001: /* ====================================================================
002: * The JRefactory License, Version 1.0
003: *
004: * Copyright (c) 2001 JRefactory. All rights reserved.
005: *
006: * Redistribution and use in source and binary forms, with or without
007: * modification, are permitted provided that the following conditions
008: * are met:
009: *
010: * 1. Redistributions of source code must retain the above copyright
011: * notice, this list of conditions and the following disclaimer.
012: *
013: * 2. Redistributions in binary form must reproduce the above copyright
014: * notice, this list of conditions and the following disclaimer in
015: * the documentation and/or other materials provided with the
016: * distribution.
017: *
018: * 3. The end-user documentation included with the redistribution,
019: * if any, must include the following acknowledgment:
020: * "This product includes software developed by the
021: * JRefactory (http://www.sourceforge.org/projects/jrefactory)."
022: * Alternately, this acknowledgment may appear in the software itself,
023: * if and wherever such third-party acknowledgments normally appear.
024: *
025: * 4. The names "JRefactory" must not be used to endorse or promote
026: * products derived from this software without prior written
027: * permission. For written permission, please contact seguin@acm.org.
028: *
029: * 5. Products derived from this software may not be called "JRefactory",
030: * nor may "JRefactory" appear in their name, without prior written
031: * permission of Chris Seguin.
032: *
033: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
034: * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
035: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
036: * DISCLAIMED. IN NO EVENT SHALL THE CHRIS SEGUIN OR
037: * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
038: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
039: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
040: * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
041: * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
042: * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
043: * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
044: * SUCH DAMAGE.
045: * ====================================================================
046: *
047: * This software consists of voluntary contributions made by many
048: * individuals on behalf of JRefactory. For more information on
049: * JRefactory, please see
050: * <http://www.sourceforge.org/projects/jrefactory>.
051: */
052: package org.acm.seguin.awt;
053:
054: import java.awt.event.ActionListener;
055: import java.awt.event.ActionEvent;
056: import javax.swing.JList;
057:
058: /**
059: * Adapter to move items around in the listbox
060: *
061: *@author Chris Seguin
062: *@created October 18, 2001
063: */
064: class MoveItemAdapter implements ActionListener {
065: private int direction;
066: private JList list;
067: private OrderableListModel olm;
068:
069: /**
070: * Constructor for the MoveItemAdapter object
071: *
072: *@param model the list model
073: *@param list the list
074: *@param direction the direction of movement
075: */
076: public MoveItemAdapter(OrderableListModel model, JList list,
077: int direction) {
078: olm = model;
079: this .list = list;
080: this .direction = direction;
081: }
082:
083: /**
084: * Swap the item's on the user's command
085: *
086: *@param evt the command to swap
087: */
088: public void actionPerformed(ActionEvent evt) {
089: int item = list.getSelectedIndex();
090: if (item == -1) {
091: return;
092: }
093:
094: int newPos = item + direction;
095: if ((newPos < 0) || (newPos >= olm.getSize())) {
096: return;
097: }
098:
099: olm.swap(item, newPos);
100:
101: list.setSelectedIndex(newPos);
102: }
103: }
104: // EOF
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