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/*****************************************************************************
* $CAMITK_LICENCE_BEGIN$
*
* CamiTK - Computer Assisted Medical Intervention ToolKit
* (c) 2001-2025 Univ. Grenoble Alpes, CNRS, Grenoble INP - UGA, TIMC, 38000 Grenoble, France
*
* Visit http://camitk.imag.fr for more information
*
* This file is part of CamiTK.
*
* CamiTK is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* CamiTK 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 version 3 for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with CamiTK. If not, see <http://www.gnu.org/licenses/>.
*
* $CAMITK_LICENCE_END$
****************************************************************************/
#include "SyntaxHighlighter.h"
using namespace camitk;
// -------------------- Constructor --------------------
SyntaxHighlighter::SyntaxHighlighter(QTextDocument* parent) : QSyntaxHighlighter(parent) {
monospaceFont.setFamily("Monospace");
monospaceFont.setStyleHint(QFont::TypeWriter);
monospaceFont.setFixedPitch(true);
}
// -------------------- addRule --------------------
void SyntaxHighlighter::addRule(QString regexp, QColor color, int weight, bool italic, QColor backgroundColor) {
if (!rules.contains(regexp)) {
QTextCharFormat format;
format.setFont(monospaceFont); // force monospace
format.setForeground(color);
format.setFontWeight(weight);
format.setFontItalic(italic);
if (backgroundColor != Qt::transparent) {
format.setBackground(backgroundColor);
}
rules.insert(regexp, QRegularExpression(regexp));
formatters.insert(regexp, format);
}
}
// -------------------- removeRule --------------------
bool SyntaxHighlighter::removeRule(QString regexp) {
if (rules.remove(regexp) > 0) {
return (formatters.remove(regexp) > 0);
}
else {
return false;
}
}
// -------------------- highlightBlock --------------------
void SyntaxHighlighter::highlightBlock(const QString& text) {
//-- go through each rules
for (auto rule : rules.keys()) {
highlightPattern(text, rule);
}
}
// -------------------- highlightPattern --------------------
void SyntaxHighlighter::highlightPattern(const QString& text, const QString& pattern) {
QRegularExpressionMatchIterator matchIterator = rules.value(pattern).globalMatch(text);
// QTextFormat format = ;
while (matchIterator.hasNext()) {
QRegularExpressionMatch match = matchIterator.next();
setFormat(match.capturedStart(), match.capturedLength(), formatters.value(pattern));
}
}
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