mirror of
https://github.com/jkriege2/JKQtPlotter.git
synced 2024-12-26 02:21:43 +08:00
580 lines
19 KiB
C++
580 lines
19 KiB
C++
/*
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Copyright (c) 2008-2022 Jan W. Krieger (<jan@jkrieger.de>)
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This software is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License (LGPL) as published by
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the Free Software Foundation, either version 2.1 of the License, or
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(at your option) any later version.
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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 Lesser General Public License (LGPL) for more details.
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You should have received a copy of the GNU Lesser General Public License (LGPL)
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "jkqtmathtext/jkqtmathtexttools.h"
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#include "jkqtmathtext/jkqtmathtext.h"
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#include "jkqtcommon/jkqtpcodestructuring.h"
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#include "jkqtcommon/jkqtpstringtools.h"
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#include <cmath>
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#include <QFontMetricsF>
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#include <QDebug>
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#include <QFontDatabase>
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#include <QFontInfo>
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#include <QApplication>
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#include <QFont>
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void initJKQTMathTextResources()
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{
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static bool initialized=false;
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if (!initialized) {
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#ifdef JKQTMATHTEXT_COMPILED_WITH_XITS
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Q_INIT_RESOURCE(xits);
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#endif
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initialized=true;
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}
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}
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JKQTMathTextFontSpecifier::JKQTMathTextFontSpecifier():
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m_fontName(""),
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m_mathFontName("")
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{
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}
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JKQTMathTextFontSpecifier::JKQTMathTextFontSpecifier(const QString &_fontName, const QString &_mathFontName):
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m_fontName(_fontName),
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m_mathFontName(_mathFontName)
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{
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}
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JKQTMathTextFontSpecifier JKQTMathTextFontSpecifier::fromFontSpec(const QString &fontSpec)
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{
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JKQTMathTextFontSpecifier s;
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s.setFontSpec(fontSpec);
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return s;
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}
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void JKQTMathTextFontSpecifier::setFontSpec(const QString &fontSpec)
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{
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QStringList splitspec=fontSpec.split('+');
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if (splitspec.size()==0) {
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m_fontName=m_mathFontName="";
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} else if (splitspec.size()==1) {
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m_fontName=splitspec[0];
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m_mathFontName="";
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} else if (splitspec.size()==2) {
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m_fontName=splitspec[0];
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m_mathFontName=splitspec[1];
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} else if (splitspec.size()>2) {
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m_fontName=splitspec.mid(0, splitspec.size()-1).join('+');
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m_mathFontName=splitspec.last();
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}
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}
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QString JKQTMathTextFontSpecifier::getFontSpec() const
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{
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QString res=m_fontName;
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if (m_mathFontName.size()>0) res+="+"+m_mathFontName;
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return res;
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}
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QString JKQTMathTextFontSpecifier::fontName() const
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{
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return transformFontName(m_fontName);
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}
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QString JKQTMathTextFontSpecifier::mathFontName() const
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{
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return transformFontName(m_mathFontName);
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}
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QString JKQTMathTextFontSpecifier::transformFontName(const QString &fontName)
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{
