609 lines
24 KiB
C++
609 lines
24 KiB
C++
//=============================================================================
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// MuseScore
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// Music Composition & Notation
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//
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// Copyright (C) 2008-2011 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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/* TO DO:
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- XML export
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NICE-TO-HAVE TODO:
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- draggable handles of glissando segments
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- re-attachable glissando extrema (with [Shift]+arrows, use SlurSegment::edit()
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and SlurSegment::changeAnchor() in slur.cpp as models)
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*/
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#include "arpeggio.h"
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#include "glissando.h"
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#include "chord.h"
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#include "ledgerline.h"
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#include "note.h"
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#include "notedot.h"
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#include "score.h"
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#include "segment.h"
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#include "staff.h"
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#include "system.h"
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#include "style.h"
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#include "sym.h"
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#include "xml.h"
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namespace Ms {
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static const qreal GLISS_DEFAULT_LINE_TICKNESS = 0.15;
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static const qreal GLISS_PALETTE_WIDTH = 4.0;
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static const qreal GLISS_PALETTE_HEIGHT = 4.0;
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//---------------------------------------------------------
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// GlisandoSegment
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//---------------------------------------------------------
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//---------------------------------------------------------
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// layout
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//---------------------------------------------------------
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void GlissandoSegment::layout()
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{
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QRectF r = QRectF(0.0, 0.0, pos2().x(), pos2().y()).normalized();
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qreal lw = spatium() * glissando()->lineWidth().val() * .5;
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setbbox(r.adjusted(-lw, -lw, lw, lw));
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adjustReadPos();
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}
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//---------------------------------------------------------
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// draw
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//---------------------------------------------------------
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void GlissandoSegment::draw(QPainter* painter) const
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{
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painter->save();
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qreal _spatium = spatium();
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QPen pen(glissando()->curColor());
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pen.setWidthF(glissando()->lineWidth().val() * spatium());
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pen.setCapStyle(Qt::RoundCap);
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painter->setPen(pen);
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// painter->drawLine(QPointF(), pos2()); // DEBUG
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// rotate painter so that the line become horizontal
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qreal w = pos2().x();
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qreal h = pos2().y();
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qreal l = sqrt(w * w + h * h);
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qreal wi = asin(-h / l) * 180.0 / M_PI;
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painter->rotate(-wi);
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if (glissando()->glissandoType() == Glissando::Type::STRAIGHT) {
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painter->drawLine(QLineF(0.0, 0.0, l, 0.0));
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}
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else if (glissando()->glissandoType() == Glissando::Type::WAVY) {
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QRectF b = symBbox(SymId::wiggleTrill);
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// qreal h = symHeight(SymId::wiggleTrill); // DEBUG
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qreal w = symWidth(SymId::wiggleTrill);
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int n = (int)(l / w); // always round down (truncate) to avoid overlap
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qreal x = (l - n*w) * 0.5; // centre line in available space
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drawSymbol(SymId::wiggleTrill, painter, QPointF(x, b.height()*.70), n);
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}
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if (glissando()->showText()) {
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const TextStyle& st = score()->textStyle(TextStyleType::GLISSANDO);
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QFont f = st.fontPx(_spatium);
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QRectF r = QFontMetricsF(f).boundingRect(glissando()->text());
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// if text longer than available space, skip it
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if (r.width() < l) {
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qreal yOffset = r.height() + r.y(); // find text descender height
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// raise text slightly above line and slightly more with WAVY than with STRAIGHT
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yOffset += _spatium * (glissando()->glissandoType() == Glissando::Type::WAVY ? 0.5 : 0.1);
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painter->setFont(f);
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qreal x = (l - r.width()) * 0.5;
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painter->drawText(QPointF(x, -yOffset), glissando()->text());
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}
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}
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painter->restore();
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}
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//---------------------------------------------------------
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// Glissando
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//---------------------------------------------------------
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Glissando::Glissando(Score* s)
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: SLine(s)
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{
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setFlags(ElementFlag::MOVABLE | ElementFlag::SELECTABLE);
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_glissandoType = Type::STRAIGHT;
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_text = "gliss.";
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_showText = true;
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setDiagonal(true);
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setLineWidth(Spatium(GLISS_DEFAULT_LINE_TICKNESS));
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setAnchor(Spanner::Anchor::NOTE);
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}
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Glissando::Glissando(const Glissando& g)
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: SLine(g)
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{
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_glissandoType = g._glissandoType;
