sclass JDraggableBoxDemo is Swingable {
  cachedVisualize {
    var parent = jpanelWithoutLayoutManager();
    var box = jMinSize(400, 300, jcenteredlabel("Drag or resize me!"));
    setBorder(box, BorderFactory.createLineBorder(Color.green, 10);
    onMouseDown(box, event -> {
      if (!mouseEventIsInBorder(event)) {
        printVars("ComponentDragger start");
        new ComponentDragger(box, event).debug(true).start();
      }
    });
    new ComponentResizeDragger(box, box).debug(true);
    setBounds(box, 50, 50, 400, 300);
    addToContainer(parent, box);
    ret parent;
  }
}