question: protected Size2D arrangeNN ( BlockContainer container , Graphics2D g2 ) { List blocks = container . getBlocks ( ) ; Block b = ( Block ) blocks . get ( 0 ) ; Size2D s = b . arrange ( g2 , RectangleConstraint . NONE ) ; b . setBounds ( new Rectangle2D . Double ( 0.0 , 0.0 , s . width , s . height ) ) ; return new Size2D ( s . width , s . height ) ; }
target:  Arranges the blocks without any constraints.  This puts all blocks into a single row.