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JKQtPlotter/lib/jkqtmathtext/jkqtmathtexttools.cpp

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/*
Copyright (c) 2008-2022 Jan W. Krieger (<jan@jkrieger.de>)
This software is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License (LGPL) as published by
the Free Software Foundation, either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License (LGPL) for more details.
You should have received a copy of the GNU Lesser General Public License (LGPL)
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "jkqtmathtext/jkqtmathtexttools.h"
#include "jkqtmathtext/jkqtmathtext.h"
#include "jkqtcommon/jkqtpcodestructuring.h"
#include "jkqtcommon/jkqtpstringtools.h"
#include <cmath>
#include <QFontMetricsF>
#include <QDebug>
#include <QFontDatabase>
#include <QFontInfo>
#include <QApplication>
#include <QFont>
void initJKQTMathTextResources()
{
static bool initialized=false;
if (!initialized) {
#ifdef JKQTMATHTEXT_COMPILED_WITH_XITS
Q_INIT_RESOURCE(xits);
#endif
initialized=true;
}
}
JKQTMathTextFontSpecifier::JKQTMathTextFontSpecifier():
m_fontName(""),
m_mathFontName("")
{
}
JKQTMathTextFontSpecifier::JKQTMathTextFontSpecifier(const QString &_fontName, const QString &_mathFontName):
m_fontName(_fontName),
m_mathFontName(_mathFontName)
{
}
JKQTMathTextFontSpecifier JKQTMathTextFontSpecifier::fromFontSpec(const QString &fontSpec)
{
JKQTMathTextFontSpecifier s;
s.setFontSpec(fontSpec);
return s;
}
void JKQTMathTextFontSpecifier::setFontSpec(const QString &fontSpec)
{
QStringList splitspec=fontSpec.split('+');
if (splitspec.size()==0) {
m_fontName=m_mathFontName="";
} else if (splitspec.size()==1) {
m_fontName=splitspec[0];
m_mathFontName="";
} else if (splitspec.size()==2) {
m_fontName=splitspec[0];
m_mathFontName=splitspec[1];
} else if (splitspec.size()>2) {
m_fontName=splitspec.mid(0, splitspec.size()-1).join('+');
m_mathFontName=splitspec.last();
}
}
QString JKQTMathTextFontSpecifier::getFontSpec() const
{
QString res=m_fontName;
if (m_mathFontName.size()>0) res+="+"+m_mathFontName;
return res;
}
QString JKQTMathTextFontSpecifier::fontName() const
{
return transformFontName(m_fontName);
}
QString JKQTMathTextFontSpecifier::mathFontName() const
{
return transformFontName(m_mathFontName);
}
QString JKQTMathTextFontSpecifier::transformFontName(const QString &fontName)
{
const QString fnt=fontName.trimmed().toLower();
QFont testFnt;
if (fnt=="serif") {
testFnt.setStyleHint(QFont::StyleHint::Serif);
return testFnt.defaultFamily();
}
if (fnt=="sans-serif" || fnt=="sansserif" || fnt=="sans" || fnt=="sans serif") {
testFnt.setStyleHint(QFont::StyleHint::SansSerif);
return testFnt.defaultFamily();
}
if (fnt=="cursive") {
testFnt.setStyleHint(QFont::StyleHint::Cursive);
return testFnt.defaultFamily();
}
if (fnt=="typewriter") {
testFnt.setStyleHint(QFont::StyleHint::TypeWriter);
return testFnt.defaultFamily();
}
if (fnt=="monospace") {
testFnt.setStyleHint(QFont::StyleHint::Monospace);
return testFnt.defaultFamily();
}
if (fnt=="fantasy") {
testFnt.setStyleHint(QFont::StyleHint::Fantasy);
return testFnt.defaultFamily();
}
if (fnt=="system") {
testFnt.setStyleHint(QFont::StyleHint::System);
return testFnt.defaultFamily();
}
if (fnt=="decorative") {
testFnt.setStyleHint(QFont::StyleHint::Decorative);
return testFnt.defaultFamily();
}
