/**

  * Copyright 2008 WebPhotos

  *

  * Licensed under the Apache License, Version 2.0 (the "License");

  * you may not use this file except in compliance with the License.

  * You may obtain a copy of the License at

  *

  *      http://www.apache.org/licenses/LICENSE-2.0

  *

  * Unless required by applicable law or agreed to in writing, software

  * distributed under the License is distributed on an "AS IS" BASIS,

  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  * See the License for the specific language governing permissions and

  * limitations under the License.

  */

 package net.sf.webphotos.netbeans.project.empty;

 import java.awt.Component;

 import java.util.HashSet;

 import java.util.Set;

 import javax.swing.event.ChangeEvent;

 import javax.swing.event.ChangeListener;

 import net.sf.webphotos.netbeans.project.Constants.ProjectFactory;

 import org.openide.WizardDescriptor;

 import org.openide.WizardValidationException;

 import org.openide.util.HelpCtx;

 import org.openide.util.NbBundle;

 /**

  * Panel just asking for basic info.

  */

 public class EmptyWebPhotosProjectWizardPanel implements WizardDescriptor.Panel,

         WizardDescriptor.ValidatingPanel, WizardDescriptor.FinishablePanel {

     private WizardDescriptor wizardDescriptor;

     private EmptyWebPhotosProjectPanelVisual component;

     public EmptyWebPhotosProjectWizardPanel() {

     }

     @Override

     public Component getComponent() {

         if (component == null) {

             component = new EmptyWebPhotosProjectPanelVisual(this);

             component.setName(NbBundle.getMessage(EmptyWebPhotosProjectWizardPanel.class, "LBL_CreateProjectStep"));

         }

         return component;

     }

     @Override

     public HelpCtx getHelp() {

         return new HelpCtx(ProjectFactory.EMPTY_WEBPHOTOS_PROJECT_WIZARD_PANEL);

     }

     @Override

     public boolean isValid() {

         getComponent();

         return component.valid(wizardDescriptor);

     }

     private final Set<ChangeListener> listeners = new HashSet<ChangeListener>(1); // or can use ChangeSupport in NB 6.0

     @Override

     public final void addChangeListener(ChangeListener l) {

         synchronized (listeners) {

             listeners.add(l);

         }

     }

     @Override

     public final void removeChangeListener(ChangeListener l) {

         synchronized (listeners) {

             listeners.remove(l);

         }

     }

     protected final void fireChangeEvent() {

         Set<ChangeListener> ls;

         synchronized (listeners) {

             ls = new HashSet<ChangeListener>(listeners);

         }

         ChangeEvent ev = new ChangeEvent(this);

         for (ChangeListener l : ls) {

             l.stateChanged(ev);

         }

     }

     @Override

     public void readSettings(Object settings) {

         wizardDescriptor = (WizardDescriptor) settings;

         component.read(wizardDescriptor);

     }

     @Override

     public void storeSettings(Object settings) {

         WizardDescriptor d = (WizardDescriptor) settings;

         component.store(d);

     }

     @Override

     public boolean isFinishPanel() {

         return true;

     }

     @Override

     public void validate() throws WizardValidationException {

         getComponent();

         component.validate(wizardDescriptor);

     }

 }