MuseScore/libmscore/slur.cpp

1535 lines
53 KiB
C++

//=============================================================================
// MuseScore
// Music Composition & Notation
//
// Copyright (C) 2002-2011 Werner Schweer
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2
// as published by the Free Software Foundation and appearing in
// the file LICENCE.GPL
//=============================================================================
#include "note.h"
#include "chord.h"
#include "xml.h"
#include "slur.h"
#include "tie.h"
#include "measure.h"
#include "utils.h"
#include "score.h"
#include "system.h"
#include "segment.h"
#include "staff.h"
#include "navigate.h"
#include "articulation.h"
#include "undo.h"
#include "stem.h"
#include "beam.h"
#include "mscore.h"
#include "page.h"
#include "part.h"
namespace Ms {
//---------------------------------------------------------
// SlurSegment
//---------------------------------------------------------
SlurSegment::SlurSegment(Score* score)
: SpannerSegment(score)
{
autoAdjustOffset = QPointF();
}
SlurSegment::SlurSegment(const SlurSegment& b)
: SpannerSegment(b)
{
for (int i = 0; i < int(GripSlurSegment::GRIPS); ++i)
ups[i] = b.ups[i];
path = b.path;
autoAdjustOffset = QPointF();
}
//---------------------------------------------------------
// move
//---------------------------------------------------------
void SlurSegment::move(const QPointF& s)
{
Element::move(s);
for (int k = 0; k < int(GripSlurSegment::GRIPS); ++k)
ups[k].p += s;
}
//---------------------------------------------------------
// draw
//---------------------------------------------------------
void SlurSegment::draw(QPainter* painter) const
{
// hide tie toward the second chord of a cross-measure value
if ((slurTie()->type() == ElementType::TIE)
&& (static_cast<Tie*>(slurTie())->endNote())
&& (static_cast<Tie*>(slurTie())->endNote()->chord()->crossMeasure() == CrossMeasure::SECOND))
return;
QPen pen(curColor());
switch (slurTie()->lineType()) {
case 0:
painter->setBrush(QBrush(pen.color()));
pen.setCapStyle(Qt::RoundCap);
pen.setJoinStyle(Qt::RoundJoin);
pen.setWidthF(point(score()->styleS(StyleIdx::SlurEndWidth)));
break;
case 1:
painter->setBrush(Qt::NoBrush);
pen.setWidthF(point(score()->styleS(StyleIdx::SlurDottedWidth)));
pen.setStyle(Qt::DotLine);
break;
case 2:
painter->setBrush(Qt::NoBrush);
pen.setWidthF(point(score()->styleS(StyleIdx::SlurDottedWidth)));
pen.setStyle(Qt::DashLine);
break;
}
painter->setPen(pen);
painter->drawPath(path);
}
//---------------------------------------------------------
// updateGrips
// return grip rectangles in page coordinates
//---------------------------------------------------------
void SlurSegment::updateGrips(int* n, int* defaultGrip, QRectF* r) const
{
*n = int(GripSlurSegment::GRIPS);
*defaultGrip = int(GripSlurSegment::END);
QPointF p(pagePos());
for (int i = 0; i < int(GripSlurSegment::GRIPS); ++i)
r[i].translate(ups[i].p + ups[i].off * spatium() + p);
}
//---------------------------------------------------------
// searchCR
//---------------------------------------------------------
static ChordRest* searchCR(Segment* segment, int startTrack, int endTrack)
{
// for (Segment* s = segment; s; s = s->next1MM(SegmentType::ChordRest)) {
for (Segment* s = segment; s; s = s->next(SegmentType::ChordRest)) { // restrict search to measure
if (startTrack > endTrack) {
for (int t = startTrack-1; t >= endTrack; --t) {
if (s->element(t))
return static_cast<ChordRest*>(s->element(t));
}
}
else {
for (int t = startTrack; t < endTrack; ++t) {
if (s->element(t))
return static_cast<ChordRest*>(s->element(t));
}
}
}
return 0;
}
//---------------------------------------------------------
// edit
// return true if event is accepted
//---------------------------------------------------------
bool SlurSegment::edit(MuseScoreView* viewer, int curGrip, int key, Qt::KeyboardModifiers modifiers, const QString&)
{
Slur* sl = static_cast<Slur*>(slurTie());
if (key == Qt::Key_X) {
sl->setSlurDirection(sl->up() ? Direction::DOWN : Direction::UP);
sl->layout();
return true;
}
if (key == Qt::Key_Home) {
ups[curGrip].off = QPointF();
sl->layout();
return true;
}
if (slurTie()->type() != ElementType::SLUR)
return false;
if (!((modifiers & Qt::ShiftModifier)
&& ((spannerSegmentType() == SpannerSegmentType::SINGLE)
|| (spannerSegmentType() == SpannerSegmentType::BEGIN && curGrip == int(GripSlurSegment::START))
|| (spannerSegmentType() == SpannerSegmentType::END && curGrip == int(GripSlurSegment::END))
)))
return false;
ChordRest* cr = 0;
ChordRest* e = curGrip == int(GripSlurSegment::START) ? sl->startCR() : sl->endCR();
ChordRest* e1 = curGrip == int(GripSlurSegment::START) ? sl->endCR() : sl->startCR();
if (key == Qt::Key_Left)
cr = prevChordRest(e);
else if (key == Qt::Key_Right)
cr = nextChordRest(e);
else if (key == Qt::Key_Up) {
Part* part = e->staff()->part();