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const QString fnt=fontName.trimmed().toLower();
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QFont testFnt;
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if (fnt=="serif") {
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testFnt.setStyleHint(QFont::StyleHint::Serif);
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return testFnt.defaultFamily();
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}
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if (fnt=="sans-serif" || fnt=="sansserif" || fnt=="sans" || fnt=="sans serif") {
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testFnt.setStyleHint(QFont::StyleHint::SansSerif);
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return testFnt.defaultFamily();
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}
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if (fnt=="cursive") {
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testFnt.setStyleHint(QFont::StyleHint::Cursive);
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return testFnt.defaultFamily();
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}
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if (fnt=="typewriter") {
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testFnt.setStyleHint(QFont::StyleHint::TypeWriter);
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return testFnt.defaultFamily();
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}
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if (fnt=="monospace") {
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testFnt.setStyleHint(QFont::StyleHint::Monospace);
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return testFnt.defaultFamily();
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}
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if (fnt=="fantasy") {
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testFnt.setStyleHint(QFont::StyleHint::Fantasy);
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return testFnt.defaultFamily();
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}
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if (fnt=="system") {
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testFnt.setStyleHint(QFont::StyleHint::System);
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return testFnt.defaultFamily();
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}
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if (fnt=="decorative") {
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testFnt.setStyleHint(QFont::StyleHint::Decorative);
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return testFnt.defaultFamily();
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}
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if (fnt=="default" || fnt=="app" || fnt=="application") {
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return QGuiApplication::font().family();
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}
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#if QT_VERSION >= QT_VERSION_CHECK(6,0,0)
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if (fnt=="fixed") {
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return QFontDatabase::systemFont(QFontDatabase::SystemFont::FixedFont).family();
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}
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if (fnt=="smallest_readable" || fnt=="smallestreadable" || fnt=="smallest readable" || fnt=="smallest") {
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return QFontDatabase::systemFont(QFontDatabase::SystemFont::SmallestReadableFont).family();
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}
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if (fnt=="title") {
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return QFontDatabase::systemFont(QFontDatabase::SystemFont::TitleFont).family();
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}
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if (fnt=="general") {
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return QFontDatabase::systemFont(QFontDatabase::SystemFont::GeneralFont).family();
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}
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#elif QT_VERSION >= QT_VERSION_CHECK(5,2,0)
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QFontDatabase fontDB;
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if (fnt=="fixed") {
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return fontDB.systemFont(QFontDatabase::SystemFont::FixedFont).family();
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}
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if (fnt=="smallest_readable" || fnt=="smallestreadable" || fnt=="smallest readable" || fnt=="smallest") {
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return fontDB.systemFont(QFontDatabase::SystemFont::SmallestReadableFont).family();
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}
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if (fnt=="title") {
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return fontDB.systemFont(QFontDatabase::SystemFont::TitleFont).family();
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}
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if (fnt=="general") {
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return fontDB.systemFont(QFontDatabase::SystemFont::GeneralFont).family();
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}
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#endif
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return fontName;
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}
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QString JKQTMathTextFontSpecifier::transformFontNameAndDecodeSpecialFonts(const QString &fontName)
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{
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const QString fnt=fontName.toLower().trimmed();
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if (fnt=="xits") {
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return getXITSFamilies().fontName();
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} else if (fnt=="asana") {
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return getASANAFamilies().fontName();
