1211 lines
46 KiB
C++
1211 lines
46 KiB
C++
//=============================================================================
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// MuseScore
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// Music Composition & Notation
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//
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// Copyright (C) 2002-2016 Werner Schweer
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License version 2
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// as published by the Free Software Foundation and appearing in
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// the file LICENCE.GPL
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//=============================================================================
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#include "measure.h"
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#include "score.h"
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#include "system.h"
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#include "undo.h"
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#include "chord.h"
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#include "stem.h"
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#include "slur.h"
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#include "tie.h"
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#include "part.h"
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#include "navigate.h"
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#include "articulation.h"
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namespace Ms {
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Element* SlurTie::editEndElement;
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Element* SlurTie::editStartElement;
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QList<SlurOffsets> SlurTie::editUps;
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//---------------------------------------------------------
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// draw
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//---------------------------------------------------------
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void SlurSegment::draw(QPainter* painter) const
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{
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QPen pen(curColor());
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switch (slurTie()->lineType()) {
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case 0:
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painter->setBrush(QBrush(pen.color()));
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pen.setCapStyle(Qt::RoundCap);
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pen.setJoinStyle(Qt::RoundJoin);
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pen.setWidthF(score()->styleP(Sid::SlurEndWidth));
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break;
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case 1:
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painter->setBrush(Qt::NoBrush);
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pen.setWidthF(score()->styleP(Sid::SlurDottedWidth));
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pen.setStyle(Qt::DotLine);
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break;
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case 2:
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painter->setBrush(Qt::NoBrush);
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pen.setWidthF(score()->styleP(Sid::SlurDottedWidth));
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pen.setStyle(Qt::DashLine);
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break;
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case 3:
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painter->setBrush(Qt::NoBrush);
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pen.setWidthF(score()->styleP(Sid::SlurDottedWidth));
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pen.setStyle(Qt::CustomDashLine);
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QVector<qreal> dashes { 5.0, 5.0 };
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pen.setDashPattern(dashes);
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break;
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}
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painter->setPen(pen);
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painter->drawPath(path);
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}
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//---------------------------------------------------------
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// updateGrips
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// return grip rectangles in page coordinates
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//---------------------------------------------------------
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void SlurSegment::updateGrips(EditData& ed) const
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{
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QPointF p(pagePos());
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for (int i = 0; i < ed.grips; ++i)
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ed.grip[i].translate(_ups[i].p + _ups[i].off + p);
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}
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//---------------------------------------------------------
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// searchCR
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//---------------------------------------------------------
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static ChordRest* searchCR(Segment* segment, int startTrack, int endTrack)
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{
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// for (Segment* s = segment; s; s = s->next1MM(SegmentType::ChordRest)) {
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for (Segment* s = segment; s; s = s->next(SegmentType::ChordRest)) { // restrict search to measure
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if (startTrack > endTrack) {
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for (int t = startTrack-1; t >= endTrack; --t) {
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if (s->element(t))
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return toChordRest(s->element(t));
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}
