nl_tokens: Calculates the number of columns needed to host all field editors .
pl_tokens: private int calcNumberOfColumns ( ) { int result = 0 ; if ( fields != null ) { Iterator < FieldEditor > e = fields . iterator ( ) ; while ( e . hasNext ( ) ) { FieldEditor pe = e . next ( ) ; result = Math . <mask> ( result , pe . getNumberOfControls ( ) ) ; } } return result ; }