780 lines
37 KiB
C++
780 lines
37 KiB
C++
//=============================================================================
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// MuseScore
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// Music Composition & Notation
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//
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// Copyright (C) 2009-2011 Werner Schweer
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License version 2
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// as published by the Free Software Foundation and appearing in
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// the file LICENCE.GPL
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//=============================================================================
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#include "repeatlist.h"
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#include "score.h"
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#include "measure.h"
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#include "tempo.h"
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#include "volta.h"
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#include "segment.h"
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#include "marker.h"
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#include "jump.h"
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namespace Ms {
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//---------------------------------------------------------
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// searchLabel
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// @param startMeasure From this measure, if nullptr from firstMeasure
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// @param endMeasure Up to and including this measure, if nullptr till end of score
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//---------------------------------------------------------
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Measure* Score::searchLabel(const QString& s, Measure* startMeasure, Measure* endMeasure)
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{
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if (nullptr == startMeasure)
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startMeasure = firstMeasure();
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if (nullptr == endMeasure)
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endMeasure = lastMeasure();
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if (s == "start")
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return startMeasure;
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else if (s == "end")
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return endMeasure;
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endMeasure = endMeasure->nextMeasure(); // stop comparison needs measure one past the last one to check
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for (Measure* m = startMeasure; m && (m != endMeasure); m = m->nextMeasure()) {
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for (auto e : m->el()) {
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if ( (e->isMarker())
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&& (toMarker(e)->label() == s)) {
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return m;
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}
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}
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}
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return nullptr;
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}
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//---------------------------------------------------------
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// searchLabelWithinSectionFirst
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//---------------------------------------------------------
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Measure* Score::searchLabelWithinSectionFirst(const QString& s, Measure* sectionStartMeasure, Measure* sectionEndMeasure)
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{
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Measure* result = searchLabel(s, sectionStartMeasure, sectionEndMeasure);
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if ((nullptr == result) && (sectionStartMeasure != firstMeasure())) { // not found, expand to the front
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result = searchLabel(s, nullptr, sectionStartMeasure->prevMeasure());
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}
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if ((nullptr == result) && (sectionEndMeasure != lastMeasure())) { // not found, expand to the end
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result = searchLabel(s, sectionEndMeasure->nextMeasure(), nullptr);
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}
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return result;
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}
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//---------------------------------------------------------
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// RepeatSegment
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//---------------------------------------------------------
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RepeatSegment::RepeatSegment()
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{
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tick = 0;
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utick = 0;
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utime = 0.0;
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timeOffset = 0.0;
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}
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RepeatSegment::RepeatSegment(RepeatSegment * const rs, Measure * const fromMeasure, Measure * const untilMeasure)
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{
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tick = 0;
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utick = 0;
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utime = 0.0;
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timeOffset = 0.0;
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//copy the measure list
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auto it = rs->measureList.cbegin();
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if (nullptr != fromMeasure) {
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//skip until fromMeasure
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while ((it->first != fromMeasure) && ((++it) != rs->measureList.cend()));
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}
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while (it != rs->measureList.cend()) {
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if ((nullptr != untilMeasure) && (it->first->no() > untilMeasure->no())) {
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break;
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}
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measureList.push_back(std::make_pair(it->first, it->second));
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++it;
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}
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if (!measureList.empty()) {
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tick = measureList.cbegin()->first->tick();
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}
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}
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void RepeatSegment::addMeasure(Measure * const m)
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{
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if (measureList.empty()) {
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tick = m->tick();
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}
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measureList.push_back(std::make_pair(m, m->playbackCount()));
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}
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bool RepeatSegment::containsMeasure(Measure const * const m) const
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{
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for (std::pair<Measure*, int> measure : measureList)
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{
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if (measure.first == m)
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return true;
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}
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return false;
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}
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int RepeatSegment::len() const
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{
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return (measureList.empty()) ? 0 : (measureList.last().first->endTick() - tick);
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}
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//---------------------------------------------------------
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// playbackCount
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// returns the playbackCount of this measure at the time it was inserted into the repeatSegment
