208 lines
8.1 KiB
C++
208 lines
8.1 KiB
C++
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//=============================================================================
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// MusE Score
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// Linux Music Score Editor
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//
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// Copyright (C) 2014 Werner Schweer and others
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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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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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//=============================================================================
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/**
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MusicXML font handling support.
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*/
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#include "libmscore/xml.h"
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#include "musicxmlfonthandler.h"
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namespace Ms {
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//---------------------------------------------------------
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// charFormat2QString
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// convert charFormat to QString for debug print
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//---------------------------------------------------------
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static QString charFormat2QString(const CharFormat& f)
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{
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return QString("b %1 i %2 u %3 va %4 fs %5 fam %6")
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.arg(f.bold())
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.arg(f.italic())
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.arg(f.underline())
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.arg(static_cast<int>(f.valign()))
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.arg(f.fontSize())
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.arg(f.fontFamily())
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;
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}
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//---------------------------------------------------------
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// MScoreTextToMXML
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// Convert rich text as generated by Text::text()
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// into MusicXML text with formatting
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// deffs: default font size for this type of text (as specified in word-font or lyric-font)
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// curfs: current font according to the style
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// if curfs != deffs, an initial font-size attribute is emitted
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//---------------------------------------------------------
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MScoreTextToMXML::MScoreTextToMXML(const QString& tag, const QString& attr, const QString& t, const int deffs, const int curfs)
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: attribs(attr), tagname(tag)
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{
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//qDebug("MScoreTextToMXML('%s')", qPrintable(t));
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// font size update iff fs != 0
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oldFormat.setFontSize(deffs);
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newFormat.setFontSize(curfs);
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// convert text into valid xml by adding dummy start and end tags
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text = "<dummy>" + t + "</dummy>";
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}
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//---------------------------------------------------------
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// MScoreTextToMXML
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// write to xml
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//---------------------------------------------------------
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void MScoreTextToMXML::write(Xml& xml)
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{
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//qDebug("MScoreTextToMXML::write()");
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QXmlStreamReader r(text);
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bool firstTime = true; // write additional attributes only the first time characters are written
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while (!r.atEnd()) {
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// do processing
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r.readNext();
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if(r.isCharacters()) {
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//qDebug("old %s", qPrintable(charFormat2QString(oldFormat)));
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//qDebug("new %s", qPrintable(charFormat2QString(newFormat)));
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QString formatAttr = updateFormat();
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//qDebug("old %s", qPrintable(charFormat2QString(oldFormat)));
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//qDebug("new %s", qPrintable(charFormat2QString(newFormat)));
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//qDebug("Characters '%s'", qPrintable(r.text().toString()));
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xml.tag(tagname + (firstTime ? attribs : "") + formatAttr, r.text().toString());
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firstTime = false;
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}
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else if(r.isEndElement()) {
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//qDebug("EndElem '%s'", qPrintable(r.name().toString()));
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handleEndElement(r);
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}
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else if(r.isStartElement()) {
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/*
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qDebug("StartElem '%s'", qPrintable(r.name().toString()));
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if (r.name() == "font")
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qDebug(" face='%s' size='%s'",
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qPrintable(r.attributes().value("face").toString()),
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qPrintable(r.attributes().value("size").toString()));
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*/
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handleStartElement(r);
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}
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}
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if (r.hasError()) {
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// do error handling
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qDebug("Error %s", qPrintable(r.errorString()));
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}
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}
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//---------------------------------------------------------
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// MScoreTextToMXML
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// update newFormat for start element
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//---------------------------------------------------------
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void MScoreTextToMXML::handleStartElement(QXmlStreamReader& r)
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{
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if (r.name() == "b")
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newFormat.setBold(true);
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else if (r.name() == "i")
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newFormat.setItalic(true);
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else if (r.name() == "u")
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newFormat.setUnderline(true);
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else if (r.name() == "font" && r.attributes().hasAttribute("size"))
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newFormat.setFontSize(r.attributes().value("size").toFloat());
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else if (r.name() == "font" && r.attributes().hasAttribute("face"))
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newFormat.setFontFamily(r.attributes().value("face").toString());
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else if (r.name() == "sub")
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; // ignore (not supported in MusicXML)
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else if (r.name() == "sup")
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; // ignore (not supported in MusicXML)
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else if (r.name() == "sym")
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// ignore (TODO ?)
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r.skipCurrentElement();
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else if (r.name() == "dummy")
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; // ignore
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else {
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qDebug("handleStartElem '%s' unknown", qPrintable(r.name().toString()));
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r.skipCurrentElement();
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}
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}
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//---------------------------------------------------------
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// MScoreTextToMXML
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// update newFormat for end element
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//---------------------------------------------------------
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void MScoreTextToMXML::handleEndElement(QXmlStreamReader& r)
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{
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if (r.name() == "b")
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newFormat.setBold(false);
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else if (r.name() == "i")
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newFormat.setItalic(false);
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else if (r.name() == "u")
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newFormat.setUnderline(false);
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else if (r.name() == "font")
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; // ignore
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else if (r.name() == "sub")
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; // ignore (not supported in MusicXML)
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else if (r.name() == "sup")
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; // ignore (not supported in MusicXML)
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else if (r.name() == "sym")
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; // ignore (TODO ?)
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else if (r.name() == "dummy")
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; // ignore
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else {
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qDebug("handleEndElem '%s' unknown", qPrintable(r.name().toString()));
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r.skipCurrentElement();
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}
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}
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//---------------------------------------------------------
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// attribute
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// add one attribute if necessary
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//---------------------------------------------------------
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static QString attribute(bool needed, bool value, QString trueString, QString falseString)
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{
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QString res;
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if (needed)
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res = value ? trueString : falseString;
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if (res != "")
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res = " " + res;
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return res;
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}
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//---------------------------------------------------------
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// updateFormat
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// update the text format by generating attributes
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// corresponding to the difference between old- and newFormat
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// copy newFormat to oldFormat
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//---------------------------------------------------------
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QString MScoreTextToMXML::updateFormat()
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{
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QString res;
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res += attribute(newFormat.bold() != oldFormat.bold(), newFormat.bold(), "font-weight=\"bold\"", "font-weight=\"normal\"");
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res += attribute(newFormat.italic() != oldFormat.italic(), newFormat.italic(), "font-style=\"italic\"", "font-style=\"normal\"");
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res += attribute(newFormat.underline() != oldFormat.underline(), newFormat.underline(), "underline=\"1\"", "underline=\"0\"");
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res += attribute(newFormat.fontFamily() != oldFormat.fontFamily(), true, QString("font-family=\"%1\"").arg(newFormat.fontFamily()), "");
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bool needSize = newFormat.fontSize() < 0.99 * oldFormat.fontSize() || newFormat.fontSize() > 1.01 * oldFormat.fontSize();
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res += attribute(needSize, true, QString("font-size=\"%1\"").arg(newFormat.fontSize()), "");
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//qDebug("updateFormat() res '%s'", qPrintable(res));
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oldFormat = newFormat;
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return res;
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}
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} // namespace Ms
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