abstract sclass AbstractLayoutManager implements LayoutManager {
  settable Dimension preferredSize = new Dimension(100, 100);
  settable Dimension minimumSize = new Dimension(10, 10);

  public void addLayoutComponent(String name, Component comp) {}
  public void removeLayoutComponent(Component comp) {}
  
  selfType preferredSize(int w, int h) {
    ret preferredSize(new Dimension(w, h));
  }
  
  public Dimension preferredLayoutSize(Container parent) {
    layoutContainer(parent);
    //print("preferredSize: " + preferredSize + " (parent size: " + jGetSize(parent) + ")");
    ret preferredSize;
  }
  
  public Dimension minimumLayoutSize(Container parent) {
    //print("minimumLayoutSize");
    ret minimumSize;
  }
}