--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/treeVnc/AuthPanel.java	Tue Feb 21 04:10:12 2012 +0900
@@ -0,0 +1,121 @@
+package treeVnc;
+//
+//  Copyright (C) 1999 AT&T Laboratories Cambridge.  All Rights Reserved.
+//  Copyright (C) 2002-2006 Constantin Kaplinsky.  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., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+//  USA.
+//
+
+import java.awt.*;
+import java.awt.event.*;
+
+//
+// The panel which implements the user authentication scheme
+//
+
+class AuthPanel extends Panel implements ActionListener {
+
+  /**
+	 * 
+	 */
+	private static final long serialVersionUID = 1L;
+TextField passwordField;
+  Button okButton;
+
+  //
+  // Constructor.
+  //
+
+  public AuthPanel(VncViewer viewer)
+  {
+    Label titleLabel = new Label("VNC Authentication", Label.CENTER);
+    titleLabel.setFont(new Font("Helvetica", Font.BOLD, 18));
+
+    Label promptLabel = new Label("Password:", Label.CENTER);
+
+    passwordField = new TextField(10);
+    passwordField.setForeground(Color.black);
+    passwordField.setBackground(Color.white);
+    passwordField.setEchoChar('*');
+
+    okButton = new Button("OK");
+
+    GridBagLayout gridbag = new GridBagLayout();
+    GridBagConstraints gbc = new GridBagConstraints();
+
+    setLayout(gridbag);
+
+    gbc.gridwidth = GridBagConstraints.REMAINDER;
+    gbc.insets = new Insets(0,0,20,0);
+    gridbag.setConstraints(titleLabel,gbc);
+    add(titleLabel);
+
+    gbc.fill = GridBagConstraints.NONE;
+    gbc.gridwidth = 1;
+    gbc.insets = new Insets(0,0,0,0);
+    gridbag.setConstraints(promptLabel,gbc);
+    add(promptLabel);
+
+    gridbag.setConstraints(passwordField,gbc);
+    add(passwordField);
+    passwordField.addActionListener(this);
+
+    // gbc.ipady = 10;
+    gbc.gridwidth = GridBagConstraints.REMAINDER;
+    gbc.fill = GridBagConstraints.BOTH;
+    gbc.insets = new Insets(0,20,0,0);
+    gbc.ipadx = 30;
+    gridbag.setConstraints(okButton,gbc);
+    add(okButton);
+    okButton.addActionListener(this);
+  }
+
+  //
+  // Move keyboard focus to the default object, that is, the password
+  // text field.
+  //
+
+  public void moveFocusToDefaultField()
+  {
+    passwordField.requestFocus();
+  }
+
+  //
+  // This method is called when a button is pressed or return is
+  // pressed in the password text field.
+  //
+
+  public synchronized void actionPerformed(ActionEvent evt)
+  {
+    if (evt.getSource() == passwordField || evt.getSource() == okButton) {
+      passwordField.setEnabled(false);
+      notify();
+    }
+  }
+
+  //
+  // Wait for user entering a password, and return it as String.
+  //
+
+  public synchronized String getPassword() throws Exception
+  {
+    try {
+      wait();
+    } catch (InterruptedException e) { }
+    return passwordField.getText();
+  }
+
+}