コード例 #1
0
ファイル: pedal.cpp プロジェクト: frankvanbever/MuseScore
QPointF Pedal::linePos(Grip grip, System** sys) const
      {
      qreal x = 0.0;
      qreal nhw = score()->noteHeadWidth();
      System* s = nullptr;
      if (grip == Grip::START) {
            ChordRest* c = toChordRest(startElement());
            if (c) {
                  s = c->segment()->system();
                  x = c->pos().x() + c->segment()->pos().x() + c->segment()->measure()->pos().x();
                  if (c->type() == ElementType::REST && c->durationType() == TDuration::DurationType::V_MEASURE)
                        x -= c->x();
                  if (beginHookType() == HookType::HOOK_45)
                        x += nhw * .5;
                  }
            }
      else {
            Element* e = endElement();
            ChordRest* c = toChordRest(endElement());
            if (!e || e == startElement() || (endHookType() == HookType::HOOK_90)) {
                  // pedal marking on single note or ends with non-angled hook:
                  // extend to next note or end of measure
                  Segment* seg = nullptr;
                  if (!e)
                        seg = startSegment();
                  else
                        seg = c->segment();
                  if (seg) {
                        seg = seg->next();
                        for ( ; seg; seg = seg->next()) {
                              if (seg->segmentType() == SegmentType::ChordRest) {
                                    // look for a chord/rest in any voice on this staff
                                    bool crFound = false;
                                    int track = staffIdx() * VOICES;
                                    for (int i = 0; i < VOICES; ++i) {
                                          if (seg->element(track + i)) {
                                                crFound = true;
                                                break;
                                                }
                                          }
                                    if (crFound)
                                          break;
                                    }
                              else if (seg->segmentType() == SegmentType::EndBarLine) {
                                    break;
                                    }
                              }
                        }
                  if (seg) {
                        s = seg->system();
                        x = seg->pos().x() + seg->measure()->pos().x() - nhw * 2;
                        }
                  }
            else if (c) {
                  s = c->segment()->system();
                  x = c->pos().x() + c->segment()->pos().x() + c->segment()->measure()->pos().x();
                  if (c->type() == ElementType::REST && c->durationType() == TDuration::DurationType::V_MEASURE)
                        x -= c->x();
                  }
            if (!s) {
                  int t = tick2();
                  Measure* m = score()->tick2measure(t);
                  s = m->system();
                  x = m->tick2pos(t);
                  }
            if (endHookType() == HookType::HOOK_45)
                  x += nhw * .5;
            else
                  x += nhw;
            }

      *sys = s;
      return QPointF(x, 0);
      }