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_text = g._text;
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_showText = g._showText;
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}
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//---------------------------------------------------------
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// createLineSegment
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//---------------------------------------------------------
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LineSegment* Glissando::createLineSegment()
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{
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GlissandoSegment* seg = new GlissandoSegment(score());
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seg->setFlag(ElementFlag::ON_STAFF, false);
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seg->setTrack(track());
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seg->setColor(color());
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return seg;
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}
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//---------------------------------------------------------
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// scanElements
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//---------------------------------------------------------
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void Glissando::scanElements(void* data, void (*func)(void*, Element*), bool all)
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{
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func(data, this);
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SLine::scanElements(data, func, all);
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}
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//---------------------------------------------------------
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// layout
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//---------------------------------------------------------
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void Glissando::layout()
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{
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qreal _spatium = spatium();
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if (score() == gscore // for use in palettes
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|| startElement() == nullptr || endElement() == nullptr) { // or while dragging
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if (spannerSegments().isEmpty())
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add(createLineSegment());
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LineSegment* s = frontSegment();
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s->setPos(QPointF());
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s->setPos2(QPointF(_spatium * GLISS_PALETTE_WIDTH, -_spatium * GLISS_PALETTE_HEIGHT));
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s->layout();
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return;
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}
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SLine::layout();
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setPos(0.0, 0.0);
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adjustReadPos();
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Note* anchor1 = static_cast<Note*>(startElement());
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Note* anchor2 = static_cast<Note*>(endElement());
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Chord* cr1 = anchor1->chord();
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Chord* cr2 = anchor2->chord();
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GlissandoSegment* segm1 = static_cast<GlissandoSegment*>(frontSegment());
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GlissandoSegment* segm2 = static_cast<GlissandoSegment*>(backSegment());
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// Note: line segments are defined by
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// initial point: ipos() (relative to system origin)
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// ending point: pos2() (relative to initial point)
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// LINE ENDING POINTS TO NOTE HEAD CENTRES
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// assume gliss. line goes from centre of initial note centre to centre of ending note:
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// move first segment origin and last segment ending point from note head origin to note head centre
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QPointF offs1 = QPointF(anchor1->headWidth() * 0.5, 0.0);
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QPointF offs2 = QPointF(anchor2->headWidth() * 0.5, 0.0);
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// AVOID HORIZONTAL LINES
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int upDown = (0 < (anchor2->pitch() - anchor1->pitch())) - ((anchor2->pitch() - anchor1->pitch()) < 0);
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// on TAB's, glissando are by necessity on the same string, this gives an horizontal glissando line;
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// make bottom end point lower and top ending point higher
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if (cr1->staff()->isTabStaff()) {
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qreal yOff = cr1->staff()->lineDistance() * 0.3 * _spatium;
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offs1.ry() += yOff * upDown;
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offs2.ry() -= yOff * upDown;
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}
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// if not TAB, angle glissando between notes on the same line
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else {
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if (anchor1->line() == anchor2->line()) {
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offs1.ry() += _spatium * 0.25 * upDown;
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offs2.ry() -= _spatium * 0.25 * upDown;
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}
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}
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// move initial point of first segment and adjust its length accordingly
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segm1->setPos (segm1->ipos() + offs1);
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segm1->setPos2(segm1->ipos2() - offs1);
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// adjust ending point of last segment
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segm2->setPos2(segm2->ipos2() + offs2);
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// FINAL SYSTEM-INITIAL NOTE
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// if the last gliss. segment attaches to a system-initial note, some extra width has to be added
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if (cr2->segment()->measure() == cr2->segment()->system()->firstMeasure() && cr2->rtick() == 0)
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{
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segm2->rxpos() -= GLISS_STARTOFSYSTEM_WIDTH * _spatium;
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segm2->rxpos2()+= GLISS_STARTOFSYSTEM_WIDTH * _spatium;
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}
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// INTERPOLATION OF INTERMEDIATE POINTS
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// This probably belongs to SLine class itself; currently it does not seem
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// to be needed for anything else than Glissando, though
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// get total x-width and total y-height of all segments
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qreal xTot = 0.0;
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for (SpannerSegment* segm : spannerSegments())
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xTot += segm->ipos2().x();
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qreal y0 = segm1->ipos().y();
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qreal yTot = segm2->ipos().y() + segm2->ipos2().y() - y0;
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qreal ratio = yTot / xTot;
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// interpolate y-coord of intermediate points across total width and height
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qreal xCurr = 0.0;
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qreal yCurr;
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for (int i = 0; i < spannerSegments().count()-1; i++)
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{
