354 lines
11 KiB
C++
354 lines
11 KiB
C++
//=============================================================================
|
|
// MuseScore
|
|
// Music Composition & Notation
|
|
//
|
|
// Copyright (C) 2010-2011 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 "stem.h"
|
|
#include "staff.h"
|
|
#include "chord.h"
|
|
#include "score.h"
|
|
#include "stafftype.h"
|
|
#include "hook.h"
|
|
#include "tremolo.h"
|
|
#include "note.h"
|
|
|
|
// TEMPORARY HACK!!
|
|
#include "sym.h"
|
|
// END OF HACK
|
|
|
|
namespace Ms {
|
|
|
|
//---------------------------------------------------------
|
|
// Stem
|
|
// Notenhals
|
|
//---------------------------------------------------------
|
|
|
|
Stem::Stem(Score* s)
|
|
: Element(s)
|
|
{
|
|
_len = 0.0;
|
|
_userLen = 0.0;
|
|
setFlags(ELEMENT_SELECTABLE);
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// up
|
|
//---------------------------------------------------------
|
|
|
|
bool Stem::up() const
|
|
{
|
|
return chord() ? chord()->up() : true;
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// stemLen
|
|
//---------------------------------------------------------
|
|
|
|
qreal Stem::stemLen() const
|
|
{
|
|
return up() ? -_len : _len;
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// lineWidth
|
|
//---------------------------------------------------------
|
|
|
|
qreal Stem::lineWidth() const
|
|
{
|
|
return point(score()->styleS(ST_stemWidth));
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// layout
|
|
//---------------------------------------------------------
|
|
|
|
void Stem::layout()
|
|
{
|
|
qreal l = _len + _userLen;
|
|
qreal _up = up() ? -1.0 : 1.0;
|
|
l *= _up;
|
|
|
|
qreal y1 = 0.0; // vertical displacement to match note attach point
|
|
Staff* st = staff();
|
|
if (chord() && st ) {
|
|
if (st->isTabStaff() ) { // TAB staves
|
|
if ( ((StaffTypeTablature*)st->staffType())->stemThrough()) {
|
|
// if stems through staves, gets Y pos. of stem-side note relative to chord other side
|
|
qreal lineDist = st->lineDistance() * spatium();
|
|
y1 = (chord()->downString() - chord()->upString() ) * _up * lineDist;
|
|
// if fret marks above lines, raise stem beginning by 1/2 line distance
|
|
if ( !((StaffTypeTablature*)st->staffType())->onLines() )
|
|
y1 -= lineDist * 0.5;
|
|
// shorten stem by 1/2 lineDist to clear the note and a little more to keep 'air' betwen stem and note
|
|
lineDist *= 0.7 * mag();
|
|
y1 += _up * lineDist;
|
|
}
|
|
// in other TAB types, no correction
|
|
}
|
|
else { // non-TAB
|
|
// move stem start to note attach point
|
|
Note* n = up() ? chord()->downNote() : chord()->upNote();
|
|
if (n->mirror())
|
|
_up *= -1;
|
|
y1 -= n->attach().y() * _up;
|
|
}
|
|
}
|
|
|
|
line.setLine(0.0, y1, 0.0, l);
|
|
|
|
// compute bounding rectangle
