void System::layout2()
{
if (isVbox()) // ignore vbox
return;
int nstaves = _staves.size();
qreal _spatium = spatium();
qreal y = 0.0;
int lastStaffIdx = 0; // last visible staff
int firstStaffIdx = -1;
qreal lastStaffDistanceDown = 0.0;
for (int staffIdx = 0; staffIdx < nstaves; ++staffIdx) {
Staff* staff = score()->staff(staffIdx);
StyleIdx downDistance;
qreal userDist = 0.0;
if ((staffIdx + 1) == nstaves) {
//
// last staff in system
//
MeasureBase* mb = ml.last();
bool nextMeasureIsVBOX = false;
if (mb->next()) {
Element::Type type = mb->next()->type();
if (type == Element::Type::VBOX || type == Element::Type::TBOX || type == Element::Type::FBOX)
nextMeasureIsVBOX = true;
}
downDistance = nextMeasureIsVBOX ? StyleIdx::systemFrameDistance : StyleIdx::minSystemDistance;
}
else if (staff->rstaff() < (staff->part()->staves()->size()-1)) {
//
// staff is not last staff in a part
//
downDistance = StyleIdx::akkoladeDistance;
userDist = score()->staff(staffIdx + 1)->userDist();
}
else {
downDistance = StyleIdx::staffDistance;
userDist = score()->staff(staffIdx + 1)->userDist();
}
SysStaff* s = _staves[staffIdx];
qreal distDown = score()->styleS(downDistance).val() * _spatium + userDist;
qreal nominalDistDown = distDown;
qreal distUp = 0.0;
int n = ml.size();
for (int i = 0; i < n; ++i) {
MeasureBase* m = ml.at(i);
distDown = qMax(distDown, m->distanceDown(staffIdx));
distUp = qMax(distUp, m->distanceUp(staffIdx));
}
s->setDistanceDown(distDown);
s->setDistanceUp(distUp);
if (!staff->show() || !s->show()) {
s->setbbox(QRectF()); // already done in layout() ?
continue;
}
qreal sHeight = staff->height();
qreal dup = staffIdx == 0 ? 0.0 : s->distanceUp();
if (staff->lines() == 1)
dup -= _spatium * staff->mag();
s->bbox().setRect(_leftMargin, y + dup, width() - _leftMargin, sHeight);
y += dup + sHeight + s->distanceDown();
lastStaffIdx = staffIdx;
lastStaffDistanceDown = distDown - nominalDistDown;
if (firstStaffIdx == -1)
firstStaffIdx = staffIdx;
}
if (firstStaffIdx == -1)
firstStaffIdx = 0;
qreal systemHeight = staff(lastStaffIdx)->bbox().bottom();
if (lastStaffIdx < nstaves - 1)
systemHeight += lastStaffDistanceDown;
setHeight(systemHeight);
int n = ml.size();
for (int i = 0; i < n; ++i) {
MeasureBase* m = ml.at(i);
if (m->type() == Element::Type::MEASURE) {
// note that the factor 2 * _spatium must be corrected for when exporting
// system distance in MusicXML (issue #24733)
m->bbox().setRect(0.0, -_spatium, m->width(), systemHeight + 2 * _spatium);
}
else if (m->type() == Element::Type::HBOX) {
m->bbox().setRect(0.0, 0.0, m->width(), systemHeight);
static_cast<HBox*>(m)->layout2();
}
}
if (_barLine) {
_barLine->setTrack(firstStaffIdx * VOICES);
_barLine->setSpan(lastStaffIdx - firstStaffIdx + 1);
if (score()->staff(0)->lines() == 1)
_barLine->setSpanFrom(BARLINE_SPAN_1LINESTAFF_FROM);
int spanTo = (score()->staff(lastStaffIdx)->lines() == 1) ?
BARLINE_SPAN_1LINESTAFF_TO :
(score()->staff(lastStaffIdx)->lines()-1)*2;
_barLine->setSpanTo(spanTo);
_barLine->layout();
}
//---------------------------------------------------
// layout brackets vertical position
//---------------------------------------------------
n = _brackets.size();
for (int i = 0; i < n; ++i) {
Bracket* b = _brackets.at(i);
int staffIdx1 = b->firstStaff();
int staffIdx2 = b->lastStaff();
qreal sy = 0; // assume bracket not visible
qreal ey = 0;
// if start staff not visible, try next staff
while (staffIdx1 <= staffIdx2 && !_staves[staffIdx1]->show())
++staffIdx1;
// if end staff not visible, try prev staff
while (staffIdx1 <= staffIdx2 && !_staves[staffIdx2]->show())
--staffIdx2;
// the bracket will be shown IF:
// it spans at least 2 visible staves (staffIdx1 < staffIdx2) OR
// it spans just one visible staff (staffIdx1 == staffIdx2) but it is required to do so
// (the second case happens at least when the bracket is initially dropped)
bool notHidden = (staffIdx1 < staffIdx2) || (b->span() == 1 && staffIdx1 == staffIdx2);
if (notHidden) { // set vert. pos. and height to visible spanned staves
sy = _staves[staffIdx1]->bbox().top();
ey = _staves[staffIdx2]->bbox().bottom();
}
b->rypos() = sy;
b->setHeight(ey - sy);
b->layout();
}
//---------------------------------------------------
// layout instrument names
//---------------------------------------------------
int staffIdx = 0;
n = score()->parts().size();
for (Part* p : score()->parts()) {
SysStaff* s = staff(staffIdx);
SysStaff* s2;
int nstaves = p->nstaves();
if (s->show()) {
for (InstrumentName* t : s->instrumentNames) {
//
// override Text->layout()
//
qreal y1, y2;
switch (t->layoutPos()) {
default:
case 0: // center at part
y1 = s->bbox().top();
s2 = staff(staffIdx);
for (int i = staffIdx + nstaves - 1; i > 0; --i) {
SysStaff* s = staff(i);
if (s->show()) {
s2 = s;
break;
}
}
y2 = s2->bbox().bottom();
break;
case 1: // center at first staff
y1 = s->bbox().top();
y2 = s->bbox().bottom();
break;
// TODO:
// sort out invisible staves
case 2: // center between first and second staff
y1 = s->bbox().top();
y2 = staff(staffIdx + 1)->bbox().bottom();
break;
case 3: // center at second staff
y1 = staff(staffIdx + 1)->bbox().top();
y2 = staff(staffIdx + 1)->bbox().bottom();
break;
case 4: // center between first and second staff
y1 = staff(staffIdx + 1)->bbox().top();
y2 = staff(staffIdx + 2)->bbox().bottom();
break;
case 5: // center at third staff
y1 = staff(staffIdx + 2)->bbox().top();
y2 = staff(staffIdx + 2)->bbox().bottom();
break;
}
t->rypos() = y1 + (y2 - y1) * .5 + t->textStyle().offset(t->spatium()).y();
}
}
staffIdx += nstaves;
}
}
