QTextFormat::FullWidthSelection but for multiple lines?

Trapezoid_Dreams

The Code Editor Example shows how to highlight the full width of the current line: https://doc.qt.io/qt-5/qtwidgets-widgets-codeeditor-example.html

It does this using QTextFormat::FullWidthSelection as follows:

QList<QTextEdit::ExtraSelection> extraSelections;

    if (!isReadOnly()) {
        QTextEdit::ExtraSelection selection;

        QColor lineColor = QColor(Qt::yellow).lighter(160);

        selection.format.setBackground(lineColor);
        selection.format.setProperty(QTextFormat::FullWidthSelection, true);
        selection.cursor = textCursor();
        selection.cursor.clearSelection();
        extraSelections.append(selection);
    }

    setExtraSelections(extraSelections);

For things that display as multiple lines due to word wrapping, I would like it to highlight every line that is a part of the current block (I think that is the right terminology for it). But QTextFormat::FullWidthSelection doesn't seem to do that. It's only highlighting the current line, one line at a time.

I tried highlighting the block as a whole instead, but that's not the same behavior as highlighting the full width of the line(s) themselves and I'm struggling to find if there's a way to manually recreate the selection behavior of QTextFormat::FullWidthSelection but for an entire block.

Trapezoid_Dreams

I think I figured out a solution. Could probably be a bit cleaner, but this seems to work ok so far. Basically am iterating through the block's lines and do full width selection for each.

QTextCursor cursor = textCursor();
cursor.clearSelection();
cursor.movePosition(QTextCursor::StartOfBlock);
for (int i = 0; i < cursor.block().lineCount(); i++)
{
    QTextEdit::ExtraSelection selection;

    QColor lineColor = QColor(Qt::lightGray);

    selection.format.setBackground(lineColor);
    selection.format.setProperty(QTextFormat::FullWidthSelection, true);
    selection.cursor = cursor;
    extraSelectionList.append(selection);

    if (i + 1 < cursor.block().lineCount())
        cursor.movePosition(QTextCursor::Down);
}