!7

sclass GeneralKeywordList extends DynCalculatedList {
  Set<S> set = new HashSet;
  
  bool warnOnDelete() { ret nempty(set); }
  
  JComponent visualize() {
    ret centerAndSouthWithMargins(jSection("KEYWORDS", super.visualize()),
      jcenteredbuttons("Add a keyword...", r {
        inputText("Add keyword", voidfunc(S s) {
          lock lock;
          s = trim(s);
          if (add(set, s))
            appendToLocalMechLog("General keywords", s);
          print("Set: " + set + ", list: " + list);
          change(); updateMe();
        });
      }));
  }
  
  L<S> calc() {
    ret sortedIC(set);
  }
}