question: return the layout target . concode_field_sep IncrementalLayout _delegate concode_field_sep void layout concode_elem_sep void nodeMoved concode_elem_sep void edgeDrawn concode_elem_sep void setLayoutTarget concode_elem_sep void edgeRouted concode_elem_sep void nodeDrawn
target: LayoutTarget function ( ) { return _delegate . getLayoutTarget ( ) ; }