void Spanner::remove(Element* e)
{
SpannerSegment* ss = static_cast<SpannerSegment*>(e);
if (ss->system())
ss->system()->remove(ss);
segments.removeOne(ss);
}
void Spanner::add(Element* e)
{
SpannerSegment* ls = static_cast<SpannerSegment*>(e);
ls->setSpanner(this);
ls->setSelected(selected());
ls->setTrack(ls->spanner()->track());
segments.append(ls);
}
void Glissando::layout()
{
qreal _spatium = spatium();
if (score() == gscore // for use in palettes
|| startElement() == nullptr || endElement() == nullptr) { // or while dragging
if (spannerSegments().isEmpty())
add(createLineSegment());
LineSegment* s = frontSegment();
s->setPos(QPointF());
s->setPos2(QPointF(_spatium * GLISS_PALETTE_WIDTH, -_spatium * GLISS_PALETTE_HEIGHT));
s->layout();
return;
}
SLine::layout();
setPos(0.0, 0.0);
adjustReadPos();
Note* anchor1 = static_cast<Note*>(startElement());
Note* anchor2 = static_cast<Note*>(endElement());
Chord* cr1 = anchor1->chord();
Chord* cr2 = anchor2->chord();
GlissandoSegment* segm1 = static_cast<GlissandoSegment*>(frontSegment());
GlissandoSegment* segm2 = static_cast<GlissandoSegment*>(backSegment());
// Note: line segments are defined by
// initial point: ipos() (relative to system origin)
// ending point: pos2() (relative to initial point)
// LINE ENDING POINTS TO NOTE HEAD CENTRES
// assume gliss. line goes from centre of initial note centre to centre of ending note:
// move first segment origin and last segment ending point from note head origin to note head centre
QPointF offs1 = QPointF(anchor1->headWidth() * 0.5, 0.0);
QPointF offs2 = QPointF(anchor2->headWidth() * 0.5, 0.0);
// AVOID HORIZONTAL LINES
int upDown = (0 < (anchor2->pitch() - anchor1->pitch())) - ((anchor2->pitch() - anchor1->pitch()) < 0);
// on TAB's, glissando are by necessity on the same string, this gives an horizontal glissando line;
// make bottom end point lower and top ending point higher
if (cr1->staff()->isTabStaff()) {
qreal yOff = cr1->staff()->lineDistance() * 0.3 * _spatium;
offs1.ry() += yOff * upDown;
offs2.ry() -= yOff * upDown;
}
// if not TAB, angle glissando between notes on the same line
else {
if (anchor1->line() == anchor2->line()) {
offs1.ry() += _spatium * 0.25 * upDown;
offs2.ry() -= _spatium * 0.25 * upDown;
}
}
// move initial point of first segment and adjust its length accordingly
segm1->setPos (segm1->ipos() + offs1);
segm1->setPos2(segm1->ipos2() - offs1);
// adjust ending point of last segment
segm2->setPos2(segm2->ipos2() + offs2);
// FINAL SYSTEM-INITIAL NOTE
// if the last gliss. segment attaches to a system-initial note, some extra width has to be added
if (cr2->segment()->measure() == cr2->segment()->system()->firstMeasure() && cr2->rtick() == 0)
{
segm2->rxpos() -= GLISS_STARTOFSYSTEM_WIDTH * _spatium;
segm2->rxpos2()+= GLISS_STARTOFSYSTEM_WIDTH * _spatium;
}
// INTERPOLATION OF INTERMEDIATE POINTS
// This probably belongs to SLine class itself; currently it does not seem
// to be needed for anything else than Glissando, though
// get total x-width and total y-height of all segments
qreal xTot = 0.0;
for (SpannerSegment* segm : spannerSegments())
xTot += segm->ipos2().x();
qreal y0 = segm1->ipos().y();
qreal yTot = segm2->ipos().y() + segm2->ipos2().y() - y0;
qreal ratio = yTot / xTot;
// interpolate y-coord of intermediate points across total width and height
qreal xCurr = 0.0;
qreal yCurr;
for (int i = 0; i < spannerSegments().count()-1; i++)
{
SpannerSegment* segm = segmentAt(i);
xCurr += segm->ipos2().x();
yCurr = y0 + ratio * xCurr;
segm->rypos2() = yCurr - segm->ipos().y(); // position segm. end point at yCurr
// next segment shall start where this segment stopped
segm = segmentAt(i+1);
segm->rypos2() += segm->ipos().y() - yCurr; // adjust next segm. vertical length
segm->rypos() = yCurr; // position next segm. start point at yCurr
}
// STAY CLEAR OF NOTE APPENDAGES
// initial note dots / ledger line / note head
offs1 *= -1.0; // discount changes already applied
int dots = cr1->dots();
LedgerLine * ledLin = cr1->ledgerLines();
// if dots, start at right of last dot
// if no dots, from right of ledger line, if any; from right of note head, if no ledger line
offs1.rx() += (dots && anchor1->dot(dots-1) ? anchor1->dot(dots-1)->pos().x() + anchor1->dot(dots-1)->width()
: (ledLin ? ledLin->pos().x() + ledLin->width() : anchor1->headWidth()) );
// final note arpeggio / accidental / ledger line / accidental / arpeggio (i.e. from outermost to innermost)
offs2 *= -1.0; // discount changes already applied
if (Arpeggio* a = cr2->arpeggio())
offs2.rx() += a->pos().x() + a->userOff().x();
else if (Accidental* a = anchor2->accidental())
offs2.rx() += a->pos().x() + a->userOff().x();
else if ( (ledLin = cr2->ledgerLines()) != nullptr)
offs2.rx() += ledLin->pos().x();
// add another a quarter spatium of 'air'
offs1.rx() += _spatium * 0.25;
offs2.rx() -= _spatium * 0.25;
// apply offsets: shorten first segment by x1 (and proportionally y) and adjust its length accordingly
offs1.ry() = segm1->ipos2().y() * offs1.x() / segm1->ipos2().x();
segm1->setPos(segm1->ipos() + offs1);
segm1->setPos2(segm1->ipos2() - offs1);
// adjust last segment length by x2 (and proportionally y)
offs2.ry() = segm2->ipos2().y() * offs2.x() / segm2->ipos2().x();
segm2->setPos2(segm2->ipos2() + offs2);
for (SpannerSegment* segm : spannerSegments())
static_cast<GlissandoSegment*>(segm)->layout();
// compute glissando bbox as the bbox of the last segment, relative to the end anchor note
QPointF anchor2PagePos = anchor2->pagePos();
QPointF system2PagePos = cr2->segment()->system()->pagePos();
QPointF anchor2SystPos = anchor2PagePos - system2PagePos;
QRectF r = QRectF(anchor2SystPos - segm2->pos(), anchor2SystPos - segm2->pos() - segm2->pos2()).normalized();
qreal lw = _spatium * lineWidth().val() * .5;
setbbox(r.adjusted(-lw, -lw, lw, lw));
}
void Spanner::add(Element* e)
{
SpannerSegment* ls = static_cast<SpannerSegment*>(e);
ls->setSpanner(this);
segments.append(ls);
}