static <A extends Component> A centerPackInternalFrameWithMinSize(int w, int h, A c) {
  JInternalFrame win = getInternalFrame(c);
  if (win == null || getParent(win) == null) ret c;
  swing {
    win.pack();
    minFrameSize(win, w, h);
    centerInternalFrame(win);
    fixInternalFrame(win);
  }
  ret c;
}