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} else if (fnt=="stix") {
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return getSTIXFamilies().fontName();
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}
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return transformFontName(fontName);
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}
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bool JKQTMathTextFontSpecifier::hasFontName() const
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{
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return !m_fontName.isEmpty();
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}
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bool JKQTMathTextFontSpecifier::hasMathFontName() const
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{
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return !m_mathFontName.isEmpty();
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}
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JKQTMathTextFontSpecifier JKQTMathTextFontSpecifier::getXITSFamilies()
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{
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#if (QT_VERSION<QT_VERSION_CHECK(6, 0, 0))
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QFontDatabase fdb;
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const auto fontFamilies=fdb.families();
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#else
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const auto fontFamilies=QFontDatabase::families();
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#endif
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if (!fontFamilies.contains("XITS")) {
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if (QFile::exists(":/JKQTMathText/fonts/xits-bold.otf")) { QFontDatabase::addApplicationFont(":/JKQTMathText/fonts/xits-bold.otf"); }
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if (QFile::exists(":/JKQTMathText/fonts/xits-bolditalic.otf")) { QFontDatabase::addApplicationFont(":/JKQTMathText/fonts/xits-bolditalic.otf"); }
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if (QFile::exists(":/JKQTMathText/fonts/xits-italic.otf")) { QFontDatabase::addApplicationFont(":/JKQTMathText/fonts/xits-italic.otf"); }
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if (QFile::exists(":/JKQTMathText/fonts/xits-math.otf")) { QFontDatabase::addApplicationFont(":/JKQTMathText/fonts/xits-math.otf"); }
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if (QFile::exists(":/JKQTMathText/fonts/xits-mathbold.otf")) { QFontDatabase::addApplicationFont(":/JKQTMathText/fonts/xits-mathbold.otf"); }
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if (QFile::exists(":/JKQTMathText/fonts/xits-regular.otf")) { QFontDatabase::addApplicationFont(":/JKQTMathText/fonts/xits-regular.otf"); }
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}
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static JKQTMathTextFontSpecifier fontSpec;
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if (fontSpec.m_fontName.isEmpty() && fontSpec.m_mathFontName.isEmpty()) {
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for (int i=0; i<fontFamilies.size(); i++) {
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if (fontFamilies.at(i).contains("XITS Math")) {
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fontSpec.m_mathFontName=fontFamilies.at(i);
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} else if (fontFamilies.at(i).contains("XITS")) {
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fontSpec.m_fontName=fontFamilies.at(i);
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}
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if (fontSpec.m_mathFontName.size()>0 && fontSpec.m_fontName.size()>0) {
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break;
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}
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}
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if (fontSpec.m_mathFontName.isEmpty() && !fontSpec.m_fontName.isEmpty()) {
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fontSpec.m_mathFontName=fontSpec.m_fontName;
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} else if (!fontSpec.m_mathFontName.isEmpty() && fontSpec.m_fontName.isEmpty()) {
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fontSpec.m_fontName=fontSpec.m_mathFontName;
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}
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}
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return fontSpec;
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}
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JKQTMathTextFontSpecifier JKQTMathTextFontSpecifier::getASANAFamilies()
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{
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#if (QT_VERSION<QT_VERSION_CHECK(6, 0, 0))
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QFontDatabase fdb;
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const auto fontFamilies=fdb.families();
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#else
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const auto fontFamilies=QFontDatabase::families();
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#endif
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if (!fontFamilies.contains("Asana") && !fontFamilies.contains("Asana Math")) {
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if (QFile::exists(":/JKQTMathText/fonts/asana-math.otf")) { /*i=*/QFontDatabase::addApplicationFont(":/JKQTMathText/fonts/asana-math.otf"); }
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}
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static JKQTMathTextFontSpecifier fontSpec;
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if (fontSpec.m_fontName.isEmpty() && fontSpec.m_mathFontName.isEmpty()) {
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for (int i=0; i<fontFamilies.size(); i++) {
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if (fontFamilies.at(i).contains("Asana Math")) {
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fontSpec.m_mathFontName=fontFamilies.at(i);
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} else if (fontFamilies.at(i).contains("Asana")) {
