/* Copyright (C) 2012-2018, 2020-2025 D. R. Commander.  All Rights Reserved.
 * Copyright (C) 2011-2013 Brian P. Hinz
 * Copyright (C) 2002-2005 RealVNC Ltd.  All Rights Reserved.
 *
 * This is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this software; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
 * USA.
 */

package com.turbovnc.vncviewer;

import java.awt.*;
import java.awt.event.*;
import java.io.File;
import java.util.*;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.event.*;

import com.turbovnc.rdr.*;
import com.turbovnc.rfb.*;

class OptionsDialog extends Dialog implements ActionListener, ChangeListener,
  ItemListener, DocumentListener {

  // Constants
  // Static variables
  static LogWriter vlog = new LogWriter("OptionsDialog");

  private OptionsDialogCallback callback;
  private String node;
  private Params params;
  private JTabbedPane tabPane;
  private JPanel buttonPane, encodingPanel, connPanel, globalPanel, secPanel;
  private JCheckBox jpeg, interframe, turboVNCServer;
  private JComboBox menuKey, scalingFactor, encMethodComboBox, span,
    desktopSize, grabKeyboard;
  private JSlider jpegQualityLevel, subsamplingLevel, compressionLevel;
  private JCheckBox viewOnly, recvClipboard, sendClipboard, acceptBell,
    reverseScroll, fsAltEnter;
  private JCheckBox fullScreen, shared, cursorShape, showToolbar;
  private JCheckBox secNone, secVnc, secPlain, secTLSNone, secTLSVnc,
    secTLSPlain, secX509None, secX509Vnc, secX509Plain, secUnixLogin;
  private JPanel encNonePanel, encTLSPanel, encX509Panel;
  private JCheckBox sendLocalUsername, tunnel;
  private JTextField username, jump;
  private JLabel usernameLabel, jumpLabel, jumpLabel2;
  private JButton okButton, cancelButton;
  private JButton x509caButton, x509crlButton;
  private JLabel x509caLabel, x509crlLabel;
  private JTextField x509ca, x509crl;
  private JButton clearHistoryButton, deleteOptionsButton, resetButton;
  private JLabel encMethodLabel;
  private JLabel jpegQualityLabel, jpegQualityLabelLo, jpegQualityLabelHi;
  private JLabel subsamplingLabel, subsamplingLabelLo, subsamplingLabelHi;
  private JLabel compressionLabel;
  private String jpegQualityLabelString, subsamplingLabelString;
  private Hashtable<Integer, String> subsamplingLabelTable;
  private String oldScalingFactor, oldDesktopSize;
  private boolean enableX509 = true;
  private static final String[] SCALING_FACTORS = {
    "Auto", "Fixed Aspect Ratio", "50%", "75%", "95%", "100%", "105%", "125%",
    "150%", "175%", "200%", "250%", "300%", "350%", "400%"
  };
  private static final String[] SCALING_FACTORS_ADR = {
    "50%", "75%", "95%", "100%", "105%", "125%", "150%", "175%", "200%",
    "250%", "300%", "350%", "400%"
  };
  private static final DefaultComboBoxModel<String> CB_MODEL =
    new DefaultComboBoxModel<String>(SCALING_FACTORS);
  private static final DefaultComboBoxModel<String> CB_MODEL_ADR =
    new DefaultComboBoxModel<String>(SCALING_FACTORS_ADR);

  OptionsDialog(OptionsDialogCallback callback_, Params params_) {
    super(true);
    callback = callback_;
    params = params_;

    tabPane = new JTabbedPane();

    // Encoding tab
    encodingPanel = new JPanel(new GridBagLayout());

    JPanel dummyPanel = new JPanel(new GridBagLayout());

    encMethodLabel = new JLabel("Encoding method:");
    Object[] encMethod = {
      "Tight + Perceptually Lossless JPEG (LAN)",
      "Tight + Medium-Quality JPEG",
      "Tight + Low-Quality JPEG (WAN)",
      "Lossless Tight (Gigabit)",
      "Lossless Tight + Zlib (WAN)"
    };
    encMethodComboBox = new JComboBox(encMethod);
    encMethodComboBox.addActionListener(this);

    Dialog.addGBComponent(encMethodLabel, dummyPanel,
                          0, 0, 3, 1, 2, 2, 0, 0,
                          GridBagConstraints.NONE,
                          GridBagConstraints.LINE_START,
                          new Insets(2, 2, 2, 2));
    Dialog.addGBComponent(encMethodComboBox, dummyPanel,
                          0, 1, 3, 1, 2, 2, 0, 0,
                          GridBagConstraints.NONE,
                          GridBagConstraints.LINE_START,
                          new Insets(2, 20, 2, 2));

    jpeg = new JCheckBox("Allow JPEG compression");
    jpeg.addItemListener(this);

    Dialog.addGBComponent(jpeg, dummyPanel,
                          0, 2, 3, 1, 0, 2, 0, 0,
                          GridBagConstraints.NONE,
                          GridBagConstraints.LINE_START,
                          new Insets(2, 0, 2, 2));

    subsamplingLabelString =
      new String("JPEG chrominance subsampling: ");
    subsamplingLabel = new JLabel();
    subsamplingLevel =
      new JSlider(JSlider.HORIZONTAL, 0, SubsampParameter.NUMOPT - 1, 0);
    subsamplingLevel.addChangeListener(this);
    subsamplingLevel.setMajorTickSpacing(1);
    subsamplingLevel.setSnapToTicks(true);
    subsamplingLevel.setPaintTicks(true);
    subsamplingLevel.setInverted(true);
    subsamplingLabelTable = new Hashtable<Integer, String>();
    subsamplingLabelTable.put(0, new String("None"));
    subsamplingLabelTable.put(1, new String("2X"));
    subsamplingLabelTable.put(2, new String("4X"));
    subsamplingLabelTable.put(3, new String("Grayscale"));
    subsamplingLevel.setPaintLabels(false);
    subsamplingLabelLo = new JLabel("fast");
    subsamplingLabelHi = new JLabel("best");
    subsamplingLabel.setText(subsamplingLabelString +
      subsamplingLabelTable.get(subsamplingLevel.getValue()));

    Dialog.addGBComponent(subsamplingLabel, dummyPanel,
                          0, 3, 3, 1, 2, 2, 0, 0,
                          GridBagConstraints.NONE,
                          GridBagConstraints.LINE_START,
                          new Insets(2, 2, 2, 2));
    Dialog.addGBComponent(subsamplingLabelLo, dummyPanel,
                          0, 4, 1, 1, 2, 2, 0, 0,
                          GridBagConstraints.NONE,
                          GridBagConstraints.LINE_START,
                          new Insets(2, 12, 2, 2));
    Dialog.addGBComponent(subsamplingLevel, dummyPanel,
                          1, 4, 1, 1, 2, 2, 0, 0,
                          GridBagConstraints.NONE,
                          GridBagConstraints.LINE_START,
                          new Insets(2, 2, 2, 2));
    Dialog.addGBComponent(subsamplingLabelHi, dummyPanel,
                          2, 4, 1, 1, 2, 2, 0, 0,
                          GridBagConstraints.NONE,
                          GridBagConstraints.LINE_START,
                          new Insets(2, 2, 2, 2));

    jpegQualityLabelString =
      new String("JPEG image quality: ");
    jpegQualityLabel = new JLabel();
    jpegQualityLevel =
      new JSlider(JSlider.HORIZONTAL, 1, 100, Params.DEFQUAL);
    jpegQualityLevel.addChangeListener(this);
    jpegQualityLevel.setMajorTickSpacing(10);
    jpegQualityLevel.setMinorTickSpacing(5);
    jpegQualityLevel.setSnapToTicks(false);
    jpegQualityLevel.setPaintTicks(true);
    jpegQualityLevel.setPaintLabels(false);
    jpegQualityLabelLo = new JLabel("poor");
    jpegQualityLabelHi = new JLabel("best");
    jpegQualityLabel.setText(jpegQualityLabelString +
      jpegQualityLevel.getValue());

