RetroShare/retroshare-gui/src/util/RsSyntaxHighlighter.cpp
2025-10-16 14:48:52 -04:00

122 lines
4 KiB
C++

/*******************************************************************************
* util/RsSyntaxHighlighter.cpp *
* *
* Copyright (c) 2014 Retroshare Team <retroshare.project@gmail.com> *
* *
* This program is free software: you can redistribute it and/or modify *
* it under the terms of the GNU Affero General Public License as *
* published by the Free Software Foundation, either version 3 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 Affero General Public License for more details. *
* *
* You should have received a copy of the GNU Affero General Public License *
* along with this program. If not, see <https://www.gnu.org/licenses/>. *
* *
*******************************************************************************/
#include <QRegularExpression>
#include "RsSyntaxHighlighter.h"
RsSyntaxHighlighter::RsSyntaxHighlighter(QTextEdit *parent)
: QSyntaxHighlighter(parent)
{
quotationFormats.append(QTextCharFormat());
}
QColor RsSyntaxHighlighter::textColorQuote () const
{
return quotationFormats.at(0).foreground().color();
}
QVariant RsSyntaxHighlighter::textColorQuotes() const
{
QList<QVariant> l;
foreach(auto i, quotationFormats)
l.append(QVariant(i.foreground().color()));
return QVariant(l);
}
void RsSyntaxHighlighter::setTextColorQuote(QColor textColorQuote)
{
quotationFormats[0].setForeground(textColorQuote);
this->rehighlight();
}
void RsSyntaxHighlighter::setTextColorQuotes(QVariant textColorQuotes)
{
QStringList parList = textColorQuotes.toStringList();
if ((parList.size() == 2) && (parList.at(0).toLower() == "colorlist"))
{
QStringList colList = parList.at(1).split(" ");
quotationFormats.clear();
for(int i = 0; i < colList.size(); i++)
{
quotationFormats.append(QTextCharFormat());
quotationFormats[i].setForeground(QColor(colList[i]));
}
}
this->rehighlight();
}
void RsSyntaxHighlighter::highlightBlock(const QString &text)
{
if (text == "") return;
QRegularExpression endl("[\\r\\n\\N{U+2028}]"); //Usually 0x2028 character is used for newline, no idea why
int index = 0;
QStringList lines = text.split(endl);
foreach (const QString &cLine, lines) {
QString line =cLine;
line.replace(QChar::Nbsp,QChar::Space);
int count = 0;
for( int i=0; i<line.length(); i++ ){
if( line[i] == '>' )
count++;
else if( line[i] != QChar::Space )
break;
}
//Make it work with the compact chat style
int start = line.indexOf(": >");
if( start != -1 )
start += 2; // Start at ">" not ":"
else
start = 0;
if(count && start > count ) {
// Found but already quotted
start = 0;
} else {
if (start && !count) {
// Start to count after name: >
for(int i=start; i<line.length(); i++){
if( line[i] == '>' )
count++;
else if( line[i] != QChar::Space )
break;
}
}
}
if(count) {
setFormat(index + start, line.length() - start, quotationFormats.at(qMin(count-1,quotationFormats.size()-1)));
}
index += line.length() + 1;
}
}
//Dumping the raw unicode string into the console in Base64 encoding
/*
QByteArray uniline;
const QChar* qca = line.unicode();
for(int i=0; qca[i]!='\0' ;++i)
{
uniline.append(qca[i].row());
uniline.append(qca[i].cell());
}
std::cout << "Line: " << uniline.toBase64().toStdString() << std::endl;
*/