public void getRestorableState(RestorableSupport rs, RestorableSupport.StateObject so) {
    rs.addStateValueAsBoolean(so, "drawInterior", this.isDrawInterior());

    rs.addStateValueAsBoolean(so, "drawOutline", this.isDrawOutline());

    rs.addStateValueAsBoolean(so, "enableAntialiasing", this.isEnableAntialiasing());

    this.getInteriorMaterial().getRestorableState(rs, rs.addStateObject(so, "interiorMaterial"));

    this.getOutlineMaterial().getRestorableState(rs, rs.addStateObject(so, "outlineMaterial"));

    rs.addStateValueAsDouble(so, "interiorOpacity", this.getInteriorOpacity());

    rs.addStateValueAsDouble(so, "outlineOpacity", this.getOutlineOpacity());

    rs.addStateValueAsDouble(so, "outlineWidth", this.getOutlineWidth());

    rs.addStateValueAsInteger(so, "outlineStippleFactor", this.getOutlineStippleFactor());

    rs.addStateValueAsInteger(so, "outlineStipplePattern", this.getOutlineStipplePattern());

    if (this.getInteriorImageSource() != null && this.getInteriorImageSource() instanceof String)
      rs.addStateValueAsString(so, "interiorImagePath", (String) this.getInteriorImageSource());

    rs.addStateValueAsDouble(so, "interiorImageScale", this.getInteriorImageScale());
  }