int startTrack = part->startTrack();
int endTrack = e->track();
cr = searchCR(e->segment(), endTrack, startTrack);
}
else if (key == Qt::Key_Down) {
int startTrack = e->track() + 1;
Part* part = e->staff()->part();
int endTrack = part->endTrack();
cr = searchCR(e->segment(), startTrack, endTrack);
}
if (cr && cr != e1 &&
((curGrip == int(GripSlurSegment::END) && cr->tick() > sl->tick())
|| (curGrip == int(GripSlurSegment::START) && cr->tick() < sl->tick2() ))
)
changeAnchor(viewer, curGrip, cr);
return true;
}
//---------------------------------------------------------
// changeAnchor
//---------------------------------------------------------
void SlurSegment::changeAnchor(MuseScoreView* viewer, int curGrip, Element* element)
{
if (curGrip == int(GripSlurSegment::START)) {
spanner()->setStartElement(element);
if (spanner()->anchor() == Spanner::Anchor::NOTE) {
Tie* tie = static_cast<Tie*>(spanner());
tie->startNote()->setTieFor(0);
tie->setStartNote(static_cast<Note*>(element));
static_cast<Note*>(element)->setTieFor(tie);
}
else if (spanner()->anchor() == Spanner::Anchor::SEGMENT)
spanner()->setTick(static_cast<Chord*>(element)->tick());
}
else {
spanner()->setEndElement(element);
if (spanner()->anchor() == Spanner::Anchor::NOTE) {
Tie* tie = static_cast<Tie*>(spanner());
tie->endNote()->setTieBack(0);
tie->setEndNote(static_cast<Note*>(element));
static_cast<Note*>(element)->setTieBack(tie);
}
else if (spanner()->anchor() == Spanner::Anchor::SEGMENT) {
spanner()->setTick2(static_cast<Chord*>(element)->tick());
spanner()->setTrack2(element->track());
}
}
int segments = spanner()->spannerSegments().size();
ups[curGrip].off = QPointF();
spanner()->layout();
if (spanner()->spannerSegments().size() != segments) {
QList<SpannerSegment*>& ss = spanner()->spannerSegments();
SlurSegment* newSegment = static_cast<SlurSegment*>(curGrip == int(GripSlurSegment::END) ? ss.back() : ss.front());
score()->endCmd();
score()->startCmd();
viewer->startEdit(newSegment, curGrip);
score()->setLayoutAll(true);
}
}
//---------------------------------------------------------
// gripAnchor
//---------------------------------------------------------
QPointF SlurSegment::gripAnchor(int grip) const
{
SlurPos spos;
slurTie()->slurPos(&spos);
QPointF sp(system()->pagePos());
QPointF p1(spos.p1 + spos.system1->pagePos());
QPointF p2(spos.p2 + spos.system2->pagePos());
switch (spannerSegmentType()) {
case SpannerSegmentType::SINGLE:
if (grip == int(GripSlurSegment::START))
return p1;
else if (grip == int(GripSlurSegment::END))
return p2;
break;
case SpannerSegmentType::BEGIN:
if (grip == int(GripSlurSegment::START))
return p1;
else if (grip == int(GripSlurSegment::END))
return system()->abbox().topRight();
break;
case SpannerSegmentType::MIDDLE:
if (grip == int(GripSlurSegment::START))
return sp;
else if (grip == int(GripSlurSegment::END))
return system()->abbox().topRight();
break;
case SpannerSegmentType::END:
if (grip == int(GripSlurSegment::START))
return sp;
else if (grip == int(GripSlurSegment::END))
return p2;
break;
}
return QPointF();
}
//---------------------------------------------------------
// getGrip
//---------------------------------------------------------
QPointF SlurSegment::getGrip(int n) const
{
switch((GripSlurSegment)n) {
case GripSlurSegment::START:
case GripSlurSegment::END:
return (ups[n].p - gripAnchor(n)) / spatium() + ups[n].off;
default:
return ups[n].off;
}
}
//---------------------------------------------------------
// setGrip
//---------------------------------------------------------
void SlurSegment::setGrip(int n, const QPointF& pt)
{
switch((GripSlurSegment)n) {
case GripSlurSegment::START:
case GripSlurSegment::END:
ups[n].off = ((pt * spatium()) - (ups[n].p - gripAnchor(n))) / spatium();
break;
default:
ups[n].off = pt;
break;
}
slurTie()->layout();
}
//---------------------------------------------------------
// editDrag
//---------------------------------------------------------
void SlurSegment::editDrag(const EditData& ed)
{
qreal _spatium = spatium();
ups[ed.curGrip].off += (ed.delta / _spatium);
if (ed.curGrip == int(GripSlurSegment::START) || ed.curGrip == int(GripSlurSegment::END)) {
slurTie()->computeBezier(this);
//
// move anchor for slurs/ties
//
SpannerSegmentType st = spannerSegmentType();
if (
(ed.curGrip == int(GripSlurSegment::START) && (st == SpannerSegmentType::SINGLE || st == SpannerSegmentType::BEGIN))
|| (ed.curGrip == int(GripSlurSegment::END) && (st == SpannerSegmentType::SINGLE || st == SpannerSegmentType::END))
) {
Spanner* spanner = slurTie();
Qt::KeyboardModifiers km = qApp->keyboardModifiers();
Note* note = static_cast<Note*>(ed.view->elementNear(ed.pos));
if (note && note->type() == ElementType::NOTE &&
((ed.curGrip == int(GripSlurSegment::END) && note->chord()->tick() > slurTie()->tick())
|| (ed.curGrip == int(GripSlurSegment::START) && note->chord()->tick() < slurTie()->tick2()))
) {
