MuseScore/libmscore/symbol.cpp
2012-12-18 09:09:11 +01:00

468 lines
14 KiB
C++

//=============================================================================
// MuseScore
// Music Composition & Notation
// $Id: symbol.cpp 5313 2012-02-13 08:39:50Z wschweer $
//
// 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 "symbol.h"
#include "sym.h"
#include "xml.h"
#include "system.h"
#include "staff.h"
#include "measure.h"
#include "page.h"
#include "score.h"
#include "image.h"
#include "segment.h"
#include "mscore.h"
//---------------------------------------------------------
// BSymbol
//---------------------------------------------------------
BSymbol::BSymbol(Score* s)
: Element(s)
{
_z = SYMBOL * 100;
setFlags(ELEMENT_MOVABLE | ELEMENT_SELECTABLE);
}
BSymbol::BSymbol(const BSymbol& s)
: Element(s), ElementLayout(s)
{
_z = s._z;
foreach(Element* e, s._leafs) {
Element* ee = e->clone();
ee->setParent(this);
_leafs.append(ee);
}
}
//---------------------------------------------------------
// add
//---------------------------------------------------------
void BSymbol::add(Element* e)
{
if (e->type() == SYMBOL || e->type() == IMAGE) {
e->setParent(this);
_leafs.append(e);
static_cast<BSymbol*>(e)->setZ(z() - 1); // draw on top of parent
}
else
qDebug("BSymbol::add: unsupported type %s\n", e->name());
}
//---------------------------------------------------------
// remove
//---------------------------------------------------------
void BSymbol::remove(Element* e)
{
if (e->type() == SYMBOL || e->type() == IMAGE) {
if (!_leafs.removeOne(e))
qDebug("BSymbol::remove: element <%s> not found\n", e->name());
}
else
qDebug("BSymbol::remove: unsupported type %s\n", e->name());
}
//---------------------------------------------------------
// scanElements
//---------------------------------------------------------
void BSymbol::scanElements(void* data, void (*func)(void*, Element*), bool all)
{
func(data, this);
foreach (Element* e, _leafs)
e->scanElements(data, func, all);
}
//---------------------------------------------------------
// acceptDrop
//---------------------------------------------------------
bool BSymbol::acceptDrop(MuseScoreView*, const QPointF&, Element* e) const
{
int type = e->type();
return type == SYMBOL || type == IMAGE;
}
//---------------------------------------------------------
// drop
//---------------------------------------------------------
Element* BSymbol::drop(const DropData& data)
{
Element* el = data.element;
if (el->type() == SYMBOL || el->type() == IMAGE) {
el->setParent(this);
QPointF p = data.pos - pagePos() - data.dragOffset;
el->setUserOff(p);
score()->undoAddElement(el);
return el;
}
else
delete el;
return 0;
}
//---------------------------------------------------------
// layout
//---------------------------------------------------------
void BSymbol::layout()
{
foreach(Element* e, _leafs)
e->layout();
adjustReadPos();
}
//---------------------------------------------------------
// drag
//---------------------------------------------------------
QRectF BSymbol::drag(const EditData& data)
{
QRectF r(canvasBoundingRect());
foreach(const Element* e, _leafs)
r |= e->canvasBoundingRect();
qreal x = data.pos.x();
qreal y = data.pos.y();
qreal _spatium = spatium();
if (data.hRaster) {
qreal hRaster = _spatium / MScore::hRaster();
int n = lrint(x / hRaster);
x = hRaster * n;
}
if (data.vRaster) {
qreal vRaster = _spatium / MScore::vRaster();
int n = lrint(y / vRaster);
y = vRaster * n;
}
setUserOff(QPointF(x, y));
r |= canvasBoundingRect();
foreach(const Element* e, _leafs)
r |= e->canvasBoundingRect();
return r;
}
//---------------------------------------------------------
// Symbol
//---------------------------------------------------------
Symbol::Symbol(Score* s)
: BSymbol(s)
{
_sym = sharpSym; // arbitrary valid default
setZ(SYMBOL * 100);
}
Symbol::Symbol(Score* s, SymId sy)
: BSymbol(s)
{
_sym = sy;
setZ(SYMBOL * 100);
}
Symbol::Symbol(const Symbol& s)
: BSymbol(s)
{
_sym = s._sym;
setZ(SYMBOL * 100);
}
//---------------------------------------------------------
// setAbove
//---------------------------------------------------------
void Symbol::setAbove(bool val)
{
setYoff(val ? -2.0 : 7.0);
}
//---------------------------------------------------------
// layout
// height() and width() should return sensible
// values when calling this method
//---------------------------------------------------------
void Symbol::layout()
{
// qreal m = parent() ? parent()->mag() : 1.0;
// if (_small)
// m *= score()->styleD(ST_smallNoteMag);
// setMag(m);
foreach(Element* e, leafs())
e->layout();
ElementLayout::layout(this);
BSymbol::layout();
setbbox(symbols[score()->symIdx()][_sym].bbox(magS()));
}
//---------------------------------------------------------
// Symbol::draw
//---------------------------------------------------------
void Symbol::draw(QPainter* p) const
{
if (type() != NOTEDOT || !staff()->isTabStaff()) {
p->setPen(curColor());
symbols[score()->symIdx()][_sym].draw(p, magS());
}
}
//---------------------------------------------------------
// Symbol::write
//---------------------------------------------------------
void Symbol::write(Xml& xml) const
{
xml.stag(name());
xml.tag("name", Sym::id2name(_sym));
