QLineEdit, draw only text

[Radagast]

Qt 4.4.3, Windows XP
I used 'search', but didn't find an answer...
Well I need to tune drawing of QLineEdit (I'm subclassing it) so it paints only text (possibly selected) and flicking cursor. No background and no frame. I can disable background with

QPalette p = palette();
p.setBrush(backgroundRole(), QBrush(Qt::transparent));
setPalette(p);

QPalette p = palette();
p.setBrush(backgroundRole(), QBrush(Qt::transparent));
setPalette(p);

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but the thin blue line is still painted. In Qt's source there is:

QStyleOptionFrameV2 panel;
    initStyleOption(&panel);
    style()->drawPrimitive(QStyle::PE_PanelLineEdit, &panel, &p, this);

QStyleOptionFrameV2 panel;
    initStyleOption(&panel);
    style()->drawPrimitive(QStyle::PE_PanelLineEdit, &panel, &p, this);

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So is it possible not to draw the frame without total reimplementation of paintEvent (it's rather huge )?
thanks in advance.

Added: sorry, I didn't notice the setFrame