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SpannerSegment* segm = segmentAt(i);
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xCurr += segm->ipos2().x();
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yCurr = y0 + ratio * xCurr;
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segm->rypos2() = yCurr - segm->ipos().y(); // position segm. end point at yCurr
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// next segment shall start where this segment stopped
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segm = segmentAt(i+1);
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segm->rypos2() += segm->ipos().y() - yCurr; // adjust next segm. vertical length
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segm->rypos() = yCurr; // position next segm. start point at yCurr
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}
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// STAY CLEAR OF NOTE APPENDAGES
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// initial note dots / ledger line / note head
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offs1 *= -1.0; // discount changes already applied
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int dots = cr1->dots();
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LedgerLine * ledLin = cr1->ledgerLines();
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// if dots, start at right of last dot
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// if no dots, from right of ledger line, if any; from right of note head, if no ledger line
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offs1.rx() += (dots && anchor1->dot(dots-1) ? anchor1->dot(dots-1)->pos().x() + anchor1->dot(dots-1)->width()
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: (ledLin ? ledLin->pos().x() + ledLin->width() : anchor1->headWidth()) );
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// final note arpeggio / accidental / ledger line / accidental / arpeggio (i.e. from outermost to innermost)
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offs2 *= -1.0; // discount changes already applied
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if (Arpeggio* a = cr2->arpeggio())
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offs2.rx() += a->pos().x() + a->userOff().x();
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else if (Accidental* a = anchor2->accidental())
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offs2.rx() += a->pos().x() + a->userOff().x();
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else if ( (ledLin = cr2->ledgerLines()) != nullptr)
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offs2.rx() += ledLin->pos().x();
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// add another a quarter spatium of 'air'
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offs1.rx() += _spatium * 0.25;
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offs2.rx() -= _spatium * 0.25;
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// apply offsets: shorten first segment by x1 (and proportionally y) and adjust its length accordingly
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offs1.ry() = segm1->ipos2().y() * offs1.x() / segm1->ipos2().x();
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segm1->setPos(segm1->ipos() + offs1);
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segm1->setPos2(segm1->ipos2() - offs1);
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// adjust last segment length by x2 (and proportionally y)
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offs2.ry() = segm2->ipos2().y() * offs2.x() / segm2->ipos2().x();
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segm2->setPos2(segm2->ipos2() + offs2);
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for (SpannerSegment* segm : spannerSegments())
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static_cast<GlissandoSegment*>(segm)->layout();
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// compute glissando bbox as the bbox of the last segment, relative to the end anchor note
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QPointF anchor2PagePos = anchor2->pagePos();
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QPointF system2PagePos = cr2->segment()->system()->pagePos();
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QPointF anchor2SystPos = anchor2PagePos - system2PagePos;
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QRectF r = QRectF(anchor2SystPos - segm2->pos(), anchor2SystPos - segm2->pos() - segm2->pos2()).normalized();
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qreal lw = _spatium * lineWidth().val() * .5;
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setbbox(r.adjusted(-lw, -lw, lw, lw));
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}
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//---------------------------------------------------------
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// write
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//---------------------------------------------------------
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void Glissando::write(Xml& xml) const
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{
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if (!xml.canWrite(this))
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return;
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xml.stag(QString("%1 id=\"%2\"").arg(name()).arg(xml.spannerId(this)));
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if (_showText && !_text.isEmpty())
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xml.tag("text", _text);
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xml.tag("subtype", int(_glissandoType));
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SLine::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 Glissando::read(XmlReader& e)
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{
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qDeleteAll(spannerSegments());
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spannerSegments().clear();
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e.addSpanner(e.intAttribute("id", -1), this);
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_showText = false;
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while (e.readNextStartElement()) {
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const QStringRef& tag = e.name();
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if (tag == "text") {
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_showText = true;
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_text = e.readElementText();
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}
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else if (tag == "subtype")
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_glissandoType = Type(e.readInt());
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else if (!SLine::readProperties(e))
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e.unknown();
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}
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}
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//---------------------------------------------------------
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// draw
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//---------------------------------------------------------
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/*
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void Glissando::draw(QPainter* painter) const
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{
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painter->save();
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qreal _spatium = spatium();
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QPen pen(curColor());
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pen.setWidthF(_spatium * .15);
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pen.setCapStyle(Qt::RoundCap);
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painter->setPen(pen);
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qreal w = line.dx();
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qreal h = line.dy();
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qreal l = sqrt(w * w + h * h);
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painter->translate(line.p1());
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qreal wi = asin(-h / l) * 180.0 / M_PI;
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painter->rotate(-wi);
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if (glissandoType() == Type::STRAIGHT) {
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painter->drawLine(QLineF(0.0, 0.0, l, 0.0));
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}
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else if (glissandoType() == Type::WAVY) {
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QRectF b = symBbox(SymId::wiggleTrill);
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qreal w = symWidth(SymId::wiggleTrill);