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// returns 0 if the measure is not part of this repeatSegment
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//---------------------------------------------------------
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int RepeatSegment::playbackCount(Measure * const m) const
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{
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for (std::pair<Measure*, int> measure : measureList)
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{
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if (measure.first == m)
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return measure.second;
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}
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return 0;
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}
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//---------------------------------------------------------
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// RepeatList
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//---------------------------------------------------------
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RepeatList::RepeatList(Score* s)
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{
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_score = s;
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idx1 = 0;
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idx2 = 0;
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}
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//---------------------------------------------------------
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// ticks
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//---------------------------------------------------------
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int RepeatList::ticks()
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{
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if (length() > 0) {
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RepeatSegment* s = last();
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return s->utick + s->len();
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}
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return 0;
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}
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//---------------------------------------------------------
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// update
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//---------------------------------------------------------
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void RepeatList::update()
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{
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const TempoMap* tl = _score->tempomap();
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int utick = 0;
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qreal t = 0;
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for(RepeatSegment* s : *this) {
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s->utick = utick;
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s->utime = t;
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qreal ct = tl->tick2time(s->tick);
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s->timeOffset = t - ct;
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utick += s->len();
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t += tl->tick2time(s->tick + s->len()) - ct;
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}
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}
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//---------------------------------------------------------
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// utick2tick
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//---------------------------------------------------------
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int RepeatList::utick2tick(int tick) const
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{
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unsigned n = size();
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if (n == 0)
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return tick;
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if (tick < 0)
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return 0;
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unsigned ii = (idx1 < n) && (tick >= at(idx1)->utick) ? idx1 : 0;
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for (unsigned i = ii; i < n; ++i) {
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if ((tick >= at(i)->utick) && ((i + 1 == n) || (tick < at(i+1)->utick))) {
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idx1 = i;
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return tick - (at(i)->utick - at(i)->tick);
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}
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}
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if (MScore::debugMode) {
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qFatal("tick %d not found in RepeatList", tick);
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}
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return 0;
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}
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//---------------------------------------------------------
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// tick2utick
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//---------------------------------------------------------
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int RepeatList::tick2utick(int tick) const
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{
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for (const RepeatSegment* s : *this) {
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if (tick >= s->tick && tick < (s->tick + s->len() ))
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return s->utick + (tick - s->tick);
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}
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return last()->utick + (tick - last()->tick);
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}
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//---------------------------------------------------------
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// utick2utime
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//---------------------------------------------------------
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qreal RepeatList::utick2utime(int tick) const
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{
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unsigned n = size();
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unsigned ii = (idx1 < n) && (tick >= at(idx1)->utick) ? idx1 : 0;
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for (unsigned i = ii; i < n; ++i) {
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if ((tick >= at(i)->utick) && ((i + 1 == n) || (tick < at(i+1)->utick))) {
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int t = tick - (at(i)->utick - at(i)->tick);
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qreal tt = _score->tempomap()->tick2time(t) + at(i)->timeOffset;
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return tt;
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}
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}
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return 0.0;
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}
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//---------------------------------------------------------
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// utime2utick
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//---------------------------------------------------------
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int RepeatList::utime2utick(qreal t) const
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{
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unsigned n = size();
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unsigned ii = (idx2 < n) && (t >= at(idx2)->utime) ? idx2 : 0;
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for (unsigned i = ii; i < n; ++i) {
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if ((t >= at(i)->utime) && ((i + 1 == n) || (t < at(i+1)->utime))) {
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idx2 = i;
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return _score->tempomap()->time2tick(t - at(i)->timeOffset) + (at(i)->utick - at(i)->tick);
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}
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}
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if (MScore::debugMode) {
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qFatal("time %f not found in RepeatList", t);
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}
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return 0;
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}
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//---------------------------------------------------------
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// dump
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//---------------------------------------------------------
