deserialize method

Implementation

@override
void deserialize(XmlElement xml) {
  // deserialize
  super.deserialize(xml);

  // properties
  marginTop = Xml.get(node: xml, tag: 'top');
  marginRight = Xml.get(node: xml, tag: 'right');
  marginBottom = Xml.get(node: xml, tag: 'bottom');
  marginLeft = Xml.get(node: xml, tag: 'left');

  var all = Xml.get(node: xml, tag: 'all');
  if (all != null) {
    marginTop = all;
    marginRight = all;
    marginBottom = all;
    marginLeft = all;
  }

  var horizontal =
      Xml.get(node: xml, tag: 'horizontal') ?? Xml.get(node: xml, tag: 'hor');
  if (horizontal != null) {
    marginRight = horizontal;
    marginLeft = horizontal;
  }

  var vertical =
      Xml.get(node: xml, tag: 'vertical') ?? Xml.get(node: xml, tag: 'ver');
  if (vertical != null) {
    marginTop = vertical;
    marginBottom = vertical;
  }
}