static <A extends Component> A setBounds(int x, int y, int w, int h, A a) {
  if (a != null)
    a.setBounds(x, y, w, h);
  ret a;
}

static <A extends Component> A setBounds(A a, Rect r) {
  if (a != null)
    a.setBounds(toRectangle(r));
  ret a;
}

static <A extends Component> A setBounds(A a, int x, int y, int w, int h) {
  ret setBounds(x, y, w, h, a);
}