if (ed.curGrip == int(GripSlurSegment::END) && spanner->type() == ElementType::TIE) {
Tie* tie = static_cast<Tie*>(spanner);
if (tie->startNote()->pitch() == note->pitch()) {
ed.view->setDropTarget(note);
if (note != tie->endNote()) {
changeAnchor(ed.view, ed.curGrip, note);
return;
}
}
}
else if (spanner->type() != ElementType::TIE && km != (Qt::ShiftModifier | Qt::ControlModifier)) {
Chord* c = note->chord();
ed.view->setDropTarget(note);
if (c != spanner->endCR()) {
changeAnchor(ed.view, ed.curGrip, c);
QPointF p1 = ed.pos - ups[ed.curGrip].p - canvasPos();
ups[ed.curGrip].off = p1 / _spatium;
slurTie()->layout();
}
}
}
else
ed.view->setDropTarget(0);
}
}
else if (ed.curGrip == int(GripSlurSegment::BEZIER1) || ed.curGrip == int(GripSlurSegment::BEZIER2))
slurTie()->computeBezier(this);
else if (ed.curGrip == int(GripSlurSegment::SHOULDER)) {
ups[ed.curGrip].off = QPointF();
slurTie()->computeBezier(this, ed.delta);
}
else if (ed.curGrip == int(GripSlurSegment::DRAG)) {
ups[int(GripSlurSegment::DRAG)].off = QPointF();
setUserOff(userOff() + ed.delta);
}
// if this SlurSegment was automatically adjusted to avoid collision
// lock this edit by resetting SlurSegment to default position
// and incorporating previous adjustment into user offset
QPointF offset = getAutoAdjust();
if (!offset.isNull()) {
setAutoAdjust(0.0, 0.0);
setUserOff(userOff() + offset);
}
}
//---------------------------------------------------------
// writeProperties
//---------------------------------------------------------
void SlurSegment::write(Xml& xml, int no) const
{
if (ups[int(GripSlurSegment::START)].off.isNull()
&& ups[int(GripSlurSegment::END)].off.isNull()
&& ups[int(GripSlurSegment::BEZIER1)].off.isNull()
&& ups[int(GripSlurSegment::BEZIER2)].off.isNull()
&& userOff().isNull()
&& visible()
&& (color() == Qt::black)
)
return;
xml.stag(QString("SlurSegment no=\"%1\"").arg(no));
if (!(ups[int(GripSlurSegment::START)].off.isNull()))
xml.tag("o1", ups[int(GripSlurSegment::START)].off);
if (!(ups[int(GripSlurSegment::BEZIER1)].off.isNull()))
xml.tag("o2", ups[int(GripSlurSegment::BEZIER1)].off);
if (!(ups[int(GripSlurSegment::BEZIER2)].off.isNull()))
xml.tag("o3", ups[int(GripSlurSegment::BEZIER2)].off);
if (!(ups[int(GripSlurSegment::END)].off.isNull()))
xml.tag("o4", ups[int(GripSlurSegment::END)].off);
Element::writeProperties(xml);
xml.etag();
}
//---------------------------------------------------------
// readSegment
//---------------------------------------------------------
void SlurSegment::read(XmlReader& e)
{
while (e.readNextStartElement()) {
const QStringRef& tag(e.name());
if (tag == "o1")
ups[int(GripSlurSegment::START)].off = e.readPoint();
else if (tag == "o2")
ups[int(GripSlurSegment::BEZIER1)].off = e.readPoint();
else if (tag == "o3")
ups[int(GripSlurSegment::BEZIER2)].off = e.readPoint();
else if (tag == "o4")
ups[int(GripSlurSegment::END)].off = e.readPoint();
else if (!Element::readProperties(e))
e.unknown();
}
}
//---------------------------------------------------------
// computeBezier
// compute help points of slur bezier segment
//---------------------------------------------------------
void Slur::computeBezier(SlurSegment* ss, QPointF p6o)
{
qreal _spatium = spatium();
qreal shoulderW; // height as fraction of slur-length
qreal shoulderH;
//
// p1 and p2 are the end points of the slur
//
QPointF pp1 = ss->ups[int(GripSlurSegment::START)].p + ss->ups[int(GripSlurSegment::START)].off * _spatium;
QPointF pp2 = ss->ups[int(GripSlurSegment::END)].p + ss->ups[int(GripSlurSegment::END)].off * _spatium;
QPointF p2 = pp2 - pp1;
if ((p2.x() == 0.0) && (p2.y() == 0.0)) {
Measure* m1 = startCR()->segment()->measure();
Measure* m2 = endCR()->segment()->measure();
qDebug("zero slur id%d at tick %d(%d) track %d in measure %d-%d",
id(), m1->tick(), tick(), track(), m1->no(), m2->no());
return;
}
qreal sinb = atan(p2.y() / p2.x());
QTransform t;
t.rotateRadians(-sinb);
p2 = t.map(p2);
p6o = t.map(p6o);
double smallH = 0.5;
qreal d = p2.x() / _spatium;
if (d <= 2.0) {
shoulderH = d * 0.5 * smallH * _spatium;
shoulderW = .6;
}
else {
qreal dd = log10(1.0 + (d - 2.0) * .5) * 2.0;
if (dd > 3.0)
dd = 3.0;
shoulderH = (dd + smallH) * _spatium;
if (d > 18.0)
shoulderW = 0.7; // 0.8;
else if (d > 10)
shoulderW = 0.6; // 0.7;
else
shoulderW = 0.5; // 0.6;
}
shoulderH -= p6o.y();
if (!up())
shoulderH = -shoulderH;
qreal c = p2.x();
qreal c1 = (c - c * shoulderW) * .5 + p6o.x();
qreal c2 = c1 + c * shoulderW + p6o.x();
QPointF p5 = QPointF(c * .5, 0.0);
QPointF p3(c1, -shoulderH);
QPointF p4(c2, -shoulderH);
qreal w = (score()->styleS(StyleIdx::SlurMidWidth).val() - score()->styleS(StyleIdx::SlurEndWidth).val()) * _spatium;
if (((c2 - c1) / _spatium) <= _spatium)
w *= .5;
QPointF th(0.0, w); // thickness of slur
QPointF p3o = p6o + t.map(ss->ups[int(GripSlurSegment::BEZIER1)].off * _spatium);
