| /* |
| * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code 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 |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package javax.swing.event; |
| |
| import java.util.EventObject; |
| |
| |
| /** |
| * Defines an event that encapsulates changes to a list. |
| * <p> |
| * <strong>Warning:</strong> |
| * Serialized objects of this class will not be compatible with |
| * future Swing releases. The current serialization support is |
| * appropriate for short term storage or RMI between applications running |
| * the same version of Swing. As of 1.4, support for long term storage |
| * of all JavaBeans™ |
| * has been added to the <code>java.beans</code> package. |
| * Please see {@link java.beans.XMLEncoder}. |
| * |
| * @author Hans Muller |
| */ |
| @SuppressWarnings("serial") |
| public class ListDataEvent extends EventObject |
| { |
| /** Identifies one or more changes in the lists contents. */ |
| public static final int CONTENTS_CHANGED = 0; |
| /** Identifies the addition of one or more contiguous items to the list */ |
| public static final int INTERVAL_ADDED = 1; |
| /** Identifies the removal of one or more contiguous items from the list */ |
| public static final int INTERVAL_REMOVED = 2; |
| |
| private int type; |
| private int index0; |
| private int index1; |
| |
| /** |
| * Returns the event type. The possible values are: |
| * <ul> |
| * <li> {@link #CONTENTS_CHANGED} |
| * <li> {@link #INTERVAL_ADDED} |
| * <li> {@link #INTERVAL_REMOVED} |
| * </ul> |
| * |
| * @return an int representing the type value |
| */ |
| public int getType() { return type; } |
| |
| /** |
| * Returns the lower index of the range. For a single |
| * element, this value is the same as that returned by {@link #getIndex1}. |
| |
| * |
| * @return an int representing the lower index value |
| */ |
| public int getIndex0() { return index0; } |
| /** |
| * Returns the upper index of the range. For a single |
| * element, this value is the same as that returned by {@link #getIndex0}. |
| * |
| * @return an int representing the upper index value |
| */ |
| public int getIndex1() { return index1; } |
| |
| /** |
| * Constructs a ListDataEvent object. If index0 is > |
| * index1, index0 and index1 will be swapped such that |
| * index0 will always be <= index1. |
| * |
| * @param source the source Object (typically <code>this</code>) |
| * @param type an int specifying {@link #CONTENTS_CHANGED}, |
| * {@link #INTERVAL_ADDED}, or {@link #INTERVAL_REMOVED} |
| * @param index0 one end of the new interval |
| * @param index1 the other end of the new interval |
| */ |
| public ListDataEvent(Object source, int type, int index0, int index1) { |
| super(source); |
| this.type = type; |
| this.index0 = Math.min(index0, index1); |
| this.index1 = Math.max(index0, index1); |
| } |
| |
| /** |
| * Returns a string representation of this ListDataEvent. This method |
| * is intended to be used only for debugging purposes, and the |
| * content and format of the returned string may vary between |
| * implementations. The returned string may be empty but may not |
| * be <code>null</code>. |
| * |
| * @since 1.4 |
| * @return a string representation of this ListDataEvent. |
| */ |
| public String toString() { |
| return getClass().getName() + |
| "[type=" + type + |
| ",index0=" + index0 + |
| ",index1=" + index1 + "]"; |
| } |
| } |