return null;
return new Rectangle(0, 0, 0, 0);
  protected Rectangle getVisibleEditorRect()  {    int width = textComponent.getWidth();    int height = textComponent.getHeight();    if (width <= 0 || height <= 0)      return null;	    Insets insets = textComponent.getInsets();    return new Rectangle(insets.left, insets.top,			 width - insets.left + insets.right,			 height - insets.top + insets.bottom);  }