    Dialog.addGBComponent(jpegQualityLabel, dummyPanel,
                          0, 5, 3, 1, 2, 2, 0, 0,
                          GridBagConstraints.NONE,
                          GridBagConstraints.LINE_START,
                          new Insets(2, 2, 2, 2));
    Dialog.addGBComponent(jpegQualityLabelLo, dummyPanel,
                          0, 6, 1, 1, 2, 2, 0, 0,
                          GridBagConstraints.NONE,
                          GridBagConstraints.LINE_START,
                          new Insets(2, 12, 2, 2));
    Dialog.addGBComponent(jpegQualityLevel, dummyPanel,
                          1, 6, 1, 1, 2, 2, 0, 0,
                          GridBagConstraints.NONE,
                          GridBagConstraints.LINE_START,
                          new Insets(2, 2, 2, 2));
    Dialog.addGBComponent(jpegQualityLabelHi, dummyPanel,
                          2, 6, 1, 1, 2, 2, 0, 0,
                          GridBagConstraints.NONE,
                          GridBagConstraints.LINE_START,
                          new Insets(2, 2, 2, 2));

    compressionLabel = new JLabel();
    compressionLevel =
      new JSlider(JSlider.HORIZONTAL, 0, 2, 1);
    compressionLevel.addChangeListener(this);
    compressionLevel.setMajorTickSpacing(1);
    compressionLevel.setSnapToTicks(true);
    compressionLevel.setPaintTicks(true);
    compressionLevel.setPaintLabels(false);
    compressionLabel.setText("Compression level (see docs): " +
                             compressionLevel.getValue());

    Dialog.addGBComponent(compressionLabel, dummyPanel,
                          0, 7, 3, 1, 2, 2, 0, 0,
                          GridBagConstraints.NONE,
                          GridBagConstraints.LINE_START,
                          new Insets(2, 2, 2, 2));
    Dialog.addGBComponent(compressionLevel, dummyPanel,
                          0, 8, 3, 1, 2, 2, 0, 0,
                          GridBagConstraints.NONE,
                          GridBagConstraints.LINE_START,
                          new Insets(2, 2, 2, 2));

    interframe = new JCheckBox("Interframe comparison");
    interframe.addItemListener(this);

    Dialog.addGBComponent(interframe, dummyPanel,
                          0, 9, 3, 1, 0, 2, 0, 0,
                          GridBagConstraints.NONE,
                          GridBagConstraints.LINE_START,
                          new Insets(2, 0, 2, 2));

    turboVNCServer = new JCheckBox("TurboVNC server");
    turboVNCServer.addItemListener(this);

    Dialog.addGBComponent(turboVNCServer, dummyPanel,
                          0, 10, 3, 1, 0, 2, 0, 0,
                          GridBagConstraints.NONE,
                          GridBagConstraints.LINE_START,
                          new Insets(2, 0, 2, 2));

    Dialog.addGBComponent(dummyPanel, encodingPanel,
                          0, 0, 1, GridBagConstraints.REMAINDER, 0, 0, 1, 1,
                          GridBagConstraints.NONE,
                          GridBagConstraints.FIRST_LINE_START,
                          new Insets(4, 4, 4, 4));

    // Connection tab
    connPanel = new JPanel(new GridBagLayout());

    dummyPanel = new JPanel(new GridBagLayout());

    JPanel displayPanel = new JPanel(new GridBagLayout());
    displayPanel.setBorder(BorderFactory.createTitledBorder("Display"));

    JLabel scalingFactorLabel = new JLabel("Scaling factor:");
    scalingFactor = new JComboBox(CB_MODEL);
    scalingFactor.setEditable(true);
    scalingFactor.addItemListener(this);

    Dialog.addGBComponent(scalingFactorLabel, displayPanel,
                          0, 0, 1, 1, 2, 2, 1, 0,
                          GridBagConstraints.NONE,
                          GridBagConstraints.FIRST_LINE_START,
                          new Insets(8, 8, 0, 5));
    Dialog.addGBComponent(scalingFactor, displayPanel,
                          1, 0, 1, 1, 2, 2, 25, 0,
                          GridBagConstraints.NONE,
                          GridBagConstraints.FIRST_LINE_START,
                          new Insets(4, 5, 0, 5));

    Object[] desktopSizeOptions = {
      "Auto", "Server", "480x320", "640x360", "640x480", "800x480", "800x600",
      "854x480", "960x540", "960x600", "960x640",
      "1024x640", "1024x640+0+0,1024x640+1024+0",
      "1024x768", "1136x640", "1152x864",
      "1280x720", "1280x720+0+0,1280x720+1280+0",
      "1280x800", "1280x800+0+0,1280x800+1280+0",
      "1280x960", "1280x1024",
      "1344x840", "1344x840+0+0,1344x840+1344+0",
      "1344x1008", "1360x768",
      "1366x768", "1366x768+0+0,1366x768+1366+0",
      "1400x1050",
      "1440x900", "1440x900+0+0,1440x900+1440+0",
      "1600x900", "1600x900+0+0,1600x900+1600+0",
      "1600x1000", "1600x1000+0+0,1600x1000+1600+0",
      "1600x1200", "1680x1050",
      "1920x1080", "1920x1080+0+0,1920x1080+1920+0",
      "1920x1200", "1920x1200+0+0,1920x1200+1920+0",
      "2048x1152", "2048x1536",
      "2560x1440", "2560x1440+0+0,2560x1440+2560+0",
      "2560x1600", "2560x1600+0+0,2560x1600+2560+0",
      "2880x1800", "2880x1800+0+0,2880x1800+2880+0",
      "3200x1800", "3200x1800+0+0,3200x1800+3200+0",
      "3840x2160", "3840x2160+0+0,3840x2160+3840+0"
    };
    JLabel desktopSizeLabel = new JLabel("Remote desktop size:");
    desktopSize = new JComboBox(desktopSizeOptions);
    desktopSize.setEditable(true);
    desktopSize.addItemListener(this);
    desktopSize.setMaximumSize(desktopSize.getPreferredSize());

    Dialog.addGBComponent(desktopSizeLabel, displayPanel,
                          0, 1, 1, 1, 2, 2, 1, 0,
                          GridBagConstraints.NONE,
                          GridBagConstraints.FIRST_LINE_START,
                          new Insets(8, 8, 0, 5));
    Dialog.addGBComponent(desktopSize, displayPanel,
                          1, 1, 1, 1, 2, 2, 25, 0,
                          GridBagConstraints.NONE,
                          GridBagConstraints.FIRST_LINE_START,
                          new Insets(4, 5, 0, 5));

    fullScreen = new JCheckBox("Full-screen mode");
    fullScreen.addItemListener(this);

    Dialog.addGBComponent(fullScreen, displayPanel,
                          0, 2, 2, 1, 2, 2, 1, 0,
                          GridBagConstraints.HORIZONTAL,
                          GridBagConstraints.FIRST_LINE_START,
                          new Insets(4, 5, 0, 5));

    Object[] spanOptions = {
      "Primary monitor only", "All monitors", "Automatic"
    };
    JLabel spanLabel;
    if (Utils.isX11() && Helper.isAvailable())
      spanLabel = new JLabel("Full-screen span mode:");
    else
      spanLabel = new JLabel("Span mode:");
    span = new JComboBox(spanOptions);
    span.addItemListener(this);
    if (Utils.isX11() && !Helper.isAvailable()) {
      spanLabel.setEnabled(false);
      span.setEnabled(false);
    }

    Dialog.addGBComponent(spanLabel, displayPanel,
                          0, 3, 1, 1, 2, 2, 1, 0,
                          GridBagConstraints.NONE,
                          GridBagConstraints.FIRST_LINE_START,
                          new Insets(8, 8, 0, 5));
    Dialog.addGBComponent(span, displayPanel,
                          1, 3, 1, 1, 2, 2, 25, 0,
                          GridBagConstraints.NONE,
                          GridBagConstraints.FIRST_LINE_START,
                          new Insets(4, 5, 0, 5));

    acceptBell = new JCheckBox("Beep when requested by the server");
    acceptBell.addItemListener(this);

