Method processAutomations

src/core/Song.cpp:425–485

void Song::processAutomations(const TrackList &tracklist, MidiTime timeStart, fpp_t)
{
	AutomatedValueMap values;

	QSet<const AutomatableModel*> recordedModels;

	TrackContainer* container = this;
	int tcoNum = -1;

	switch (m_playMode)
	{
	case Mode_PlaySong:
		break;
	case Mode_PlayBB:
	{
		Q_ASSERT(tracklist.size() == 1);
		Q_ASSERT(tracklist.at(0)->type() == Track::BBTrack);
		auto bbTrack = dynamic_cast<BBTrack*>(tracklist.at(0));
		auto bbContainer = Engine::getBBTrackContainer();
		container = bbContainer;
		tcoNum = bbTrack->index();
	}
		break;
	default:
		return;
	}

	values = container->automatedValuesAt(timeStart, tcoNum);
	TrackList tracks = container->tracks();

	Track::tcoVector tcos;
	for (Track* track : tracks)
	{
		if (track->type() == Track::AutomationTrack) {
			track->getTCOsInRange(tcos, 0, timeStart);
		}
	}

	// Process recording
	for (TrackContentObject* tco : tcos)
	{
		auto p = dynamic_cast<AutomationPattern *>(tco);
		MidiTime relTime = timeStart - p->startPosition();
		if (p->isRecording() && relTime >= 0 && relTime < p->length())
		{
			const AutomatableModel* recordedModel = p->firstObject();
			p->recordValue(relTime, recordedModel->value<float>());

			recordedModels << recordedModel;
		}
	}

	// Apply values
	for (auto it = values.begin(); it != values.end(); it++)
	{
		if (! recordedModels.contains(it.key()))
		{
			it.key()->setAutomatedValue(it.value());