422 lines
13 KiB
C++
422 lines
13 KiB
C++
//=============================================================================
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// MuseScore
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// Music Composition & Notation
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//
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// Copyright (C) 2002-2013 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 "note.h"
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#include "chord.h"
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#include "xml.h"
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#include "slur.h"
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#include "measure.h"
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#include "utils.h"
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#include "score.h"
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#include "system.h"
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#include "segment.h"
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#include "staff.h"
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#include "navigate.h"
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#include "articulation.h"
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#include "undo.h"
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#include "stem.h"
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#include "beam.h"
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#include "mscore.h"
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#include "page.h"
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#include "tie.h"
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namespace Ms {
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Note* Tie::editStartNote;
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Note* Tie::editEndNote;
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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 Tie::computeBezier(SlurSegment* ss, 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 start of slur
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// pp2 end of slur
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// pp3 bezier 1
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// pp4 bezier 2
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// pp5 drag
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// pp6 shoulder
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//
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QPointF pp1 = ss->ups[GRIP_START].p + ss->ups[GRIP_START].off * _spatium;
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QPointF pp2 = ss->ups[GRIP_END].p + ss->ups[GRIP_END].off * _spatium;
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QPointF p2 = pp2 - pp1; // normalize to zero
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if (p2.x() == 0.0) {
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qDebug("zero tie");
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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 = 0.38;
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qreal d = p2.x() / _spatium;
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shoulderH = d * 0.4 * smallH;
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if (shoulderH > 1.3) // maximum tie shoulder height
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shoulderH = 1.3;
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shoulderH *= _spatium;
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shoulderW = .6;
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shoulderH -= p6o.y();
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if (!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()->styleS(ST_SlurMidWidth).val() - score()->styleS(ST_SlurEndWidth).val()) * _spatium;
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QPointF th(0.0, w); // thickness of slur
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QPointF p3o = p6o + t.map(ss->ups[GRIP_BEZIER1].off * _spatium);
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QPointF p4o = p6o + t.map(ss->ups[GRIP_BEZIER2].off * _spatium);
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if(!p6o.isNull()) {
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QPointF p6i = t.inverted().map(p6o) / _spatium;
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ss->ups[GRIP_BEZIER1].off += p6i ;
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ss->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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ss->path = QPainterPath();
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ss->path.moveTo(QPointF());
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ss->path.cubicTo(p3 + p3o - th, p4 + p4o - th, p2);
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if (lineType() == 0)
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ss->path.cubicTo(p4 +p4o + th, p3 + p3o + th, QPointF());
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th = QPointF(0.0, 3.0 * w);
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ss->shapePath = QPainterPath();
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ss->shapePath.moveTo(QPointF());
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ss->shapePath.cubicTo(p3 + p3o - th, p4 + p4o - th, p2);
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ss->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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ss->path = t.map(ss->path);
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ss->shapePath = t.map(ss->shapePath);
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ss->ups[GRIP_BEZIER1].p = t.map(p3);
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ss->ups[GRIP_BEZIER2].p = t.map(p4);
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ss->ups[GRIP_END].p = t.map(p2) - ss->ups[GRIP_END].off * _spatium;
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ss->ups[GRIP_DRAG].p = t.map(p5);
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ss->ups[GRIP_SHOULDER].p = t.map(p6);
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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 Tie::slurPos(SlurPos* sp)
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{
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qreal hw = startNote()->headWidth();
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qreal __up = _up ? -1.0 : 1.0;
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qreal _spatium = spatium();
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Chord* sc = startNote()->chord();
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Q_ASSERT(sc);
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sp->system1 = sc->measure()->system();
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if (!sp->system1) {
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Measure* m = sc->measure();
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printf("no system: measure is %d has %d count %d\n", m->isMMRest(), m->hasMMRest(), m->mmRestCount());
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}
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Q_ASSERT(sp->system1);
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qreal xo;
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qreal yo;
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//------p1
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if ((sc->notes().size() > 1) || (sc->stem() && (sc->up() == _up))) {
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xo = startNote()->x() + hw * 1.12;
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yo = startNote()->pos().y() + hw * .3 * __up;
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}
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else {
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xo = startNote()->x() + hw * 0.85;
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yo = startNote()->pos().y() + _spatium * .75 * __up;
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}
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sp->p1 = sc->pagePos() - sp->system1->pagePos() + QPointF(xo, yo);
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//------p2
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if (endNote() == 0) {
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sp->p2 = sp->p1 + QPointF(_spatium * 3, 0.0);
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sp->system2 = sp->system1;
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return;
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}
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Chord* ec = endNote()->chord();
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sp->system2 = ec->measure()->system();
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if ((ec->notes().size() > 1) || (ec->stem() && !ec->up() && !_up))
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xo = endNote()->x() - hw * 0.12;
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else
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xo = endNote()->x() + hw * 0.15;
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sp->p2 = ec->pagePos() - sp->system2->pagePos() + QPointF(xo, yo);
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}
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//---------------------------------------------------------
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// Tie
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//---------------------------------------------------------
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Tie::Tie(Score* s)
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: SlurTie(s)
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{
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setAnchor(ANCHOR_NOTE);
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}
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//---------------------------------------------------------
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// setStartNote
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//---------------------------------------------------------
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void Tie::setStartNote(Note* note)
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{
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setStartElement(note);
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setParent(note);
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}
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//---------------------------------------------------------
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// write
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//---------------------------------------------------------
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void Tie::write(Xml& xml) const
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{
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xml.stag(QString("Tie id=\"%1\"").arg(id()));
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SlurTie::writeProperties(xml);
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xml.etag();
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}
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//---------------------------------------------------------
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// read
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//---------------------------------------------------------
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void Tie::read(XmlReader& e)
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{
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setId(e.intAttribute("id"));
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while (e.readNextStartElement()) {
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if (SlurTie::readProperties(e) || Element::readProperties(e))
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;
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else
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e.unknown();
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}
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}
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//---------------------------------------------------------
