MuseScore/libmscore/bracket.cpp

502 lines
18 KiB
C++

//=============================================================================
// MuseScore
// Music Composition & Notation
//
// Copyright (C) 2002-2013 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 "bracket.h"
#include "xml.h"
#include "style.h"
#include "utils.h"
#include "staff.h"
#include "score.h"
#include "system.h"
#include "sym.h"
#include "mscore.h"
#include "bracketItem.h"
namespace Ms {
//---------------------------------------------------------
// Bracket
//---------------------------------------------------------
Bracket::Bracket(Score* s)
: Element(s)
{
h2 = 3.5 * spatium();
_firstStaff = 0;
_lastStaff = 0;
_bi = 0;
setGenerated(true); // brackets are not saved
}
Bracket::~Bracket()
{
}
//---------------------------------------------------------
// setHeight
//---------------------------------------------------------
void Bracket::setHeight(qreal h)
{
h2 = h * .5;
}
//---------------------------------------------------------
// width
//---------------------------------------------------------
qreal Bracket::width() const
{
qreal w;
switch (bracketType()) {
case BracketType::BRACE:
if (score()->styleSt(Sid::MusicalSymbolFont) == "Emmentaler" || score()->styleSt(Sid::MusicalSymbolFont) == "Gonville")
w = score()->styleP(Sid::akkoladeWidth) + score()->styleP(Sid::akkoladeBarDistance);
else
w = (symWidth(_braceSymbol) * _magx) + score()->styleP(Sid::akkoladeBarDistance);
break;
case BracketType::NORMAL:
w = score()->styleP(Sid::bracketWidth) + score()->styleP(Sid::bracketDistance);
break;
case BracketType::SQUARE:
w = score()->styleP(Sid::staffLineWidth) + spatium() * .5;
break;
case BracketType::LINE:
w = 0.67f * score()->styleP(Sid::bracketWidth) + score()->styleP(Sid::bracketDistance);
break;
case BracketType::NO_BRACKET:
default:
w = 0.0;
break;
}
return w;
}
//---------------------------------------------------------
// setStaffSpan
//---------------------------------------------------------
void Bracket::setStaffSpan(int a, int b)
{
_firstStaff = a;
_lastStaff = b;
if (bracketType() == BracketType::BRACE &&
score()->styleSt(Sid::MusicalSymbolFont) != "Emmentaler" && score()->styleSt(Sid::MusicalSymbolFont) != "Gonville")
{
int v = _lastStaff - _firstStaff + 1;
// total default height of a system of n staves / height of a 5 line staff
_magx = v + ((v - 1) * score()->styleS(Sid::akkoladeDistance).val() / 4.0);
if (v == 1)
_braceSymbol = SymId::braceSmall;
else if (v <= 2)
_braceSymbol = SymId::brace;
else if (v <= 3)
_braceSymbol = SymId::braceLarge;
else
_braceSymbol = SymId::braceLarger;
}
}
//---------------------------------------------------------
// layout
//---------------------------------------------------------
void Bracket::layout()
{
path = QPainterPath();
if (h2 == 0.0)
return;
_shape.clear();
switch (bracketType()) {
case BracketType::BRACE: {
if (score()->styleSt(Sid::MusicalSymbolFont) == "Emmentaler" || score()->styleSt(Sid::MusicalSymbolFont) == "Gonville") {
_braceSymbol = SymId::noSym;
qreal w = score()->styleP(Sid::akkoladeWidth);
#define XM(a) (a+700)*w/700
#define YM(a) (a+7100)*h2/7100
path.moveTo( XM( -8), YM(-2048));
path.cubicTo(XM( -8), YM(-3192), XM(-360), YM(-4304), XM( -360), YM(-5400)); // c 0
