Differential D5457 Diff 13922 src/lib/latexrenderer.cpp

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src/lib/latexrenderer.cpp

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21#include "latexrenderer.h" 21​#include "latexrenderer.h"
22using namespace Cantor; 22​using namespace Cantor;
23 23​
24#include <KProcess> 24​#include <KProcess>
25#include <QDebug> 25​#include <QDebug>
26#include <QFileInfo> 26​#include <QFileInfo>
27#include <QEventLoop> 27​#include <QEventLoop>
28#include <QTemporaryFile> 28​#include <QTemporaryFile>
29​#include <KColorScheme>
29 30​
30#include <config-cantorlib.h> 31​#include <config-cantorlib.h>
31#include "settings.h" 32​#include "settings.h"
32 33​
33class Cantor::LatexRendererPrivate 34​class Cantor::LatexRendererPrivate
34{ 35​{
35 public: 36​ public:
36 QString latexCode; 37​ QString latexCode;
37 QString header; 38​ QString header;
38 LatexRenderer::Method method; 39​ LatexRenderer::Method method;
39 bool isEquationOnly; 40​ bool isEquationOnly;
40 LatexRenderer::EquationType equationType; 41​ LatexRenderer::EquationType equationType;
41 QString errorMessage; 42​ QString errorMessage;
42 bool success; 43​ bool success;
43 QString latexFilename; 44​ QString latexFilename;
44}; 45​};
45 46​
46static const QLatin1String tex("\\documentclass[12pt,fleqn]{article} \n "\ 47​static const QLatin1String tex("\\documentclass[12pt,fleqn]{article} \n "\
47 "\\usepackage{latexsym,amsfonts,amssymb,ulem} \n "\ 48​ "\\usepackage{latexsym,amsfonts,amssymb,ulem} \n "\
48 "\\usepackage[dvips]{graphicx} \n "\ 49​ "\\usepackage[dvips]{graphicx} \n "\
49 "\\usepackage[utf8]{inputenc} \n "\ 50​ "\\usepackage[utf8]{inputenc} \n "\
51​ "\\usepackage{xcolor} \n "\
50 "\\setlength\\textwidth{5in} \n "\ 52​ "\\setlength\\textwidth{5in} \n "\
51 "\\setlength{\\parindent}{0pt} \n "\ 53​ "\\setlength{\\parindent}{0pt} \n "\
52 "%1 \n "\ 54​ "%1 \n "\
55​ "\\pagecolor[rgb]{%2,%3,%4} \n "\
53 "\\pagestyle{empty} \n "\ 56​ "\\pagestyle{empty} \n "\
54 "\\begin{document} \n "\ 57​ "\\begin{document} \n "\
55 "%2 \n "\ 58​ "\\color[rgb]{%5,%6,%7} \n "\
59​ "%8 \n "\
56 "\\end{document}\n"); 60​ "\\end{document}\n");
57 61​
58static const QLatin1String eqnHeader("\\begin{eqnarray*}%1\\end{eqnarray*} \n "); 62​static const QLatin1String eqnHeader("\\begin{eqnarray*}%1\\end{eqnarray*} \n ");
59static const QLatin1String inlineEqnHeader("$%1$ \n"); 63​static const QLatin1String inlineEqnHeader("$%1$ \n");
60 64​
61LatexRenderer::LatexRenderer(QObject* parent) : QObject(parent), 65​LatexRenderer::LatexRenderer(QObject* parent) : QObject(parent),
62 d(new LatexRendererPrivate) 66​ d(new LatexRendererPrivate)
63{ 67​{
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172{ 176​{
173 qDebug()<<"rendering using latex method"; 177​ qDebug()<<"rendering using latex method";
174 QString dir=QStandardPaths::writableLocation(QStandardPaths::TempLocation); 178​ QString dir=QStandardPaths::writableLocation(QStandardPaths::TempLocation);
175 179​
176 //Check if the cantor subdir exists, if not, create it 180​ //Check if the cantor subdir exists, if not, create it
177 QTemporaryFile *texFile=new QTemporaryFile(dir + QLatin1String("/cantor_tex-XXXXXX.tex")); 181​ QTemporaryFile *texFile=new QTemporaryFile(dir + QLatin1String("/cantor_tex-XXXXXX.tex"));
178 texFile->open(); 182​ texFile->open();
179 183​
184​ KColorScheme scheme(QPalette::Active);
185​ const QColor &backgroundColor=scheme.background().color();
186​ const QColor &foregroundColor=scheme.foreground().color();
180 QString expressionTex=tex; 187​ QString expressionTex=tex;
181 expressionTex=expressionTex.arg(d->header); 188​ expressionTex=expressionTex.arg(d->header)
189​ .arg(backgroundColor.redF()).arg(backgroundColor.greenF()).arg(backgroundColor.blueF())
190​ .arg(foregroundColor.redF()).arg(foregroundColor.greenF()).arg(foregroundColor.blueF());
182 if(isEquationOnly()) 191​ if(isEquationOnly())
183 { 192​ {
184 switch(equationType()) 193​ switch(equationType())
185 { 194​ {
186 case FullEquation: expressionTex=expressionTex.arg(eqnHeader); break; 195​ case FullEquation: expressionTex=expressionTex.arg(eqnHeader); break;
187 case InlineEquation: expressionTex=expressionTex.arg(inlineEqnHeader); break; 196​ case InlineEquation: expressionTex=expressionTex.arg(inlineEqnHeader); break;
188 } 197​ }
189 } 198​ }
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