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}
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else {
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for (int t = startTrack; t < endTrack; ++t) {
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if (s->element(t))
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return toChordRest(s->element(t));
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}
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}
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}
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return 0;
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}
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//---------------------------------------------------------
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// edit
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// return true if event is accepted
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//---------------------------------------------------------
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bool SlurSegment::edit(EditData& ed)
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{
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Slur* sl = slur();
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if (ed.key == Qt::Key_X) {
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sl->undoChangeProperty(Pid::SLUR_DIRECTION, QVariant::fromValue<Direction>(sl->up() ? Direction::DOWN : Direction::UP));
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sl->layout();
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return true;
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}
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if (ed.key == Qt::Key_Home) {
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ups(ed.curGrip).off = QPointF(); //TODO
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sl->layout();
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return true;
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}
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if (!((ed.modifiers & Qt::ShiftModifier) && (isSingleType() || (isBeginType() && ed.curGrip == Grip::START) || (isEndType() && ed.curGrip == Grip::END))))
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return false;
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ChordRest* cr = 0;
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ChordRest* e;
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ChordRest* e1;
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if (ed.curGrip == Grip::START) {
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e = sl->startCR();
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e1 = sl->endCR();
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}
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else {
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e = sl->endCR();
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e1 = sl->startCR();
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}
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if (ed.key == Qt::Key_Left)
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cr = prevChordRest(e);
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else if (ed.key == Qt::Key_Right)
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cr = nextChordRest(e);
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else if (ed.key == Qt::Key_Up) {
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Part* part = e->part();
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int startTrack = part->startTrack();
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int endTrack = e->track();
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cr = searchCR(e->segment(), endTrack, startTrack);
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}
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else if (ed.key == Qt::Key_Down) {
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int startTrack = e->track() + 1;
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Part* part = e->part();
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int endTrack = part->endTrack();
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cr = searchCR(e->segment(), startTrack, endTrack);
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}
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if (cr && cr != e1)
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changeAnchor(ed, cr);
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return true;
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}
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//---------------------------------------------------------
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// changeAnchor
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//---------------------------------------------------------
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void SlurSegment::changeAnchor(EditData& ed, Element* element)
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{
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if (ed.curGrip == Grip::START) {
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int ticks = spanner()->endElement()->tick() - element->tick();
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spanner()->undoChangeProperty(Pid::SPANNER_TICK, element->tick());
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spanner()->undoChangeProperty(Pid::SPANNER_TICKS, ticks);
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spanner()->undoChangeProperty(Pid::TRACK, element->track());
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if (score()->spannerMap().removeSpanner(spanner()))
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score()->addSpanner(spanner());
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}
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else {
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spanner()->undoChangeProperty(Pid::SPANNER_TICKS, element->tick() - spanner()->startElement()->tick());
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spanner()->undoChangeProperty(Pid::SPANNER_TRACK2, element->track());
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}
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const size_t segments = spanner()->spannerSegments().size();
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ups(ed.curGrip).off = QPointF();
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spanner()->layout();
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if (spanner()->spannerSegments().size() != segments) {