path.cubicTo(XM( -360), YM(-5952), XM(-264), YM(-6488), XM( 32), YM(-6968)); // c 1
path.cubicTo(XM( 36), YM(-6974), XM( 38), YM(-6984), XM( 38), YM(-6990)); // c 0
path.cubicTo(XM( 38), YM(-7008), XM( 16), YM(-7024), XM( 0), YM(-7024)); // c 0
path.cubicTo(XM( -8), YM(-7024), XM( -22), YM(-7022), XM( -32), YM(-7008)); // c 1
path.cubicTo(XM( -416), YM(-6392), XM(-544), YM(-5680), XM( -544), YM(-4960)); // c 0
path.cubicTo(XM( -544), YM(-3800), XM(-168), YM(-2680), XM( -168), YM(-1568)); // c 0
path.cubicTo(XM( -168), YM(-1016), XM(-264), YM( -496), XM( -560), YM( -16)); // c 1
path.lineTo( XM( -560), YM( 0)); // l 1
path.lineTo( XM( -560), YM( 16)); // l 1
path.cubicTo(XM( -264), YM( 496), XM(-168), YM( 1016), XM( -168), YM( 1568)); // c 0
path.cubicTo(XM( -168), YM( 2680), XM(-544), YM( 3800), XM( -544), YM( 4960)); // c 0
path.cubicTo(XM( -544), YM( 5680), XM(-416), YM( 6392), XM( -32), YM( 7008)); // c 1
path.cubicTo(XM( -22), YM( 7022), XM( -8), YM( 7024), XM( 0), YM( 7024)); // c 0
path.cubicTo(XM( 16), YM( 7024), XM( 38), YM( 7008), XM( 38), YM( 6990)); // c 0
path.cubicTo(XM( 38), YM( 6984), XM( 36), YM( 6974), XM( 32), YM( 6968)); // c 1
path.cubicTo(XM( -264), YM( 6488), XM(-360), YM( 5952), XM( -360), YM( 5400)); // c 0
path.cubicTo(XM( -360), YM( 4304), XM( -8), YM( 3192), XM( -8), YM( 2048)); // c 0
path.cubicTo(XM( - 8), YM( 1320), XM(-136), YM( 624), XM( -512), YM( 0)); // c 1
path.cubicTo(XM( -136), YM( -624), XM( -8), YM(-1320), XM( -8), YM(-2048)); // c 0*/
setbbox(path.boundingRect());
_shape.add(bbox());
}
else {
qreal h = h2 * 2;
qreal w = symWidth(_braceSymbol) * _magx;
bbox().setRect(0, 0, w, h);
_shape.add(bbox());
}
}
break;
case BracketType::NORMAL: {
qreal _spatium = spatium();
qreal w = score()->styleP(Sid::bracketWidth) * .5;
qreal x = -w;
qreal bd = _spatium * .25;
_shape.add(QRectF(x, -bd, w * 2, 2 * (h2+bd)));
_shape.add(symBbox(SymId::bracketTop).translated(QPointF(-w, -bd)));
_shape.add(symBbox(SymId::bracketBottom).translated(QPointF(-w, bd + 2*h2)));
w += symWidth(SymId::bracketTop);
qreal y = - symHeight(SymId::bracketTop) - bd;
qreal h = (-y + h2) * 2;
bbox().setRect(x, y, w, h);
}
break;
case BracketType::SQUARE: {
qreal w = score()->styleP(Sid::staffLineWidth) * .5;
qreal x = -w;
qreal y = -w;
qreal h = (h2 + w) * 2 ;
w += (.5 * spatium() + 3* w);
bbox().setRect(x, y, w, h);
_shape.add(bbox());
}
break;
case BracketType::LINE: {
qreal _spatium = spatium();
qreal w = 0.67 * score()->styleP(Sid::bracketWidth) * .5;
qreal x = -w;
qreal bd = _spatium * .25;
qreal y = -bd;
qreal h = (-y + h2) * 2;
bbox().setRect(x, y, w, h);
_shape.add(bbox());
}
break;
case BracketType::NO_BRACKET:
break;
}
}
//---------------------------------------------------------
// draw
//---------------------------------------------------------
void Bracket::draw(QPainter* painter) const
{
if (h2 == 0.0)
return;
switch (bracketType()) {
case BracketType::BRACE: {
if (_braceSymbol == SymId::noSym) {
painter->setPen(Qt::NoPen);
painter->setBrush(QBrush(curColor()));
painter->drawPath(path);
}
else {
qreal h = 2 * h2;
qreal _spatium = spatium();
qreal mag = h / (4 *_spatium);
painter->setPen(curColor());
painter->save();
painter->scale(_magx, mag);
drawSymbol(_braceSymbol, painter, QPointF(0, h/mag));
painter->restore();
}
}
break;
case BracketType::NORMAL: {