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fontSpec.m_fontName=fontFamilies.at(i);
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}
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if (fontSpec.m_mathFontName.size()>0 && fontSpec.m_fontName.size()>0) {
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break;
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}
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}
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if (fontSpec.m_mathFontName.isEmpty() && !fontSpec.m_fontName.isEmpty()) {
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fontSpec.m_mathFontName=fontSpec.m_fontName;
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} else if (!fontSpec.m_mathFontName.isEmpty() && fontSpec.m_fontName.isEmpty()) {
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fontSpec.m_fontName=fontSpec.m_mathFontName;
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}
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}
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return fontSpec;
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}
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JKQTMathTextFontSpecifier JKQTMathTextFontSpecifier::getSTIXFamilies()
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{
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static QStringList mathNames{"STIX Two Math", "STIX Math", "STIX Two Math Standard", "STIX Math Standard"};
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static QStringList textNames{"STIX", "STIXGeneral", "STIX General"};
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static JKQTMathTextFontSpecifier fontSpec;
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if (fontSpec.m_fontName.isEmpty() && fontSpec.m_mathFontName.isEmpty()) {
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#if (QT_VERSION<QT_VERSION_CHECK(6, 0, 0))
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QFontDatabase fdb;
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const auto fontFamilies=fdb.families();
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#else
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const auto fontFamilies=QFontDatabase::families();
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#endif
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for (const QString& name:mathNames) {
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for (int i=0; i<fontFamilies.size(); i++) {
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if (fontFamilies.at(i).contains(name) ) {
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fontSpec.m_mathFontName=fontFamilies.at(i);
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}
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if (fontSpec.m_mathFontName.size()>0) {
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break;
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}
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}
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if (fontSpec.m_mathFontName.size()>0) {
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break;
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}
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}
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for (const QString& name:textNames) {
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for (int i=0; i<fontFamilies.size(); i++) {
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if (fontFamilies.at(i).contains(name) ) {
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fontSpec.m_fontName=fontFamilies.at(i);
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}
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if (fontSpec.m_fontName.size()>0) {
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break;
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}
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}
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if (fontSpec.m_fontName.size()>0) {
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break;
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}
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}
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if (fontSpec.m_mathFontName.isEmpty() && !fontSpec.m_fontName.isEmpty()) {
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fontSpec.m_mathFontName=fontSpec.m_fontName;
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} else if (!fontSpec.m_mathFontName.isEmpty() && fontSpec.m_fontName.isEmpty()) {
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fontSpec.m_fontName=fontSpec.m_mathFontName;
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}
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}
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return fontSpec;
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}
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QString JKQTMathTextFontEncoding2String(JKQTMathTextFontEncoding e)
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{
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switch(e) {
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case MTFEunicode: return "MTFEunicode";
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case MTFEStandard: return "MTFEStandard";
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case MTFEunicodeLimited: return "MTFEunicodeLimited";
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case MTFEwinSymbol: return "MTFEwinSymbol";
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}
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return "???";
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}
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JKQTMathTextEnvironment::JKQTMathTextEnvironment() {
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color=QColor("black");
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font=MTEroman;
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fontSize=10;
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bold=false;
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italic=false;
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smallCaps=false;
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underlined=false;