if (fnt=="default" || fnt=="app" || fnt=="application") {
return QGuiApplication::font().family();
}
#if QT_VERSION >= QT_VERSION_CHECK(6,0,0)
if (fnt=="fixed") {
return QFontDatabase::systemFont(QFontDatabase::SystemFont::FixedFont).family();
}
if (fnt=="smallest_readable" || fnt=="smallestreadable" || fnt=="smallest readable" || fnt=="smallest") {
return QFontDatabase::systemFont(QFontDatabase::SystemFont::SmallestReadableFont).family();
}
if (fnt=="title") {
return QFontDatabase::systemFont(QFontDatabase::SystemFont::TitleFont).family();
}
if (fnt=="general") {
return QFontDatabase::systemFont(QFontDatabase::SystemFont::GeneralFont).family();
}
#elif QT_VERSION >= QT_VERSION_CHECK(5,2,0)
QFontDatabase fontDB;
if (fnt=="fixed") {
return fontDB.systemFont(QFontDatabase::SystemFont::FixedFont).family();
}
if (fnt=="smallest_readable" || fnt=="smallestreadable" || fnt=="smallest readable" || fnt=="smallest") {
return fontDB.systemFont(QFontDatabase::SystemFont::SmallestReadableFont).family();
}
if (fnt=="title") {
return fontDB.systemFont(QFontDatabase::SystemFont::TitleFont).family();
}
if (fnt=="general") {
return fontDB.systemFont(QFontDatabase::SystemFont::GeneralFont).family();
}
#endif
return fontName;
}
QString JKQTMathTextFontSpecifier::transformFontNameAndDecodeSpecialFonts(const QString &fontName)
{
const QString fnt=fontName.toLower().trimmed();
if (fnt=="xits") {
return getXITSFamilies().fontName();
} else if (fnt=="asana") {
return getASANAFamilies().fontName();
} else if (fnt=="stix") {
return getSTIXFamilies().fontName();
}
return transformFontName(fontName);
}
bool JKQTMathTextFontSpecifier::hasFontName() const
{
return !m_fontName.isEmpty();
}
bool JKQTMathTextFontSpecifier::hasMathFontName() const
{
return !m_mathFontName.isEmpty();
}
JKQTMathTextFontSpecifier JKQTMathTextFontSpecifier::getXITSFamilies()
{
#if (QT_VERSION<QT_VERSION_CHECK(6, 0, 0))
QFontDatabase fdb;
const auto fontFamilies=fdb.families();
#else
const auto fontFamilies=QFontDatabase::families();
#endif
if (!fontFamilies.contains("XITS")) {
if (QFile::exists(":/JKQTMathText/fonts/xits-bold.otf")) { QFontDatabase::addApplicationFont(":/JKQTMathText/fonts/xits-bold.otf"); }
if (QFile::exists(":/JKQTMathText/fonts/xits-bolditalic.otf")) { QFontDatabase::addApplicationFont(":/JKQTMathText/fonts/xits-bolditalic.otf"); }
if (QFile::exists(":/JKQTMathText/fonts/xits-italic.otf")) { QFontDatabase::addApplicationFont(":/JKQTMathText/fonts/xits-italic.otf"); }
if (QFile::exists(":/JKQTMathText/fonts/xits-math.otf")) { QFontDatabase::addApplicationFont(":/JKQTMathText/fonts/xits-math.otf"); }
if (QFile::exists(":/JKQTMathText/fonts/xits-mathbold.otf")) { QFontDatabase::addApplicationFont(":/JKQTMathText/fonts/xits-mathbold.otf"); }
if (QFile::exists(":/JKQTMathText/fonts/xits-regular.otf")) { QFontDatabase::addApplicationFont(":/JKQTMathText/fonts/xits-regular.otf"); }
}
static JKQTMathTextFontSpecifier fontSpec;
if (fontSpec.m_fontName.isEmpty() && fontSpec.m_mathFontName.isEmpty()) {
for (int i=0; i<fontFamilies.size(); i++) {
if (fontFamilies.at(i).contains("XITS Math")) {
fontSpec.m_mathFontName=fontFamilies.at(i);
} else if (fontFamilies.at(i).contains("XITS")) {
fontSpec.m_fontName=fontFamilies.at(i);
}
if (fontSpec.m_mathFontName.size()>0 && fontSpec.m_fontName.size()>0) {
break;
}
}
