case PE_FrameFocusRect:
        if (const QStyleOptionFocusRect *fropt = qstyleoption_cast<const QStyleOptionFocusRect *>(opt)) {
            //### check for d->alt_down
            if (!(fropt->state & State_KeyboardFocusChange) && !proxy()->styleHint(SH_UnderlineShortcut, opt))
                return;
            QRect r = opt->rect;
            p->save();
            p->setBackgroundMode(Qt::TransparentMode);
            QColor bg_col = fropt->backgroundColor;
            if (!bg_col.isValid())
                bg_col = p->background().color();
            // Create an "XOR" color.
            QColor patternCol((bg_col.red() ^ 0xff) & 0xff,
                              (bg_col.green() ^ 0xff) & 0xff,
                              (bg_col.blue() ^ 0xff) & 0xff);
            p->setBrush(QBrush(patternCol, Qt::Dense4Pattern));
            p->setBrushOrigin(r.topLeft());
            p->setPen(Qt::NoPen);
            p->drawRect(r.left(), r.top(), r.width(), 1);    // Top
            p->drawRect(r.left(), r.bottom(), r.width(), 1); // Bottom
            p->drawRect(r.left(), r.top(), 1, r.height());   // Left
            p->drawRect(r.right(), r.top(), 1, r.height());  // Right
            p->restore();