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void RepeatList::dump() const
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{
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#if 0
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qDebug("==Dump Repeat List:==");
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foreach(const RepeatSegment* s, *this) {
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qDebug("%p tick: %3d(%d) %3d(%d) len %d(%d) beats %f + %f", s,
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s->utick / MScore::division,
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s->utick / MScore::division / 4,
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s->tick / MScore::division,
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s->tick / MScore::division / 4,
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s->len / MScore::division,
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s->len / MScore::division / 4,
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s->utime, s->timeOffset);
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}
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#endif
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}
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//---------------------------------------------------------
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// unwind
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// implements:
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// - repeats
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// - volta
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// - d.c. al fine
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// - d.s. al fine
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// - d.s. al coda
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//---------------------------------------------------------
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void RepeatList::unwind()
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{
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qDeleteAll(*this);
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clear();
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_voltaRanges.clear();
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_jumpsTaken.clear();
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Measure* fm = _score->firstMeasure();
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if (!fm)
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return;
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//qDebug("unwind===================");
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for (Measure* m = fm; m; m = m->nextMeasure())
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m->setPlaybackCount(0);
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preProcessVoltas();
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MeasureBase* sectionStartMeasureBase = NULL; // NULL indicates haven't discovered starting Measure of section
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MeasureBase* sectionEndMeasureBase = NULL;
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// partition score by section breaks and unwind individual sections separately
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// note: section breaks may occur on non-Measure frames, so must search list of all MeasureBases
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for (MeasureBase* mb = _score->first(); mb; mb = mb->next()) {
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// unwindSection only deals with real Measures, so sectionEndMeasureBase and sectionStartMeasureBase will only point to real Measures
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if (mb->isMeasure()) {
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sectionEndMeasureBase = mb; // ending measure of section is the most recently encountered actual Measure
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// starting measure of section will be the first non-NULL actual Measure encountered
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if (sectionStartMeasureBase == NULL)
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sectionStartMeasureBase = mb;
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}
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// if found section break or reached final MeasureBase of score, then unwind
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if (mb->sectionBreak() || !mb->nextMeasure()) {
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// only unwind if section starts and ends with actual real measure
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if (sectionStartMeasureBase && sectionEndMeasureBase) {
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unwindSection(reinterpret_cast<Measure*>(sectionStartMeasureBase), reinterpret_cast<Measure*>(sectionEndMeasureBase));
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sectionStartMeasureBase = 0; // reset to NULL to indicate that don't know starting Measure of next section after starting new section
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sectionEndMeasureBase = 0;
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}
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else {
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qDebug( "Will not unroll a section that doesn't start or end with an actual measure. sectionStartMeasureBase = %p, sectionEndMeasureBase = %p",
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sectionStartMeasureBase, sectionEndMeasureBase);
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}
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}
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}
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update();
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dump();
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}
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//---------------------------------------------------------
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// preProcessVoltas
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// determine the real effective endpoint of voltas
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// because an open volta doesn't necessarily end on its end anchorpoint
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// MUST be called before unwinding(Section) logic!
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//---------------------------------------------------------
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void RepeatList::preProcessVoltas()
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{
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Volta* nextVolta = nullptr; //work backwards as a volta can end because the next one starts
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for (auto rit = _score->spanner().crbegin(); rit != _score->spanner().crend(); ++rit)
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{
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Spanner* s = (*rit).second;
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if (!s->isVolta())
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continue;
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Volta* volta = toVolta(s);
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if (volta) {
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if (_voltaRanges.find(volta) == _voltaRanges.end()) { // not yet determined the real endpoint, should always be true
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// start by assuming the end of the spanner == the end of this volta (closed volta)
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Measure* voltaEndMeasure = volta->endMeasure();
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// open volta may end past its spanner
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if (volta->getProperty(P_ID::END_HOOK_TYPE).value<HookType>() == HookType::NONE) {
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Measure* nextMeasureToInspect = voltaEndMeasure->nextMeasure();
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// open volta ends:
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while ( (nextMeasureToInspect) // end of score
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&& (!voltaEndMeasure->sectionBreak()) // or end of section
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&& (!voltaEndMeasure->repeatEnd()) // hitting an endRepeat
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&& (!nextMeasureToInspect->repeatStart()) // or starting a new repeat
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&& (!nextVolta || (nextMeasureToInspect != nextVolta->startMeasure())) // or if another volta starts
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&& (!voltaEndMeasure->repeatJump()) //or hitting a jump, otherwise the part after the jump might be considered under this volta as well…
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) { // nextMeasureToInspect is still part of this volta
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voltaEndMeasure = nextMeasureToInspect;
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nextMeasureToInspect = voltaEndMeasure->nextMeasure();
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}
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}
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// found the real ending of this volta, store it to minimize search efforts
