width += (scrollbar.getMaximum() - scrollbar.getMinimum());
width += 16;
  void calculatePreferredSize()  {    int height;    int width;    height = width = 0;    if (scrollbar.getOrientation() == SwingConstants.HORIZONTAL)      {	width += incrButton.getPreferredSize().getWidth();	width += decrButton.getPreferredSize().getWidth();	width += (scrollbar.getMaximum() - scrollbar.getMinimum());	height = UIManager.getInt("ScrollBar.width");      }    else      {	height += incrButton.getPreferredSize().getHeight();	height += decrButton.getPreferredSize().getHeight();	height += (scrollbar.getMaximum() - scrollbar.getMinimum());	width = UIManager.getInt("ScrollBar.width");      }    Insets insets = scrollbar.getInsets();    height += insets.top + insets.bottom;    width += insets.left + insets.right;    preferredSize = new Dimension(width, height);  }