    Dialog.addGBComponent(acceptBell, displayPanel,
                          0, 4, 2, 1, 2, 2, 1, 1,
                          GridBagConstraints.HORIZONTAL,
                          GridBagConstraints.FIRST_LINE_START,
                          new Insets(4, 5, 0, 5));

    cursorShape =
      new JCheckBox("Render cursor locally (enable remote cursor shape updates)");
    cursorShape.addItemListener(this);

    Dialog.addGBComponent(cursorShape, displayPanel,
                          0, 5, 2, 1, 2, 2, 1, 0,
                          GridBagConstraints.HORIZONTAL,
                          GridBagConstraints.FIRST_LINE_START,
                          new Insets(4, 5, 0, 5));

    showToolbar = new JCheckBox("Show toolbar");
    showToolbar.addItemListener(this);

    Dialog.addGBComponent(showToolbar, displayPanel,
                          0, 6, 2, 1, 2, 2, 1, 0,
                          GridBagConstraints.HORIZONTAL,
                          GridBagConstraints.FIRST_LINE_START,
                          new Insets(4, 5, 0, 5));

    JPanel inputPanel = new JPanel(new GridBagLayout());
    inputPanel.setBorder(BorderFactory.createTitledBorder("Input"));

    viewOnly = new JCheckBox("View only (ignore mouse & keyboard)");
    viewOnly.addItemListener(this);

    Dialog.addGBComponent(viewOnly, inputPanel,
                          0, 0, 2, 1, 2, 2, 1, 0,
                          GridBagConstraints.HORIZONTAL,
                          GridBagConstraints.LINE_START,
                          new Insets(4, 5, 0, 5));

    reverseScroll = new JCheckBox("Reverse scroll wheel direction");
    reverseScroll.addItemListener(this);

    Dialog.addGBComponent(reverseScroll, inputPanel,
                          0, 1, 2, 1, 2, 2, 1, 0,
                          GridBagConstraints.HORIZONTAL,
                          GridBagConstraints.LINE_START,
                          new Insets(4, 5, 0, 5));

    fsAltEnter = new JCheckBox("Toggle full-screen mode with Alt-Enter");
    fsAltEnter.addItemListener(this);

    Dialog.addGBComponent(fsAltEnter, inputPanel,
                          0, 2, 2, 1, 2, 2, 1, 0,
                          GridBagConstraints.HORIZONTAL,
                          GridBagConstraints.LINE_START,
                          new Insets(4, 5, 0, 5));

    JLabel menuKeyLabel = new JLabel("Menu key:");
    String[] menuKeys = new String[MenuKey.getSymbolCount()];
    for (int i = 0; i < MenuKey.getSymbolCount(); i++)
      menuKeys[i] = MenuKey.getSymbols()[i].name;
    menuKey  = new JComboBox(menuKeys);
    menuKey.addItemListener(this);

    Dialog.addGBComponent(menuKeyLabel, inputPanel,
                          0, 3, 1, 1, 2, 2, 1, 0,
                          GridBagConstraints.NONE,
                          GridBagConstraints.FIRST_LINE_START,
                          new Insets(8, 8, 0, 5));
    Dialog.addGBComponent(menuKey, inputPanel,
                          1, 3, 1, 1, 2, 2, 25, 0,
                          GridBagConstraints.NONE,
                          GridBagConstraints.FIRST_LINE_START,
                          new Insets(4, 5, 0, 5));

    boolean enableGrab = Utils.osGrab() && Helper.isAvailable();

    if (enableGrab) {
      JLabel grabLabel;
      if (Utils.isX11() && params.grabPointer.get())
        grabLabel = new JLabel("Keyboard/pointer grab mode:");
      else
        grabLabel = new JLabel("Keyboard grab mode:");
      Object[] grabModes = { "Full-screen only", "Always", "Manual" };
      grabKeyboard = new JComboBox(grabModes);
      grabKeyboard.addItemListener(this);

      Dialog.addGBComponent(grabLabel, inputPanel,
                            0, 4, 1, 1, 2, 2, 1, 0,
                            GridBagConstraints.NONE,
                            GridBagConstraints.FIRST_LINE_START,
                            new Insets(8, 8, 0, 5));
      Dialog.addGBComponent(grabKeyboard, inputPanel,
                            1, 4, 1, 1, 2, 2, 25, 0,
                            GridBagConstraints.NONE,
                            GridBagConstraints.FIRST_LINE_START,
                            new Insets(4, 5, 0, 5));
    }

    JPanel restrictionsPanel = new JPanel(new GridBagLayout());
    restrictionsPanel.setBorder(
      BorderFactory.createTitledBorder("Restrictions"));

    shared = new JCheckBox("Request shared session");
    shared.addItemListener(this);

    Dialog.addGBComponent(shared, restrictionsPanel,
                          0, 0, 2, 1, 2, 2, 1, 0,
                          GridBagConstraints.HORIZONTAL,
                          GridBagConstraints.FIRST_LINE_START,
                          new Insets(4, 5, 0, 5));

    recvClipboard = new JCheckBox("Accept clipboard from server");
    recvClipboard.addItemListener(this);

    Dialog.addGBComponent(recvClipboard, restrictionsPanel,
                          0, 1, 2, 1, 2, 2, 1, 0,
                          GridBagConstraints.HORIZONTAL,
                          GridBagConstraints.LINE_START,
                          new Insets(4, 5, 0, 5));

    sendClipboard = new JCheckBox("Send clipboard to server");
    sendClipboard.addItemListener(this);

    Dialog.addGBComponent(sendClipboard, restrictionsPanel,
                          0, 2, 2, 1, 2, 2, 1, 0,
                          GridBagConstraints.HORIZONTAL,
                          GridBagConstraints.LINE_START,
                          new Insets(4, 5, 0, 5));

    Dialog.addGBComponent(displayPanel, dummyPanel,
                          0, 0, 1, 1, 2, 2, 1, 0,
                          GridBagConstraints.HORIZONTAL,
                          GridBagConstraints.FIRST_LINE_START,
                          new Insets(4, 5, 0, 30));
    Dialog.addGBComponent(inputPanel, dummyPanel,
                          0, 1, 1, 1, 2, 2, 1, 0,
                          GridBagConstraints.HORIZONTAL,
                          GridBagConstraints.LINE_START,
                          new Insets(4, 5, 0, 30));
    Dialog.addGBComponent(restrictionsPanel, dummyPanel,
                          0, 2, 1, 1, 2, 2, 1, 0,
                          GridBagConstraints.HORIZONTAL,
                          GridBagConstraints.LINE_START,
                          new Insets(4, 5, 0, 30));

    Dialog.addGBComponent(dummyPanel, connPanel,
                          0, 0, 1, GridBagConstraints.REMAINDER, 0, 0, 1, 1,
                          GridBagConstraints.HORIZONTAL,
                          GridBagConstraints.PAGE_START,
                          new Insets(4, 4, 4, 4));

    // Global tab
    globalPanel = new JPanel(new GridBagLayout());

    clearHistoryButton = new JButton("Clear the connection history");
    clearHistoryButton.addActionListener(this);
    deleteOptionsButton = new JButton("Delete saved options for all hosts");
    deleteOptionsButton.addActionListener(this);
    resetButton = new JButton("Reset all options to defaults");
    resetButton.addActionListener(this);

    Dialog.addGBComponent(clearHistoryButton, globalPanel,
                          0, 0, 2, 1, 2, 2, 1, 0,
                          GridBagConstraints.NONE,
                          GridBagConstraints.FIRST_LINE_START,
                          new Insets(8, 5, 0, 5));
    Dialog.addGBComponent(deleteOptionsButton, globalPanel,
                          0, 1, 2, 1, 2, 2, 1, 0,
                          GridBagConstraints.NONE,
                          GridBagConstraints.FIRST_LINE_START,
                          new Insets(8, 5, 0, 5));
    Dialog.addGBComponent(resetButton, globalPanel,
                          0, 2, 2, GridBagConstraints.REMAINDER, 2, 2, 1, 1,
                          GridBagConstraints.NONE,
                          GridBagConstraints.FIRST_LINE_START,
                          new Insets(8, 5, 0, 5));

    // Security tab
    secPanel = new JPanel(new GridBagLayout());