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_voltaRanges.insert(std::pair<Volta*, Measure*>(volta, voltaEndMeasure));
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nextVolta = volta; // this volta might indicate the end of the previous one
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}
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else {
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qDebug("Found same volta twice in the spannermap");
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}
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}
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} // end spannerloop
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}
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//---------------------------------------------------------
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// searchVolta
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// return the iterator in _voltaRanges for the volta spanning the given measure
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//---------------------------------------------------------
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std::map<Volta*, Measure*>::const_iterator RepeatList::searchVolta(Measure * const measure) const
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{
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std::map<Volta*, Measure*>::const_iterator voltaRange;
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for (voltaRange = _voltaRanges.cbegin(); voltaRange != _voltaRanges.cend(); ++voltaRange) {
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if ( (voltaRange->first->startMeasure()->no() <= measure->no())
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&& (measure->no() <= voltaRange->second->no())
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) {
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break;
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}
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}
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return voltaRange;
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}
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//---------------------------------------------------------
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// unwindSection
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// unwinds from sectionStartMeasure through sectionEndMeasure
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// appends repeat segments using rs
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//---------------------------------------------------------
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void RepeatList::unwindSection(Measure* const sectionStartMeasure, Measure* const sectionEndMeasure)
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{
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// qDebug("unwind %d-measure section starting %p through %p", sectionEndMeasure->no()+1, sectionStartMeasure, sectionEndMeasure);
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if (!sectionStartMeasure || !sectionEndMeasure) {
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qDebug("invalid section start/end");
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return;
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}
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rs = nullptr; // no measures to be played yet
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Measure* prevMeasure = nullptr; // the last processed measure that is part of this RepeatSegment
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Measure* currentMeasure = sectionStartMeasure; // the measure to be processed/evaluated
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Measure* startFrom = sectionStartMeasure; //the last StartRepeat encountered in this loop; we should return here upon hitting a repeat
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int startFromRepeatStartCount = findStartFromRepeatCount(startFrom);
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std::map<Volta*, Measure*>::const_iterator voltaRange = _voltaRanges.cend();
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Measure* playUntilMeasure = nullptr; // used during jumping
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Measure* continueAtMeasure = nullptr; // used during jumping
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while (currentMeasure && (currentMeasure != sectionEndMeasure->nextMeasure())) {
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if ( (voltaRange != _voltaRanges.cend())
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&& (currentMeasure == voltaRange->second->nextMeasure())
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) { // volta was active -> not anymore
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voltaRange = _voltaRanges.cend();
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}
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// Should we play or skip this measure: --> look for volta
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if (voltaRange == _voltaRanges.cend()) {
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voltaRange = searchVolta(currentMeasure);
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if ( (voltaRange != _voltaRanges.cend())
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&& !voltaRange->first->hasEnding(startFrom->playbackCount())
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) {
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// volta does not apply for expected playbackCount --> skip it
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// but first finalize the current RepeatSegment
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if (rs) {
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push_back(rs);
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rs = nullptr;
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}
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// now skip the volta
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currentMeasure = voltaRange->second->nextMeasure();
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voltaRange = _voltaRanges.cend();
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// restart processing for the new measure
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prevMeasure = nullptr;
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continue;
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}
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}
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// include this measure into the current RepeatSegment
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currentMeasure->setPlaybackCount(currentMeasure->playbackCount() + 1);
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if (nullptr == rs) {
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rs = new RepeatSegment();
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}
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rs->addMeasure(currentMeasure);
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prevMeasure = currentMeasure;
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if (currentMeasure->repeatStart()) {
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// always start from the last encountered repeat
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startFrom = currentMeasure;
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startFromRepeatStartCount = findStartFromRepeatCount(startFrom);
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}
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if ( (currentMeasure->repeatEnd())
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&& (currentMeasure->playbackCount() < currentMeasure->repeatCount()) // not yet exhausted our number of repeats
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) {
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// finalize this RepeatSegment
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push_back(rs);
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rs = nullptr;
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// we already know where to start from now, so continue right away with the new reference
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currentMeasure = startFrom;
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prevMeasure = nullptr;
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voltaRange = _voltaRanges.cend();
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continue;
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}
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// we will now check for jumps, these should only be followed upon the last pass through a measure
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if ( (startFrom->playbackCount() == startFromRepeatStartCount) // means last pass through this set of repeats
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|| ( (voltaRange != _voltaRanges.cend())
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&& (startFrom->playbackCount() == voltaRange->first->lastEnding()) // or last pass through this volta
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)
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) {
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if (currentMeasure->repeatJump()) { // found a jump, should we follow it?