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const std::vector<SpannerSegment*>& ss = spanner()->spannerSegments();
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SlurSegment* newSegment = toSlurSegment(ed.curGrip == Grip::END ? ss.back() : ss.front());
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ed.view->startEdit(newSegment, ed.curGrip);
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triggerLayout();
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}
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}
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//---------------------------------------------------------
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// computeBezier
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// compute help points of slur bezier segment
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//---------------------------------------------------------
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void SlurSegment::computeBezier(QPointF p6o)
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{
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qreal _spatium = spatium();
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qreal shoulderW; // height as fraction of slur-length
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qreal shoulderH;
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//
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// pp1 and pp2 are the end points of the slur
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//
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QPointF pp1 = ups(Grip::START).p + ups(Grip::START).off;
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QPointF pp2 = ups(Grip::END).p + ups(Grip::END).off;
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QPointF p2 = pp2 - pp1;
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if ((p2.x() == 0.0) && (p2.y() == 0.0)) {
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Measure* m1 = slur()->startCR()->segment()->measure();
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Measure* m2 = slur()->endCR()->segment()->measure();
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qDebug("zero slur at tick %d(%d) track %d in measure %d-%d tick %d ticks %d",
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m1->tick(), tick(), track(), m1->no(), m2->no(), slur()->tick(), slur()->ticks());
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slur()->setBroken(true);
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return;
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}
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qreal sinb = atan(p2.y() / p2.x());
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QTransform t;
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t.rotateRadians(-sinb);
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p2 = t.map(p2);
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p6o = t.map(p6o);
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double smallH = 0.5;
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qreal d = p2.x() / _spatium;
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if (d <= 2.0) {
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shoulderH = d * 0.5 * smallH * _spatium;
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shoulderW = .6;
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}
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else {
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qreal dd = log10(1.0 + (d - 2.0) * .5) * 2.0;
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if (dd > 3.0)
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dd = 3.0;
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shoulderH = (dd + smallH) * _spatium;
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if (d > 18.0)
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shoulderW = 0.7; // 0.8;
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else if (d > 10)
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shoulderW = 0.6; // 0.7;
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else
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shoulderW = 0.5; // 0.6;
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}
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shoulderH -= p6o.y();
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if (!slur()->up())
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shoulderH = -shoulderH;
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qreal c = p2.x();
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qreal c1 = (c - c * shoulderW) * .5 + p6o.x();
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qreal c2 = c1 + c * shoulderW + p6o.x();
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QPointF p5 = QPointF(c * .5, 0.0);
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QPointF p3(c1, -shoulderH);
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QPointF p4(c2, -shoulderH);
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qreal w = score()->styleP(Sid::SlurMidWidth) - score()->styleP(Sid::SlurEndWidth);
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if ((c2 - c1) <= _spatium)
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w *= .5;
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QPointF th(0.0, w); // thickness of slur
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QPointF p3o = p6o + t.map(ups(Grip::BEZIER1).off);
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QPointF p4o = p6o + t.map(ups(Grip::BEZIER2).off);
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if (!p6o.isNull()) {
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QPointF p6i = t.inverted().map(p6o);
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ups(Grip::BEZIER1).off += p6i ;
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ups(Grip::BEZIER2).off += p6i;
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}
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//-----------------------------------calculate p6
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QPointF pp3 = p3 + p3o;
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QPointF pp4 = p4 + p4o;
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QPointF ppp4 = pp4 - pp3;
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qreal r2 = atan(ppp4.y() / ppp4.x());
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t.reset();
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t.rotateRadians(-r2);
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QPointF p6 = QPointF(t.map(ppp4).x() * .5, 0.0);