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int n = (int)(l / w); // always round down (truncate) to avoid overlap
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qreal x = (l - n*w) * 0.5; // centre line in available space
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drawSymbol(SymId::wiggleTrill, painter, QPointF(x, b.height()*.5), n);
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}
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if (_showText) {
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const TextStyle& st = score()->textStyle(TextStyleType::GLISSANDO);
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QFont f = st.fontPx(_spatium);
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QRectF r = QFontMetricsF(f).boundingRect(_text);
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// if text longer than available space, skip it
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if (r.width() < l) {
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qreal yOffset = r.height() + r.y(); // find text descender height
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// raise text slightly above line and slightly more with WAVY than with STRAIGHT
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yOffset += _spatium * (glissandoType() == Type::WAVY ? 0.75 : 0.05);
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painter->setFont(f);
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qreal x = (l - r.width()) * 0.5;
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painter->drawText(QPointF(x, -yOffset), _text);
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}
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}
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painter->restore();
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}
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*/
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//---------------------------------------------------------
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// space
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//---------------------------------------------------------
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Space Glissando::space() const
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{
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return Space(0.0, spatium() * 2.0);
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}
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//---------------------------------------------------------
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// computeStartElement
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//---------------------------------------------------------
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/*
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void Glissando::computeStartElement()
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{
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// if there is already a start note, done.
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if (_startElement != nullptr && _startElement->type() == Element::Type::NOTE)
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return;
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// if neither a start note or an end note, we got a problem!
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if (_endElement == nullptr || _endElement->type() != Element::Type::NOTE) {
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// TODO: no start, no end: we probably should delete this glissando or just abort() ?
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return;
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}
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int trk = track();
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Part* part = _endElement->staff()->part();
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Segment* segm = static_cast<Note*>(_endElement)->chord()->segment();
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if (segm != nullptr)
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segm = segm->prev1();
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while (segm) {
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// if previous segment is a ChordRest segment
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if (segm->segmentType() == Segment::Type::ChordRest) {
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// look for a Chord in the same track and get its top note, if found
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if (segm->element(trk) && segm->element(trk)->type() == Element::Type::CHORD) {
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_startElement = static_cast<Chord*>(segm->element(trk))->upNote();
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_startElement->add(this);
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return;
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}
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// if no chord, look for other chords in the same instrument
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for (Element* currChord : segm->elist())
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if (currChord != nullptr && currChord->type() == Element::Type::CHORD
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&& static_cast<Chord*>(currChord)->staff()->part() == part) {
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_startElement = static_cast<Chord*>(currChord->upNote();
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_startElement->add(this);
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return;
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}
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}
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segm = segm->prev1();
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}
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// we have a problem! delete this glissando? abort()?
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qDebug("no first note for glissando found");
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}
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*/
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//---------------------------------------------------------
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// undoSetGlissandoType
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//---------------------------------------------------------
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void Glissando::undoSetGlissandoType(Type t)
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{
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score()->undoChangeProperty(this, P_ID::GLISS_TYPE, int(t));
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}
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//---------------------------------------------------------
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// undoSetText
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//---------------------------------------------------------
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void Glissando::undoSetText(const QString& s)
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{
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score()->undoChangeProperty(this, P_ID::GLISS_TEXT, s);
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}
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//---------------------------------------------------------
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// undoSetShowText
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//---------------------------------------------------------
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void Glissando::undoSetShowText(bool f)
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{
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score()->undoChangeProperty(this, P_ID::GLISS_SHOW_TEXT, f);
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}
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//---------------------------------------------------------
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// STATIC FUNCTIONS: guessInitialNote
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//
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// Used while reading old scores to determine (guess!) the glissando initial note
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// from its final chord. Returns the top note of previous chord of the same instrument,
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// preferring the chord in the same track as chord, if it exists.
|
|
//
|
|
// Can be called when the final chord and/or its segment do not exist yet in the score
|
|
// (i.e. while reading the chord itself).
|
|
//
|
|
// Parameter: chord: the chord this glissando ends into
|
|
// Returns: the top note in a suitable previous chord or nullptr if none found.