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// fetch the jump
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Jump* jump = nullptr;
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for (Element* e : currentMeasure->el()) {
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if (e->isJump()) {
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jump = toJump(e);
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break;
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}
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}
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// have we processed it already?
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if (_jumpsTaken.find(jump) == _jumpsTaken.end()) { // not yet processed
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// processing it now
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_jumpsTaken.insert(jump);
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// validate the jump
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Measure* jumpToMeasure = _score->searchLabelWithinSectionFirst(jump->jumpTo(), sectionStartMeasure, sectionEndMeasure);
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playUntilMeasure = _score->searchLabelWithinSectionFirst(jump->playUntil(), sectionStartMeasure, sectionEndMeasure);
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continueAtMeasure = _score->searchLabelWithinSectionFirst(jump->continueAt(), sectionStartMeasure, sectionEndMeasure);
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if (jumpToMeasure && playUntilMeasure && (continueAtMeasure || jump->continueAt().isEmpty())) {
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// we will jump, but first finalize the current RepeatSegment
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push_back(rs);
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rs = nullptr;
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// now jump
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// basically, replay the score from jumpToMeasure all the way up the to last occurence of playUntilMeasure
|
|
// this replay lookup uses mostly indexes over iterators as push_back of new segments might invalidate an interator
|
|
// step 1: find the last occurence of playUntilMeasure
|
|
Measure* copyUntilMeasure = playUntilMeasure; // assume we can rewind back to the playUntilMeasure
|
|
int copyUntilIdx = this->size() - 1; // assume we will find the copyUntilMeasure in the (currently) last repeatSegment
|
|
int playUntilIdx = this->size();
|
|
do {
|
|
--playUntilIdx;
|
|
}
|
|
while ( (!(this->at(playUntilIdx)->containsMeasure(playUntilMeasure)))
|
|
&& (playUntilIdx > 0)
|
|
);
|
|
if (isFinalPlaythrough(playUntilMeasure, (this->cbegin() + playUntilIdx))) {
|
|
copyUntilIdx = playUntilIdx;
|
|
}
|
|
else { // not found or not final playthrough
|
|
// -> currentMeasure is the most recent parsed measure that should be included into the replay
|
|
copyUntilMeasure = currentMeasure;
|
|
}
|
|
|
|
// step 2: find jumpToMeasure
|
|
auto copyFromIdx = -1;
|
|
Measure * copyFromMeasure = jumpToMeasure;
|
|
if (jump->playRepeats()) {
|
|
// we want to replay as much from the score as possible => find first occurence of jumpToMeasure
|
|
for (auto it = this->cbegin(); it != this->cend(); ++it) {
|
|
if ((*it)->containsMeasure(jumpToMeasure)) {
|
|
copyFromIdx = it - this->cbegin();
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else { // no repeats upon jumping => find final occurence of jumpToMeasure
|
|
auto jumpToIdx = this->size();
|
|
do {
|
|
--jumpToIdx;
|
|
}
|
|
while ( (!(this->at(jumpToIdx)->containsMeasure(jumpToMeasure)))
|
|
&& (jumpToIdx > 0)
|
|
);
|
|