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t.rotateRadians(2 * r2);
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p6 = t.map(p6) + pp3 - p6o;
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//-----------------------------------
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path = QPainterPath();
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path.moveTo(QPointF());
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path.cubicTo(p3 + p3o - th, p4 + p4o - th, p2);
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if (slur()->lineType() == 0)
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path.cubicTo(p4 +p4o + th, p3 + p3o + th, QPointF());
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th = QPointF(0.0, 3.0 * w);
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shapePath = QPainterPath();
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shapePath.moveTo(QPointF());
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shapePath.cubicTo(p3 + p3o - th, p4 + p4o - th, p2);
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shapePath.cubicTo(p4 +p4o + th, p3 + p3o + th, QPointF());
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// translate back
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t.reset();
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t.translate(pp1.x(), pp1.y());
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t.rotateRadians(sinb);
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path = t.map(path);
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shapePath = t.map(shapePath);
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ups(Grip::BEZIER1).p = t.map(p3);
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ups(Grip::BEZIER2).p = t.map(p4);
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ups(Grip::END).p = t.map(p2) - ups(Grip::END).off;
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ups(Grip::DRAG).p = t.map(p5);
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ups(Grip::SHOULDER).p = t.map(p6);
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QPainterPath p;
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p.moveTo(QPointF());
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p.cubicTo(p3 + p3o, p4 + p4o, p2);
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p = t.map(p);
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_shape.clear();
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QPointF start = pp1;
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int nbShapes = 32; // (pp2.x() - pp1.x()) / _spatium;
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qreal minH = qAbs(3 * w);
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for (int i = 1; i <= nbShapes; i++) {
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QPointF point = p.pointAtPercent(i/float(nbShapes));
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QRectF re = QRectF(start, point).normalized();
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if (re.height() < minH) {
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qreal d1 = (minH - re.height()) * .5;
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re.adjust(0.0, -d1, 0.0, d1);
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}
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_shape.add(re);
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start = point;
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}
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}
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//---------------------------------------------------------
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// slurDistance
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//---------------------------------------------------------
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inline static qreal slurDistance(const Shape& shape, const QPointF& pt, qreal sdist, bool up)
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{
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qreal ddy;
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if (up) {
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ddy = -shape.bottomDistance(pt) + sdist;
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if (ddy <= 0.0) // assume no more collisions
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ddy = 0.0;
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}
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else {
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ddy = shape.topDistance(pt) - sdist;
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if (ddy >= 0.0)
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ddy = 0.0;
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}
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return ddy;
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}
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//---------------------------------------------------------
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// layoutSegment
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//---------------------------------------------------------
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void SlurSegment::layoutSegment(const QPointF& p1, const QPointF& p2)
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{
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setPos(QPointF());
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ups(Grip::START).p = p1;
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ups(Grip::END).p = p2;
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computeBezier();
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if (MScore::autoplaceSlurs && autoplace() && system()) {
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bool up = slur()->up();
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qreal gdist = 0.0;
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Segment* ls = system()->lastMeasure()->last();
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Segment* fs = system()->firstMeasure()->first();
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Segment* ss = slur()->startSegment();
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Segment* es = slur()->endSegment();
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QPointF pp1 = ups(Grip::START).p;
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QPointF pp2 = ups(Grip::END).p;
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bool intersection = false;