|
|
QRectF r(line.p1(), line.p2());
|
|
qreal lw5 = lineWidth() * .5;
|
|
setbbox(r.normalized().adjusted(-lw5, -lw5, lw5, lw5));
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// setLen
|
|
//---------------------------------------------------------
|
|
|
|
void Stem::setLen(qreal v)
|
|
{
|
|
_len = (v < 0.0) ? -v : v;
|
|
layout();
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// spatiumChanged
|
|
//---------------------------------------------------------
|
|
|
|
void Stem::spatiumChanged(qreal oldValue, qreal newValue)
|
|
{
|
|
_userLen = (_userLen / oldValue) * newValue;
|
|
layout();
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// draw
|
|
//---------------------------------------------------------
|
|
|
|
void Stem::draw(QPainter* painter) const
|
|
{
|
|
// hide if second chord of a cross-measure pair
|
|
if (chord() && chord()->crossMeasure() == CROSSMEASURE_SECOND)
|
|
return;
|
|
|
|
Staff* st = staff();
|
|
bool useTab = st && st->isTabStaff();
|
|
|
|
if (useTab && st->staffType()->slashStyle())
|
|
return;
|
|
qreal lw = lineWidth();
|
|
painter->setPen(QPen(curColor(), lw, Qt::SolidLine, Qt::RoundCap));
|
|
painter->drawLine(line);
|
|
if (!useTab || !chord())
|
|
return;
|
|
|
|
// TODO: adjust bounding rectangle in layout() for dots and for slash
|
|
StaffTypeTablature* stt = static_cast<StaffTypeTablature*>(st->staffType());
|
|
qreal sp = spatium();
|
|
bool _up = up();
|
|
|
|
// slashed half note stem
|
|
if (chord()->durationType().type() == TDuration::V_HALF && stt->minimStyle() == TAB_MINIM_SLASHED) {
|
|
// position slashes onto stem
|
|
qreal y = _up ? -(_len+_userLen) + STAFFTYPE_TAB_SLASH_2STARTY_UP*sp : (_len+_userLen) - STAFFTYPE_TAB_SLASH_2STARTY_DN*sp;
|
|
// if stems through, try to align slashes within or across lines
|
|
if (stt->stemThrough()) {
|
|
qreal halfLineDist = stt->lineDistance().val() * sp * 0.5;
|
|
qreal halfSlashHgt = STAFFTYPE_TAB_SLASH_2TOTHEIGHT * sp * 0.5;
|
|
y = lrint( (y + halfSlashHgt) / halfLineDist) * halfLineDist - halfSlashHgt;
|
|
}
|
|
// draw slashes
|
|
qreal hlfWdt= sp * STAFFTYPE_TAB_SLASH_WIDTH * 0.5;
|
|
qreal sln = sp * STAFFTYPE_TAB_SLASH_SLANTY;
|
|
qreal thk = sp * STAFFTYPE_TAB_SLASH_THICK;
|
|
qreal displ = sp * STAFFTYPE_TAB_SLASH_DISPL;
|
|
QPainterPath path;
|
|
for (int i = 0; i < 2; ++i) {
|
|
path.moveTo( hlfWdt, y); // top-right corner
|
|
path.lineTo( hlfWdt, y+thk); // bottom-right corner
|
|
path.lineTo(-hlfWdt, y+thk+sln); // bottom-left corner
|
|
path.lineTo(-hlfWdt, y+sln); // top-left corner
|
|
path.closeSubpath();
|
|
y += displ;
|
|
}
|
|
// setbbox(path.boundingRect());
|
|
painter->setBrush(QBrush(curColor()));
|
|
painter->setPen(Qt::NoPen);
|
|
painter->drawPath(path);
|
|
}
|
|
|
|
// dots
|
|
// NOT THE BEST PLACE FOR THIS?