if (fontSpec.m_mathFontName.isEmpty() && !fontSpec.m_fontName.isEmpty()) {
fontSpec.m_mathFontName=fontSpec.m_fontName;
} else if (!fontSpec.m_mathFontName.isEmpty() && fontSpec.m_fontName.isEmpty()) {
fontSpec.m_fontName=fontSpec.m_mathFontName;
}
}
return fontSpec;
}
JKQTMathTextFontSpecifier JKQTMathTextFontSpecifier::getASANAFamilies()
{
#if (QT_VERSION<QT_VERSION_CHECK(6, 0, 0))
QFontDatabase fdb;
const auto fontFamilies=fdb.families();
#else
const auto fontFamilies=QFontDatabase::families();
#endif
if (!fontFamilies.contains("Asana") && !fontFamilies.contains("Asana Math")) {
if (QFile::exists(":/JKQTMathText/fonts/asana-math.otf")) { /*i=*/QFontDatabase::addApplicationFont(":/JKQTMathText/fonts/asana-math.otf"); }
}
static JKQTMathTextFontSpecifier fontSpec;
if (fontSpec.m_fontName.isEmpty() && fontSpec.m_mathFontName.isEmpty()) {
for (int i=0; i<fontFamilies.size(); i++) {
if (fontFamilies.at(i).contains("Asana Math")) {
fontSpec.m_mathFontName=fontFamilies.at(i);
} else if (fontFamilies.at(i).contains("Asana")) {
fontSpec.m_fontName=fontFamilies.at(i);
}
if (fontSpec.m_mathFontName.size()>0 && fontSpec.m_fontName.size()>0) {
break;
}
}
if (fontSpec.m_mathFontName.isEmpty() && !fontSpec.m_fontName.isEmpty()) {
fontSpec.m_mathFontName=fontSpec.m_fontName;
} else if (!fontSpec.m_mathFontName.isEmpty() && fontSpec.m_fontName.isEmpty()) {
fontSpec.m_fontName=fontSpec.m_mathFontName;
}
}
return fontSpec;
}
JKQTMathTextFontSpecifier JKQTMathTextFontSpecifier::getSTIXFamilies()
{
static QStringList mathNames{"STIX Two Math", "STIX Math", "STIX Two Math Standard", "STIX Math Standard"};
static QStringList textNames{"STIX", "STIXGeneral", "STIX General"};
static JKQTMathTextFontSpecifier fontSpec;
if (fontSpec.m_fontName.isEmpty() && fontSpec.m_mathFontName.isEmpty()) {
#if (QT_VERSION<QT_VERSION_CHECK(6, 0, 0))
QFontDatabase fdb;
const auto fontFamilies=fdb.families();
#else
const auto fontFamilies=QFontDatabase::families();
#endif
for (const QString& name:mathNames) {
for (int i=0; i<fontFamilies.size(); i++) {
if (fontFamilies.at(i).contains(name) ) {
fontSpec.m_mathFontName=fontFamilies.at(i);
}
if (fontSpec.m_mathFontName.size()>0) {
break;
}
}
if (fontSpec.m_mathFontName.size()>0) {
break;
}
}
for (const QString& name:textNames) {
for (int i=0; i<fontFamilies.size(); i++) {
if (fontFamilies.at(i).contains(name) ) {
fontSpec.m_fontName=fontFamilies.at(i);
}
if (fontSpec.m_fontName.size()>0) {
break;
}
}
if (fontSpec.m_fontName.size()>0) {
break;
}
}
if (fontSpec.m_mathFontName.isEmpty() && !fontSpec.m_fontName.isEmpty()) {
fontSpec.m_mathFontName=fontSpec.m_fontName;
} else if (!fontSpec.m_mathFontName.isEmpty() && fontSpec.m_fontName.isEmpty()) {
fontSpec.m_fontName=fontSpec.m_mathFontName;
}
}
return fontSpec;
}
QString JKQTMathTextFontEncoding2String(JKQTMathTextFontEncoding e)
{
switch(e) {
case MTFEunicode: return "MTFEunicode";
case MTFEStandard: return "MTFEStandard";
case MTFEunicodeLimited: return "MTFEunicodeLimited";
case MTFEwinSymbol: return "MTFEwinSymbol";
}
return "???";
}
QString JKQTMathTextBraceType2String(JKQTMathTextBraceType type) {
switch(type) {
case MTBTAngleBracket:
return "angle_bracket";
case MTBTSquareBracket:
return "square_bracket";
case MTBTCeilBracket:
return "ceil_bracket";
case MTBTCurlyBracket:
return "curly_bracket";
case MTBTDoubleLine:
return "double_line";
case MTBTFloorBracket:
return "floor_bracket";
case MTBTParenthesis:
return "parenhesis";
case MTBTSingleLine:
return "single_line";
case MTBTTopCorner:
return "top_corner";
case MTBTBottomCorner:
return "bottom_corner";
case MTBTAny:
return "any";
case MTBTNone:
return "none";
}
return "unknown";
}
JKQTMathTextBraceType TokenName2JKQTMathTextBraceType(const QString &tokenName)
{
if (tokenName=="(" || tokenName==")") return MTBTParenthesis;
if (tokenName=="[" || tokenName=="]") return MTBTSquareBracket;
if (tokenName=="{" || tokenName=="}") return MTBTCurlyBracket;
if (tokenName=="|") return MTBTSingleLine;
if (tokenName=="||" || tokenName=="#") return MTBTDoubleLine;
if (tokenName=="<" || tokenName==">" || tokenName=="langle" || tokenName=="rangle") return MTBTAngleBracket;
if (tokenName=="_" || tokenName=="lfloor" || tokenName=="rfloor") return MTBTFloorBracket;
if (tokenName=="~" || tokenName=="lceil" || tokenName=="rceil") return MTBTCeilBracket;
if (tokenName=="ulcorner" || tokenName=="urcorner"||tokenName=="tlcorner" || tokenName=="trcorner") return MTBTTopCorner;
if (tokenName=="blcorner" || tokenName=="brcorner"||tokenName=="llcorner" || tokenName=="lrcorner") return MTBTBottomCorner;
if (tokenName=="any") return MTBTAny;
if (tokenName=="." || tokenName=="" || tokenName=="none") return MTBTNone;
return MTBTUnknown;
}
JKQTMathTextBraceType InstructionName2OpeningJKQTMathTextBraceType(const QString &tokenName)
{
if (tokenName=="{") return MTBTCurlyBracket;
if (tokenName=="|") return MTBTDoubleLine;
if (tokenName=="langle") return MTBTAngleBracket;
if (tokenName=="lfloor") return MTBTFloorBracket;
if (tokenName=="lceil") return MTBTCeilBracket;
if (tokenName=="tlcorner"||tokenName=="ulcorner") return MTBTTopCorner;
if (tokenName=="blcorner"||tokenName=="llcorner") return MTBTBottomCorner;
return MTBTUnknown;
}
JKQTMathTextBraceType InstructionName2JKQTMathTextBraceType(const QString &tokenName)
{
if (tokenName=="{" || tokenName=="}") return MTBTCurlyBracket;
if (tokenName=="|") return MTBTDoubleLine;
if (tokenName=="langle" || tokenName=="rangle") return MTBTAngleBracket;
if (tokenName=="lfloor" || tokenName=="rfloor") return MTBTFloorBracket;
if (tokenName=="lceil" || tokenName=="rceil") return MTBTCeilBracket;
if (tokenName=="ulcorner" || tokenName=="urcorner"||tokenName=="tlcorner" || tokenName=="trcorner") return MTBTTopCorner;
if (tokenName=="blcorner" || tokenName=="brcorner"||tokenName=="llcorner" || tokenName=="lrcorner") return MTBTBottomCorner;
return MTBTUnknown;
}
bool TokenNameMatchesJKQTMathTextBraceType(const QString &token, JKQTMathTextBraceType type, bool acceptMTBTNone, bool* tokenEqualsNone)
{
const JKQTMathTextBraceType bt=TokenName2JKQTMathTextBraceType(token);
if (tokenEqualsNone) *tokenEqualsNone=(bt==MTBTNone);
if (type==MTBTAny) return true;
if (acceptMTBTNone && bt==MTBTNone) return true;
return (bt==type);
}
bool InstructionNameMatchesJKQTMathTextBraceType(const QString &token, JKQTMathTextBraceType type, bool acceptMTBTNone, bool* tokenEqualsNone)
{
const JKQTMathTextBraceType bt=InstructionName2JKQTMathTextBraceType(token);
if (tokenEqualsNone) *tokenEqualsNone=(bt==MTBTNone);
if (type==MTBTAny) return true;
if (acceptMTBTNone && bt==MTBTNone) return true;
return (bt==type);
}
JKQTMathTextEnvironment::JKQTMathTextEnvironment() {
color=QColor("black");
font=MTEroman;
fontSize=10;
