gc.setFont (getFont (i));
gc.setFont (getFont (i, false));
void recomputeTextWidths (GC gc) {	int validColumnCount = Math.max (1, parent.columns.length);	textWidths = new int [validColumnCount];	for (int i = 0; i < textWidths.length; i++) {		String value = getDisplayText (i);		if (value != null) {			gc.setFont (getFont (i));			textWidths [i] = gc.stringExtent (value).x;		}	}}