|
|
// with tablatures and stems beside staves, dots are not drawn near 'notes', but near stems
|
|
int nDots = chord()->dots();
|
|
if (nDots > 0 && !stt->stemThrough()) {
|
|
qreal y = ( (STAFFTYPE_TAB_DEFAULTSTEMLEN_DN * 0.2) * sp) * (_up ? -1.0 : 1.0);
|
|
drawSymbol(SymId::augmentationDot, painter, QPointF(STAFFTYPE_TAB_DEFAULTDOTDIST_X * sp, y), nDots);
|
|
}
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// write
|
|
//---------------------------------------------------------
|
|
|
|
void Stem::write(Xml& xml) const
|
|
{
|
|
xml.stag("Stem");
|
|
Element::writeProperties(xml);
|
|
if (_userLen != 0.0)
|
|
xml.tag("userLen", _userLen / spatium());
|
|
xml.etag();
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// read
|
|
//---------------------------------------------------------
|
|
|
|
void Stem::read(XmlReader& e)
|
|
{
|
|
while (e.readNextStartElement()) {
|
|
const QStringRef& tag(e.name());
|
|
if (tag == "userLen")
|
|
_userLen = e.readDouble() * spatium();
|
|
else if (tag == "subtype") // obsolete
|
|
e.skipCurrentElement();
|
|
else if (!Element::readProperties(e))
|
|
e.unknown();
|
|
}
|
|
if (_userLen < 0.0)
|
|
_userLen = -_userLen;
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// updateGrips
|
|
//---------------------------------------------------------
|
|
|
|
void Stem::updateGrips(int* grips, int* defaultGrip, QRectF* grip) const
|
|
{
|
|
*grips = 1;
|
|
*defaultGrip = 0;
|
|
grip[0].translate(pagePos() + line.p2());
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// startEdit
|
|
//---------------------------------------------------------
|
|
|
|
void Stem::startEdit(MuseScoreView*, const QPointF&)
|
|
{
|
|
undoPushProperty(P_USER_LEN);
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// editDrag
|
|
//---------------------------------------------------------
|
|
|
|
void Stem::editDrag(const EditData& ed)
|
|
{
|
|
qreal yDelta = ed.delta.y();
|
|
_userLen += up() ? -yDelta : yDelta;
|
|
layout();
|
|
Chord* c = static_cast<Chord*>(parent());
|
|
if (c->hook())
|
|
c->hook()->move(0.0, ed.delta.y());
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// reset
|
|
//---------------------------------------------------------
|
|
|
|
void Stem::reset()
|
|
{
|
|
score()->undoChangeProperty(this, P_USER_LEN, 0.0);
|
|
Element::reset();
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// acceptDrop
|
|
//---------------------------------------------------------
|
|
|
|
bool Stem::acceptDrop(MuseScoreView*, const QPointF&, Element* e) const
|
|
{
|
|
if ((e->type() == TREMOLO) && (static_cast<Tremolo*>(e)->tremoloType() <= TREMOLO_R64)) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// drop
|
|
//---------------------------------------------------------
|
|
|
|
Element* Stem::drop(const DropData& data)
|
|
{
|
|
Element* e = data.element;
|
|
Chord* ch = chord();
|
|
switch(e->type()) {
|
|
case TREMOLO:
|
|
e->setParent(ch);
|
|
score()->setLayoutAll(true);
|
|
score()->undoAddElement(e);
|
|
return e;
|
|
default:
|
|
delete e;
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// getProperty
|
|
//---------------------------------------------------------
|
|
|
|
QVariant Stem::getProperty(P_ID propertyId) const
|
|
{
|
|
switch(propertyId) {
|
|
case P_USER_LEN: return userLen();
|
|
default:
|
|
return Element::getProperty(propertyId);
|
|
}
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// setProperty
|
|
//---------------------------------------------------------
|
|
|
|
bool Stem::setProperty(P_ID propertyId, const QVariant& v)
|
|
{
|
|
score()->addRefresh(canvasBoundingRect());
|
|
switch(propertyId) {
|
|
case P_USER_LEN: setUserLen(v.toDouble()); break;
|
|
default:
|
|
return Element::setProperty(propertyId, v);
|
|
}
|
|
score()->addRefresh(canvasBoundingRect());
|
|
layout();
|
|
score()->addRefresh(canvasBoundingRect());
|
|
score()->setLayoutAll(false); //DEBUG
|
|
return true;
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// hookPos
|
|
// in chord coordinates
|
|
//---------------------------------------------------------
|
|
|
|
QPointF Stem::hookPos() const
|
|
{
|
|
QPointF p(pos() + line.p2());
|
|
|
|
qreal xoff = lineWidth() * .5;
|
|
p.rx() += xoff;
|
|
return p;
|
|
}
|
|
|
|
}
|
|
|