qreal h = 2 * h2;
qreal _spatium = spatium();
qreal w = score()->styleP(Sid::bracketWidth);
qreal bd = _spatium * .25;
QPen pen(curColor(), w, Qt::SolidLine, Qt::FlatCap);
painter->setPen(pen);
painter->drawLine(QLineF(0.0, -bd - w * .5, 0.0, h + bd + w * .5));
qreal x = -w * .5;
qreal y1 = -bd;
qreal y2 = h + bd;
drawSymbol(SymId::bracketTop, painter, QPointF(x, y1));
drawSymbol(SymId::bracketBottom, painter, QPointF(x, y2));
}
break;
case BracketType::SQUARE: {
qreal h = 2 * h2;
qreal _spatium = spatium();
qreal w = score()->styleP(Sid::staffLineWidth);
QPen pen(curColor(), w, Qt::SolidLine, Qt::SquareCap);
painter->setPen(pen);
painter->drawLine(QLineF(0.0, 0.0, 0.0, h));
painter->drawLine(QLineF(0.0, 0.0, w + .5 *_spatium, 0.0));
painter->drawLine(QLineF(0.0, h , w + .5 *_spatium, h));
}
break;
case BracketType::LINE: {
qreal h = 2 * h2;
qreal _spatium = spatium();
qreal w = 0.67 * score()->styleP(Sid::bracketWidth);
QPen pen(curColor(), w, Qt::SolidLine, Qt::FlatCap);
painter->setPen(pen);
qreal bd = _spatium * .25;
painter->drawLine(QLineF(0.0, -bd, 0.0, h + bd));
}
break;
case BracketType::NO_BRACKET:
break;
}
}
//---------------------------------------------------------
// startEdit
//---------------------------------------------------------
void Bracket::startEdit(EditData& ed)
{
Element::startEdit(ed);
ed.grips = 1;
ed.curGrip = Grip::START;
}
//---------------------------------------------------------
// updateGrips
//---------------------------------------------------------
void Bracket::updateGrips(EditData& ed) const
{
ed.grip[0].translate(QPointF(0.0, h2 * 2) + pagePos());
}
//---------------------------------------------------------
// endEdit
//---------------------------------------------------------
void Bracket::endEdit(EditData& ed)
{
endEditDrag(ed);
}
//---------------------------------------------------------
// editDrag
//---------------------------------------------------------
void Bracket::editDrag(EditData& ed)
{
h2 += ed.delta.y() * .5;
layout();
}
//---------------------------------------------------------
// endEditDrag
// snap to nearest staff
//---------------------------------------------------------
void Bracket::endEditDrag(EditData&)
{
qreal ay1 = pagePos().y();
qreal ay2 = ay1 + h2 * 2;
int staffIdx1 = staffIdx();
int staffIdx2;
int n = system()->staves()->size();
if (staffIdx1 + 1 >= n)
staffIdx2 = staffIdx1;
else {
qreal ay = parent()->pagePos().y();
System* s = system();
qreal y = s->staff(staffIdx1)->y() + ay;
qreal h1 = staff()->height();
for (staffIdx2 = staffIdx1 + 1; staffIdx2 < n; ++staffIdx2) {
qreal h = s->staff(staffIdx2)->y() + ay - y;
if (ay2 < (y + (h + h1) * .5))
break;
y += h;
}
staffIdx2 -= 1;
}
qreal sy = system()->staff(staffIdx1)->y();
qreal ey = system()->staff(staffIdx2)->y() + score()->staff(staffIdx2)->height();
h2 = (ey - sy) * .5;
bracketItem()->undoChangeProperty(Pid::BRACKET_SPAN, staffIdx2 - staffIdx1 + 1);
}
//---------------------------------------------------------
// acceptDrop
//---------------------------------------------------------
bool Bracket::acceptDrop(EditData& data) const
{
return data.element->type() == ElementType::BRACKET;
}
//---------------------------------------------------------
// drop
//---------------------------------------------------------
