VuoNodeClassListItemHighlighter.cc

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#include "VuoNodeClassListItemHighlighter.hh"
 
const QRegExp VuoNodeClassListItemHighlighter::nodeNameTokenDelimiter = QRegExp("\\s+");
const QRegExp VuoNodeClassListItemHighlighter::nodeClassNameTokenDelimiter = QRegExp("\\.");
 
VuoNodeClassListItemHighlighter::VuoNodeClassListItemHighlighter(QObject *parent) :
    QSyntaxHighlighter(parent)
{
    nodeClassNameStartIndex = 0;
}
 
void VuoNodeClassListItemHighlighter::highlightBlock(const QString &text)
{
    QTextCharFormat highlightedTextFormat;
    highlightedTextFormat.setFontWeight(QFont::Bold);
 
    for (vector<QString>::iterator term = targetTerms.begin(); term != targetTerms.end(); ++term)
    {
        int length = (*term).length();
        QStringMatcher textFilterPattern((*term), Qt::CaseInsensitive);
        int index = textFilterPattern.indexIn(text);
 
        while (index >= 0)
        {
            // Only highlight matches that begin at token boundaries within the displayed node name.
            QRegExp currentDelimiter = (index < nodeClassNameStartIndex? nodeNameTokenDelimiter:nodeClassNameTokenDelimiter);
            if ((index == 0) ||
                (index == nodeClassNameStartIndex) ||
                (currentDelimiter.exactMatch(text.at(index-1))) ||
                ((index > nodeClassNameStartIndex) &&
                    // Transitions from lowercase to uppercase within the class name may be considered token boundaries.
                    (QRegExp("([a-z0-9])").exactMatch(text.at(index-1)) && QRegExp("([A-Z])").exactMatch(text.at(index)))))
                setFormat(index, length, highlightedTextFormat);
 
            index = textFilterPattern.indexIn(text, index + length);
         }
    }
}
 
void VuoNodeClassListItemHighlighter::addTargetTerm(QString term)
{
    targetTerms.push_back(term);
}
 
void VuoNodeClassListItemHighlighter::setNodeClassNameStartIndex(int index)
{
    nodeClassNameStartIndex = index;
}