public int indexOf(final RoundedToolItem item){
  checkWidget();
  return items.indexOf(item);
}

public int indexOf ( final RoundedToolItem item ) { checkWidget ( ) ; return items . indexOf ( item ) ; }
searches the receiver ' s list starting at the first item ( index 0 ) until an item is found that is equal to the argument , and returns the index of that item . if no item is found , returns - 1 .
