outsetsOf

component's paint outsets: per side, from 0 to insets, or to decorationOutsets where a negative border inset leaves insets below them. Under every parent, insets is its border insets plus decorationOutsets, and decorationOutsets is the outsets its decoration steps take, such as a shadow's reach, none for a stock widget. A step painted at a layout modifier's box, a rotating or scaling layer and a child placed past the edge are in neither, and never take layout space. Taken from the outside of the insets inward. The library clamps each side. Called on the EDT during layout and when the decoration changes; reads no snapshot state; does not throw. Change the answer only with the component's insets or look and feel. Keeps neither argument; may return one of them.