QPointF p4o = p6o + t.map(ss->ups[int(GripSlurSegment::BEZIER2)].off * _spatium);
if (!p6o.isNull()) {
QPointF p6i = t.inverted().map(p6o) / _spatium;
ss->ups[int(GripSlurSegment::BEZIER1)].off += p6i ;
ss->ups[int(GripSlurSegment::BEZIER2)].off += p6i;
}
//-----------------------------------calculate p6
QPointF pp3 = p3 + p3o;
QPointF pp4 = p4 + p4o;
QPointF ppp4 = pp4 - pp3;
qreal r2 = atan(ppp4.y() / ppp4.x());
t.reset();
t.rotateRadians(-r2);
QPointF p6 = QPointF(t.map(ppp4).x() * .5, 0.0);
t.rotateRadians(2 * r2);
p6 = t.map(p6) + pp3 - p6o;
//-----------------------------------
ss->path = QPainterPath();
ss->path.moveTo(QPointF());
ss->path.cubicTo(p3 + p3o - th, p4 + p4o - th, p2);
if (lineType() == 0)
ss->path.cubicTo(p4 +p4o + th, p3 + p3o + th, QPointF());
th = QPointF(0.0, 3.0 * w);
ss->shapePath = QPainterPath();
ss->shapePath.moveTo(QPointF());
ss->shapePath.cubicTo(p3 + p3o - th, p4 + p4o - th, p2);
ss->shapePath.cubicTo(p4 +p4o + th, p3 + p3o + th, QPointF());
// translate back
t.reset();
t.translate(pp1.x(), pp1.y());
t.rotateRadians(sinb);
ss->path = t.map(ss->path);
ss->shapePath = t.map(ss->shapePath);
ss->ups[int(GripSlurSegment::BEZIER1)].p = t.map(p3);
ss->ups[int(GripSlurSegment::BEZIER2)].p = t.map(p4);
ss->ups[int(GripSlurSegment::END)].p = t.map(p2) - ss->ups[int(GripSlurSegment::END)].off * _spatium;
ss->ups[int(GripSlurSegment::DRAG)].p = t.map(p5);
ss->ups[int(GripSlurSegment::SHOULDER)].p = t.map(p6);
}
//---------------------------------------------------------
// layout
// p1, p2 are in System coordinates
//---------------------------------------------------------
void SlurSegment::layout(const QPointF& p1, const QPointF& p2)
{
ups[int(GripSlurSegment::START)].p = p1;
ups[int(GripSlurSegment::END)].p = p2;
slurTie()->computeBezier(this);
QRectF bbox = path.boundingRect();
// adjust position to avoid staff line if necessary
qreal sp = spatium();
qreal minDistance = 0.5;
Staff* st = staff();
autoAdjustOffset = QPointF();
if (bbox.height() < minDistance * 2 * sp && st) {
// slur/tie is fairly flat
bool up = slurTie()->up();
qreal staffY = system()->staff(staffIdx())->y();
qreal ld = st->lineDistance() * sp;
qreal topY = (bbox.top() - staffY) / ld;
qreal bottomY = (bbox.bottom() - staffY) / ld;
int lineY = up ? qRound(topY) : qRound(bottomY);
if (lineY >= 0 && lineY < st->lines() * st->lineDistance()) {
// on staff
if (qAbs(topY - lineY) < minDistance && qAbs(bottomY - lineY) < minDistance) {
// too close to line
if (!isNudged() && !isEdited()) {
// user has not nudged or edited
qreal offY;
if (up)
offY = (lineY - minDistance) - topY;
else
offY = (lineY + minDistance) - bottomY;
setAutoAdjust(0.0, offY * sp);
bbox = path.boundingRect();
}
}
}
}
setbbox(path.boundingRect());
adjustReadPos();
}
//---------------------------------------------------------
// setAutoAdjust
//---------------------------------------------------------
void SlurSegment::setAutoAdjust(const QPointF& offset)
{
QPointF diff = offset - autoAdjustOffset;
if (!diff.isNull()) {
path.translate(diff);
shapePath.translate(diff);
for (int i = 0; i < int(GripSlurSegment::GRIPS); ++i)
ups[i].p += diff;
autoAdjustOffset = offset;
}
}
//---------------------------------------------------------
// isEdited
//---------------------------------------------------------
bool SlurSegment::isEdited() const
{
for (int i = 0; i < int(GripSlurSegment::GRIPS); ++i) {
if (!ups[i].off.isNull())
return true;
}
return false;
}
//---------------------------------------------------------
// SlurTie
//---------------------------------------------------------
SlurTie::SlurTie(Score* s)
: Spanner(s)
{
_slurDirection = Direction::AUTO;
_up = true;
_lineType = 0; // default is solid
}
SlurTie::SlurTie(const SlurTie& t)
: Spanner(t)
{
_up = t._up;
_slurDirection = t._slurDirection;
_lineType = t._lineType;
}
//---------------------------------------------------------
// SlurTie
//---------------------------------------------------------
SlurTie::~SlurTie()
{
}
//---------------------------------------------------------
// fixArticulations
//---------------------------------------------------------
static qreal fixArticulations(qreal yo, Chord* c, qreal _up)
{
//
// handle special case of tenuto and staccato;
//
const QList<Articulation*>& al = c->articulations();
if (al.size() >= 2) {
Articulation* a = al.at(1);
if (a->articulationType() == ArticulationType::Tenuto || a->articulationType() == ArticulationType::Staccato)
return a->y() + (a->height() + c->score()->spatium() * .3) * _up;
}
else if (al.size() >= 1) {
Articulation* a = al.at(0);
if (a->articulationType() == ArticulationType::Tenuto || a->articulationType() == ArticulationType::Staccato)
return a->y() + (a->height() + c->score()->spatium() * .3) * _up;
}
return yo;
}
//---------------------------------------------------------
// slurPos
// Calculate position of start- and endpoint of slur
// relative to System() position.