    JPanel secTypesPanel = new JPanel(new GridBagLayout());
    secTypesPanel.setBorder(
      BorderFactory.createTitledBorder("Security types"));

    encNonePanel = new JPanel(new GridBagLayout());
    Border border = BorderFactory.createLineBorder(Color.LIGHT_GRAY);
    TitledBorder tb = BorderFactory.createTitledBorder(border, "No encryption",
      TitledBorder.CENTER, TitledBorder.TOP);
    encNonePanel.setBorder(tb);

    secNone = addJCheckBox("No authentication", null, encNonePanel,
                           new GridBagConstraints(0, 0, 1, 1, 1, 1,
                             GridBagConstraints.LINE_START,
                             GridBagConstraints.NONE,
                             new Insets(0, 0, 0, 5), 0, 0));
    secVnc = addJCheckBox("Standard VNC", null, encNonePanel,
                          new GridBagConstraints(0, 1, 1, 1, 1, 1,
                            GridBagConstraints.LINE_START,
                            GridBagConstraints.NONE,
                            new Insets(0, 0, 0, 5), 0, 0));
    secPlain = addJCheckBox("Plain (VeNCrypt)", null, encNonePanel,
                            new GridBagConstraints(1, 0, 1, 1, 1, 1,
                              GridBagConstraints.LINE_START,
                              GridBagConstraints.NONE,
                              new Insets(0, 0, 0, 5), 0, 0));
    secUnixLogin = addJCheckBox("Unix Login (TightVNC/TurboVNC)", null,
                                encNonePanel,
                                new GridBagConstraints(1, 1, 1, 1, 1, 1,
                                  GridBagConstraints.LINE_START,
                                  GridBagConstraints.NONE,
                                  new Insets(0, 0, 0, 5), 0, 0));

    encTLSPanel = new JPanel(new GridBagLayout());
    border = BorderFactory.createLineBorder(Color.LIGHT_GRAY);
    tb = BorderFactory.createTitledBorder(border,
      "Anonymous TLS encryption (VeNCrypt)", TitledBorder.CENTER,
      TitledBorder.TOP);
    encTLSPanel.setBorder(tb);

    secTLSNone = addJCheckBox("No authentication", null, encTLSPanel,
                              new GridBagConstraints(0, 0, 1, 1, 1, 1,
                                GridBagConstraints.LINE_START,
                                GridBagConstraints.NONE,
                                new Insets(0, 0, 0, 5), 0, 0));
    secTLSVnc = addJCheckBox("Standard VNC", null, encTLSPanel,
                             new GridBagConstraints(0, 1, 1, 1, 1, 1,
                               GridBagConstraints.LINE_START,
                               GridBagConstraints.NONE,
                               new Insets(0, 0, 0, 5), 0, 0));
    secTLSPlain = addJCheckBox("Plain", null, encTLSPanel,
                               new GridBagConstraints(1, 0, 1, 1, 1, 1,
                                 GridBagConstraints.LINE_START,
                                 GridBagConstraints.NONE,
                                 new Insets(0, 0, 0, 5), 0, 0));

    encX509Panel = new JPanel(new GridBagLayout());
    border = BorderFactory.createLineBorder(Color.LIGHT_GRAY);
    tb = BorderFactory.createTitledBorder(border,
      "TLS encryption with X.509 certificates (VeNCrypt)",
      TitledBorder.CENTER, TitledBorder.TOP);
    encX509Panel.setBorder(tb);

    secX509None = addJCheckBox("No authentication", null, encX509Panel,
                               new GridBagConstraints(0, 0, 1, 1, 1, 1,
                                 GridBagConstraints.LINE_START,
                                 GridBagConstraints.NONE,
                                 new Insets(0, 0, 0, 5), 0, 0));
    secX509Vnc = addJCheckBox("Standard VNC", null, encX509Panel,
                              new GridBagConstraints(0, 1, 1, 1, 1, 1,
                                GridBagConstraints.LINE_START,
                                GridBagConstraints.NONE,
                                new Insets(0, 0, 0, 5), 0, 0));
    secX509Plain = addJCheckBox("Plain", null, encX509Panel,
                                new GridBagConstraints(1, 0, 1, 1, 1, 1,
                                  GridBagConstraints.LINE_START,
                                  GridBagConstraints.NONE,
                                  new Insets(0, 0, 0, 5), 0, 0));

    Dialog.addGBComponent(encNonePanel, secTypesPanel,
                          0, 0, 1, 1, 2, 2, 1, 0,
                          GridBagConstraints.HORIZONTAL,
                          GridBagConstraints.LINE_START,
                          new Insets(2, 10, 2, 5));
    Dialog.addGBComponent(encTLSPanel, secTypesPanel,
                          0, 1, 1, 1, 2, 2, 1, 1,
                          GridBagConstraints.HORIZONTAL,
                          GridBagConstraints.FIRST_LINE_START,
                          new Insets(2, 10, 2, 5));
    Dialog.addGBComponent(encX509Panel, secTypesPanel,
                          0, 2, 1, 1, 2, 2, 1, 1,
                          GridBagConstraints.HORIZONTAL,
                          GridBagConstraints.FIRST_LINE_START,
                          new Insets(2, 10, 2, 5));

    JPanel x509Panel = new JPanel(new GridBagLayout());
    x509Panel.setBorder(
      BorderFactory.createTitledBorder("X.509 certificate validation"));
    x509ca = new JTextField("", 1);
    x509caLabel = new JLabel("CA cert:");
    x509caButton = new JButton("Load");
    x509caButton.addActionListener(this);
    x509crl = new JTextField("", 1);
    x509crlLabel = new JLabel("CRL:");
    x509crlButton = new JButton("Load");
    x509crlButton.addActionListener(this);
    Dialog.addGBComponent(x509caLabel, x509Panel,
                          0, 0, 1, 1, 2, 2, 0, 0,
                          GridBagConstraints.NONE,
                          GridBagConstraints.FIRST_LINE_START,
                          new Insets(8, 8, 0, 2));
    Dialog.addGBComponent(x509ca, x509Panel,
                          1, 0, 1, 1, 2, 2, 0.7, 0,
                          GridBagConstraints.HORIZONTAL,
                          GridBagConstraints.FIRST_LINE_START,
                          new Insets(4, 2, 0, 2));
    Dialog.addGBComponent(x509caButton, x509Panel,
                          2, 0, 1, 1, 2, 2, 0, 0,
                          GridBagConstraints.NONE,
                          GridBagConstraints.FIRST_LINE_START,
                          new Insets(4, 2, 0, 2));
    Dialog.addGBComponent(x509crlLabel, x509Panel,
                          0, 1, 1, 1, 2, 2, 0, 0,
                          GridBagConstraints.NONE,
                          GridBagConstraints.FIRST_LINE_START,
                          new Insets(8, 8, 0, 2));
    Dialog.addGBComponent(x509crl, x509Panel,
                          1, 1, 1, 1, 2, 2, 0.7, 0,
                          GridBagConstraints.HORIZONTAL,
                          GridBagConstraints.FIRST_LINE_START,
                          new Insets(4, 2, 0, 2));
    Dialog.addGBComponent(x509crlButton, x509Panel,
                          2, 1, 1, 1, 2, 2, 0, 0,
                          GridBagConstraints.NONE,
                          GridBagConstraints.FIRST_LINE_START,
                          new Insets(4, 2, 0, 2));

    username = new JTextField("", 1);
    username.getDocument().addDocumentListener(this);
    usernameLabel = new JLabel("Username:");
    sendLocalUsername = new JCheckBox("Send local username");
    sendLocalUsername.addItemListener(this);

    JPanel sshPanel = new JPanel(new GridBagLayout());
    sshPanel.setBorder(BorderFactory.createTitledBorder("SSH tunneling"));
    jumpLabel =
      new JLabel("Tunnel VNC connection through specified SSH jump host");
    jumpLabel2 =
      new JLabel("([user@]host[:ssh_port]) and VNC host's SSH server");
    jump = new JTextField("", 1);
    filterWhitespace(jump);
    tunnel =
      new JCheckBox("Tunnel VNC connection through VNC host's SSH server");
    tunnel.addItemListener(this);

