public static void main(String args[]) {
   try {
     UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName());
   } catch (Exception e) {
   }
   JFrame mainscreenGUIframe = new Main_ScreenGUIFrame();
   mainscreenGUIframe.setVisible(true);
 }
  // ------------------------------------------------------------------------
  TextViewer(JFrame inParentFrame) {
    // super(true); //is double buffered - only for panels

    textViewerFrame = this;
    parentFrame = inParentFrame;
    lastViewedDirStr = "";
    lastViewedFileStr = "";

    setTitle(resources.getString("Title"));
    addWindowListener(new AppCloser());
    pack();
    setSize(500, 600);

    warningPopup = new WarningDialog(this);
    okCancelPopup = new WarningDialogOkCancel(this);
    messagePopup = new MessageDialog(this);
    okCancelMessagePopup = new MessageDialogOkCancel(this);

    // Force SwingSet to come up in the Cross Platform L&F
    try {
      UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName());
      // If you want the System L&F instead, comment out the above line and
      // uncomment the following:
      // UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
    } catch (Exception exc) {
      String errstr = "TextViewer:Error loading L&F: " + exc;
      warningPopup.display(errstr);
    }

    Container cf = getContentPane();
    cf.setBackground(Color.lightGray);
    // Border etched=BorderFactory.createEtchedBorder();
    // Border title=BorderFactory.createTitledBorder(etched,"TextViewer");
    // cf.setBorder(title);
    cf.setLayout(new BorderLayout());

    // create the embedded JTextComponent
    editor1 = createEditor();
    editor1.setFont(new Font("monospaced", Font.PLAIN, 12));
    // aa -added next line
    setPlainDocument((PlainDocument) editor1.getDocument()); // sets doc1

    // install the command table
    commands = new Hashtable();
    Action[] actions = getActions();
    for (int i = 0; i < actions.length; i++) {
      Action a = actions[i];
      commands.put(a.getValue(Action.NAME), a);
      // System.out.println("Debug:TextViewer: actionName:"+a.getValue(Action.NAME));
    }
    // editor1.setPreferredSize(new Dimension(,));
    // get setting from user preferences
    if (UserPref.keymapType.equals("Word")) {
      editor1 = updateKeymapForWord(editor1);
    } else {
      editor1 = updateKeymapForEmacs(editor1);
    }

    scroller1 = new JScrollPane();
    viewport1 = scroller1.getViewport();
    viewport1.add(editor1);
    scroller1.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
    scroller1.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);

    try {
      String vpFlag = resources.getString("ViewportBackingStore");
      Boolean bs = new Boolean(vpFlag);
      viewport1.setBackingStoreEnabled(bs.booleanValue());
    } catch (MissingResourceException mre) {
      System.err.println("TextViewer:missing resource:" + mre.getMessage());
      // just use the viewport1 default
    }

    menuItems = new Hashtable();

    menubar = createMenubar();

    lowerPanel = new JPanel(true); // moved double buffering to here
    lowerPanel.setLayout(new BorderLayout());
    lowerPanel.add("North", createToolbar());
    lowerPanel.add("Center", scroller1);

    cf.add("North", menubar);
    cf.add("Center", lowerPanel);
    cf.add("South", createStatusbar());

    // for the find/search utilities
    mySearchDialog = new SearchDialog(this);

    // System.out.println("Debug:TextViewer: end of TextViewer constructor");

  }