add a new rectangle to the model and update the view accordingly concode_field_sep View view concode_elem_sep ThreadLocal<Integer> percentageDone concode_elem_sep Model model concode_field_sep void exit concode_elem_sep int executeLongOperationStep concode_elem_sep void addView concode_elem_sep Integer initialValue concode_elem_sep void loadImage
void function ( Rectangle arg0 ) { model . addRect ( arg0 ) ; view . repaint ( ) ; }