--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/viewer_swing/java/com/glavsoft/viewer/swing/ModifierButtonEventListener.java	Tue Jul 03 13:20:49 2012 +0900
@@ -0,0 +1,44 @@
+// Copyright (C) 2010, 2011 GlavSoft LLC.
+// All rights reserved.
+//
+//-------------------------------------------------------------------------
+// This file is part of the TightVNC software.  Please visit our Web site:
+//
+//                       http://www.tightvnc.com/
+//
+// This program 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 program 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 program; if not, write to the Free Software Foundation, Inc.,
+// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+//-------------------------------------------------------------------------
+//
+
+package com.glavsoft.viewer.swing;
+
+import java.awt.event.KeyEvent;
+import java.util.HashMap;
+import java.util.Map;
+
+import javax.swing.JToggleButton;
+
+public class ModifierButtonEventListener {
+	Map<Integer, JToggleButton> buttons = new HashMap<Integer, JToggleButton>();
+	public void addButton(int keyCode, JToggleButton button) {
+		buttons.put(keyCode, button);
+	}
+	public void fireEvent(KeyEvent e) {
+		int code = e.getKeyCode();
+		if (buttons.containsKey(code)) {
+			buttons.get(code).setSelected(e.getID() == KeyEvent.KEY_PRESSED);
+		}
+	}
+}
\ No newline at end of file