Method drawText

src/plugins/codeeditor/codelens/codelensdelegate.cpp:133–209

}

void CodeLensDelegate::drawText(QPainter *painter, const QStyleOptionViewItem &option,
                                const QRect &rect, const QModelIndex &index) const
{
    const auto text = itemText(index);
    const int termStart = index.data(CodeLensItemRole::TermStartRole).toInt();
    const auto termEnd = index.data(CodeLensItemRole::TermEndRole).toInt();
    int termLength = termEnd - termStart;
    if (termStart < 0 || termStart >= text.length() || termLength < 1) {
        QItemDelegate::drawDisplay(painter,
                                   option,
                                   rect,
                                   QString(text).replace(QLatin1Char('\t'), tabStr));
        return;
    }

    // clip searchTermLength to end of line
    termLength = qMin(termLength, text.length() - termStart);
    const int textMargin = QApplication::style()->pixelMetric(QStyle::PM_FocusFrameHMargin) + 1;
    const QString textBefore = text.left(termStart).replace(QLatin1Char('\t'), tabStr);
    const QString textHighlight = text.mid(termStart, termLength).replace(QLatin1Char('\t'), tabStr);
    const QString textAfter = text.mid(termStart + termLength).replace(QLatin1Char('\t'), tabStr);
    int searchTermStartPixels = option.fontMetrics.horizontalAdvance(textBefore);
    int searchTermLengthPixels = option.fontMetrics.horizontalAdvance(textHighlight);
    int textAfterLengthPixels = option.fontMetrics.horizontalAdvance(textAfter);

    // rects
    QRect beforeHighlightRect(rect);
    beforeHighlightRect.setRight(beforeHighlightRect.left() + searchTermStartPixels);

    QRect resultHighlightRect(rect);
    resultHighlightRect.setLeft(beforeHighlightRect.right());
    resultHighlightRect.setRight(resultHighlightRect.left() + searchTermLengthPixels);

    QRect afterHighlightRect(rect);
    afterHighlightRect.setLeft(resultHighlightRect.right());
    afterHighlightRect.setRight(afterHighlightRect.left() + textAfterLengthPixels);

    // paint all highlight backgrounds
    bool isSelected = option.state & QStyle::State_Selected;
    QPalette::ColorGroup cg = option.state & QStyle::State_Enabled
                                  ? QPalette::Normal
                                  : QPalette::Disabled;
    if (cg == QPalette::Normal && !(option.state & QStyle::State_Active))
        cg = QPalette::Inactive;
    QStyleOptionViewItem baseOption = option;
    baseOption.state &= ~QStyle::State_Selected;
    if (isSelected) {
        painter->fillRect(beforeHighlightRect.adjusted(textMargin, 0, textMargin, 0),
                          option.palette.brush(cg, QPalette::Highlight));
        painter->fillRect(afterHighlightRect.adjusted(textMargin, 0, textMargin, 0),
                          option.palette.brush(cg, QPalette::Highlight));
    }

    QColor highlightBackground("#ffef0b");
    if (DGuiApplicationHelper::instance()->themeType() == DGuiApplicationHelper::DarkType)
        highlightBackground = QColor("#8a7f2c");
    painter->fillRect(resultHighlightRect.adjusted(textMargin, 0, textMargin - 1, 0),
                      QBrush(highlightBackground));