//---------------------------------------------------------
void Slur::slurPosChord(SlurPos* sp)
{
Chord* stChord;
Chord* enChord ;
if(startChord()->isGraceAfter()){ // grace notes after, coming in reverse order
stChord = endChord();
enChord = startChord();
_up = false;
}
else{
stChord = startChord();
enChord = endChord();
}
Note* _startNote = stChord->downNote();
Note* _endNote = enChord->downNote();
qreal hw = _startNote->headWidth();
qreal __up = _up ? -1.0 : 1.0;
qreal _spatium = spatium();
sp->system1 = endChord()->measure()->system();
sp->system2 = sp->system1;
QPointF pp(sp->system1->pagePos());
qreal xo;
qreal yo;
//------p1
if (_up) {
xo = _startNote->x() + hw * 1.12;
yo = _startNote->pos().y() + hw * .3 * __up;
}
else {
xo = _startNote->x() + hw * 0.4;
yo = _startNote->pos().y() + _spatium * .75 * __up;
}
sp->p1 = stChord->pagePos() - pp + QPointF(xo, yo);
//------p2
if ((enChord->notes().size() > 1) || (enChord->stem() && !enChord->up() && !_up)) {
xo = _endNote->x() - hw * 0.12;
yo = _endNote->pos().y() + hw * .3 * __up;
}
else {
xo = _endNote->x() + hw * 0.15;
yo = _endNote->pos().y() + _spatium * .75 * __up;
}
sp->p2 = enChord->pagePos() - pp + QPointF(xo, yo);
}
//---------------------------------------------------------
// slurPos
// calculate position of start- and endpoint of slur
// relative to System() position
//---------------------------------------------------------
void Slur::slurPos(SlurPos* sp)
{
if (anchor() == Anchor::CHORD) {
slurPosChord(sp);
return;
}
qreal _spatium = spatium();
if (endCR() == 0) {
sp->p1 = startCR()->pagePos();
sp->p1.rx() += startCR()->width();
sp->p2 = sp->p1;
sp->p2.rx() += 5 * _spatium;
sp->system1 = startCR()->measure()->system();
sp->system2 = sp->system1;
return;
}
ChordRest* scr = startCR();
ChordRest* ecr = endCR();
Chord* sc = 0;
Note* note1 = 0;
if (startCR()->type() == ElementType::CHORD) {
sc = static_cast<Chord*>(startCR());
note1 = _up ? sc->upNote() : sc->downNote();
}
Chord* ec = 0;
Note* note2 = 0;
if (endCR()->type() == ElementType::CHORD) {
ec = static_cast<Chord*>(endCR());
note2 = _up ? ec->upNote() : ec->downNote();
}
sp->system1 = scr->measure()->system();
sp->system2 = ecr->measure()->system();
if (sp->system1 == 0 || sp->system2 == 0)
return;
sp->p1 = scr->pagePos() - sp->system1->pagePos();
sp->p2 = ecr->pagePos() - sp->system2->pagePos();
qreal xo, yo;
Stem* stem1 = sc?sc->stem():0;
Stem* stem2 = ec?ec->stem():0;
enum class SlurAnchor : char {
NONE, STEM
};
SlurAnchor sa1 = SlurAnchor::NONE;
SlurAnchor sa2 = SlurAnchor::NONE;
if ((scr->up() == ecr->up()) && !scr->beam() && !ecr->beam() && (_up == scr->up())) {
if (stem1)
sa1 = SlurAnchor::STEM;
if (stem2)
sa2 = SlurAnchor::STEM;
}
qreal __up = _up ? -1.0 : 1.0;
qreal hw = note1 ? note1->headWidth() : startCR()->width();
switch (sa1) {
case SlurAnchor::STEM: //sc can't be null
sp->p1 += sc->stemPos() - sc->pagePos() + sc->stem()->p2();
sp->p1 += QPointF(0.35 * _spatium, 0.25 * _spatium);
break;
case SlurAnchor::NONE:
break;
}
switch(sa2) {
case SlurAnchor::STEM: //ec can't be null
sp->p2 += ec->stemPos() - ec->pagePos() + ec->stem()->p2();
sp->p2 += QPointF(-0.35 * _spatium, 0.25 * _spatium);
break;
case SlurAnchor::NONE:
break;
}
//
// default position:
// horizontal: middle of note head
// vertical: _spatium * .4 above/below note head
//
//------p1
bool stemPos = false; // p1 starts at chord stem side
if (note1)
yo = note1->pos().y();
else if(_up)
yo = startCR()->bbox().top();
else
yo = startCR()->bbox().top() + startCR()->height();
yo += _spatium * .9 * __up;
xo = hw * .5;
if (stem1) { //sc not null
Beam* beam1 = sc->beam();
if (beam1 && (beam1->elements().back() != sc) && (sc->up() == _up)) {
qreal sh = stem1->height() + _spatium;
if (_up)
yo = sc->downNote()->pos().y() - sh;
else
yo = sc->upNote()->pos().y() + sh;
xo = stem1->pos().x();
stemPos = true;
}
else {
if (sc->up() && _up)
xo = hw + _spatium * .3;
//
// handle case: stem up - stem down
// stem down - stem up
//
if ((sc->up() != ecr->up()) && (sc->up() == _up)) {
Note* n1 = sc->up() ? sc->downNote() : sc->upNote();
Note* n2 = 0;
if(ec)
n2 = ec->up() ? ec->downNote() : ec->upNote();
qreal yd = (n2 ? n2->pos().y() : endCR()->pos().y()) - n1->pos().y();
yd *= .5;
qreal sh = stem1->height(); // limit y move
if (yd > 0.0) {
if (yd > sh)
yd = sh;
}
else {
if (yd < - sh)
yd = -sh;
}
stemPos = true;
if ((_up && (yd < -_spatium)) || (!_up && (yd > _spatium)))
yo += yd;
}
else if (sc->up() != _up)
yo = fixArticulations(yo, sc, __up);
}
}
if (sa1 == SlurAnchor::NONE)
sp->p1 += QPointF(xo, yo);
//------p2
xo = hw * .5;
if (note2)
yo = note2->pos().y();
else if(_up)
yo = endCR()->bbox().top();
else
yo = endCR()->bbox().top() + endCR()->height();
yo += _spatium * .9 * __up;
if (stem2) { //ec can't be null
Beam* beam2 = ec->beam();
if ((stemPos && (scr->up() == ec->up()))
|| (beam2
&& (!beam2->elements().isEmpty())
&& (beam2->elements().front() != ec)
&& (ec->up() == _up)
&& sc && (sc->noteType() == NoteType::NORMAL)
)
) {