    Dialog.addGBComponent(jumpLabel, sshPanel,
                          0, 0, 1, 1, 0, 0, 1, 1,
                          GridBagConstraints.HORIZONTAL,
                          GridBagConstraints.CENTER,
                          new Insets(0, 5, 0, 5));
    Dialog.addGBComponent(jumpLabel2, sshPanel,
                          0, 1, 1, 1, 0, 0, 1, 1,
                          GridBagConstraints.HORIZONTAL,
                          GridBagConstraints.CENTER,
                          new Insets(0, 5, 0, 5));
    Dialog.addGBComponent(jump, sshPanel,
                          0, 2, 1, 1, 2, 2, 1, 0,
                          GridBagConstraints.HORIZONTAL,
                          GridBagConstraints.FIRST_LINE_START,
                          new Insets(4, 2, 0, 5));
    Dialog.addGBComponent(tunnel, sshPanel,
                          0, 3, 4, 1, 2, 2, 1, 1,
                          GridBagConstraints.HORIZONTAL,
                          GridBagConstraints.FIRST_LINE_START,
                          new Insets(4, 5, 0, 5));

    Dialog.addGBComponent(secTypesPanel, secPanel,
                          0, 0, 3, 1, 2, 2, 1, 0,
                          GridBagConstraints.HORIZONTAL,
                          GridBagConstraints.FIRST_LINE_START,
                          new Insets(8, 10, 2, 5));
    Dialog.addGBComponent(usernameLabel, secPanel,
                          0, 1, 1, 1, 0, 0, 0, 0,
                          GridBagConstraints.NONE,
                          GridBagConstraints.FIRST_LINE_START,
                          new Insets(8, 10, 0, 2));
    Dialog.addGBComponent(username, secPanel,
                          1, 1, 1, 1, 0, 0, 1, 0,
                          GridBagConstraints.HORIZONTAL,
                          GridBagConstraints.FIRST_LINE_START,
                          new Insets(4, 2, 0, 2));
    Dialog.addGBComponent(sendLocalUsername, secPanel,
                          2, 1, 1, 1, 0, 0, 0, 0,
                          GridBagConstraints.NONE,
                          GridBagConstraints.FIRST_LINE_END,
                          new Insets(4, 2, 0, 2));
    Dialog.addGBComponent(x509Panel, secPanel,
                          0, 2, 3, 1, 2, 2, 1, 1,
                          GridBagConstraints.HORIZONTAL,
                          GridBagConstraints.FIRST_LINE_START,
                          new Insets(2, 10, 2, 5));
    Dialog.addGBComponent(sshPanel, secPanel,
                          0, 3, 3, 1, 2, 2, 1, 1,
                          GridBagConstraints.HORIZONTAL,
                          GridBagConstraints.FIRST_LINE_START,
                          new Insets(2, 10, 2, 5));

    tabPane.add(encodingPanel);
    tabPane.add(connPanel);
    tabPane.add(globalPanel);
    tabPane.add(secPanel);
    tabPane.addTab("Encoding", encodingPanel);
    tabPane.addTab("Connection", connPanel);
    tabPane.addTab("Global", globalPanel);
    tabPane.addTab("Security", secPanel);
    tabPane.setBorder(BorderFactory.createEmptyBorder(0, 0, 0, 0));

    okButton = new JButton("OK");
    okButton.setPreferredSize(new Dimension(90, 30));
    okButton.addActionListener(this);
    cancelButton = new JButton("Cancel");
    cancelButton.setPreferredSize(new Dimension(90, 30));
    cancelButton.addActionListener(this);

    buttonPane = new JPanel();
    buttonPane.setLayout(new BoxLayout(buttonPane, BoxLayout.LINE_AXIS));
    buttonPane.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
    buttonPane.add(Box.createHorizontalGlue());
    buttonPane.add(okButton);
    buttonPane.add(Box.createRigidArea(new Dimension(5, 0)));
    buttonPane.add(cancelButton);
    buttonPane.add(Box.createRigidArea(new Dimension(5, 0)));

    encMethodComboBox.setSelectedItem("Tight + Perceptually Lossless JPEG (LAN)");
  }

  public void setNode(String node_) {
    node = node_.replaceAll("[\\[\\]]", "");
  }

  public String getNode() { return node; }

  protected void populateDialog(JDialog dlg) {
    dlg.setResizable(false);
    String nodeString = "";
    if (node != null) {
      nodeString = (node.equalsIgnoreCase(".listen") ?
                    " (listen mode defaults)" : " (" + node + ")");
    }
    dlg.setTitle("TurboVNC Viewer Options" + nodeString);
    dlg.getContentPane().setLayout(
      new BoxLayout(dlg.getContentPane(), BoxLayout.PAGE_AXIS));
    dlg.getContentPane().add(tabPane);
    dlg.getContentPane().add(buttonPane);
    dlg.pack();

    dlg.addWindowListener(new WindowAdapter() {
      public void windowActivated(WindowEvent e) {
        if (callback != null) callback.setTightOptions();
      }
    });
  }

  public void initDialog() {
    if (callback != null) callback.setOptions();
    oldScalingFactor = scalingFactor.getSelectedItem().toString();
    oldDesktopSize = desktopSize.getSelectedItem().toString();
  }

  JRadioButton addRadioCheckbox(String str, ButtonGroup group, JPanel panel) {
    JRadioButton c = new JRadioButton(str);
    GridBagConstraints gbc = new GridBagConstraints();
    gbc.anchor = GridBagConstraints.LINE_START;
    gbc.gridwidth = GridBagConstraints.REMAINDER;
    gbc.weightx = 1;
    gbc.weighty = 1;
    panel.add(c, gbc);
    group.add(c);
    c.addItemListener(this);
    return c;
  }

  JCheckBox addCheckbox(String str, ButtonGroup group, JPanel panel) {
    JCheckBox c = new JCheckBox(str);
    GridBagConstraints gbc = new GridBagConstraints();
    gbc.anchor = GridBagConstraints.LINE_START;
    gbc.gridwidth = GridBagConstraints.REMAINDER;
    gbc.weightx = 1;
    gbc.weighty = 1;
    panel.add(c, gbc);
    if (group != null)
      group.add(c);
    c.addItemListener(this);
    return c;
  }

  JCheckBox addJCheckBox(String str, ButtonGroup group, JPanel panel,
      GridBagConstraints gbc) {
    JCheckBox c = new JCheckBox(str);
    panel.add(c, gbc);
    if (group != null)
      group.add(c);
    c.addItemListener(this);

    return c;
  }

  public void actionPerformed(ActionEvent e) {
    Object s = e.getSource();
    if (s instanceof JButton && (JButton)s == okButton) {
      if (callback != null) callback.getOptions();
      params.save(node);
      endDialog();
    } else if (s instanceof JButton && (JButton)s == cancelButton) {
      endDialog();
    } else if (s instanceof JButton && (JButton)s == clearHistoryButton) {
      UserPreferences.clearHistory();
    } else if (s instanceof JButton && (JButton)s == deleteOptionsButton) {
      UserPreferences.deleteAllOptions();
    } else if (s instanceof JButton && (JButton)s == resetButton) {
      Params oldParams = params;
      params = new Params();
      params.loadDefaults();
      setOptions(desktopSize.isEnabled(), !shared.isEnabled(), false, false);
      params = oldParams;
    } else if (s instanceof JButton && (JButton)s == x509caButton) {
      File file = new File(x509ca.getText());
      JFileChooser fc = new JFileChooser(file.getParent());
      fc.setSelectedFile(file);
      fc.setDialogTitle("Path to X.509 CA certificate");
      fc.setApproveButtonText("OK");
      fc.setFileHidingEnabled(false);
      int ret = fc.showOpenDialog(getJDialog());
      if (ret == JFileChooser.APPROVE_OPTION)
        x509ca.setText(fc.getSelectedFile().toString());
    } else if (s instanceof JButton && (JButton)s == x509crlButton) {
      File file = new File(x509crl.getText());
      JFileChooser fc = new JFileChooser(file.getParent());
      fc.setSelectedFile(file);
      fc.setDialogTitle("Path to X.509 Certificate Revocation List");
      fc.setApproveButtonText("OK");
      fc.setFileHidingEnabled(false);
      int ret = fc.showOpenDialog(getJDialog());
      if (ret == JFileChooser.APPROVE_OPTION)
        x509crl.setText(fc.getSelectedFile().toString());
    } else if (s instanceof JComboBox && (JComboBox)s == encMethodComboBox) {
      JComboBox comboBox = (JComboBox)e.getSource();
      String encMethod = (String)comboBox.getSelectedItem();
      if (!encMethodComboBox.isEnabled()) return;
      if (encMethod.equals("Tight + Perceptually Lossless JPEG (LAN)")) {
        jpeg.setSelected(true);
        subsamplingLevel.setValue(0);
        jpegQualityLevel.setValue(95);
        setCompressionLevel(1);
      } else if (encMethod.equals("Tight + Medium-Quality JPEG")) {
        jpeg.setSelected(true);
        subsamplingLevel.setValue(1);
        jpegQualityLevel.setValue(80);
        setCompressionLevel(6);
      } else if (encMethod.equals("Tight + Low-Quality JPEG (WAN)")) {
        jpeg.setSelected(true);
        subsamplingLevel.setValue(2);
        jpegQualityLevel.setValue(30);
        setCompressionLevel(7);
      } else if (encMethod.equals("Lossless Tight (Gigabit)")) {
        jpeg.setSelected(false);
        setCompressionLevel(0);
      } else if (encMethod.equals("Lossless Tight + Zlib (WAN)")) {
        jpeg.setSelected(false);
        setCompressionLevel(6);
      }
    }
  }