Element::writeProperties(xml);
foreach(const Element* e, leafs())
e->write(xml);
xml.etag();
}
//---------------------------------------------------------
// Symbol::read
//---------------------------------------------------------
void Symbol::read(const QDomElement& de)
{
QPointF pos;
SymId s = noSym;
for (QDomElement e = de.firstChildElement(); !e.isNull(); e = e.nextSiblingElement()) {
const QString& tag(e.tagName());
QString val(e.text());
if (tag == "name") {
if (val == "acc dot") // compatibility hack
val = "accordion.accDot";
s = Sym::name2id(val);
if (s == noSym) {
// if symbol name not found, fall back to mnames
s = Sym::userName2id(val);
if (s == noSym) {
qDebug("unknown symbol <%s> (%d symbols), falling back to default symbol",
qPrintable(val), symbols[0].size());
// set a default symbol, or layout() will crash
s = s1miHeadSym;
}
}
}
else if (tag == "Symbol") {
Symbol* s = new Symbol(score());
s->read(e);
s->adjustReadPos();
add(s);
}
else if (tag == "Image") {
// look ahead for image type
QString path;
QDomElement ee = e.firstChildElement("path");
if (!ee.isNull())
path = ee.text();
Image* image = 0;
QString s(path.toLower());
if (s.endsWith(".svg"))
image = new SvgImage(score());
else
if (s.endsWith(".jpg")
|| s.endsWith(".png")
|| s.endsWith(".gif")
|| s.endsWith(".xpm")
) {
image = new RasterImage(score());
}
else {
qDebug("unknown image format <%s>\n", path.toLatin1().data());
}
if (image) {
image->read(e);
add(image);
}
}
else if (tag == "small" || tag == "subtype")
;
else if (!Element::readProperties(e))
domError(e);
}
if (s == noSym)
qDebug("unknown symbol");
setPos(pos);
setSym(s);
}
//---------------------------------------------------------
// dragAnchor
//---------------------------------------------------------
QLineF BSymbol::dragAnchor() const
{
if (parent() && parent()->type() == SEGMENT) {
System* system = segment()->measure()->system();
qreal y = system->staff(staffIdx())->y() + system->y();
QPointF anchor(segment()->pageX(), y);
return QLineF(canvasPos(), anchor);
}
else {
return QLineF(canvasPos(), parent()->canvasPos());
}
}
//---------------------------------------------------------
// pagePos
//---------------------------------------------------------
QPointF BSymbol::pagePos() const
{
if (parent() && (parent()->type() == SEGMENT)) {
QPointF p(pos());
System* system = segment()->measure()->system();
if (system) {
p.ry() += system->staff(staffIdx())->y() + system->y();
}
p.rx() = pageX();
return p;
}
else
return Element::pagePos();
}
//---------------------------------------------------------
// canvasPos
//---------------------------------------------------------
QPointF BSymbol::canvasPos() const
{
if (parent() && (parent()->type() == SEGMENT)) {
QPointF p(pos());
Segment* s = static_cast<Segment*>(parent());
System* system = s->measure()->system();
if (system) {
int si = staffIdx();
p.ry() += system->staff(si)->y() + system->y();
Page* page = system->page();
if (page)
p.ry() += page->y();
}
p.rx() = canvasX();
return p;
}
else
return Element::canvasPos();
}
//---------------------------------------------------------
// FSymbol
//---------------------------------------------------------
FSymbol::FSymbol(Score* s)
: Element(s)
{
_code = 0;
_font.setStyleStrategy(QFont::NoFontMerging);
}
FSymbol::FSymbol(const FSymbol& s)
: Element(s)
{
_font = s._font;
_code = s._code;
}
//---------------------------------------------------------
// draw
//---------------------------------------------------------
void FSymbol::draw(QPainter* painter) const
{
QString s;
painter->setFont(_font);
if (_code & 0xffff0000) {
s = QChar(QChar::highSurrogate(_code));
s += QChar(QChar::lowSurrogate(_code));
}
else
s = QChar(_code);
painter->drawText(QPointF(0, 0), s);
}
//---------------------------------------------------------
// write
//---------------------------------------------------------
void FSymbol::write(Xml& xml) const
{
xml.stag(name());
xml.tag("font", _font.family());
xml.tag("fontsize", _font.pixelSize());
xml.tag("code", _code);
Element::writeProperties(xml);
xml.etag();
}
//---------------------------------------------------------
// read
//---------------------------------------------------------
void FSymbol::read(const QDomElement& de)
{
for (QDomElement e = de.firstChildElement(); !e.isNull(); e = e.nextSiblingElement()) {
const QString& tag(e.tagName());
const QString& val(e.text());
if (tag == "font")
_font.setFamily(val);
else if (tag == "fontsize")
_font.setPixelSize(val.toInt());
else if (tag == "code")
_code = val.toInt();
else if (!Element::readProperties(e))
domError(e);
}
setPos(QPointF());
}
//---------------------------------------------------------
// layout
//---------------------------------------------------------
void FSymbol::layout()
{
QString s;
if (_code & 0xffff0000) {
s = QChar(QChar::highSurrogate(_code));
s += QChar(QChar::lowSurrogate(_code));
}
else
s = QChar(_code);
QFontMetricsF fm(_font);
setbbox(fm.boundingRect(s));
adjustReadPos();
}
//---------------------------------------------------------
// setFont
//---------------------------------------------------------
void FSymbol::setFont(const QFont& f)
{
_font = f;
_font.setStyleStrategy(QFont::NoFontMerging);
}