C++ (Cpp) Score::cmdUpdateNotes示例

void EditStaff::apply()
      {
      Score* score  = staff->score();
      Part* part    = staff->part();

      int intervalIdx = iList->currentIndex();
      bool upFlag     = up->isChecked();

      Interval interval  = intervalList[intervalIdx];
      interval.diatonic  += octave->value() * 7;
      interval.chromatic += octave->value() * 12;

      if (!upFlag)
            interval.flip();
      instrument.setTranspose(interval);

      instrument.setMinPitchA(_minPitchA);
      instrument.setMaxPitchA(_maxPitchA);
      instrument.setMinPitchP(_minPitchP);
      instrument.setMaxPitchP(_maxPitchP);
      instrument.setShortName(QTextDocumentFragment(shortName->document()));
      instrument.setLongName(QTextDocumentFragment(longName->document()));

      bool s            = small->isChecked();
      bool inv          = invisible->isChecked();
      qreal userDist    = spinExtraDistance->value();
      QColor col        = color->color();
      int staffIdx      = staffType->itemData(staffType->currentIndex()).toInt();
      StaffType* st     = score->staffType(staffIdx);


      // before changing instrument, check if notes need to be updated
      // true if changing into or away from TAB or from one TAB type to another

      StaffGroup ng = st->group();                          // new staff group
      StaffGroup og = staff->staffType()->group();          // old staff group

      bool updateNeeded = (ng == TAB_STAFF_GROUP && og != TAB_STAFF_GROUP) ||
                          (ng != TAB_STAFF_GROUP && og == TAB_STAFF_GROUP) ||
                          (ng == TAB_STAFF_GROUP && og == TAB_STAFF_GROUP
                             && instrument.stringData() != part->instr()->stringData());

      if (!(instrument == *part->instr()) || part->partName() != partName->text()) {
            score->undo(new ChangePart(part, instrument, partName->text()));
            emit instrumentChanged();
            }

      if (s != staff->small() || inv != staff->invisible() || userDist != staff->userDist() || st  != staff->staffType() || col != staff->color())
            score->undo(new ChangeStaff(staff, s, inv, userDist * score->spatium(), col, st));

      if (updateNeeded)
            score->cmdUpdateNotes();

      score->setLayoutAll(true);
      score->update();
      }