPlayingIcon );
            r.adjust( 22, 0, 0, 0 );
        }

        QFont figureFont = opt.font;
        figureFont.setPixelSize( 18 );
        figureFont.setWeight( 99 );

        QFont boldFont = opt.font;
        boldFont.setPixelSize( 15 );
        boldFont.setWeight( 99 );

        QFont smallBoldFont = opt.font;
        smallBoldFont.setPixelSize( 12 );
        smallBoldFont.setWeight( 80 );

        QFont durationFont = opt.font;
        durationFont.setPixelSize( 12 );
        durationFont.setWeight( 80 );

        if ( index.row() == 0 )
        {
            figureFont.setPixelSize( 36 );
            boldFont.setPixelSize( 26 );
            smallBoldFont.setPixelSize( 22 );
        }
        else if ( index.row() == 1 )
        {
            figureFont.setPixelSize( 30 );
            boldFont.setPixelSize( 22 );
            smallBoldFont.setPixelSize( 18 );
        }
        else if ( index.row() == 2 )
        {
            figureFont.setPixelSize( 24 );
            boldFont.setPixelSize( 18 );
            smallBoldFont.setPixelSize( 14 );
        }
        else if ( index.row() >= 10 )
        {
            boldFont.setPixelSize( 12 );
            smallBoldFont.setPixelSize( 11 );
        }

        QRect figureRect = r.adjusted( 0, 0, -option.rect.width() + 60 - 6 + r.left(), 0 );
        painter->setFont( figureFont );
        painter->setPen( option.palette.text().color().lighter( 450 ) );
        painter->drawText( figureRect, QString::number( index.row() + 1 ), m_centerOption );
        painter->setPen( opt.palette.text().color() );

        QRect pixmapRect = r.adjusted( figureRect.width() + 6, 0, -option.rect.width() + figureRect.width() + option.rect.height() - 6 + r.left(), 0 );
        pixmap = item->query()->cover( pixmapRect.size(), false );
        if ( !pixmap )
        {
            pixmap = TomahawkUtils::defaultPixmap( TomahawkUtils::DefaultTrackImage, TomahawkUtils::ScaledCover, pixmapRect.size() );
        }
        painter->drawPixmap( pixmapRect, pixmap );
        
        r.adjust( pixmapRect.width() + figureRect.width() + 18, 1, -28, 0 );
//.........这里部分代码省略.........

void
PlaylistLargeItemDelegate::paint( QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index ) const
{
    TrackModelItem* item = m_model->itemFromIndex( m_model->mapToSource( index ) );
    Q_ASSERT( item );

    QStyleOptionViewItemV4 opt = option;
    prepareStyleOption( &opt, index, item );
    opt.text.clear();

    qApp->style()->drawControl( QStyle::CE_ItemViewItem, &opt, painter );

    if ( m_view->header()->visualIndex( index.column() ) > 0 )
        return;

    QPixmap pixmap, avatar;
    QString artist, track, lowerText;
    unsigned int duration = 0;

    if ( item->query()->results().count() )
    {
        artist = item->query()->results().first()->artist()->name();
        track = item->query()->results().first()->track();
        duration = item->query()->results().first()->duration();
    }
    else
    {
        artist = item->query()->artist();
        track = item->query()->track();
    }

    QSize avatarSize( 32, 32 );
    source_ptr source = item->query()->playedBy().first;
    if ( m_mode == RecentlyPlayed && !source.isNull() )
    {
        avatar = source->avatar( Source::FancyStyle, avatarSize );
        QString playtime = TomahawkUtils::ageToString( QDateTime::fromTime_t( item->query()->playedBy().second ), true );

        if ( source == SourceList::instance()->getLocal() )
            lowerText = QString( tr( "played %1 by you" ) ).arg( playtime );
        else
            lowerText = QString( tr( "played %1 by %2" ) ).arg( playtime ).arg( source->friendlyName() );
    }

    if ( m_mode == LatestAdditions && item->query()->numResults() )
    {
        QString playtime = TomahawkUtils::ageToString( QDateTime::fromTime_t( item->query()->results().first()->modificationTime() ), true );

        lowerText = QString( tr( "added %1" ) ).arg( playtime );
    }

    if ( m_mode == LovedTracks )
        lowerText = item->query()->socialActionDescription( "Love", Query::Detailed );

    painter->save();
    {
        QRect r = opt.rect.adjusted( 3, 6, 0, -6 );

        // Paint Now Playing Speaker Icon
        if ( item->isPlaying() )
        {
            QPixmap nowPlayingIcon = TomahawkUtils::defaultPixmap( TomahawkUtils::NowPlayingSpeaker );
            QRect npr = r.adjusted( 3, r.height() / 2 - nowPlayingIcon.height() / 2, 18 - r.width(), -r.height() / 2 + nowPlayingIcon.height() / 2 );
            nowPlayingIcon = TomahawkUtils::defaultPixmap( TomahawkUtils::NowPlayingSpeaker, TomahawkUtils::Original, npr.size() );
            painter->drawPixmap( npr, nowPlayingIcon );
            r.adjust( 22, 0, 0, 0 );
        }

        painter->setPen( opt.palette.text().color() );

        QRect pixmapRect = r.adjusted( 6, 0, -option.rect.width() + option.rect.height() - 6 + r.left(), 0 );
        QRect avatarRect = r.adjusted( option.rect.width() - r.left() - 12 - avatarSize.width(), ( option.rect.height() - avatarSize.height() ) / 2 - 5, 0, 0 );
        avatarRect.setSize( avatarSize );

        pixmap = item->query()->cover( pixmapRect.size(), false );
        if ( !pixmap )
        {
            pixmap = TomahawkUtils::defaultPixmap( TomahawkUtils::DefaultTrackImage, TomahawkUtils::ScaledCover, pixmapRect.size() );
        }

        painter->drawPixmap( pixmapRect, pixmap );

        if ( !avatar.isNull() )
            painter->drawPixmap( avatarRect, avatar );

        QFont boldFont = opt.font;
        boldFont.setPixelSize( 15 );
        boldFont.setWeight( 99 );

        QFont smallBoldFont = opt.font;
        smallBoldFont.setPixelSize( 12 );
        smallBoldFont.setBold( true );
        smallBoldFont.setWeight( 60 );

        QFont smallFont = opt.font;
        smallFont.setPixelSize( 10 );

        r.adjust( pixmapRect.width() + 12, 1, -28 - avatar.width(), 0 );
        QRect leftRect = r.adjusted( 0, 0, -48, 0 );
        QRect rightRect = r.adjusted( r.width() - 40, 0, 0, 0 );
//.........这里部分代码省略.........