  public void itemStateChanged(ItemEvent e) {
    Object s = e.getSource();
    if (s instanceof JCheckBox && (JCheckBox)s == jpeg) {
      if (jpeg.isSelected()) {
        jpegQualityLevel.setEnabled(true);
        jpegQualityLabel.setEnabled(true);
        jpegQualityLabelLo.setEnabled(true);
        jpegQualityLabelHi.setEnabled(true);
        subsamplingLevel.setEnabled(true);
        subsamplingLabel.setEnabled(true);
        subsamplingLabelLo.setEnabled(true);
        subsamplingLabelHi.setEnabled(true);
      } else {
        jpegQualityLevel.setEnabled(false);
        jpegQualityLabel.setEnabled(false);
        jpegQualityLabelLo.setEnabled(false);
        jpegQualityLabelHi.setEnabled(false);
        subsamplingLevel.setEnabled(false);
        subsamplingLabel.setEnabled(false);
        subsamplingLabelLo.setEnabled(false);
        subsamplingLabelHi.setEnabled(false);
      }
      if (turboVNCServer.isSelected())
        setCompatibleGUI();
      setEncMethodComboBox();
    }
    if (s instanceof JCheckBox && (JCheckBox)s == interframe) {
      if (turboVNCServer.isSelected())
        setCompatibleGUI();
      setEncMethodComboBox();
    }
    if (s instanceof JCheckBox && (JCheckBox)s == turboVNCServer)
      setCompressionLevel(getCompressionLevel());
    if (s instanceof JCheckBox && (JCheckBox)s == secNone ||
        s instanceof JCheckBox && (JCheckBox)s == secVnc ||
        s instanceof JCheckBox && (JCheckBox)s == secPlain ||
        s instanceof JCheckBox && (JCheckBox)s == secUnixLogin ||
        s instanceof JCheckBox && (JCheckBox)s == secTLSNone ||
        s instanceof JCheckBox && (JCheckBox)s == secTLSVnc ||
        s instanceof JCheckBox && (JCheckBox)s == secTLSPlain ||
        s instanceof JCheckBox && (JCheckBox)s == secX509None ||
        s instanceof JCheckBox && (JCheckBox)s == secX509Vnc ||
        s instanceof JCheckBox && (JCheckBox)s == secX509Plain ||
        s instanceof JCheckBox && (JCheckBox)s == sendLocalUsername) {
      updateSecurityPanel();
    }
    if (s instanceof JComboBox && (JComboBox)s == scalingFactor) {
      String newScalingFactor = scalingFactor.getSelectedItem().toString();
      int sf = ScaleParameter.parse(newScalingFactor);
      if (sf == 0) {
        vlog.error("Bogus scaling factor");
        scalingFactor.setSelectedItem(oldScalingFactor);
      } else {
        String newsf;
        if (sf == ScaleParameter.AUTO)
          newsf = "Auto";
        else if (sf == ScaleParameter.FIXEDRATIO)
          newsf = "Fixed Aspect Ratio";
        else
          newsf = sf + "%";
        oldScalingFactor = newsf;
        if (!newsf.equals(newScalingFactor))
          scalingFactor.setSelectedItem(newsf);
        if ((sf == ScaleParameter.AUTO || sf == ScaleParameter.FIXEDRATIO) &&
          desktopSize.getSelectedItem().toString().equals("Auto"))
          desktopSize.setSelectedItem("Server");
        else
          desktopSize.setEnabled(callback.supportsSetDesktopSize());
      }
    }
    if (s instanceof JComboBox && (JComboBox)s == desktopSize) {
      String newDesktopSize = desktopSize.getSelectedItem().toString();
      DesktopSize size = DesktopSize.parse(newDesktopSize);
      if (size == null) {
        vlog.error("Bogus desktop size");
        desktopSize.setSelectedItem(oldDesktopSize);
      } else {
        String newsize = size.getString();
        oldDesktopSize = newsize;
        if (!newsize.equals(newDesktopSize))
          desktopSize.setSelectedItem(newsize);
        String sf = scalingFactor.getSelectedItem().toString();
        if (size.getMode() == DesktopSize.AUTO) {
          if (sf.equalsIgnoreCase("Fixed Aspect Ratio") ||
              sf.equalsIgnoreCase("Auto"))
            sf = "100%";
          scalingFactor.setModel(CB_MODEL_ADR);
        } else
          scalingFactor.setModel(CB_MODEL);
        scalingFactor.setSelectedItem(sf);
      }
    }
    if (s instanceof JCheckBox && (JCheckBox)s == tunnel) {
      jump.setEnabled(!tunnel.isSelected());
      jumpLabel.setEnabled(!tunnel.isSelected());
      jumpLabel2.setEnabled(!tunnel.isSelected());
    }
  }

  public void changedUpdate(DocumentEvent e) {
    if (e.getDocument() == username.getDocument())
      updateSecurityPanel();
  }

  public void insertUpdate(DocumentEvent e) {
    if (e.getDocument() == username.getDocument())
      updateSecurityPanel();
  }

  public void removeUpdate(DocumentEvent e) {
    if (e.getDocument() == username.getDocument())
      updateSecurityPanel();
  }

  private void setEncMethodComboBox() {
    if (!encMethodComboBox.isEnabled()) return;
    int level = getCompressionLevel();
    if (subsamplingLevel.getValue() == 0 && level == 1 &&
        jpegQualityLevel.getValue() == 95 && jpeg.isSelected()) {
      encMethodComboBox.setSelectedItem("Tight + Perceptually Lossless JPEG (LAN)");
      if (encMethodComboBox.getItemCount() > 5)
        encMethodComboBox.removeItem("Custom");
    } else if (subsamplingLevel.getValue() == 1 && level == 6 &&
               jpegQualityLevel.getValue() == 80 && jpeg.isSelected()) {
      encMethodComboBox.setSelectedItem("Tight + Medium-Quality JPEG");
      if (encMethodComboBox.getItemCount() > 5)
        encMethodComboBox.removeItem("Custom");
    } else if (subsamplingLevel.getValue() == 2 && level == 7 &&
               jpegQualityLevel.getValue() == 30 && jpeg.isSelected()) {
      encMethodComboBox.setSelectedItem("Tight + Low-Quality JPEG (WAN)");
      if (encMethodComboBox.getItemCount() > 5)
        encMethodComboBox.removeItem("Custom");
    } else if (level == 0 && !jpeg.isSelected()) {
      encMethodComboBox.setSelectedItem("Lossless Tight (Gigabit)");
      if (encMethodComboBox.getItemCount() > 5)
        encMethodComboBox.removeItem("Custom");
    } else if (level == 6 && !jpeg.isSelected()) {
      encMethodComboBox.setSelectedItem("Lossless Tight + Zlib (WAN)");
      if (encMethodComboBox.getItemCount() > 5)
        encMethodComboBox.removeItem("Custom");
    } else {
      if (encMethodComboBox.getItemCount() <= 5)
        encMethodComboBox.addItem("Custom");
      encMethodComboBox.setSelectedItem("Custom");
    }
  }