Element* Bracket::drop(EditData& data)
{
Element* e = data.element;
Bracket* b = 0;
if (e->isBracket()) {
b = toBracket(e);
undoChangeProperty(Pid::SYSTEM_BRACKET, int(b->bracketType()));
}
delete e;
return this;
}
//---------------------------------------------------------
// edit
// return true if event is accepted
//---------------------------------------------------------
bool Bracket::edit(EditData& ed)
{
if (!(ed.modifiers & Qt::ShiftModifier))
return false;
if (ed.key == Qt::Key_Left) {
bracketItem()->undoChangeProperty(Pid::BRACKET_COLUMN, bracketItem()->column()+1);
return true;
}
if (ed.key == Qt::Key_Right) {
if (bracketItem()->column() == 0)
return true;
bracketItem()->undoChangeProperty(Pid::BRACKET_COLUMN, bracketItem()->column()-1);
return true;
}
return false;
}
//---------------------------------------------------------
// getProperty
//---------------------------------------------------------
QVariant Bracket::getProperty(Pid id) const
{
QVariant v = Element::getProperty(id);
if (!v.isValid())
v = _bi->getProperty(id);
return v;
}
//---------------------------------------------------------
// setProperty
//---------------------------------------------------------
bool Bracket::setProperty(Pid id, const QVariant& v)
{
return _bi->setProperty(id, v);
}
//---------------------------------------------------------
// propertyDefault
//---------------------------------------------------------
QVariant Bracket::propertyDefault(Pid id) const
{
if (id == Pid::BRACKET_COLUMN)
return 0;
QVariant v = Element::propertyDefault(id);
if (!v.isValid())
v = _bi->propertyDefault(id);
return v;
}
//---------------------------------------------------------
// setSelected
//---------------------------------------------------------
void Bracket::setSelected(bool f)
{
_bi->setSelected(f);
Element::setSelected(f);
}
//---------------------------------------------------------
// Bracket::write
// used only for palettes
//---------------------------------------------------------
void Bracket::write(XmlWriter& xml) const
{
switch (_bi->bracketType()) {
case BracketType::BRACE:
xml.stag("Bracket type=\"Brace\"");
break;
case BracketType::NORMAL:
xml.stag("Bracket");
break;
case BracketType::SQUARE:
xml.stag("Bracket type=\"Square\"");
break;
case BracketType::LINE:
xml.stag("Bracket type=\"Line\"");
break;
case BracketType::NO_BRACKET:
break;
}
if (_bi->column())
xml.tag("level", _bi->column());
Element::writeProperties(xml);
xml.etag();
}
//---------------------------------------------------------
// Bracket::read
// used only for palettes
//---------------------------------------------------------
void Bracket::read(XmlReader& e)
{
QString t(e.attribute("type", "Normal"));
_bi = new BracketItem(score());
if (t == "Normal")
_bi->setBracketType(BracketType::NORMAL);
else if (t == "Akkolade") //compatibility, not used anymore
_bi->setBracketType(BracketType::BRACE);
else if (t == "Brace")
_bi->setBracketType(BracketType::BRACE);
else if (t == "Square")
_bi->setBracketType(BracketType::SQUARE);
else if (t == "Line")
_bi->setBracketType(BracketType::LINE);
else
qDebug("unknown brace type <%s>", qPrintable(t));
while (e.readNextStartElement()) {
if (e.name() == "level")
_bi->setColumn(e.readInt());
else if (!Element::readProperties(e))
e.unknown();
}
}
}