001 /* TextEvent.java -- event for text changes 002 Copyright (C) 1999, 2002, 2005 Free Software Foundation, Inc. 003 004 This file is part of GNU Classpath. 005 006 GNU Classpath is free software; you can redistribute it and/or modify 007 it under the terms of the GNU General Public License as published by 008 the Free Software Foundation; either version 2, or (at your option) 009 any later version. 010 011 GNU Classpath is distributed in the hope that it will be useful, but 012 WITHOUT ANY WARRANTY; without even the implied warranty of 013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014 General Public License for more details. 015 016 You should have received a copy of the GNU General Public License 017 along with GNU Classpath; see the file COPYING. If not, write to the 018 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 019 02110-1301 USA. 020 021 Linking this library statically or dynamically with other modules is 022 making a combined work based on this library. Thus, the terms and 023 conditions of the GNU General Public License cover the whole 024 combination. 025 026 As a special exception, the copyright holders of this library give you 027 permission to link this library with independent modules to produce an 028 executable, regardless of the license terms of these independent 029 modules, and to copy and distribute the resulting executable under 030 terms of your choice, provided that you also meet, for each linked 031 independent module, the terms and conditions of the license of that 032 module. An independent module is a module which is not derived from 033 or based on this library. If you modify this library, you may extend 034 this exception to your version of the library, but you are not 035 obligated to do so. If you do not wish to do so, delete this 036 exception statement from your version. */ 037 038 039 package java.awt.event; 040 041 import java.awt.AWTEvent; 042 import java.awt.TextComponent; 043 044 /** 045 * This event is generated when a text box changes contents. This is an 046 * abstraction that distills a large number of individual mouse or keyboard 047 * events into a simpler "text changed" event. 048 * 049 * @author Aaron M. Renn (arenn@urbanophile.com) 050 * @see TextComponent 051 * @see TextListener 052 * @since 1.1 053 * @status updated to 1.4 054 */ 055 public class TextEvent extends AWTEvent 056 { 057 /** 058 * Compatible with JDK 1.1+. 059 */ 060 private static final long serialVersionUID = 6269902291250941179L; 061 062 /** This is the first id in the range of event ids used by this class. */ 063 public static final int TEXT_FIRST = 900; 064 065 /** This is the last id in the range of event ids used by this class. */ 066 public static final int TEXT_LAST = 900; 067 068 /** This event id indicates that the text of an object has changed. */ 069 public static final int TEXT_VALUE_CHANGED = 900; 070 071 /** 072 * Initializes a new instance of <code>TextEvent</code> with the specified 073 * source and id. Note that an invalid id leads to unspecified results. 074 * 075 * @param source the (TextComponent) object that generated this event 076 * @param id the event id 077 * @throws IllegalArgumentException if source is null 078 */ 079 public TextEvent(Object source, int id) 080 { 081 super(source, id); 082 } 083 084 /** 085 * Returns a string identifying this event. This is "TEXT_VALUE_CHANGED". 086 * 087 * @return a string identifying this event 088 */ 089 public String paramString() 090 { 091 return id == TEXT_VALUE_CHANGED ? "TEXT_VALUE_CHANGED" : "unknown type"; 092 } 093 } // class TextEvent