FretDiagram* FretDiagram::fromString(Score* score, const QString &s)
{
FretDiagram* fd = new FretDiagram(score);
fd->setStrings(s.size());
fd->setFrets(4);
int offset = 0;
int barreString = -1;
for (int i = 0; i < s.size(); i++) {
QChar c = s.at(i);
if (c == 'X' or c == 'O')
fd->setMarker(i, c.unicode());
else if (c == '-' && barreString == -1) {
fd->setBarre(1);
barreString = i;
}
else {
int fret = c.digitValue();
if (fret != -1) {
fd->setDot(i, fret);
if (fret - 3 > 0 && offset < fret - 3)
offset = fret - 3;
}
}
}
if (offset > 0) {
fd->setOffset(offset);
for (int i = 0; i < fd->strings(); i++)
if (fd->dot(i))
fd->setDot(i, fd->dot(i) - offset);
}
if (barreString >= 0)
fd->setDot(barreString, 1);
return fd;
}
