void TagGuesser::guessTags(MPDSong &song) {
QString pattern = Config::instance()->guessPattern();
// Check that we have a pattern at all
if (pattern.isEmpty())
return;
// Cant guess from URL's
if (song.url().contains("://"))
return;
// Return if we already have everything we can guess
if (!(song.title().isEmpty() || song.album().isEmpty() || song.artist().isEmpty() || song.track().isEmpty()))
return;
DEBUG4("Guessing..");
// Tokens to expand. %a=album, %b=band, %n=tracknr, %t=title, %i=ignore
QStringList matchers = pattern.split(QRegExp("%[abnti]"), QString::SkipEmptyParts);
QStringList markers = pattern.split('%', QString::SkipEmptyParts);
// Check that we actually have any matchers, if not, return filename as title, the rest empty.
DEBUG4("Matchers size: %d %d", matchers.size(), markers.size());
if (matchers.isEmpty() || markers.isEmpty()) {
DEBUG4("No matchers or no markers");
if (song.title().isEmpty())
song.setTitle(song.url());
return;
}
// Remove bogus markers
DEBUG4("Removing bogus markers");
markers = markers.filter(QRegExp("^[abnti]"));
// Remove trailing garbage on markers
DEBUG4("Removing trailing garbage on markers");
markers = markers.replaceInStrings(QRegExp("^([abnti]).*"), "%\\1");
DEBUG4("Adding greedy front matcher");
// If pattern does not have leading characters, add a greedy matcher at front so we get the whole start
if (pattern.contains(QRegExp("^%[abnti]")))
matchers.push_front("^");
// If pattern contains trailing characters, add a dummy marker at the end.
DEBUG4("Finding last matcher");
QString lastMarker = markers.last();
DEBUG4("Finding end of last marker");
int endOfLastMatcher = pattern.lastIndexOf(lastMarker) + lastMarker.size();
DEBUG4("Adding dummy end marker");
if (endOfLastMatcher < pattern.size())
markers += "trailingcharacters";
foreach (QString p, markers) {
DEBUG4("marker : %s", qPrintable(p));
}
QVariant MPDSongModel::data(const QModelIndex &index, int role) const {
Q_ASSERT(m_header);
if (!index.isValid() || index.row() < 0 || index.row() >= m_visible.size() || index.column() >= m_header->columns().size())
return QVariant();
MPDSong song = m_visible.at(index.row());
if (song.isNull())
return QVariant();
if (role == Qt::DisplayRole) {
switch (m_header->columns().at(index.column())) {
case HeaderView::TRACK:
return song.track();
case HeaderView::TITLE:
return song.title();
case HeaderView::LENGTH:
return song.time();
case HeaderView::ALBUM:
return song.album();
case HeaderView::ARTIST:
return song.artist();
case HeaderView::FILENAME:
return song.filename();
case HeaderView::URL:
return song.url();
case HeaderView::GENRE:
return song.genre();
case HeaderView::DATE:
return song.date();
case HeaderView::COMPOSER:
return song.composer();
case HeaderView::PERFORMER:
return song.performer();
case HeaderView::COMMENT:
return song.comment();
case HeaderView::DISC:
return song.disc();
default:
return "?";
}
}
if (role == Qt::TextAlignmentRole && m_header->columns().at(index.column()) == HeaderView::LENGTH)
return Qt::AlignRight;
return QVariant();
}
int compareRows(MPDSong l, MPDSong r) const {
int res = 0;
switch (m_sortColumn) {
case HeaderView::TRACK:
res = compareTrack(l, r);
if (!res) res = compareCols(l.artist(), r.artist());
if (!res) res = compareCols(l.album(), r.album());
if (!res) res = compareCols(l.title(), r.title());
break;
case HeaderView::LENGTH:
res = compareCols(l.secs(), r.secs());
// Fall through
case HeaderView::ARTIST:
if (!res) res = compareCols(l.artist(), r.artist());
if (!res) res = compareCols(l.album(), r.album());
if (!res) res = compareTrack(l, r);
if (!res) res = compareCols(l.title(), r.title());
break;
case HeaderView::COMPOSER:
res = compareCols(l.composer(), r.composer());
if (!res) res = compareCols(l.album(), r.album());
if (!res) res = compareTrack(l, r);
if (!res) res = compareCols(l.title(), r.title());
break;
case HeaderView::TITLE:
res = normalizedCompareCols(l.title(), r.title());
if (!res) res = compareCols(l.artist(), r.artist());
if (!res) res = compareCols(l.album(), r.album());
if (!res) res = compareTrack(l, r);
break;
case HeaderView::URL:
res = compareCols(l.url(), r.url());
break;
// Similar ones..
case HeaderView::FILENAME:
STD_COMP(filename);
break;
case HeaderView::GENRE:
STD_COMP(genre);
break;
case HeaderView::DATE:
STD_COMP(date);
res = compareCols(l.date(), r.date());
break;
case HeaderView::COMMENT:
STD_COMP(comment);
break;
case HeaderView::DISC:
STD_COMP(disc);
break;
case HeaderView::PERFORMER:
STD_COMP(performer);
break;
default: // ALBUM
res = normalizedCompareCols(l.album(), r.album());
if (!res) res = compareCols(l.artist(), r.artist());
if (!res) res = compareTrack(l, r);
if (!res) res = compareCols(l.title(), r.title());
}
if (m_sortOrder != Qt::AscendingOrder)
res = res * -1;
return res;
}