bold=false;
italic=false;
smallCaps=false;
underlined=false;
overline=false;
strike=false;
insideMath=false;
}
QFont JKQTMathTextEnvironment::getFont(JKQTMathText* parent) const {
QFont f;
switch (font) {
case MTEsans: if (insideMath) {
f.setFamily(parent->getFontMathSans());
} else {
f.setFamily(parent->getFontSans());
}
break;
case MTEmathSans: f.setFamily(parent->getFontMathSans()); break;
case MTEtypewriter: f.setFamily(parent->getFontTypewriter()); break;
case MTEscript: f.setFamily(parent->getFontScript()); break;
case MTEcaligraphic: f.setFamily(parent->getFontCaligraphic()); break;
case MTEblackboard: f.setFamily(parent->getFontBlackboard()); break;
case MTEfraktur: f.setFamily(parent->getFontFraktur()); break;
case MTEmathRoman: f.setFamily(parent->getFontMathRoman()); break;
default:
case MTEroman: if (insideMath) {
f.setFamily(parent->getFontMathRoman());
} else {
f.setFamily(parent->getFontRoman());
}
break;
}
f.setBold(bold);
f.setItalic(italic);
f.setUnderline(underlined);
f.setOverline(overline);
f.setStrikeOut(strike);
f.setCapitalization(QFont::MixedCase);
if (smallCaps) f.setCapitalization(QFont::SmallCaps);
f.setPointSizeF(fontSize);
f.setStyleStrategy(QFont::NoFontMerging);
return f;
}
QString JKQTMathTextEnvironment::toHtmlStart(JKQTMathTextEnvironment defaultEv) const {
QString s;
s=s+"font-size: "+QLocale::c().toString(fontSize)+"pt; ";
if (insideMath) {
if (defaultEv.italic) {
if (!italic) s=s+"font-style: italic; ";
if (italic) s=s+"font-style: normal; ";
} else {
if (!italic) s=s+"font-style: italic; ";
}
} else {
if (!defaultEv.italic && italic) s=s+"font-style: italic; ";
}
if (bold && !defaultEv.bold) s=s+"font-weight: bold";
QStringList td;
if (underlined && !defaultEv.underlined) td<<"underline";
if (overline && !defaultEv.overline) td<<"overline";
if (strike && !defaultEv.strike) td<<"line-through";
if (td.size()>0) s=s+"text-decoration: "+td.join(", ");
return "<span style=\""+s+"\">";
}
QString JKQTMathTextEnvironment::toHtmlAfter(JKQTMathTextEnvironment /*defaultEv*/) const {
return "</span>";
}
JKQTMathTextNodeSize::JKQTMathTextNodeSize():
width(0),
baselineHeight(0),
overallHeight(0),
strikeoutPos()
{
}
JKQTMathTextFontDefinition::JKQTMathTextFontDefinition():
fontName("Times New Roman"), fontEncoding(MTFEStandard),
symbolfontGreek("Symbol"), symbolfontGreekEncoding(MTFEwinSymbol),
symbolfontSymbol("Symbol"), symbolfontSymbolEncoding(MTFEwinSymbol)
{
}
QPainterPath JKQTMathTextMakeDArrow(double x, double y, double width, double arrowW, bool left, bool right) {
double x1=x;
double x2=x+width;
double dx=arrowW/4.0;
double y1=y-dx;
double y2=y+dx;
double x3=x2-arrowW/2.0;
double y3u=y-arrowW/2.0;
double y3d=y+arrowW/2.0;
double x3l=x+arrowW/2.0;
QPainterPath path;
path.moveTo(x1+dx, y1);
path.lineTo(x2-dx, y1);
path.moveTo(x1+dx, y2);
path.lineTo(x2-dx, y2);
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 JKQTMathTextMakeArrow(double x, double y, double width, double arrowW, bool left, bool right) {
double x1=x;
double x2=x+width;
double x3=x2-arrowW/2.0;
double y3u=y-arrowW/2.0;
double y3d=y+arrowW/2.0;
double x3l=x+arrowW/2.0;
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;
}
bool isPrintableJKQTMathTextBraceType(JKQTMathTextBraceType type)
{
return (type!=MTBTAny) && (type!=MTBTUnknown);
}
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