|
|
//---------------------------------------------------------
|
|
|
|
Note* Glissando::guessInitialNote(Chord* chord)
|
|
{
|
|
int chordTrack = chord->track();
|
|
Segment* segm = chord->segment();
|
|
Part* part = chord->staff()->part();
|
|
if (segm != nullptr)
|
|
segm = segm->prev1();
|
|
while (segm) {
|
|
// if previous segment is a ChordRest segment
|
|
if (segm->segmentType() == Segment::Type::ChordRest) {
|
|
// look for a Chord in the same track and returns its top note, if found
|
|
if (segm->element(chordTrack) && segm->element(chordTrack)->type() == Element::Type::CHORD)
|
|
return static_cast<Chord*>(segm->element(chordTrack))->upNote();
|
|
// if no chord, look for other chords in the same instrument
|
|
for (Element* currChord : segm->elist())
|
|
if (currChord != nullptr && currChord->type() == Element::Type::CHORD
|
|
&& static_cast<Chord*>(currChord)->staff()->part() == part)
|
|
return static_cast<Chord*>(currChord)->upNote();
|
|
}
|
|
segm = segm->prev1();
|
|
}
|
|
qDebug("no first note for glissando found");
|
|
return nullptr;
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// STATIC FUNCTIONS: guessFinalNote
|
|
//
|
|
// Used while dropping a glissando on a note to determine (guess!) the glissando final note from its initial chord.
|
|
// Returns the top note of next chord of the same instrument,
|
|
// preferring the chord in the same track as chord, if it exists.
|
|
//
|
|
// Parameter: chord: the chord this glissando start from
|
|
// Returns: the top note in a suitable following chord or nullptr if none found
|
|
//---------------------------------------------------------
|
|
|
|
Note* Glissando::guessFinalNote(Chord* chord)
|
|
{
|
|
int chordTrack = chord->track();
|
|
Segment* segm = chord->segment();
|
|
Part* part = chord->staff()->part();
|
|
if (segm != nullptr)
|
|
segm = segm->next1();
|
|
while (segm) {
|
|
// if next segment is a ChordRest segment
|
|
if (segm->segmentType() == Segment::Type::ChordRest) {
|
|
// look for a Chord in the same track and returns its top note, if found
|
|
if (segm->element(chordTrack) && segm->element(chordTrack)->type() == Element::Type::CHORD)
|
|
return static_cast<Chord*>(segm->element(chordTrack))->upNote();
|
|
// if no chord, look for other chords in the same instrument
|
|
for (Element* currChord : segm->elist())
|
|
if (currChord != nullptr && currChord->type() == Element::Type::CHORD
|
|
&& static_cast<Chord*>(currChord)->staff()->part() == part)
|
|
return static_cast<Chord*>(currChord)->upNote();
|
|
}
|
|
segm = segm->next1();
|
|
}
|
|
qDebug("no second note for glissando found");
|
|
return nullptr;
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// getProperty
|
|
//---------------------------------------------------------
|
|
|
|
QVariant Glissando::getProperty(P_ID propertyId) const
|
|
{
|
|
switch (propertyId) {
|
|
case P_ID::GLISS_TYPE:
|
|
return int(glissandoType());
|
|
case P_ID::GLISS_TEXT:
|
|
return text();
|
|
case P_ID::GLISS_SHOW_TEXT:
|
|
return showText();
|
|
default:
|
|
break;
|
|
}
|
|
return SLine::getProperty(propertyId);
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// setProperty
|
|
//---------------------------------------------------------
|
|
|
|
bool Glissando::setProperty(P_ID propertyId, const QVariant& v)
|
|
{
|
|
switch (propertyId) {
|
|
case P_ID::GLISS_TYPE:
|
|
setGlissandoType(Type(v.toInt()));
|
|
break;
|
|
case P_ID::GLISS_TEXT:
|
|
setText(v.toString());
|
|
break;
|
|
case P_ID::GLISS_SHOW_TEXT:
|
|
setShowText(v.toBool());
|
|
break;
|
|
default:
|
|
if (!SLine::setProperty(propertyId, v))
|
|
return false;
|
|
break;
|
|
}
|
|
score()->setLayoutAll(true);
|
|
return true;
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// propertyDefault
|
|
//---------------------------------------------------------
|
|
|
|
QVariant Glissando::propertyDefault(P_ID propertyId) const
|
|
{
|
|
switch (propertyId) {
|
|
case P_ID::GLISS_TYPE:
|
|
return int(Type::STRAIGHT);
|
|
case P_ID::GLISS_TEXT:
|
|
return "gliss.";
|
|
case P_ID::GLISS_SHOW_TEXT:
|
|
return true;
|
|
default:
|
|
break;
|
|
}
|
|
return SLine::propertyDefault(propertyId);
|
|
}
|
|
|
|
}
|
|
|