Change the color of QRubberBand

[franco.amato]

Try this -
painter.setOpacity(0.5)... in the paintEvent

It doesn't work.
Here the new code:

class WfRubberBand : public QRubberBand
{
public:
 
	WfRubberBand( Shape s, QWidget * p = 0 ) : QRubberBand( s, p ) 
	{
		QPalette palette;
		//palette.setBrush( QPalette::WindowText, QBrush( Qt::red ) );
		palette.setBrush( QPalette::Foreground, QBrush( Qt::red ) );
		setPalette(palette);
	}
 
protected:
 
	virtual void paintEvent( QPaintEvent * ) 
	{
		QStylePainter painter(this);
 
		QStyleOptionFocusRect option;
		option.initFrom( this );
 
		painter.drawControl(QStyle::CE_FocusFrame, option);
		painter.setOpacity(0.5); // from aamer4yu
	}
};

class WfRubberBand : public QRubberBand
{
public:

	WfRubberBand( Shape s, QWidget * p = 0 ) : QRubberBand( s, p ) 
	{
		QPalette palette;
		//palette.setBrush( QPalette::WindowText, QBrush( Qt::red ) );
		palette.setBrush( QPalette::Foreground, QBrush( Qt::red ) );
		setPalette(palette);
	}

protected:

	virtual void paintEvent( QPaintEvent * ) 
	{
		QStylePainter painter(this);

		QStyleOptionFocusRect option;
		option.initFrom( this );

		painter.drawControl(QStyle::CE_FocusFrame, option);
		painter.setOpacity(0.5); // from aamer4yu
	}
};

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Which can be the problem?