Flips this bounds handle or any if it's siblings if necessary.
While dragging the bounds handles, the node being resized may cross over itself and become reversed (if it is dragged through zero-width or zero-height). In this case, the locators for some of the bounds handles will have to be flipped to the opposite side.
PBoundsHandle Class | UMD.HCIL.PiccoloX.Handles Namespace