void TrackInfoObject::setBpm(double f) {
if (f < 0) {
return;
}
QMutexLocker lock(&m_qMutex);
// TODO(rryan): Assume always dirties.
bool dirty = false;
if (f == 0.0) {
// If the user sets the BPM to 0, we assume they want to clear the
// beatgrid.
setBeats(BeatsPointer());
dirty = true;
} else if (!m_pBeats) {
setBeats(BeatFactory::makeBeatGrid(this, f, 0));
dirty = true;
} else if (m_pBeats->getBpm() != f) {
m_pBeats->setBpm(f);
dirty = true;
}
if (dirty) {
setDirty(true);
}
lock.unlock();
// Tell the GUI to update the bpm label...
//qDebug() << "TrackInfoObject signaling BPM update to" << f;
emit(bpmUpdated(f));
}
TimeSignature::TimeSignature(Staff* staff, int startTime, int beats, int beat, TimeSignatureType type) : StaffElement(staff, startTime), d(new Private)
{
setBeats(beats);
setBeat(beat);
d->type = type;
}