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// layout
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//---------------------------------------------------------
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void Tie::layout()
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{
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qreal _spatium = spatium();
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//
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// show short bow
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//
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if (startNote() == 0 || endNote() == 0) {
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if (startNote() == 0) {
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qDebug("Tie::layout(): no start note");
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return;
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}
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Chord* c1 = startNote()->chord();
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if (_slurDirection == MScore::AUTO) {
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if (c1->measure()->mstaff(c1->staffIdx())->hasVoices) {
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// in polyphonic passage, ties go on the stem side
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_up = c1->up();
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}
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else
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_up = !c1->up();
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}
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else
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_up = _slurDirection == MScore::UP ? true : false;
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fixupSegments(1);
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SlurSegment* segment = segmentAt(0);
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segment->setSpannerSegmentType(SEGMENT_SINGLE);
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segment->setSystem(startNote()->chord()->segment()->measure()->system());
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SlurPos sPos;
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slurPos(&sPos);
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segment->layout(sPos.p1, sPos.p2);
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return;
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}
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Chord* c1 = startNote()->chord();
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Chord* c2 = endNote()->chord();
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Measure* m1 = c1->measure();
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Measure* m2 = c2->measure();
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if (_slurDirection == MScore::AUTO) {
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QList<Note*> notes = c1->notes();
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int n = notes.size();
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if (m1->mstaff(c1->staffIdx())->hasVoices || m2->mstaff(c2->staffIdx())->hasVoices) {
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// in polyphonic passage, ties go on the stem side
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_up = c1->up();
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}
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else if (n == 1) {
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//
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// single note
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//
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if (c1->up() != c2->up()) {
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// if stem direction is mixed, always up
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_up = true;
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}
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else
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_up = !c1->up();
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}
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else {
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//
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// chords
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//
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QList<int> ties;
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int idx = 0;
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for (int i = 0; i < n; ++i) {
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if (notes[i]->tieFor()) {
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ties.append(notes[i]->line());
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if (notes[i] == startNote())
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idx = ties.size() - 1;
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}
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}
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if (idx == 0)
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_up = false;
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else if (idx == ties.size() - 1)
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_up = true;
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else {
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if (ties[idx] <= 4)
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_up = ((ties[idx-1] - ties[idx]) <= 1) || ((ties[idx] - ties[idx+1]) > 1);
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else
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_up = ((ties[idx-1] - ties[idx]) <= 1) && ((ties[idx] - ties[idx+1]) > 1);
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}
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}
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}
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else
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_up = _slurDirection == MScore::UP ? true : false;
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qreal w = startNote()->headWidth();
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qreal xo1 = w * 1.12;
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qreal h = w * 0.3;
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qreal yo = _up ? -h : h;
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QPointF off1(xo1, yo);
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QPointF off2(0.0, yo);
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QPointF ppos(pagePos());
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// TODO: cleanup
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SlurPos sPos;
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slurPos(&sPos);
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// p1, p2, s1, s2
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QList<System*>* systems = score()->systems();
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setPos(0, 0);
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//---------------------------------------------------------
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// count number of segments, if no change, all
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// user offsets (drags) are retained
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//---------------------------------------------------------
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int sysIdx1 = systems->indexOf(sPos.system1);
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if (sysIdx1 == -1) {
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qDebug("system not found");
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foreach(System* s, *systems)
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qDebug(" search %p in %p", sPos.system1, s);
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return;
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}
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int sysIdx2 = systems->indexOf(sPos.system2);
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if (sysIdx2 < 0)
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sysIdx2 = sysIdx1;
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unsigned nsegs = sysIdx2 - sysIdx1 + 1;
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fixupSegments(nsegs);
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int i = 0;
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for (uint ii = 0; ii < nsegs; ++ii) {
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System* system = (*systems)[sysIdx1++];
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if (system->isVbox())
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continue;
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SlurSegment* segment = segmentAt(i);
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segment->setSystem(system);
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// case 1: one segment
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if (sPos.system1 == sPos.system2) {
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segment->layout(sPos.p1, sPos.p2);
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segment->setSpannerSegmentType(SEGMENT_SINGLE);
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}
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// case 2: start segment
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else if (i == 0) {
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qreal x = system->bbox().width();
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segment->layout(sPos.p1, QPointF(x, sPos.p1.y()));
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segment->setSpannerSegmentType(SEGMENT_BEGIN);
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}
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// case 4: end segment
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else {
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qreal x = firstNoteRestSegmentX(system) - 2 * _spatium;
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segment->layout(QPointF(x, sPos.p2.y()), sPos.p2);
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segment->setSpannerSegmentType(SEGMENT_END);
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}
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++i;
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}
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}
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//---------------------------------------------------------
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// startEdit
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//---------------------------------------------------------
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void Tie::startEdit(MuseScoreView* v, const QPointF& p)
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{
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editStartNote = startNote();
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editEndNote = endNote();
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SlurTie::startEdit(v, p);
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}
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//---------------------------------------------------------
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// endEdit
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//---------------------------------------------------------
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void Tie::endEdit()
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{
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if (editStartNote != startNote() || editEndNote != endNote()) {
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score()->undo()->push1(new ChangeSpannerElements(this, editStartNote, editEndNote));
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}
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SlurTie::endEdit();
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score()->setLayoutAll(true);
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}
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}
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