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overline=false;
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strike=false;
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insideMath=false;
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}
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QFont JKQTMathTextEnvironment::getFont(JKQTMathText* parent) const {
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QFont f;
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switch (font) {
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case MTEsans: if (insideMath) {
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f.setFamily(parent->getFontMathSans());
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} else {
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f.setFamily(parent->getFontSans());
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}
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break;
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case MTEmathSans: f.setFamily(parent->getFontMathSans()); break;
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case MTEtypewriter: f.setFamily(parent->getFontTypewriter()); break;
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case MTEscript: f.setFamily(parent->getFontScript()); break;
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case MTEcaligraphic: f.setFamily(parent->getFontCaligraphic()); break;
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case MTEblackboard: f.setFamily(parent->getFontBlackboard()); break;
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case MTEfraktur: f.setFamily(parent->getFontFraktur()); break;
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case MTEmathRoman: f.setFamily(parent->getFontMathRoman()); break;
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default:
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case MTEroman: if (insideMath) {
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f.setFamily(parent->getFontMathRoman());
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} else {
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f.setFamily(parent->getFontRoman());
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}
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break;
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}
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f.setBold(bold);
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f.setItalic(italic);
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f.setUnderline(underlined);
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f.setOverline(overline);
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f.setStrikeOut(strike);
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f.setCapitalization(QFont::MixedCase);
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if (smallCaps) f.setCapitalization(QFont::SmallCaps);
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f.setPointSizeF(fontSize);
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f.setStyleStrategy(QFont::NoFontMerging);
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return f;
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}
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QString JKQTMathTextEnvironment::toHtmlStart(JKQTMathTextEnvironment defaultEv) const {
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QString s;
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s=s+"font-size: "+QLocale::c().toString(fontSize)+"pt; ";
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if (insideMath) {
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if (defaultEv.italic) {
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if (!italic) s=s+"font-style: italic; ";
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if (italic) s=s+"font-style: normal; ";
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} else {
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if (!italic) s=s+"font-style: italic; ";
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}
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} else {
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if (!defaultEv.italic && italic) s=s+"font-style: italic; ";
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}
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if (bold && !defaultEv.bold) s=s+"font-weight: bold";
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QStringList td;
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if (underlined && !defaultEv.underlined) td<<"underline";
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if (overline && !defaultEv.overline) td<<"overline";
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if (strike && !defaultEv.strike) td<<"line-through";
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if (td.size()>0) s=s+"text-decoration: "+td.join(", ");
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return "<span style=\""+s+"\">";
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}
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QString JKQTMathTextEnvironment::toHtmlAfter(JKQTMathTextEnvironment /*defaultEv*/) const {
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return "</span>";
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}
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JKQTMathTextNodeSize::JKQTMathTextNodeSize():
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width(0),
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baselineHeight(0),
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overallHeight(0),
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strikeoutPos()
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{
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}
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JKQTMathTextFontDefinition::JKQTMathTextFontDefinition():
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fontName("Times New Roman"), fontEncoding(MTFEStandard),
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symbolfontGreek("Symbol"), symbolfontGreekEncoding(MTFEwinSymbol),
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symbolfontSymbol("Symbol"), symbolfontSymbolEncoding(MTFEwinSymbol)
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{
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}