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for (Segment* s = fs; s && s != ls; s = s->next1()) {
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if (!s->enabled())
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continue;
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// skip start and end segments on assumption start and end points were placed well already
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// this avoids overcorrection on collision with own ledger lines and accidentals
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// it also avoids issues where slur appears to be attached to a note in a different voice
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if (s == ss || s == es)
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continue;
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// allow slurs to cross barlines
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if (s->segmentType() & SegmentType::BarLineType)
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continue;
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qreal x1 = s->x() + s->measure()->x();
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qreal x2 = x1 + s->width();
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if (pp1.x() > x2)
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continue;
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if (pp2.x() < x1)
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break;
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const Shape& segShape = s->staffShape(staffIdx()).translated(s->pos() + s->measure()->pos());
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if (!intersection)
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intersection = segShape.intersects(_shape);
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if (up) {
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//QPointF pt = QPointF(s->x() + s->measure()->x(), s->staffShape(staffIdx()).top() + s->y() + s->measure()->y());
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qreal dist = _shape.minVerticalDistance(segShape);
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if (dist > 0.0)
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gdist = qMax(gdist, dist);
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}
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else {
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//QPointF pt = QPointF(s->x() + s->measure()->x(), s->staffShape(staffIdx()).bottom() + s->y() + s->measure()->y());
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qreal dist = segShape.minVerticalDistance(_shape);
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if (dist > 0.0)
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gdist = qMax(gdist, dist);
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}
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}
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if (intersection && gdist > 0.0) {
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qreal min = score()->styleP(Sid::SlurMinDistance) + gdist;
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rypos() += up ? -min : min;
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}
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}
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setbbox(path.boundingRect());
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}
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//---------------------------------------------------------
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// isEdited
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//---------------------------------------------------------
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bool SlurSegment::isEdited() const
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{
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for (int i = 0; i < int(Grip::GRIPS); ++i) {
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if (!_ups[i].off.isNull())
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return true;
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}
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return false;
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}
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//---------------------------------------------------------
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// fixArticulations
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//---------------------------------------------------------
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static qreal fixArticulations(qreal yo, Chord* c, qreal _up, bool stemSide = false)
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{
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//
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// handle special case of tenuto and staccato
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// yo = current offset of slur from chord position
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// return unchanged position, or position of outmost "close" articulation
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//
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#if 1
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for (Articulation* a : c->articulations()) {
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if (!a->layoutCloseToNote() || !a->autoplace() || !a->visible())
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continue;
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// skip if articulation on stem side but slur is not or vice versa
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if ((a->up() == c->up()) != stemSide)
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continue;
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if (a->up())
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yo = qMin(yo, a->y() + (a->height() + c->score()->spatium() * .3) * _up);
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else
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yo = qMax(yo, a->y() + (a->height() + c->score()->spatium() * .3) * _up);
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}
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return yo;
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#else
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const QVector<Articulation*>& al = c->articulations();
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if (al.size() >= 2) {
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Articulation* a = al.at(1);
