requirementsValid[X_AXIS] = false; requirementsValid[Y_AXIS] = false;
  public BoxView(Element element, int axis)  {    super(element);    myAxis = axis;    layoutValid[0] = false;    layoutValid[1] = false;    span[0] = 0;    span[1] = 0;    requirements[0] = new SizeRequirements();    requirements[1] = new SizeRequirements();    // Initialize the cache arrays.    spans[0] = new int[0];    spans[1] = new int[0];    offsets[0] = new int[0];    offsets[1] = new int[0];  }