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QPainterPath JKQTMathTextMakeDArrow(double x, double y, double width, double arrowW, bool left, bool right) {
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double x1=x;
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double x2=x+width;
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double dx=arrowW/4.0;
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double y1=y-dx;
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double y2=y+dx;
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double x3=x2-arrowW/2.0;
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double y3u=y-arrowW/2.0;
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double y3d=y+arrowW/2.0;
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double x3l=x+arrowW/2.0;
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QPainterPath path;
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path.moveTo(x1+dx, y1);
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path.lineTo(x2-dx, y1);
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path.moveTo(x1+dx, y2);
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path.lineTo(x2-dx, y2);
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if (right) {
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path.moveTo(x3, y3u);
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path.lineTo(x2, y);
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path.lineTo(x3, y3d);
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}
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if (left) {
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path.moveTo(x3l, y3u);
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path.lineTo(x1, y);
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path.lineTo(x3l, y3d);
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}
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return path;
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}
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QPainterPath JKQTMathTextMakeArrow(double x, double y, double width, double arrowW, bool left, bool right) {
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double x1=x;
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double x2=x+width;
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double x3=x2-arrowW/2.0;
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double y3u=y-arrowW/2.0;
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double y3d=y+arrowW/2.0;
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double x3l=x+arrowW/2.0;
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QPainterPath path;
|
|
path.moveTo(x1, y);
|
|
path.lineTo(x2, y);
|
|
if (right) {
|
|
path.moveTo(x3, y3u);
|
|
path.lineTo(x2, y);
|
|
path.lineTo(x3, y3d);
|
|
}
|
|
if (left) {
|
|
path.moveTo(x3l, y3u);
|
|
path.lineTo(x1, y);
|
|
path.lineTo(x3l, y3d);
|
|
}
|
|
return path;
|
|
}
|
|
|
|
QPainterPath JKQTMathTextMakeHBracePath(double x, double ybrace, double width, double bw, double cubicshrink, double cubiccontrolfac) {
|
|
double xl1=x-(width)*cubicshrink+bw*cubicshrink;
|
|
double xr2=x+(width)*cubicshrink-bw*cubicshrink;
|
|
double xl2=x-bw*cubicshrink;
|
|
double xr1=x+bw*cubicshrink;
|
|
|
|
QPainterPath path;
|
|
path.moveTo(xl1-bw*cubicshrink, ybrace-bw*cubicshrink);
|
|
path.cubicTo(xl1-bw*cubicshrink, ybrace-bw*cubicshrink+bw*cubiccontrolfac, xl1-bw*cubiccontrolfac, ybrace, xl1, ybrace);
|
|
path.lineTo(xl2, ybrace);
|
|
path.cubicTo(xl2+bw*cubiccontrolfac, ybrace, (xl2+xr1)/2.0, ybrace+bw*cubicshrink-bw*cubiccontrolfac, (xl2+xr1)/2.0, ybrace+bw*cubicshrink);
|
|
path.cubicTo((xl2+xr1)/2.0, ybrace+bw*cubicshrink-bw*cubiccontrolfac, xr1-bw*cubiccontrolfac, ybrace, xr1, ybrace);
|
|
path.lineTo(xr2, ybrace);
|
|
path.cubicTo(xr2+bw*cubiccontrolfac, ybrace, xr2+bw*cubicshrink, ybrace-bw*cubicshrink+bw*cubiccontrolfac, xr2+bw*cubicshrink, ybrace-bw*cubicshrink);
|
|
return path;
|
|
}
|
|
|
|
|
|
JKQTMathTextTBRData::JKQTMathTextTBRData(const QFont &f, const QString &text, QPaintDevice *pd):
|
|
fm(f, pd)
|
|
{
|
|
this->text=text;
|
|
this->tbr=this->fm.tightBoundingRect(text);
|
|
this->f=f;
|
|
//this->pd=pd;
|
|
if (pd) {
|
|
ldpiX=pd->logicalDpiX();
|
|
ldpiY=pd->logicalDpiY();
|
|
pdpiX=pd->physicalDpiX();
|
|
pdpiY=pd->physicalDpiY();
|
|
} else {
|
|
ldpiX=0;
|
|
ldpiY=0;
|
|
pdpiX=0;
|
|
pdpiY=0;
|
|
}
|
|
}
|
|
|
|
bool JKQTMathTextTBRData::operator==(const JKQTMathTextTBRData &other) const
|
|
{
|
|
return ldpiX==other.ldpiX && ldpiY==other.ldpiY && text==other.text && f==other.f;
|
|
}
|
|
|
|
|
|
|
|
JKQTMathTextTBRDataH::JKQTMathTextTBRDataH(const QFont &f, const QString &text, QPaintDevice *pd)
|
|
{
|
|
this->text=text;
|
|
this->f=f;
|
|
if (pd) {
|
|
ldpiX=pd->logicalDpiX();
|
|
ldpiY=pd->logicalDpiY();
|
|
pdpiX=pd->physicalDpiX();
|
|
pdpiY=pd->physicalDpiY();
|
|
} else {
|
|
ldpiX=0;
|
|
ldpiY=0;
|
|
pdpiX=0;
|
|
pdpiY=0;
|
|
}
|
|
}
|
|
|
|
bool JKQTMathTextTBRDataH::operator==(const JKQTMathTextTBRDataH &other) const
|
|
{
|
|
return ldpiX==other.ldpiX && ldpiY==other.ldpiY && text==other.text && f==other.f;
|
|
|
|
}
|
|
|
|
|
|
|
|
QRectF JKQTMathTextGetTightBoundingRect(const QFont &fm, const QString &text, QPaintDevice *pd)
|
|
{
|
|
static QList<JKQTMathTextTBRData> JKQTMathText_tbrs=QList<JKQTMathTextTBRData>();
|
|
static QHash<JKQTMathTextTBRDataH, QRectF> JKQTMathText_tbrh=QHash<JKQTMathTextTBRDataH, QRectF>();
|
|
|
|
JKQTMathTextTBRDataH dh(fm, text, pd);
|
|
if (pd) {
|
|
if (JKQTMathText_tbrh.contains(dh)) return JKQTMathText_tbrh[dh];
|
|
/*for (int i=0; i<tbrs.size(); i++) {
|
|
if (tbrs[i].f==fm && tbrs[i].text==text && (tbrs[i].ldpiX==pd->logicalDpiX() && tbrs[i].ldpiY==pd->logicalDpiY() && tbrs[i].pdpiX==pd->physicalDpiX() && tbrs[i].pdpiY==pd->physicalDpiY())) {
|
|
//qDebug()<<" ### "<<fm<<pd<<tbrs[i].text<<tbrs[i].tbr;
|
|
return tbrs[i].tbr;
|
|
}
|
|
}*/
|
|
} else {
|
|
//qDebug()<<"warning no pd";
|
|
}
|
|
JKQTMathTextTBRData d(fm, text, pd);
|
|
JKQTMathText_tbrs.append(d);
|
|
JKQTMathText_tbrh[dh]=d.tbr;
|
|
//qDebug()<<"TBRs lits: "<<tbrs.size();
|
|
//qDebug()<<"+++ "<<fm<<pd<<d.text<<d.tbr;
|
|
return d.tbr;
|
|
}
|
|
|
|
QFont JKQTMathTextGetNonItalic(const QFont &font)
|
|
{
|
|
QFont f=font;
|
|
f.setItalic(false);
|
|
return f;
|
|
}
|
|
|