bool
Dynamic::QuizPlayBias::trackMatches( int position,
const Meta::TrackList& playlist,
int contextCount ) const
{
Q_UNUSED( contextCount );
if( position <= 0 || position >= playlist.count())
return true;
// -- determine the last character we need to quiz
Meta::TrackPtr lastTrack = playlist[position-1];
Meta::DataPtr lastData;
if( m_follow == TitleToTitle )
lastData = Meta::DataPtr::staticCast<Meta::Track>(lastTrack);
else if( m_follow == ArtistToArtist )
lastData = Meta::DataPtr::staticCast<Meta::Artist>(lastTrack->artist());
else if( m_follow == AlbumToAlbum )
lastData = Meta::DataPtr::staticCast<Meta::Album>(lastTrack->album());
if( !lastData || lastData->name().isEmpty() )
return true;
// -- determine the first character
Meta::TrackPtr track = playlist[position];
Meta::DataPtr data;
if( m_follow == TitleToTitle )
data = Meta::DataPtr::staticCast<Meta::Track>(track);
else if( m_follow == ArtistToArtist )
data = Meta::DataPtr::staticCast<Meta::Artist>(track->artist());
else if( m_follow == AlbumToAlbum )
data = Meta::DataPtr::staticCast<Meta::Album>(track->album());
if( !data || data->name().isEmpty() )
return false;
// -- now compare
QString lastName = lastData->name();
QString name = data->name();
return lastChar( lastName ).toLower() == name[0].toLower();
}
Dynamic::TrackSet
Dynamic::QuizPlayBias::matchingTracks( int position,
const Meta::TrackList& playlist, int contextCount,
Dynamic::TrackCollectionPtr universe ) const
{
Q_UNUSED( contextCount );
if( position <= 0 || position > playlist.count())
return Dynamic::TrackSet( universe, true );
// determine the last character we need to quiz
Meta::TrackPtr lastTrack = playlist[position-1];
Meta::DataPtr lastData;
if( m_follow == TitleToTitle )
lastData = Meta::DataPtr::staticCast<Meta::Track>(lastTrack);
else if( m_follow == ArtistToArtist )
lastData = Meta::DataPtr::staticCast<Meta::Artist>(lastTrack->artist());
else if( m_follow == AlbumToAlbum )
lastData = Meta::DataPtr::staticCast<Meta::Album>(lastTrack->album());
if( !lastData || lastData->name().isEmpty() )
{
// debug() << "QuizPlay: no data for"<<lastTrack->name();
return Dynamic::TrackSet( universe, true );
}
m_currentCharacter = lastChar(lastData->name()).toLower();
// debug() << "QuizPlay: data for"<<lastTrack->name()<<"is"<<m_currentCharacter;
// -- look if we already buffered it
if( m_tracksValid && m_characterTrackMap.contains( m_currentCharacter ) )
return m_characterTrackMap.value( m_currentCharacter );
// -- start a new query
m_tracks = Dynamic::TrackSet( universe, false );
QTimer::singleShot(0,
const_cast<QuizPlayBias*>(this),
SLOT(newQuery())); // create the new query from my parent thread
return Dynamic::TrackSet();
}