!7

sclass SystemPrintLog extends DynModule {
  transient StringBuffer log;
  transient JTextArea ta;
  
  void start {
    log = getCreator('print_log);
    ownTimer(doEvery(1000, r updateMe));
  }
  
  JComponent visualize() {
    ret jSection("SYSTEM LOG", ta = moveCaretToEnd(typeWriterTextArea(str(log))));
  }
  
  void update {
    if (ta != null) setText(ta, str(log));
  }
}