* @param rect the rectangle of the header area.
* @param hover true if the label is being hovered over by the mouse.
*/
- virtual void paint_label(QPainter &p, const QRect &rect, bool hover) = 0;
+ virtual void paint_label(QPainter &p, const QRect &rect, bool hover);
/**
* Paints the background layer of the item with a QPainter