  public void stateChanged(ChangeEvent e) {
    Object s = e.getSource();
    if (s instanceof JSlider && (JSlider)s == subsamplingLevel) {
      subsamplingLabel.setText(subsamplingLabelString +
        subsamplingLabelTable.get(subsamplingLevel.getValue()));
      setEncMethodComboBox();
    } else if (s instanceof JSlider && (JSlider)s == jpegQualityLevel) {
      jpegQualityLabel.setText(jpegQualityLabelString +
        jpegQualityLevel.getValue());
      setEncMethodComboBox();
    } else if (s instanceof JSlider && (JSlider)s == compressionLevel) {
      setCompatibleGUI();
      setEncMethodComboBox();
    }
  }

  public int getSubsamplingLevel() {
    switch (subsamplingLevel.getValue()) {
      case 1:
        return SubsampParameter.TWOX;
      case 2:
        return SubsampParameter.FOURX;
      case 3:
        return SubsampParameter.GRAY;
    }
    return SubsampParameter.NONE;
  }

  boolean isTurboCompressionLevel(int level) {
    if (jpeg.isSelected() &&
        ((level >= 1 && level <= 2) || (level >= 6 && level <= 7)))
      return true;
    if (!jpeg.isSelected() &&
        ((level >= 0 && level <= 1) || (level >= 5 && level <= 6)))
      return true;
    return false;
  }

  void setCompatibleGUI() {
    String compressionLabelString;

    if (!turboVNCServer.isSelected()) {
      compressionLevel.setMinimum(0);
      compressionLevel.setMaximum(9);
      compressionLabelString = new String("Compression level: ");
    } else {
      if (jpeg.isSelected()) {
        compressionLevel.setMinimum(1);
        compressionLevel.setMaximum(2);
      } else {
        compressionLevel.setMinimum(0);
        compressionLevel.setMaximum(1);
      }
      compressionLabelString = new String("Compression level (see docs): ");
    }
    String clString = "";
    int cl = getCompressionLevel();
    if (turboVNCServer.isSelected()) {
      if (cl == 0 || cl == 5) clString = " [no zlib]";
      else if (cl == 1 || cl == 6) clString = " [minimal]";
      else if (cl == 2 || cl == 7) clString = " [medium]";
    } else {
      if (cl == 0) clString = " [none]";
      else if (cl == 1) clString = " [minimal]";
      else if (cl == 2) clString = " [medium]";
      else if (cl == 6) clString = " [maximum useful]";
    }
    if (cl == 9) clString = " [extreme]";
    compressionLabel.setText(compressionLabelString + cl + clString);
    interframe.setEnabled(turboVNCServer.isSelected());
  }

  void setCompressionLevel(int level) {
    boolean selectICE = false;
    setCompatibleGUI();
    if (turboVNCServer.isSelected() && interframe.isEnabled()) {
      if (level >= 5 && level <= 9) {
        if (level <= 8)
          level -= 5;
        selectICE = true;
      }
    }
    compressionLevel.setValue(level);
    interframe.setSelected(selectICE);
  }

  public int getCompressionLevel() {
    int level = compressionLevel.getValue();
    if (interframe.isEnabled() && interframe.isSelected() && level <= 3)
      level += 5;
    return level;
  }

  void setTightOptions(int encoding) {
    if (encoding != RFB.ENCODING_TIGHT) {
      jpeg.setEnabled(false);
      subsamplingLevel.setEnabled(false);
      subsamplingLabel.setEnabled(false);
      subsamplingLabelLo.setEnabled(false);
      subsamplingLabelHi.setEnabled(false);
      jpegQualityLevel.setMinimum(0);
      jpegQualityLevel.setMaximum(9);
      jpegQualityLevel.setMajorTickSpacing(1);
      jpegQualityLevel.setMinorTickSpacing(0);
      jpegQualityLevel.setSnapToTicks(true);
      jpegQualityLevel.setEnabled(true);
      jpegQualityLabelString = new String("Image quality level: ");
      jpegQualityLabel.setText(jpegQualityLabelString +
        jpegQualityLevel.getValue());
      jpegQualityLabel.setEnabled(true);
      jpegQualityLabelLo.setEnabled(true);
      jpegQualityLabelHi.setEnabled(true);
      encMethodComboBox.setEnabled(false);
      if (encMethodComboBox.getItemCount() > 5)
        encMethodComboBox.removeItemAt(5);
      encMethodComboBox.insertItemAt(RFB.encodingName(encoding), 5);
      encMethodComboBox.setSelectedItem(RFB.encodingName(encoding));
      encMethodLabel.setText("Encoding type:");
      encMethodLabel.setEnabled(false);
      turboVNCServer.setEnabled(false);
    }
  }

  private void updateSecurityPanel() {
    if (params.noUnixLogin.get()) {
      secPlain.setEnabled(false);
      secTLSPlain.setEnabled(false);
      secX509Plain.setEnabled(false);
      secUnixLogin.setEnabled(false);
      sendLocalUsername.setEnabled(false);
      usernameLabel.setEnabled(false);
      username.setEnabled(false);
    }

    boolean unixLogin =
      ((secPlain.isEnabled() && secPlain.isSelected()) ||
       (secTLSPlain.isEnabled() && secTLSPlain.isSelected()) ||
       (secX509Plain.isEnabled() && secX509Plain.isSelected()) ||
       (secUnixLogin.isEnabled() && secUnixLogin.isSelected()));
    sendLocalUsername.setEnabled(unixLogin);
    username.setEnabled(unixLogin && !sendLocalUsername.isSelected());
    usernameLabel.setEnabled(unixLogin && !sendLocalUsername.isSelected());

    boolean unixLoginForced =
      (sendLocalUsername.isEnabled() && sendLocalUsername.isSelected()) ||
      (username.isEnabled() && !username.getText().isEmpty());
    secNone.setEnabled(!unixLoginForced);
    secVnc.setEnabled(!unixLoginForced);
    secTLSNone.setEnabled(!unixLoginForced);
    secTLSVnc.setEnabled(!unixLoginForced);
    secX509None.setEnabled(!unixLoginForced && enableX509);
    secX509Vnc.setEnabled(!unixLoginForced && enableX509);

    boolean x509 = (secX509None.isEnabled() && secX509None.isSelected()) ||
      (secX509Vnc.isEnabled() && secX509Vnc.isSelected()) ||
      (secX509Plain.isEnabled() && secX509Plain.isSelected());
    x509ca.setEnabled(x509 && enableX509);
    x509caButton.setEnabled(x509 && enableX509);
    x509caLabel.setEnabled(x509 && enableX509);
    x509crl.setEnabled(x509 && enableX509);
    x509crlButton.setEnabled(x509 && enableX509);
    x509crlLabel.setEnabled(x509 && enableX509);
  }

  public void setX509Enabled(boolean enabled) {
    enableX509 = enabled;
    if (!enabled) {
      secX509None.setEnabled(false);
      secX509Vnc.setEnabled(false);
      secX509Plain.setEnabled(false);
      x509ca.setEnabled(false);
      x509caButton.setEnabled(false);
      x509caLabel.setEnabled(false);
      x509crl.setEnabled(false);
      x509crlButton.setEnabled(false);
      x509crlLabel.setEnabled(false);
    }
  }

  public void setOptions(boolean enableDesktopSize, boolean disableShared,
                         boolean disableSecurity, boolean disableSSH) {
    // Encoding
    jpeg.setSelected(params.jpeg.get());
    subsamplingLevel.setValue(params.subsampling.getOrdinal());
    jpegQualityLevel.setValue(params.quality.get());
    turboVNCServer.setSelected(!params.compatibleGUI.get() &&
      isTurboCompressionLevel(params.compressLevel.get()));
    setCompressionLevel(params.compressLevel.get());

