001: /* ====================================================================
002: * The QueryForm License, Version 1.1
003: *
004: * Copyright (c) 1998 - 2003 David F. Glasser. All rights
005: * reserved.
006: *
007: * Redistribution and use in source and binary forms, with or without
008: * modification, are permitted provided that the following conditions
009: * are met:
010: *
011: * 1. Redistributions of source code must retain the above copyright
012: * notice, this list of conditions and the following disclaimer.
013: *
014: * 2. Redistributions in binary form must reproduce the above copyright
015: * notice, this list of conditions and the following disclaimer in
016: * the documentation and/or other materials provided with the
017: * distribution.
018: *
019: * 3. The end-user documentation included with the redistribution,
020: * if any, must include the following acknowledgment:
021: * "This product includes software developed by
022: * David F. Glasser."
023: * Alternately, this acknowledgment may appear in the software itself,
024: * if and wherever such third-party acknowledgments normally appear.
025: *
026: * 4. The names "QueryForm" and "David F. Glasser" must
027: * not be used to endorse or promote products derived from this
028: * software without prior written permission. For written
029: * permission, please contact dglasser@pobox.com.
030: *
031: * 5. Products derived from this software may not be called "QueryForm",
032: * nor may "QueryForm" appear in their name, without prior written
033: * permission of David F. Glasser.
034: *
035: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
036: * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
037: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
038: * DISCLAIMED. IN NO EVENT SHALL DAVID F. GLASSER, THE APACHE SOFTWARE
039: * FOUNDATION OR ITS CONTRIBUTORS, OR ANY AUTHORS OR DISTRIBUTORS
040: * OF THIS SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
041: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
042: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
043: * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
044: * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
045: * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
046: * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
047: * SUCH DAMAGE.
048: * ====================================================================
049: *
050: * This product includes software developed by the
051: * Apache Software Foundation (http://www.apache.org/).
052: *
053: * ====================================================================
054: *
055: * $Source: /cvsroot/qform/qform/src/org/glasser/swing/ButtonClicker.java,v $
056: * $Revision: 1.2 $
057: * $Author: dglasser $
058: * $Date: 2003/06/08 19:30:20 $
059: *
060: * --------------------------------------------------------------------
061: */
062: package org.glasser.swing;
063:
064: import javax.swing.*;
065: import java.awt.event.*;
066:
067: /**
068: * An Action that calls doClick() on a JButton if it is enabled. It's useful for
069: * binding keystrokes to buttons without using mnemonics.
070: */
071: public class ButtonClicker extends AbstractAction {
072:
073: protected Action nestedAction = null;
074:
075: protected AbstractButton button = null;
076:
077: public ButtonClicker(AbstractButton button) {
078: if (button == null)
079: throw new IllegalArgumentException(
080: "Required argument missing.");
081: this .button = button;
082: }
083:
084: public void actionPerformed(ActionEvent e) {
085: if (button.isEnabled()) {
086: button.doClick();
087: } else if (nestedAction != null) {
088: nestedAction.actionPerformed(e);
089: }
090: }
091:
092: /**
093: * If a nested Action is set, any ActionEvents passed to the actionPerformed
094: * method of this Action will be forwarded to the nested Action if the button
095: * is in a disabled state.
096: */
097: public void setNestedAction(Action nestedAction) {
098: this .nestedAction = nestedAction;
099: }
100:
101: public Action getNestedAction() {
102: return nestedAction;
103: }
104:
105: }
|