\form#0:$ (2 {*} (4 + LineSpacing)) $
\form#1:$ ((2 {*} 4) + LineSpacing) $
\form#2:$ middleWidth=widgetWidth-(leftEndWidth+rightEndWidth) $
\form#3:$ rightEdge=widgetWidth-rightEndWidth $
\form#4:$ (4 * 2) + LineSpacing $
\form#5:$ tmp = 4 + LineSpacing $
\form#6:$ 2 * tmp $
\form#7:$ (2 * (4 + LineSpacing)) $