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if (a->up() == c->up() && !stemSide)
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return yo;
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else if (a->layoutCloseToNote())
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return a->y() + (a->height() + c->score()->spatium() * .3) * _up;
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}
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else if (al.size() >= 1) {
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Articulation* a = al.at(0);
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if (a->up() == c->up() && !stemSide)
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return yo;
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else if (a->layoutCloseToNote())
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return a->y() + (a->height() + c->score()->spatium() * .3) * _up;
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}
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return yo;
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#endif
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}
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//---------------------------------------------------------
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// slurPos
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// Calculate position of start- and endpoint of slur
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// relative to System() position.
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//---------------------------------------------------------
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void Slur::slurPosChord(SlurPos* sp)
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{
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Chord* stChord;
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Chord* enChord ;
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if (startChord()->isGraceAfter()){ // grace notes after, coming in reverse order
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stChord = endChord();
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enChord = startChord();
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_up = false;
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}
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else {
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stChord = startChord();
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enChord = endChord();
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}
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Note* _startNote = stChord->downNote();
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Note* _endNote = enChord->downNote();
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qreal hw = _startNote->bboxRightPos();
|
|
qreal __up = _up ? -1.0 : 1.0;
|
|
qreal _spatium = spatium();
|
|
|
|
Measure* measure = endChord()->measure();
|
|
sp->system1 = measure->system();
|
|
if (!sp->system1) { // DEBUG
|
|
qDebug("no system1");
|
|
return;
|
|
}
|
|
Q_ASSERT(sp->system1);
|
|
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)
|
|
{
|
|
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;
|
|
}
|
|
|
|
bool useTablature = staff() && staff()->isTabStaff(endCR()->tick());
|
|
bool staffHasStems = true; // assume staff uses stems
|
|
const StaffType* stt = 0;
|
|
if (useTablature) {
|
|
stt = staff()->staffType(tick());
|
|
staffHasStems = stt->stemThrough(); // if tab with stems beside, stems do not count for slur pos
|
|
}
|
|
|
|
// start and end cr, chord, and note
|
|
ChordRest* scr = startCR();
|
|
ChordRest* ecr = endCR();
|
|
Chord* sc = 0;
|
|
Note* note1 = 0;
|
|
if (scr->isChord()) {
|
|
sc = toChord(scr);
|
|
note1 = _up ? sc->upNote() : sc->downNote();
|
|
}
|
|
Chord* ec = 0;
|
|
Note* note2 = 0;
|
|
if (ecr->isChord()) {
|
|
ec = toChord(ecr);
|
|
note2 = _up ? ec->upNote() : ec->downNote();
|
|
}
|
|
|
|
sp->system1 = scr->measure()->system();
|
|
sp->system2 = ecr->measure()->system();
|
|
|
|
if (sp->system1 == 0) {
|
|
qDebug("no system1");
|
|
return;
|
|
}
|
|
|
|
sp->p1 = scr->pos() + scr->segment()->pos() + scr->measure()->pos();
|
|
sp->p2 = ecr->pos() + ecr->segment()->pos() + ecr->measure()->pos();
|
|
|
|
// account for centering or other adjustments (other than mirroring)
|
|
if (note1 && !note1->mirror())
|
|
sp->p1.rx() += note1->x();
|
|
if (note2 && !note2->mirror())
|
|
sp->p2.rx() += note2->x();
|
|
|
|
qreal xo, yo;
|
|
|
|
Stem* stem1 = sc && staffHasStems ? sc->stem() : 0;
|
|
Stem* stem2 = ec && staffHasStems ? ec->stem() : 0;
|
|
|
|
enum class SlurAnchor : char {
|
|
NONE, STEM
|
|
};
|
|
SlurAnchor sa1 = SlurAnchor::NONE;
|
|
SlurAnchor sa2 = SlurAnchor::NONE;
|
|
// if slur is 'embedded' between either stem or both (as it might happen with voices)
|
|
// link corresponding slur end to stem position
|
|
if ((scr->up() == ecr->up()) && !scr->beam() && !ecr->beam() && (_up == scr->up())) {
|
|
// both chords are facing same direction and slur is also in same direction
|
|
// and no beams
|
|
if (stem1)
|
|
sa1 = SlurAnchor::STEM;
|
|
if (stem2)
|
|
sa2 = SlurAnchor::STEM;
|
|
}
|
|
// also link start of slur to stem if start chord & slur are in same direction and there is a hook
|
|
if (scr->up() == _up && stem1 && sc->hook()) {
|
|
sa1 = SlurAnchor::STEM;
|
|
// if end chord is in same direction, link end of slur to stem too
|
|
if (ecr->up() == scr->up() && stem2)
|
|
sa2 = SlurAnchor::STEM;
|
|
}
|
|
|
|
qreal __up = _up ? -1.0 : 1.0;
|
|
qreal hw1 = note1 ? note1->tabHeadWidth(stt) : scr->width(); // if stt == 0, tabHeadWidth()
|
|
qreal hw2 = note2 ? note2->tabHeadWidth(stt) : ecr->width(); // defaults to headWidth()
|
|
QPointF pt;
|
|
switch (sa1) {
|
|
case SlurAnchor::STEM: //sc can't be null
|
|
{
|
|
// place slur starting point at stem end point
|
|
pt = sc->stemPos() - sc->pagePos() + sc->stem()->p2();
|
|
if (useTablature) // in tabs, stems are centred on note:
|
|
pt.rx() = hw1 * 0.5 + (note1 ? note1->bboxXShift() : 0.0); // skip half notehead to touch stem, anatoly-os: incorrect. half notehead width is not always the stem position
|
|
// clear the stem (x)
|
|
// allow slight overlap (y) as per Gould
|
|
// don't allow overlap with hook if not disabling the autoplace checks against start/end segments in SlurSegment::layoutSegment()
|
|
qreal yadj = -0.25; // sc->hook() ? 0.25 : -0.25;
|
|
yadj *= _spatium * __up;
|
|
pt += QPointF(0.35 * _spatium, yadj);
|
|
// account for articulations
|
|
pt.ry() = fixArticulations(pt.y(), sc, __up, true);
|
|
sp->p1 += pt;
|
|
}
|
|
break;
|
|
case SlurAnchor::NONE:
|
|
break;
|