qreal sh = stem2->height() + _spatium;
if (_up)
yo = ec->downNote()->pos().y() - sh;
else
yo = ec->upNote()->pos().y() + sh;
xo = stem2->pos().x();
}
else if (!ec->up() && !_up)
xo = -_spatium * .3 + note2->x();
//
// handle case: stem up - stem down
// stem down - stem up
//
if ((scr->up() != ec->up()) && (ec->up() == _up)) {
Note* n1 = 0;
if(sc)
sc->up() ? sc->downNote() : sc->upNote();
Note* n2 = ec->up() ? ec->downNote() : ec->upNote();
qreal yd = n2->pos().y() - (n1 ? n1->pos().y() : startCR()->pos().y());
yd *= .5;
qreal mh = stem2->height(); // limit y move
if (yd > 0.0) {
if (yd > mh)
yd = mh;
}
else {
if (yd < - mh)
yd = -mh;
}
if ((_up && (yd > _spatium)) || (!_up && (yd < -_spatium)))
yo -= yd;
}
else if (ec->up() != _up)
yo = fixArticulations(yo, ec, __up);
}
if (sa2 == SlurAnchor::NONE)
sp->p2 += QPointF(xo, yo);
}
//---------------------------------------------------------
// writeProperties
//---------------------------------------------------------
void SlurTie::writeProperties(Xml& xml) const
{
Element::writeProperties(xml);
if(track() != track2() && track2() != -1)
xml.tag("track2", track2());
int idx = 0;
foreach(const SpannerSegment* ss, spannerSegments())
((SlurSegment*)ss)->write(xml, idx++);
if (_slurDirection != Direction::AUTO)
xml.tag("up", int(_slurDirection));
if (_lineType)
xml.tag("lineType", _lineType);
}
//---------------------------------------------------------
// readProperties
//---------------------------------------------------------
bool SlurTie::readProperties(XmlReader& e)
{
const QStringRef& tag(e.name());
if (tag == "SlurSegment") {
int idx = e.intAttribute("no", 0);
int n = spannerSegments().size();
for (int i = n; i < idx; ++i)
add(new SlurSegment(score()));
SlurSegment* segment = new SlurSegment(score());
segment->read(e);
add(segment);
}
else if (tag == "up")
_slurDirection = Direction(e.readInt());
else if (tag == "lineType")
_lineType = e.readInt();
else if (!Element::readProperties(e))
return false;
return true;
}
//---------------------------------------------------------
// undoSetLineType
//---------------------------------------------------------
void SlurTie::undoSetLineType(int t)
{
score()->undoChangeProperty(this, P_ID::LINE_TYPE, t);
}
//---------------------------------------------------------
// undoSetSlurDirection
//---------------------------------------------------------
void SlurTie::undoSetSlurDirection(Direction d)
{
score()->undoChangeProperty(this, P_ID::SLUR_DIRECTION, int(d));
}
//---------------------------------------------------------
// reset
//---------------------------------------------------------
void SlurTie::reset()
{
score()->undoChangeProperty(this, P_ID::USER_OFF, QPointF());
}
//---------------------------------------------------------
// getProperty
//---------------------------------------------------------
QVariant SlurTie::getProperty(P_ID propertyId) const
{
switch(propertyId) {
case P_ID::LINE_TYPE: return lineType();
case P_ID::SLUR_DIRECTION: return int(slurDirection());
default:
return Spanner::getProperty(propertyId);
}
}
//---------------------------------------------------------
// setProperty
//---------------------------------------------------------
bool SlurTie::setProperty(P_ID propertyId, const QVariant& v)
{
switch(propertyId) {
case P_ID::LINE_TYPE: setLineType(v.toInt()); break;
case P_ID::SLUR_DIRECTION: setSlurDirection(Direction(v.toInt())); break;
default:
return Spanner::setProperty(propertyId, v);
}
return true;
}
//---------------------------------------------------------
// propertyDefault
//---------------------------------------------------------
QVariant SlurTie::propertyDefault(P_ID id) const
{
switch (id) {
case P_ID::LINE_TYPE:
return 0;
case P_ID::SLUR_DIRECTION:
return int(Direction::AUTO);
default:
return Spanner::propertyDefault(id);
}
}
//---------------------------------------------------------
// getProperty
//---------------------------------------------------------
QVariant SlurSegment::getProperty(P_ID propertyId) const
{
switch(propertyId) {
case P_ID::LINE_TYPE:
case P_ID::SLUR_DIRECTION:
return slurTie()->getProperty(propertyId);
default:
return SpannerSegment::getProperty(propertyId);
}
}
//---------------------------------------------------------
// setProperty
//---------------------------------------------------------
bool SlurSegment::setProperty(P_ID propertyId, const QVariant& v)
{
switch(propertyId) {
case P_ID::LINE_TYPE:
case P_ID::SLUR_DIRECTION:
return slurTie()->setProperty(propertyId, v);
default:
return SpannerSegment::setProperty(propertyId, v);
}
return true;
}
//---------------------------------------------------------
// propertyDefault
//---------------------------------------------------------
QVariant SlurSegment::propertyDefault(P_ID id) const
{
switch (id) {
case P_ID::LINE_TYPE:
case P_ID::SLUR_DIRECTION:
return slurTie()->propertyDefault(id);
default:
return SpannerSegment::propertyDefault(id);
}
}
//---------------------------------------------------------
// reset