if (isFinalPlaythrough(jumpToMeasure, (this->cbegin() + jumpToIdx))) {
|
|
copyFromIdx = jumpToIdx;
|
|
}
|
|
}
|
|
|
|
// step 3 : duplicate the part we would otherwise have to rewind
|
|
if (jump->playRepeats()) {
|
|
// all should be replayed, simply copy over
|
|
for (int idx = copyFromIdx; idx <= copyUntilIdx; ++idx) {
|
|
this->push_back(new RepeatSegment(
|
|
this->at(idx),
|
|
(idx == copyFromIdx) ? copyFromMeasure : nullptr,
|
|
(idx == copyUntilIdx) ? copyUntilMeasure : nullptr
|
|
)
|
|
);
|
|
}
|
|
}
|
|
else { // only most recent passes should be played
|
|
// so we have to inspect each measure to be it's most recent playthrough
|
|
int idx = copyFromIdx;
|
|
while (idx <= copyUntilIdx) {
|
|
RepeatSegment* referenceSegment = this->at(idx);
|
|
auto referenceIt = referenceSegment->measureList.cbegin();
|
|
bool forwardToMoreRecentPlaythrough = false;
|
|
if (idx == copyFromIdx) {
|
|
// skip start of segment
|
|
while ((referenceIt->first != copyFromMeasure) && ((++referenceIt) != referenceSegment->measureList.cend()));
|
|
}
|
|
// start copy
|
|
while ( ((referenceIt != referenceSegment->measureList.cend()) && !forwardToMoreRecentPlaythrough)
|
|
&& ((idx != copyUntilIdx) || (referenceIt->first->no() <= copyUntilMeasure->no()))
|
|
) {
|
|
// find most recent occurence of this measure
|
|
auto mostRecentRepeatSegmentIdx = copyUntilIdx; // look backwards to find to most recent first
|
|
while ((mostRecentRepeatSegmentIdx > idx) && !forwardToMoreRecentPlaythrough) {
|
|
RepeatSegment * mostRecentSegment = this->at(mostRecentRepeatSegmentIdx);
|
|
if ( (mostRecentSegment->playbackCount(referenceIt->first) >= referenceIt->second)
|
|
&& (referenceIt->first->no() <= copyUntilMeasure->no())
|
|
) {
|
|
// found a more recent playthrough => continue our copy from there
|
|
forwardToMoreRecentPlaythrough = true;
|
|
// save continueCopyPosition
|
|
copyFromMeasure = referenceIt->first;
|
|
idx = mostRecentRepeatSegmentIdx;
|
|
continue;
|
|
}
|
|
--mostRecentRepeatSegmentIdx;
|
|
}
|
|
if (!forwardToMoreRecentPlaythrough) {
|
|
// this is the most recent playthrough of this measure -> copy it
|
|
if (nullptr == rs) {
|
|
rs = new RepeatSegment();
|
|
rs->tick = referenceIt->first->tick();
|
|
}
|
|
rs->measureList.push_back(std::make_pair(referenceIt->first, referenceIt->second));
|
|
}
|
|
// test & copy next measure
|
|
++referenceIt;
|
|
}
|
|
// store what we've copied from this repeatSegment
|
|
if (rs) {
|
|
push_back(rs);
|
|
rs = nullptr;
|
|
}
|
|
// move to the next repeatSegment
|
|
if (!forwardToMoreRecentPlaythrough) {
|
|
++idx;
|
|
}
|
|
}
|
|
}
|
|
|
|
// step 4 : determine the next measure to evaluate
|
|
if (copyUntilMeasure == playUntilMeasure) {
|
|
// fully processed this jump, we know where to continue, so jump there
|
|
currentMeasure = continueAtMeasure;
|
|
// end of processing this jump
|
|
playUntilMeasure = nullptr;
|
|
continueAtMeasure = nullptr;
|
|
}
|
|
else {
|
|
// still more to process
|
|
if (copyFromIdx == -1) {
|
|
// still everything to process, because we couldn't copy from the jumpToMeasure yet
|
|
currentMeasure = jumpToMeasure; // so start there now
|
|
}
|
|
else {
|
|
// we have copied stuff, but not yet all of it
|
|
currentMeasure = copyUntilMeasure->nextMeasure();
|
|
}
|
|
}
|
|
if (currentMeasure) {
|
|
startFrom = findStartRepeat(currentMeasure); // not yet happy with these, but not worse than before
|
|
startFromRepeatStartCount = findStartFromRepeatCount(startFrom);
|
|
}
|
|
|
|
// restart processing
|
|
prevMeasure = nullptr;
|
|
voltaRange = _voltaRanges.cend();
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (currentMeasure == playUntilMeasure) {
|
|
// end of processing this jump
|