|
}
|
|
switch (sa2) {
|
|
case SlurAnchor::STEM: //ec can't be null
|
|
{
|
|
pt = ec->stemPos() - ec->pagePos() + ec->stem()->p2();
|
|
if (useTablature)
|
|
pt.rx() = hw2 * 0.5;
|
|
// don't allow overlap with beam
|
|
qreal yadj = ec->beam() ? 0.75 : -0.25;
|
|
yadj *= _spatium * __up;
|
|
pt += QPointF(-0.35 * _spatium, yadj);
|
|
// account for articulations
|
|
pt.ry() = fixArticulations(pt.y(), ec, __up, true);
|
|
sp->p2 += pt;
|
|
}
|
|
break;
|
|
case SlurAnchor::NONE:
|
|
break;
|
|
}
|
|
|
|
//
|
|
// default position:
|
|
// horizontal: middle of notehead
|
|
// vertical: _spatium * .4 above/below notehead
|
|
//
|
|
//------p1
|
|
// Compute x0, y0 and stemPos
|
|
if (sa1 == SlurAnchor::NONE || sa2 == SlurAnchor::NONE) { // need stemPos if sa2 == SlurAnchor::NONE
|
|
bool stemPos = false; // p1 starts at chord stem side
|
|
|
|
// default positions
|
|
xo = hw1 * .5 + (note1 ? note1->bboxXShift() : 0.0);
|
|
if (note1)
|
|
yo = note1->pos().y();
|
|
else if (_up)
|
|
yo = scr->bbox().top();
|
|
else
|
|
yo = scr->bbox().top() + scr->height();
|
|
yo += _spatium * .9 * __up;
|
|
|
|
// adjustments for stem and/or beam
|
|
|
|
if (stem1) { //sc not null
|
|
Beam* beam1 = sc->beam();
|
|
if (beam1 && (beam1->elements().back() != sc) && (sc->up() == _up)) {
|
|
// start chord is beamed but not the last chord of beam group
|
|
// and slur direction is same as start chord (stem side)
|
|
|
|
// in these cases, layout start of slur to stem
|
|
|
|
qreal sh = stem1->height() + _spatium;
|
|
if (_up)
|
|
yo = sc->downNote()->pos().y() - sh;
|
|
else
|
|
yo = sc->upNote()->pos().y() + sh;
|
|
xo = stem1->pos().x();
|
|
|
|
// account for articulations
|
|
yo = fixArticulations(yo, sc, __up, true);
|
|
|
|
// force end of slur to layout to stem as well,
|
|
// if start and end chords have same stem direction
|
|
stemPos = true;
|
|
}
|
|
else {
|
|
// start chord is not beamed or is last chord of beam group
|
|
// or slur direction is opposite that of start chord
|
|
|
|
// at this point slur is in default position relative to note on slur side
|
|
// but we may need to make further adjustments
|
|
|
|
// if stem and slur are both up
|
|
// we need to clear stem horizontally
|
|
if (sc->up() && _up)
|
|
xo = hw1 + _spatium * .3;
|
|
|
|
//
|
|
// handle case: stem up - stem down
|
|
// stem down - stem up
|
|
//
|
|
if ((sc->up() != ecr->up()) && (sc->up() == _up)) {
|
|
// start and end chord have opposite direction
|
|
// and slur direction is same as start chord
|
|
// (so slur starts on stem side)
|
|
|
|
// float the start point along the stem to follow direction of movement
|
|
// see for example Gould p. 111
|
|
|
|
// get position of note on slur side for start & end chords
|
|
Note* n1 = sc->up() ? sc->upNote() : sc->downNote();
|
|
Note* n2 = 0;
|
|
if (ec)
|
|
n2 = ec->up() ? ec->upNote() : ec->downNote();
|
|
|
|
// differential in note positions
|
|
qreal yd = (n2 ? n2->pos().y() : ecr->pos().y()) - n1->pos().y();
|
|
yd *= .5;
|
|
|
|
// float along stem according to differential
|
|
qreal sh = stem1->height();
|
|
if (_up && yd < 0.0)
|
|
yo = qMax(yo + yd, sc->downNote()->pos().y() - sh - _spatium);
|
|
else if (!_up && yd > 0.0)
|
|
yo = qMin(yo + yd, sc->upNote()->pos().y() + sh + _spatium);
|
|
|
|
// account for articulations
|
|
yo = fixArticulations(yo, sc, __up, true);
|
|
|
|
// we may wish to force end to align to stem as well,
|
|
// if it is in same direction
|
|
// (but it won't be, so this assignment should have no effect)
|
|
stemPos = true;
|
|
}
|
|
else {
|
|
// avoid articulations
|
|
yo = fixArticulations(yo, sc, __up, sc->up() == _up);
|
|
}
|
|
}
|
|
}
|
|
else if (sc) {
|
|
// avoid articulations
|
|
yo = fixArticulations(yo, sc, __up, sc->up() == _up);
|
|
}
|
|
|
|
if (sa1 == SlurAnchor::NONE)
|
|
sp->p1 += QPointF(xo, yo);
|
|
|
|
//------p2
|
|
if (sa2 == SlurAnchor::NONE) {
|
|
|
|
// default positions
|
|
xo = hw2 * .5 + (note2 ? note2->bboxXShift() : 0.0);
|
|
if (note2)
|
|
yo = note2->pos().y();
|
|
else if (_up)
|
|
yo = endCR()->bbox().top();
|
|
else
|
|
yo = endCR()->bbox().top() + endCR()->height();
|
|
yo += _spatium * .9 * __up;
|
|
|
|
// adjustments for stem and/or beam
|
|
|
|
if (stem2) { //ec can't be null
|
|
Beam* beam2 = ec->beam();
|
|
if ((stemPos && (scr->up() == ec->up()))
|
|
|| (beam2
|
|
&& (!beam2->elements().empty())
|
|
&& (beam2->elements().front() != ec)
|
|
&& (ec->up() == _up)
|
|
&& sc && (sc->noteType() == NoteType::NORMAL)
|
|
)
|
|
) {
|
|
|
|
// slur start was laid out to stem and start and end have same direction
|
|
// OR
|
|
// end chord is beamed but not the first chord of beam group
|
|
// and slur direction is same as end chord (stem side)
|
|
// and start chordrest is not a grace chord
|
|
|
|
// in these cases, layout end of slur to stem
|
|
|
|
qreal sh = stem2->height() + _spatium;
|
|
if (_up)
|
|
yo = ec->downNote()->pos().y() - sh;
|
|
else
|
|
yo = ec->upNote()->pos().y() + sh;
|
|
xo = stem2->pos().x();
|
|
|
|
// account for articulations
|
|
yo = fixArticulations(yo, ec, __up, true);
|
|
}
|
|
else
|
|
{
|
|
// slur was not aligned to stem or start and end have different direction
|
|
// AND
|
|
// end chord is not beamed or is first chord of beam group
|
|
// or slur direction is opposite that of end chord
|
|
|
|
// if stem and slur are both down,
|
|
// we need to clear stem horizontally
|
|
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)) {
|
|
// start and end chord have opposite direction
|
|
// and slur direction is same as end chord
|
|
// (so slur end on stem side)
|
|
|
|
// float the end point along the stem to follow direction of movement
|
|
// see for example Gould p. 111
|
|
|
|
Note* n1 = 0;
|
|
if (sc)
|
|
n1 = sc->up() ? sc->upNote() : sc->downNote();
|
|
Note* n2 = ec->up() ? ec->upNote() : ec->downNote();
|
|
|
|
qreal yd = n2->pos().y() - (n1 ? n1->pos().y() : startCR()->pos().y());
|
|
yd *= .5;
|
|
|
|
qreal mh = stem2->height();
|
|
if (_up && yd > 0.0)
|
|
yo = qMax(yo - yd, ec->downNote()->pos().y() - mh - _spatium);
|
|
else if (!_up && yd < 0.0)
|
|
yo = qMin(yo - yd, ec->upNote()->pos().y() + mh + _spatium);
|
|
|
|
// account for articulations
|
|
yo = fixArticulations(yo, ec, __up, true);
|
|
}
|
|
else {
|
|
// avoid articulations
|
|
yo = fixArticulations(yo, ec, __up, ec->up() == _up);
|
|
}
|
|
|
|
}
|
|
}
|
|
else if (ec) {
|
|
// avoid articulations
|
|
yo = fixArticulations(yo, ec, __up, ec->up() == _up);
|
|
}
|
|
|
|
sp->p2 += QPointF(xo, yo);
|
|
}
|
|
}
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// Slur
|
|
//---------------------------------------------------------
|
|
|
|
Slur::Slur(Score* s)
