code: public Serializable getLayoutConstraints(final WComponent child) {
  		PanelModel model = getComponentModel();
  
  		if (model.layoutConstraints != null) {
  			return model.layoutConstraints.get(child);
  		}
  
  		return null;
  	}
docs: Retrieves the layout constraints for the given component, if they have been set.
  
  @param child the child component to retrieve the constraints for.
  @return the layout constraints for the given child, if set.