//---------------------------------------------------------
void SlurSegment::reset()
{
score()->undoChangeProperty(this, P_ID::USER_OFF, QPointF());
score()->undo(new ChangeSlurOffsets(this, QPointF(), QPointF(), QPointF(), QPointF()));
for (int i = 0; i < int(GripSlurSegment::GRIPS); ++i)
ups[i].off = QPointF();
parent()->reset();
parent()->layout();
}
//---------------------------------------------------------
// Slur
//---------------------------------------------------------
Slur::Slur(Score* s)
: SlurTie(s)
{
setId(-1);
setAnchor(Anchor::SEGMENT);
}
//---------------------------------------------------------
// Slur
//---------------------------------------------------------
Slur::~Slur()
{
}
//---------------------------------------------------------
// write
//---------------------------------------------------------
void Slur::write(Xml& xml) const
{
xml.stag(QString("Slur id=\"%1\"").arg(id()));
SlurTie::writeProperties(xml);
xml.etag();
}
//---------------------------------------------------------
// read
//---------------------------------------------------------
void Slur::read(XmlReader& e)
{
setTrack(e.track()); // set staff
setId(e.intAttribute("id"));
while (e.readNextStartElement()) {
const QStringRef& tag(e.name());
if (tag == "track2")
setTrack2(e.readInt());
else if (tag == "startTrack") // obsolete
setTrack(e.readInt());
else if (tag == "endTrack") // obsolete
e.readInt();
else if (!SlurTie::readProperties(e))
e.unknown();
}
if (track2() == -1)
setTrack2(track());
}
//---------------------------------------------------------
// chordsHaveTie
//---------------------------------------------------------
static bool chordsHaveTie(Chord* c1, Chord* c2)
{
int n1 = c1->notes().size();
for (int i1 = 0; i1 < n1; ++i1) {
Note* n1 = c1->notes().at(i1);
int n2 = c2->notes().size();
for (int i2 = 0; i2 < n2; ++i2) {
Note* n2 = c2->notes().at(i2);
if (n1->tieFor() && n1->tieFor() == n2->tieBack())
return true;
}
}
return false;
}
//---------------------------------------------------------
// directionMixture
//---------------------------------------------------------
static bool isDirectionMixture(Chord* c1, Chord* c2)
{
bool up = c1->up();
for (Segment* seg = c1->segment(); seg; seg = seg->next(SegmentType::ChordRest)) {
Chord* c = static_cast<Chord*>(seg->element(c1->track()));
if (!c || c->type() != ElementType::CHORD)
continue;
if (c->up() != up)
return true;
if (seg == c2->segment())
break;
}
return false;
}
//---------------------------------------------------------
// layout
//---------------------------------------------------------
void Slur::layout()
{
if (anchor() == Anchor::CHORD) {
layoutChord();
return;
}
if (track2() == -1)
setTrack2(track());
qreal _spatium = spatium();
if (score() == gscore || tick() == -1) {
//
// when used in a palette, slur has no parent and
// tick and tick2 has no meaning so no layout is
// possible and needed
//
SlurSegment* s;
if (spannerSegments().isEmpty()) {
s = new SlurSegment(score());
s->setTrack(track());
add(s);
}
else {
s = frontSegment();
}
s->setSpannerSegmentType(SpannerSegmentType::SINGLE);
s->layout(QPointF(0, 0), QPointF(_spatium * 6, 0));
setbbox(frontSegment()->bbox());
return;
}
if (anchor() == Spanner::Anchor::SEGMENT) {
computeStartElement();
computeEndElement();
}
if (startCR() == 0 || endCR() == 0) {
qDebug("Slur::layout(): id %d track %d-%d %p - %p tick %d-%d null anchor",
id(), track(), track2(), startCR(), endCR(), tick(), tick2());
return;
}
switch (_slurDirection) {
case Direction::UP:
_up = true;
break;
case Direction::DOWN:
_up = false;
break;
case Direction::AUTO:
{
//
// assumption:
// slurs have only chords or rests as start/end elements
//
if (startCR() == 0 || endCR() == 0) {
_up = true;
break;
}
Measure* m1 = startCR()->measure();
Chord* c1 = (startCR()->type() == ElementType::CHORD) ? static_cast<Chord*>(startCR()) : 0;
Chord* c2 = (endCR()->type() == ElementType::CHORD) ? static_cast<Chord*>(endCR()) : 0;
_up = !(startCR()->up());
if ((endCR()->tick() - startCR()->tick()) > m1->ticks()) {
// long slurs are always above
_up = true;
}
else
_up = !(startCR()->up());
if (c1 && c2 && isDirectionMixture(c1, c2) && (c1->noteType() == NoteType::NORMAL)) {
// slurs go above if start and end note have different stem directions,
// but grace notes are exceptions
_up = true;
}
else if (m1->mstaff(startCR()->staffIdx())->hasVoices && c1 && c1->noteType() == NoteType::NORMAL) {
// in polyphonic passage, slurs go on the stem side
_up = startCR()->up();
}
else if (c1 && c2 && chordsHaveTie(c1, c2)) {
// could confuse slur with tie, put slur on stem side
_up = startCR()->up();
}
}
break;
}
SlurPos sPos;
slurPos(&sPos);
QList<System*>* sl = score()->systems();
iSystem is = sl->begin();
while (is != sl->end()) {
if (*is == sPos.system1)
break;
++is;
}
if (is == sl->end())
qDebug("Slur::layout first system not found");
setPos(0, 0);
//---------------------------------------------------------
// count number of segments, if no change, all