|
|
: SlurTie(s)
|
|
{
|
|
setAnchor(Anchor::CHORD);
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// write
|
|
//---------------------------------------------------------
|
|
|
|
void Slur::write(XmlWriter& xml) const
|
|
{
|
|
if (broken()) {
|
|
qDebug("broken slur not written");
|
|
return;
|
|
}
|
|
if (!xml.canWrite(this))
|
|
return;
|
|
xml.stag(this);
|
|
SlurTie::writeProperties(xml);
|
|
xml.etag();
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// chordsHaveTie
|
|
//---------------------------------------------------------
|
|
|
|
static bool chordsHaveTie(Chord* c1, Chord* c2)
|
|
{
|
|
size_t n = c1->notes().size();
|
|
for (size_t i1 = 0; i1 < n; ++i1) {
|
|
Note* n1 = c1->notes().at(i1);
|
|
size_t n2 = c2->notes().size();
|
|
for (size_t i2 = 0; i2 < n2; ++i2) {
|
|
Note* n3 = c2->notes().at(i2);
|
|
if (n1->tieFor() && n1->tieFor() == n3->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)) {
|
|
Element* e = seg->element(c1->track());
|
|
if (!e || !e->isChord())
|
|
continue;
|
|
Chord* c = toChord(e);
|
|
if (c->up() != up)
|
|
return true;
|
|
if (seg == c2->segment())
|
|
break;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// layoutSystem
|
|
// layout slurSegment for system
|
|
//---------------------------------------------------------
|
|
|
|
SpannerSegment* Slur::layoutSystem(System* system)
|
|
{
|
|
int stick = system->firstMeasure()->tick();
|
|
int etick = system->lastMeasure()->endTick();
|
|
|
|
SlurSegment* slurSegment = toSlurSegment(getNextLayoutSystemSegment(system, [this]() { return new SlurSegment(score()); }));
|
|
|
|
SpannerSegmentType sst;
|
|
if (tick() >= stick) {
|
|
//
|
|
// this is the first call to layoutSystem,
|
|
// processing the first line segment
|
|
//
|
|
if (track2() == -1)
|
|
setTrack2(track());
|
|
if (startCR() == 0 || startCR()->measure() == 0) {
|
|
qDebug("Slur::layout(): track %d-%d %p - %p tick %d-%d null start anchor",
|
|
track(), track2(), startCR(), endCR(), tick(), tick2());
|
|
return slurSegment;
|
|
}
|
|
if (endCR() == 0) { // sanity check
|
|
setEndElement(startCR());
|
|
setTick2(tick());
|
|
}
|
|
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;
|
|
}
|
|
Chord* c1 = startCR()->isChord() ? toChord(startCR()) : 0;
|
|
Chord* c2 = endCR()->isChord() ? toChord(endCR()) : 0;
|
|
|
|
_up = !(startCR()->up());
|
|
|
|
Measure* m1 = startCR()->measure();
|
|
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->isGrace()) {
|
|
// slurs go above if start and end note have different stem directions,
|
|
// but grace notes are exceptions
|
|
_up = true;
|
|
}
|
|
else if (m1->hasVoices(startCR()->staffIdx()) && c1 && !c1->isGrace()) {
|
|
// 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;
|
|
}
|
|
sst = tick2() < etick ? SpannerSegmentType::SINGLE : SpannerSegmentType::BEGIN;
|
|
}
|
|
else if (tick() < stick && tick2() >= etick)
|
|
sst = SpannerSegmentType::MIDDLE;
|
|
else
|
|
sst = SpannerSegmentType::END;
|
|
slurSegment->setSpannerSegmentType(sst);
|
|
|
|
SlurPos sPos;
|
|
slurPos(&sPos);
|
|
|
|
switch (sst) {
|
|
case SpannerSegmentType::SINGLE:
|
|
slurSegment->layoutSegment(sPos.p1, sPos.p2);
|
|
break;
|
|
case SpannerSegmentType::BEGIN:
|
|
slurSegment->layoutSegment(sPos.p1, QPointF(system->bbox().width(), sPos.p1.y()));
|
|
break;
|
|
case SpannerSegmentType::MIDDLE: {
|
|
qreal x1 = firstNoteRestSegmentX(system);
|
|
qreal x2 = system->bbox().width();
|
|
qreal y = staffIdx() > system->staves()->size() ? system->y() : system->staff(staffIdx())->y();
|
|
slurSegment->layoutSegment(QPointF(x1, y), QPointF(x2, y));
|
|
}
|
|
break;
|
|
case SpannerSegmentType::END:
|
|
slurSegment->layoutSegment(QPointF(firstNoteRestSegmentX(system), sPos.p2.y()), sPos.p2);
|
|
break;
|
|
}
|
|
|
|
return slurSegment;
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// layout
|
|
//---------------------------------------------------------
|
|
|
|
void Slur::layout()
|
|
{
|
|
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().empty()) {
|
|
s = new SlurSegment(score());
|
|
s->setTrack(track());
|
|
add(s);
|
|
}
|
|
else {
|
|
s = frontSegment();
|
|
}
|
|
s->setSpannerSegmentType(SpannerSegmentType::SINGLE);
|
|
s->layoutSegment(QPointF(0, 0), QPointF(_spatium * 6, 0));
|
|
setbbox(frontSegment()->bbox());
|
|
return;
|
|
}
|
|
|
|
if (startCR() == 0 || startCR()->measure() == 0) {
|
|
qDebug("Slur::layout(): track %d-%d %p - %p tick %d-%d null start anchor",
|
|
track(), track2(), startCR(), endCR(), tick(), tick2());
|
|
return;
|
|
}
|
|
if (endCR() == 0) { // sanity check
|
|
setEndElement(startCR());
|
|
setTick2(tick());
|
|
}
|
|
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()->isChord() ? toChord(startCR()) : 0;
|
|
Chord* c2 = endCR()->isChord() ? toChord(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->hasVoices(startCR()->staffIdx()) && 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);
|
|
|
|
const QList<System*>& sl = score()->systems();
|
|
ciSystem 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 (ciSystem iis = is; iis != sl.end(); ++iis) {
|
|
if ((*iis)->vbox())
|
|
continue;
|
|
if (*iis == sPos.system2)
|
|
break;
|
|
++nsegs;
|
|
}
|
|
|
|
fixupSegments(nsegs);
|
|
|
|
for (int i = 0; is != sl.end(); ++i, ++is) {
|
|
System* system = *is;
|
|
if (system->vbox()) {
|
|
--i;
|
|
continue;
|
|
}
|
|
SlurSegment* segment = segmentAt(i);
|
|
segment->setSystem(system);
|
|
|
|
// case 1: one segment
|
|
if (sPos.system1 == sPos.system2) {
|
|
segment->setSpannerSegmentType(SpannerSegmentType::SINGLE);
|
|
segment->layoutSegment(sPos.p1, sPos.p2);
|
|
}
|
|
// case 2: start segment
|
|
else if (i == 0) {
|
|
segment->setSpannerSegmentType(SpannerSegmentType::BEGIN);
|
|
qreal x = system->bbox().width();
|
|
segment->layoutSegment(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);
|
|
qreal x2 = system->bbox().width();
|
|
qreal y = staffIdx() > system->staves()->size() ? system->y() : system->staff(staffIdx())->y();
|
|
segment->layoutSegment(QPointF(x1, y), QPointF(x2, y));
|
|
}
|
|
// case 4: end segment
|
|
else {
|
|
segment->setSpannerSegmentType(SpannerSegmentType::END);
|
|
qreal x = firstNoteRestSegmentX(system);
|
|
segment->layoutSegment(QPointF(x, sPos.p2.y()), sPos.p2);
|
|
}
|
|
if (system == sPos.system2)
|
|
break;
|
|
}
|
|
setbbox(spannerSegments().empty() ? QRectF() : frontSegment()->bbox());
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// setTrack
|
|
//---------------------------------------------------------
|
|
|
|
void Slur::setTrack(int n)
|
|
{
|
|
Element::setTrack(n);
|
|
for (SpannerSegment* ss : spannerSegments())
|
|
ss->setTrack(n);
|
|
}
|
|
}
|
|
|