    // Connection: Display
    if (params.scale.get() == ScaleParameter.AUTO) {
      scalingFactor.setSelectedItem("Auto");
    } else if (params.scale.get() == ScaleParameter.FIXEDRATIO) {
      scalingFactor.setSelectedItem("Fixed Aspect Ratio");
    } else {
      scalingFactor.setSelectedItem(params.scale.get() + "%");
    }

    desktopSize.setSelectedItem(params.desktopSize.getStr());
    fullScreen.setSelected(params.fullScreen.get());
    span.setSelectedIndex(params.span.get());
    acceptBell.setSelected(params.acceptBell.get());
    cursorShape.setSelected(params.cursorShape.get());
    showToolbar.setSelected(params.toolbar.get());

    // Connection: Input
    viewOnly.setSelected(params.viewOnly.get());
    reverseScroll.setSelected(params.reverseScroll.get());
    fsAltEnter.setSelected(params.fsAltEnter.get());
    String menuKeyStr = params.menuKey.getStr();
    if (menuKeyStr != null)
      menuKey.setSelectedItem(menuKeyStr);
    if (Utils.osGrab() && Helper.isAvailable())
      grabKeyboard.setSelectedIndex(params.grabKeyboard.get());

    // Connection: Restrictions
    shared.setSelected(params.shared.get());
    recvClipboard.setSelected(params.recvClipboard.get());
    sendClipboard.setSelected(params.sendClipboard.get());

    // Security: Security types
    secNone.setSelected(params.secTypes.isSupported(RFB.SECTYPE_NONE));
    secVnc.setSelected(params.secTypes.isSupported(RFB.SECTYPE_VNCAUTH));
    secPlain.setSelected(params.secTypes.isSupported(RFB.SECTYPE_PLAIN));
    secTLSNone.setSelected(params.secTypes.isSupported(RFB.SECTYPE_TLS_NONE));
    secTLSVnc.setSelected(params.secTypes.isSupported(RFB.SECTYPE_TLS_VNC));
    secTLSPlain.setSelected(
      params.secTypes.isSupported(RFB.SECTYPE_TLS_PLAIN));
    secX509None.setSelected(
      params.secTypes.isSupported(RFB.SECTYPE_X509_NONE));
    secX509Vnc.setSelected(params.secTypes.isSupported(RFB.SECTYPE_X509_VNC));
    secX509Plain.setSelected(
      params.secTypes.isSupported(RFB.SECTYPE_X509_PLAIN));
    secUnixLogin.setSelected(
      params.secTypes.isSupported(RFB.SECTYPE_UNIX_LOGIN));

    // Security
    username.setText(params.user.get());
    sendLocalUsername.setSelected(params.sendLocalUsername.get());

    // Security: X.509 certificate validation
    x509ca.setText(params.x509ca.get());
    x509crl.setText(params.x509crl.get());

    // Security: SSH tunneling
    jump.setText(params.jump.get());
    tunnel.setSelected(params.tunnel.get());

    desktopSize.setEnabled(enableDesktopSize);
    if (params.desktopSize.getMode() == DesktopSize.AUTO)
      scalingFactor.setModel(CB_MODEL_ADR);
    else
      scalingFactor.setModel(CB_MODEL);
    if (disableShared) shared.setEnabled(false);
    updateSecurityPanel();
    if (disableSecurity) {
      secNone.setEnabled(false);
      secVnc.setEnabled(false);
      secPlain.setEnabled(false);
      secUnixLogin.setEnabled(false);
      secTLSNone.setEnabled(false);
      secTLSVnc.setEnabled(false);
      secTLSPlain.setEnabled(false);
      secX509None.setEnabled(false);
      secX509Vnc.setEnabled(false);
      secX509Plain.setEnabled(false);
      username.setEnabled(false);
      usernameLabel.setEnabled(false);
      sendLocalUsername.setEnabled(false);
      x509ca.setEnabled(false);
      x509caButton.setEnabled(false);
      x509caLabel.setEnabled(false);
      x509crl.setEnabled(false);
      x509crlButton.setEnabled(false);
      x509crlLabel.setEnabled(false);
    }
    if (disableSSH) {
      jumpLabel.setEnabled(false);
      jumpLabel2.setEnabled(false);
      jump.setEnabled(false);
      tunnel.setEnabled(false);
    }
  }

  public void getOptions() {
    // Encoding
    params.jpeg.set(jpeg.isSelected());
    params.subsampling.set(getSubsamplingLevel());
    params.quality.set(jpegQualityLevel.getValue());
    params.compressLevel.set(getCompressionLevel());
    params.compatibleGUI.set(!turboVNCServer.isSelected());

    // Connection: Display
    params.scale.set(scalingFactor.getSelectedItem().toString());
    params.desktopSize.set(desktopSize.getSelectedItem().toString());
    params.fullScreen.set(fullScreen.isSelected());
    params.span.set(span.getSelectedIndex());
    params.acceptBell.set(acceptBell.isSelected());
    params.cursorShape.set(cursorShape.isSelected());
    params.toolbar.set(showToolbar.isSelected());

    // Connection: Input
    params.viewOnly.set(viewOnly.isSelected());
    params.reverseScroll.set(reverseScroll.isSelected());
    params.fsAltEnter.set(fsAltEnter.isSelected());
    params.menuKey.set(MenuKey.getSymbols()[menuKey.getSelectedIndex()].name);
    if (Utils.osGrab() && Helper.isAvailable())
      params.grabKeyboard.set(grabKeyboard.getSelectedIndex());

    // Connection: Restrictions
    params.shared.set(shared.isSelected());
    params.recvClipboard.set(recvClipboard.isSelected());
    params.sendClipboard.set(sendClipboard.isSelected());

    // Security
    params.user.set(username.getText().isEmpty() ? null : username.getText());
    params.sendLocalUsername.set(sendLocalUsername.isSelected());

    // Security: Security types
    params.secTypes.disable(RFB.SECTYPE_NONE);
    params.secTypes.disable(RFB.SECTYPE_VNCAUTH);
    params.secTypes.disable(RFB.SECTYPE_PLAIN);
    params.secTypes.disable(RFB.SECTYPE_TLS_NONE);
    params.secTypes.disable(RFB.SECTYPE_TLS_VNC);
    params.secTypes.disable(RFB.SECTYPE_TLS_PLAIN);
    params.secTypes.disable(RFB.SECTYPE_X509_NONE);
    params.secTypes.disable(RFB.SECTYPE_X509_VNC);
    params.secTypes.disable(RFB.SECTYPE_X509_PLAIN);
    params.secTypes.disable(RFB.SECTYPE_UNIX_LOGIN);

    if (secNone.isSelected())
      params.secTypes.enable(RFB.SECTYPE_NONE);
    if (secVnc.isSelected())
      params.secTypes.enable(RFB.SECTYPE_VNCAUTH);
    if (secPlain.isSelected())
      params.secTypes.enable(RFB.SECTYPE_PLAIN);
    if (secTLSNone.isSelected())
      params.secTypes.enable(RFB.SECTYPE_TLS_NONE);
    if (secTLSVnc.isSelected())
      params.secTypes.enable(RFB.SECTYPE_TLS_VNC);
    if (secTLSPlain.isSelected())
      params.secTypes.enable(RFB.SECTYPE_TLS_PLAIN);
    if (secX509None.isSelected())
      params.secTypes.enable(RFB.SECTYPE_X509_NONE);
    if (secX509Vnc.isSelected())
      params.secTypes.enable(RFB.SECTYPE_X509_VNC);
    if (secX509Plain.isSelected())
      params.secTypes.enable(RFB.SECTYPE_X509_PLAIN);
    if (secUnixLogin.isSelected())
      params.secTypes.enable(RFB.SECTYPE_UNIX_LOGIN);

    // Security: X.509 certificate validation
    params.x509ca.set(x509ca.getText().isEmpty() ? null : x509ca.getText());
    params.x509crl.set(x509crl.getText().isEmpty() ? null : x509crl.getText());

    // Security: SSH tunneling
    params.jump.set(jump.getText().isEmpty() ? null : jump.getText());
    params.tunnel.set(tunnel.isSelected());

    params.reconcile();
  }

}
