001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common
008: * Development and Distribution License("CDDL") (collectively, the
009: * "License"). You may not use this file except in compliance with the
010: * License. You can obtain a copy of the License at
011: * http://www.netbeans.org/cddl-gplv2.html
012: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013: * specific language governing permissions and limitations under the
014: * License. When distributing the software, include this License Header
015: * Notice in each file and include the License file at
016: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
017: * particular file as subject to the "Classpath" exception as provided
018: * by Sun in the GPL Version 2 section of the License file that
019: * accompanied this code. If applicable, add the following below the
020: * License Header, with the fields enclosed by brackets [] replaced by
021: * your own identifying information:
022: * "Portions Copyrighted [year] [name of copyright owner]"
023: *
024: * Contributor(s):
025: *
026: * The Original Software is NetBeans. The Initial Developer of the Original
027: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
028: * Microsystems, Inc. All Rights Reserved.
029: *
030: * If you wish your version of this file to be governed by only the CDDL
031: * or only the GPL Version 2, indicate your decision by adding
032: * "[Contributor] elects to include this software in this distribution
033: * under the [CDDL or GPL Version 2] license." If you do not indicate a
034: * single choice of license, a recipient has the option to distribute
035: * your version of this file under either the CDDL, the GPL Version 2 or
036: * to extend the choice of license to its licensees as provided above.
037: * However, if you add GPL Version 2 code and therefore, elected the GPL
038: * Version 2 license, then the option applies only if the new code is
039: * made subject to such option by the copyright holder.
040: */
041:
042: package org.netbeans.modules.projectimport.j2seimport.ui;
043:
044: import java.beans.PropertyChangeEvent;
045: import java.beans.PropertyChangeListener;
046: import javax.swing.event.ChangeEvent;
047: import javax.swing.event.ChangeListener;
048: import javax.swing.event.EventListenerList;
049: import org.openide.WizardDescriptor;
050: import org.openide.util.HelpCtx;
051: import org.openide.util.NbBundle;
052:
053: /**
054: * @author Martin Krauskopf, Radek Matous
055: */
056: public abstract class BasicWizardPanel implements
057: WizardDescriptor.Panel, PropertyChangeListener {
058:
059: private boolean valid = true;
060: private WizardDescriptor settings;
061:
062: private EventListenerList listeners = new EventListenerList();
063:
064: protected BasicWizardPanel(WizardDescriptor settings) {
065: this .settings = settings;
066: }
067:
068: public void setSettings(WizardDescriptor settings) {
069: this .settings = settings;
070: }
071:
072: protected WizardDescriptor getSettings() {
073: return settings;
074: }
075:
076: public void addChangeListener(ChangeListener l) {
077: listeners.add(ChangeListener.class, l);
078: }
079:
080: public void removeChangeListener(ChangeListener l) {
081: listeners.remove(ChangeListener.class, l);
082: }
083:
084: protected void fireChange() {
085: ChangeListener[] chListeners = (ChangeListener[]) listeners
086: .getListeners(ChangeListener.class);
087: ChangeEvent e = new ChangeEvent(this );
088: for (int i = 0; i < chListeners.length; i++) {
089: chListeners[i].stateChanged(e);
090: }
091: }
092:
093: public HelpCtx getHelp() {
094: return null;
095: }
096:
097: public void storeSettings(Object settings) {
098: }
099:
100: public void readSettings(Object settings) {
101: }
102:
103: public boolean isValid() {
104: return valid;
105: }
106:
107: /**
108: * Mainly for receiving events from wrapped component about its validity.
109: * Firing events further to Wizard descriptor so it will reread this panel's
110: * state and reenable/redisable its next/prev/finish/... buttons.
111: */
112: public void propertyChange(PropertyChangeEvent evt) {
113: if ("valid".equals(evt.getPropertyName())) { // NOI18N
114: boolean nueValid = ((Boolean) evt.getNewValue())
115: .booleanValue();
116: if (nueValid != valid) {
117: valid = nueValid;
118: fireChange();
119: }
120: }
121: }
122: }
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