|
playUntilMeasure = nullptr;
|
|
// finalize the current RepeatSegment
|
|
push_back(rs);
|
|
rs = nullptr;
|
|
// we know where to continue, so jump there
|
|
currentMeasure = continueAtMeasure;
|
|
continueAtMeasure = nullptr;
|
|
// restart processing
|
|
prevMeasure = nullptr;
|
|
voltaRange = _voltaRanges.cend();
|
|
continue;
|
|
}
|
|
}
|
|
|
|
// keep looping until reach end of score or end of the section
|
|
currentMeasure = currentMeasure->nextMeasure();
|
|
}
|
|
|
|
// append the final repeat segment of that section
|
|
if (rs) {
|
|
if (prevMeasure) {
|
|
if (rs->len()) {
|
|
push_back(rs);
|
|
rs = nullptr;
|
|
}
|
|
else
|
|
delete rs;
|
|
}
|
|
else // not even a single measure included in the segment -> it is empty
|
|
delete rs;
|
|
}
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// findStartRepeat
|
|
// search backwards starting at a given measure to find a repeatStart
|
|
// @return the measure having the repeatStart or start of section
|
|
//---------------------------------------------------------
|
|
|
|
Measure* RepeatList::findStartRepeat(Measure * const measure) const
|
|
{
|
|
Measure* m = measure;
|
|
while ((!m->repeatStart())
|
|
&& (m != _score->firstMeasure())
|
|
&& (!m->prevMeasure()->sectionBreak()))
|
|
{
|
|
m = m->prevMeasure();
|
|
}
|
|
return m;
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// findStartFromRepeatCount
|
|
// @param startFrom starting measure for this repeat subsection
|
|
// @return number of times playback passes the start repeat barline (not accounting for jumps)
|
|
//---------------------------------------------------------
|
|
|
|
int RepeatList::findStartFromRepeatCount(Measure * const startFrom) const
|
|
{
|
|
Measure * m = startFrom;
|
|
int startFromRepeatCount = (m->repeatEnd())? (m->repeatCount()) : 1;
|
|
m = m->nextMeasure();
|
|
while (m && !m->repeatStart()) {
|
|
if (m->repeatEnd()) {
|
|
startFromRepeatCount += m->repeatCount() - 1;
|
|
}
|
|
m = (m->sectionBreak()) ? nullptr : m->nextMeasure();
|
|
}
|
|
return startFromRepeatCount;
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// isFinalPlaythrough
|
|
// @param measure the measure to verify
|
|
// @param repeatSegment consider measure with its playbackCount in this specific RepeatSegment
|
|
// @return true if that measure has its final playthrough in the given repeatSegment
|
|
//---------------------------------------------------------
|
|
|
|
bool RepeatList::isFinalPlaythrough(Measure * const measure, QList<RepeatSegment*>::const_iterator repeatSegmentIt) const
|
|
{
|
|
bool finalPlaythrough = false;
|
|
|
|
if ( (repeatSegmentIt != this->cend())
|
|
&& ((*repeatSegmentIt)->containsMeasure(measure))
|
|
) {
|
|
// step 1 : so go and look back for the relevant startRepeatMeasure
|
|
Measure * startRepeatMeasure = findStartRepeat(measure);
|
|
auto startRepeatIt = repeatSegmentIt;
|
|
while ( (startRepeatIt != this->cbegin())
|
|
&& (!(*startRepeatIt)->containsMeasure(startRepeatMeasure))
|
|
){
|
|
--startRepeatIt;
|
|
}
|
|
int startRepeatPlaybackCount = (*startRepeatIt)->playbackCount(startRepeatMeasure);
|
|
// step 2 : does this measure belong to a volta?
|
|
auto voltaRange = searchVolta(measure);
|
|
// step 3 : is it the final playThrough of this measure?
|
|
if ( (startRepeatPlaybackCount == findStartFromRepeatCount(startRepeatMeasure))
|
|
|| ( (voltaRange != _voltaRanges.cend())
|
|
&& (startRepeatPlaybackCount == voltaRange->first->lastEnding())
|
|
)
|
|
) {
|
|
finalPlaythrough = true;
|
|
}
|
|
//else: found, but not yet final playthrough -> nothing to do
|
|
}
|
|
//else: measure not found == not part of this RepeatSegment -> nothing to do
|
|
|
|
return finalPlaythrough;
|
|
}
|
|
}
|