/**
* Computes the outline rectangle of a label.
* @param p the QPainter to lay out text with.
* @param rect The rectangle of the signal header.
* @return Returns the rectangle of the signal label.
*/
/**
* Computes the outline rectangle of a label.
* @param p the QPainter to lay out text with.
* @param rect The rectangle of the signal header.
* @return Returns the rectangle of the signal label.
*/