// user offsets (drags) are retained
//---------------------------------------------------------
unsigned nsegs = 1;
for (iSystem iis = is; iis != sl->end(); ++iis) {
if ((*iis)->isVbox())
continue;
if (*iis == sPos.system2)
break;
++nsegs;
}
fixupSegments(nsegs);
for (int i = 0; is != sl->end(); ++i, ++is) {
System* system = *is;
if (system->isVbox()) {
--i;
continue;
}
SlurSegment* segment = segmentAt(i);
segment->setSystem(system);
// case 1: one segment
if (sPos.system1 == sPos.system2) {
segment->setSpannerSegmentType(SpannerSegmentType::SINGLE);
segment->layout(sPos.p1, sPos.p2);
}
// case 2: start segment
else if (i == 0) {
segment->setSpannerSegmentType(SpannerSegmentType::BEGIN);
qreal x = system->bbox().width();
segment->layout(sPos.p1, QPointF(x, sPos.p1.y()));
}
// case 3: middle segment
else if (i != 0 && system != sPos.system2) {
segment->setSpannerSegmentType(SpannerSegmentType::MIDDLE);
qreal x1 = firstNoteRestSegmentX(system) - _spatium;
qreal x2 = system->bbox().width();
qreal y = system->staff(staffIdx())->y();
segment->layout(QPointF(x1, y), QPointF(x2, y));
}
// case 4: end segment
else {
segment->setSpannerSegmentType(SpannerSegmentType::END);
qreal x = firstNoteRestSegmentX(system) - _spatium;
segment->layout(QPointF(x, sPos.p2.y()), sPos.p2);
}
if (system == sPos.system2)
break;
}
setbbox(spannerSegments().isEmpty() ? QRectF() : frontSegment()->bbox());
}
//---------------------------------------------------------
// firstNoteRestSegmentX
// in System() coordinates
//---------------------------------------------------------
qreal SlurTie::firstNoteRestSegmentX(System* system)
{
foreach(const MeasureBase* mb, system->measures()) {
if (mb->type() == ElementType::MEASURE) {
const Measure* measure = static_cast<const Measure*>(mb);
for (const Segment* seg = measure->first(); seg; seg = seg->next()) {
if (seg->segmentType() == SegmentType::ChordRest) {
return seg->pos().x() + seg->measure()->pos().x();
}
}
}
}
qDebug("firstNoteRestSegmentX: did not find segment");
return 0.0;
}
//---------------------------------------------------------
// setTrack
//---------------------------------------------------------
void Slur::setTrack(int n)
{
Element::setTrack(n);
foreach(SpannerSegment* ss, spannerSegments())
ss->setTrack(n);
}
//---------------------------------------------------------
// fixupSegments
//---------------------------------------------------------
void SlurTie::fixupSegments(unsigned nsegs)
{
unsigned onsegs = spannerSegments().size();
if (nsegs > onsegs) {
for (unsigned i = onsegs; i < nsegs; ++i) {
SlurSegment* s;
if (!delSegments.isEmpty()) {
s = delSegments.dequeue();
}
else {
s = new SlurSegment(score());
}
s->setTrack(track());
add(s);
}
}
else if (nsegs < onsegs) {
for (unsigned i = nsegs; i < onsegs; ++i) {
SlurSegment* s = takeLastSegment();
s->setSystem(0);
delSegments.enqueue(s); // cannot delete: used in SlurSegment->edit()
}
}
}
//---------------------------------------------------------
// layoutChord
//---------------------------------------------------------
void Slur::layoutChord()
{
qreal _spatium = spatium();
//
// show short bow
//
if (startChord() == 0 || endChord() == 0) {
qDebug("no start/end chord");
return;
}
Chord* c1 = startChord();
// Chord* c2 = endChord();
Note* startNote = c1->upNote();
// Note* endNote = c2->upNote();
if (_slurDirection == Direction::AUTO)
_up = false;
else
_up = _slurDirection == Direction::UP ? true : false;
qreal w = startNote->headWidth();
qreal xo1 = w * 1.12;
qreal h = w * 0.3;
qreal yo = _up ? -h : h;
QPointF off1(xo1, yo);
QPointF off2(0.0, yo);
QPointF ppos(pagePos());
// TODO: cleanup
SlurPos sPos;
slurPos(&sPos);
// p1, p2, s1, s2
QList<System*>* systems = score()->systems();
setPos(0, 0);
//---------------------------------------------------------
// count number of segments, if no change, all
// user offsets (drags) are retained
//---------------------------------------------------------
int sysIdx1 = systems->indexOf(sPos.system1);
if (sysIdx1 == -1) {
qDebug("system not found");
foreach(System* s, *systems)
qDebug(" search %p in %p", sPos.system1, s);
return;
}
int sysIdx2 = systems->indexOf(sPos.system2);
if (sysIdx2 < 0)
sysIdx2 = sysIdx1;
unsigned nsegs = sysIdx2 - sysIdx1 + 1;
fixupSegments(nsegs);
int i = 0;
for (uint ii = 0; ii < nsegs; ++ii) {
System* system = (*systems)[sysIdx1++];
if (system->isVbox())
continue;
SlurSegment* segment = segmentAt(i);
segment->setSystem(system);
// case 1: one segment
if (sPos.system1 == sPos.system2) {
segment->layout(sPos.p1, sPos.p2);
segment->setSpannerSegmentType(SpannerSegmentType::SINGLE);
}
// case 2: start segment
else if (i == 0) {
qreal x = system->bbox().width();
segment->layout(sPos.p1, QPointF(x, sPos.p1.y()));
segment->setSpannerSegmentType(SpannerSegmentType::BEGIN);
}
// case 4: end segment
else {
qreal x = firstNoteRestSegmentX(system) - 2 * _spatium;
segment->layout(QPointF(x, sPos.p2.y()), sPos.p2);
segment->setSpannerSegmentType(SpannerSegmentType::END);
}
++i;
}
}
}