public void setDesignTimeInsets(final int insets) {
    Integer oldInsets = (Integer)myRootContainer.getDelegee().getClientProperty(GridLayoutManager.DESIGN_TIME_INSETS);
    if (oldInsets == null || oldInsets.intValue() != insets) {
      myRootContainer.getDelegee().putClientProperty(GridLayoutManager.DESIGN_TIME_INSETS, insets);
      revalidateRecursive(myRootContainer.getDelegee());
    }
  }
public void setDesignTimeInsets(final int insets)