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initial, tentative, untested implementation of TempoMap::remove_time()

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Paul Davis 2021-03-22 11:27:22 -06:00
parent 68959643e8
commit 99c8c0b658
1 changed files with 62 additions and 2 deletions
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64
libs/temporal/tempo.cc
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@ -2640,8 +2640,68 @@ TempoMap::insert_time (timepos_t const & pos, timecnt_t const & duration)
bool
TempoMap::remove_time (timepos_t const & pos, timecnt_t const & duration)
{
#warning NUTEMPO implement TempoMap::remove_time
return false;
superclock_t start (pos.superclocks());
superclock_t end ((pos + duration).superclocks());
superclock_t shift (duration.superclocks());
TempoPoint* last_tempo = 0;
MeterPoint* last_meter = 0;
TempoPoint* tempo_after = 0;
MeterPoint* meter_after = 0;
bool moved = false;
for (Tempos::iterator t = _tempos.begin(); t != _tempos.end(); ) {
if (t->sclock() >= start && t->sclock() < end) {
last_tempo = &*t;
t = _tempos.erase (t);
moved = true;
} else if (t->sclock() >= start) {
t->set (t->sclock() - shift, t->beats(), t->bbt());
moved = true;
if (t->sclock() == start) {
tempo_after = &*t;
}
++t;
}
}
for (Meters::iterator m = _meters.begin(); m != _meters.end(); ) {
if (m->sclock() >= start && m->sclock() < end) {
last_meter = &*m;
m = _meters.erase (m);
moved = true;
} else if (m->sclock() >= start) {
m->set (m->sclock() - shift, m->beats(), m->bbt());
moved = true;
if (m->sclock() == start) {
meter_after = &*m;
}
++m;
}
}
if (last_tempo && !tempo_after) {
last_tempo->set (start, last_tempo->beats(), last_tempo->bbt());
moved = true;
}
if (last_meter && !meter_after) {
last_tempo->set (start, last_meter->beats(), last_meter->bbt());
moved = true;
}
if (moved) {
reset_starting_at (start);
}
return moved;
}
TempoPoint const *