/**
     * Read State (color dots) from input stream
     *
     * @param instream
     * @throws IOException
     */
    public void readState(InputStream instream) throws IOException {
      DataInputStream in = new DataInputStream(new BufferedInputStream(instream));
      Map<Point, Color> new_state = new LinkedHashMap<Point, Color>();
      int num = in.readInt();
      for (int i = 0; i < num; i++) {
        Point point = new Point(in.readInt(), in.readInt());
        Color col = new Color(in.readInt());
        new_state.put(point, col);
      }

      synchronized (state) {
        state.clear();
        state.putAll(new_state);
        System.out.println("read " + state.size() + " elements");
        createOffscreenImage(true);
      }
    }
  public FileTextFieldImpl(
      final JTextField field,
      Finder finder,
      LookupFilter filter,
      Map<String, String> macroMap,
      final Disposable parent) {
    myPathTextField = field;
    myMacroMap = new TreeMap<String, String>();
    myMacroMap.putAll(macroMap);

    final InputMap listMap = (InputMap) UIManager.getDefaults().get("List.focusInputMap");
    final KeyStroke[] listKeys = listMap.keys();
    myDisabledTextActions = new HashSet<Action>();
    for (KeyStroke eachListStroke : listKeys) {
      final String listActionID = (String) listMap.get(eachListStroke);
      if ("selectNextRow".equals(listActionID) || "selectPreviousRow".equals(listActionID)) {
        final Object textActionID = field.getInputMap().get(eachListStroke);
        if (textActionID != null) {
          final Action textAction = field.getActionMap().get(textActionID);
          if (textAction != null) {
            myDisabledTextActions.add(textAction);
          }
        }
      }
    }

    final FileTextFieldImpl assigned = (FileTextFieldImpl) myPathTextField.getClientProperty(KEY);
    if (assigned != null) {
      assigned.myFinder = finder;
      assigned.myFilter = filter;
      return;
    }

    myPathTextField.putClientProperty(KEY, this);
    final boolean headless = ApplicationManager.getApplication().isUnitTestMode();

    myUiUpdater = new MergingUpdateQueue("FileTextField.UiUpdater", 200, false, myPathTextField);
    if (!headless) {
      new UiNotifyConnector(myPathTextField, myUiUpdater);
    }

    myFinder = finder;
    myFilter = filter;

    myFileSpitRegExp = myFinder.getSeparator().replaceAll("\\\\", "\\\\\\\\");

    myPathTextField
        .getDocument()
        .addDocumentListener(
            new DocumentListener() {
              public void insertUpdate(final DocumentEvent e) {
                processTextChanged();
              }

              public void removeUpdate(final DocumentEvent e) {
                processTextChanged();
              }

              public void changedUpdate(final DocumentEvent e) {
                processTextChanged();
              }
            });

    myPathTextField.addKeyListener(
        new KeyAdapter() {
          public void keyPressed(final KeyEvent e) {
            processListSelection(e);
          }
        });

    myPathTextField.addFocusListener(
        new FocusAdapter() {
          public void focusLost(final FocusEvent e) {
            closePopup();
          }
        });

    myCancelAction = new CancelAction();

    new LazyUiDisposable<FileTextFieldImpl>(parent, field, this) {
      protected void initialize(
          @NotNull Disposable parent, @NotNull FileTextFieldImpl child, @Nullable Project project) {
        Disposer.register(child, myUiUpdater);
      }
    };
  }