//============================================================================= // MuseScore // Music Composition & Notation // // Copyright (C) 2002-2011 Werner Schweer // // This program is free software; you can redistribute it and/or modify // it under the terms of the GNU General Public License version 2 // as published by the Free Software Foundation and appearing in // the file LICENCE.GPL //============================================================================= #include "tremolo.h" #include "score.h" #include "style.h" #include "chord.h" #include "note.h" #include "measure.h" #include "segment.h" #include "stem.h" namespace Ms { //--------------------------------------------------------- // Tremolo //--------------------------------------------------------- Tremolo::Tremolo(Score* score) : Element(score) { setTremoloType(TREMOLO_R8); _chord1 = 0; _chord2 = 0; setFlags(ELEMENT_MOVABLE | ELEMENT_SELECTABLE); } //--------------------------------------------------------- // draw //--------------------------------------------------------- void Tremolo::draw(QPainter* painter) const { painter->setBrush(QBrush(curColor())); painter->setPen(Qt::NoPen); painter->drawPath(path); if ((parent() == 0) && !twoNotes()) { qreal x = 0.0; // bbox().width() * .25; QPen pen(curColor(), point(score()->styleS(ST_stemWidth))); painter->setPen(pen); qreal _spatium = spatium(); painter->drawLine(QLineF(x, -_spatium*.5, x, path.boundingRect().height() + _spatium)); } } //--------------------------------------------------------- // setTremoloType //--------------------------------------------------------- void Tremolo::setTremoloType(TremoloType t) { _tremoloType = t; switch (tremoloType()) { case TREMOLO_R16: case TREMOLO_C16: _lines = 2; break; case TREMOLO_R32: case TREMOLO_C32: _lines = 3; break; case TREMOLO_R64: case TREMOLO_C64: _lines = 4; break; default: _lines = 1; break; } } //--------------------------------------------------------- // layout //--------------------------------------------------------- void Tremolo::layout() { qreal _spatium = spatium(); qreal w2 = _spatium * score()->styleS(ST_tremoloWidth).val() * .5; qreal h2 = _spatium * score()->styleS(ST_tremoloBoxHeight).val() * .5; qreal lw = _spatium * score()->styleS(ST_tremoloStrokeWidth).val(); qreal td = _spatium * score()->styleS(ST_tremoloDistance).val(); path = QPainterPath(); qreal ty = 0.0; for (int i = 0; i < _lines; ++i) { path.moveTo(-w2, ty + h2 - lw); path.lineTo( w2, ty - h2); path.lineTo( w2, ty - h2 + lw); path.lineTo(-w2, ty + h2); path.closeSubpath(); ty += td; } QRectF rect = path.boundingRect(); if ((parent() == 0) && !twoNotes()) rect.setHeight(rect.height() + _spatium); setbbox(rect); _chord1 = static_cast(parent()); if (_chord1 == 0) return; Note* anchor1 = _chord1->upNote(); Stem* stem = _chord1->stem(); qreal x, y, h; if (stem) { x = stem->pos().x(); y = stem->pos().y(); h = stem->stemLen(); } else { // center tremolo above note x = anchor1->x() + anchor1->headWidth() * .5; y = anchor1->y(); h = 2.0 * _spatium + bbox().height(); if (anchor1->line() > 4) h *= -1; } if (!twoNotes()) { // // single note tremolos // bool up = _chord1->up(); int line = up ? _chord1->upLine() : _chord1->downLine(); static const qreal t[3][2][4][2] = { // normal stem { // DOWN { // even line odd line { 6, 5 }, // line 1 { 6 - 2 * .8, 5 - 2 * .8 }, // line 2 { 6 - 4 * .8, 3 }, // line 3 { 2 , 3 } // line 4 }, // UP { // even line odd line { -6, -5 }, // line 1 { -6, -5 }, // line 2 { -6, -3 - 4 * .8 }, // line 3 { -2 - 6 * .8, -3 - 6 * .8 } // line 4 } }, // stem with hook { // DOWN { // even line odd line { 3, 3 }, // line 1 { 2, 2 }, // line 2 { 2, 2 }, // line 3 { 2, 2 } // line 4 }, // UP { // even line odd line { -3, -3 }, // line 1 { -2 - 2 * .8, -2 - 2 * .8 }, // line 2 { -2 - 4 * .8, -2 - 4 * .8 }, // line 3 { -2 - 6 * .8, -2 - 6 * .8 } // line 4 } }, // stem with beam { // DOWN { // even line odd line { 3, 3 }, // line 1 { 2, 2 }, // line 2 { 2, 2 }, // line 3 { 2, 2 } // line 4 }, // UP { // even line odd line { -3, -3 }, // line 1 { -2 - 2 * .8, -2 - 2 * .8 }, // line 2 { -2 - 4 * .8, -2 - 4 * .8 }, // line 3 { -2 - 6 * .8, -2 - 6 * .8 } // line 4 } }, }; int idx = _chord1->hook() ? 1 : (_chord1->beam() ? 2 : 0); y = (line + t[idx][up][_lines-1][line & 1]) * _spatium * .5; setPos(x, y); _chord1->setTremoloChordType(TremoloSingle); return; } y += (h - bbox().height()) * .5; // // two chord tremolo // Segment* s = _chord1->segment()->next(); while (s) { if (s->element(track()) && (s->element(track())->type() == CHORD)) break; s = s->next(); } if (s == 0) { qDebug("no second note of tremolo found\n"); return; } _chord1->setTremoloChordType(TremoloFirstNote); _chord2 = static_cast(s->element(track())); _chord2->setTremolo(this); _chord2->setTremoloChordType(TremoloSecondNote); int x2 = _chord2->stemPosBeam().x(); int x1 = _chord1->stemPosBeam().x(); // qreal x2 = _chord2->_chord2->up()stemPos(_chord2->up(), true).x(); // qreal x1 = _chord1->stemPos(_chord1->up(), true).x(); x = x1 - _chord1->pagePos().x() + (x2 - x1 + _chord1->upNote()->headWidth()) * .5; setPos(x, y); } //--------------------------------------------------------- // write //--------------------------------------------------------- void Tremolo::write(Xml& xml) const { xml.stag(name()); xml.tag("subtype", tremoloTypeName()); Element::writeProperties(xml); xml.etag(); } //--------------------------------------------------------- // read //--------------------------------------------------------- void Tremolo::read(XmlReader& e) { while (e.readNextStartElement()) { if (e.name() == "subtype") setTremoloType(e.readElementText()); else if (!Element::readProperties(e)) e.unknown(); } } //--------------------------------------------------------- // tremoloTypeName //--------------------------------------------------------- QString Tremolo::tremoloTypeName() const { switch(tremoloType()) { case TREMOLO_R8: return QString("r8"); case TREMOLO_R16: return QString("r16"); case TREMOLO_R32: return QString("r32"); case TREMOLO_R64: return QString("r64"); case TREMOLO_C8: return QString("c8"); case TREMOLO_C16: return QString("c16"); case TREMOLO_C32: return QString("c32"); case TREMOLO_C64: return QString("c64"); default: break; } return QString("??"); } //--------------------------------------------------------- // setTremoloType //--------------------------------------------------------- void Tremolo::setTremoloType(const QString& s) { TremoloType t; if (s == "r8") t = TREMOLO_R8; else if (s == "r16") t = TREMOLO_R16; else if (s == "r32") t = TREMOLO_R32; else if (s == "r64") t = TREMOLO_R64; else if (s == "c8") t = TREMOLO_C8; else if (s == "c16") t = TREMOLO_C16; else if (s == "c32") t = TREMOLO_C32; else if (s == "c64") t = TREMOLO_C64; else t = TremoloType(s.toInt()); // for compatibility with old tremolo type setTremoloType(t); } //--------------------------------------------------------- // tremoloLen //--------------------------------------------------------- Fraction Tremolo::tremoloLen() const { Fraction f; switch(lines()) { case 1: f.set(1,8); break; case 2: f.set(1,16); break; case 3: f.set(1,32); break; case 4: f.set(1,64); break; } return f; } }