45 public static final String OPEN = "open"; |
45 public static final String OPEN = "open"; |
46 public static final String SAVE_AS = "save as"; |
46 public static final String SAVE_AS = "save as"; |
47 public static final String QUIT = "quit"; |
47 public static final String QUIT = "quit"; |
48 public static final String ABOUT = "about"; |
48 public static final String ABOUT = "about"; |
49 |
49 |
50 private Field field; |
50 private final Field field; |
51 private Solver solver; |
51 private final Solver solver; |
52 private DocumentHandler doc; |
52 private final DocumentHandler doc; |
53 |
53 |
54 /** |
54 /** |
55 * Constructs a new action handler instance. |
55 * Constructs a new action handler instance. |
56 * |
56 * |
57 * @param f a reference to the playing field |
57 * @param f a reference to the playing field |