Returns a unique text for a KeyEvent code - Java Swing

Java examples for Swing:Key Event

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Description

Returns a unique text for a KeyEvent code

Demo Code

/* $Id$// www.  j ava2  s .c o  m
 *****************************************************************************
 * Copyright (c) 2009 Contributors - see below
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    mvw
 *****************************************************************************
 *
 * Some portions of this file was previously release using the BSD License:
 */
//package com.java2s;

import java.awt.event.KeyEvent;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;

public class Main {
    /**
     * Returns a unique text for a KeyEvent code 
     * 
     * @param keyCode   the keyCode to be "translated"
     * @return          the corrisponding text for the keyCode 
     */
    public static String getKeyText(int keyCode) {
        int expectedModifiers = (Modifier.PUBLIC | Modifier.STATIC | Modifier.FINAL);

        Field[] fields = KeyEvent.class.getDeclaredFields();
        for (int i = 0; i < fields.length; i++) {
            try {
                if (fields[i].getModifiers() == expectedModifiers
                        && fields[i].getType() == Integer.TYPE
                        && fields[i].getName().startsWith("VK_")
                        && fields[i].getInt(KeyEvent.class) == keyCode) {

                    return fields[i].getName().substring(3);
                }
            } catch (IllegalAccessException e) {

            }
        }
        return "UNKNOWN";
    }
}

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