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This file is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

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The source code

/*
 *                 Sun Public License Notice
 *
 * The contents of this file are subject to the Sun Public License
 * Version 1.0 (the "License"). You may not use this file except in
 * compliance with the License. A copy of the License is available at
 * http://www.sun.com/
 *
 * The Original Code is NetBeans. The Initial Developer of the Original
 * Code is Sun Microsystems, Inc. Portions Copyright 1997-2004 Sun
 * Microsystems, Inc. All Rights Reserved.
 */

package org.netbeans.modules.project.ui;

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.beans.PropertyVetoException;
import java.io.IOException;
import java.text.Collator;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.Iterator;
import java.util.List;
import java.util.SortedSet;
import java.util.StringTokenizer;
import java.util.TreeSet;
import java.lang.reflect.InvocationTargetException;
import javax.swing.DefaultComboBoxModel;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.ListCellRenderer;
import javax.swing.SwingUtilities;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import org.netbeans.api.project.Project;
import org.netbeans.api.project.ProjectUtils;
import org.netbeans.spi.project.ui.RecommendedTemplates;
import org.netbeans.api.project.ProjectInformation;
import org.openide.ErrorManager;
import org.openide.explorer.ExplorerManager;
import org.openide.explorer.view.BeanTreeView;
import org.openide.filesystems.FileObject;
import org.openide.filesystems.Repository;
import org.openide.loaders.DataFolder;
import org.openide.loaders.DataObject;
import org.openide.loaders.DataObjectNotFoundException;
import org.openide.loaders.DataShadow;
import org.openide.nodes.Children;
import org.openide.nodes.FilterNode;
import org.openide.nodes.Node;
import org.openide.util.AsyncGUIJob;
import org.openide.util.NbBundle;
import org.openide.util.Utilities;

/** If you are looking for the non-GUI part of the panel please look
 * into new file wizard
 */

/**
 * Provides the GUI for the template chooser panel.
 * @author Jesse Glick
 */
final class TemplateChooserPanelGUI extends javax.swing.JPanel implements PropertyChangeListener, AsyncGUIJob {
    
    private static final ListCellRenderer PROJECT_CELL_RENDERER = new ProjectCellRenderer();
    
    /** prefered dimmension of the panels */
    private static final java.awt.Dimension PREF_DIM = new java.awt.Dimension (500, 340);
    
    // private final String[] recommendedTypes = null;
    private final List/**/ listeners = new ArrayList();

    //Templates folder root
    private FileObject templatesFolder;

    //GUI Builder
    private TemplatesPanelGUI.Builder builder;
    private Project project;
    private String category;
    private String template;
    private boolean isWarmUp = true;

    public TemplateChooserPanelGUI() {
        this.builder = new FileChooserBuilder ();
        initComponents();
        setPreferredSize( PREF_DIM );
        setName (org.openide.util.NbBundle.getMessage(TemplateChooserPanelGUI.class, "LBL_TemplateChooserPanelGUI_Name")); // NOI18N
        Utilities.attachInitJob (this, this);
     }


    public void readValues (Project p, String category, String template) {
        assert p != null : "Project can not be null";   //NOI18N
        boolean wf;
        synchronized (this) {
            this.project = p;
            this.category = category;
            this.template = template;
            wf = this.isWarmUp;
        }
        if (!wf) {
            this.selectProject ( project );
            ((TemplatesPanelGUI)this.templatesPanel).setSelectedCategoryByName (this.category);
            ((TemplatesPanelGUI)this.templatesPanel).setSelectedTemplateByName (this.template);
        }
    }

    /** Called from readSettings, to initialize the GUI with proper components
     */
    private void initValues( Project p ) {
        // Populate the combo box with list of projects
        Project openProjects[] = OpenProjectList.getDefault().getOpenProjects();
        Arrays.sort( openProjects, OpenProjectList.PROJECT_BY_DISPLAYNAME );
        DefaultComboBoxModel projectsModel = new DefaultComboBoxModel( openProjects );
        projectsComboBox.setModel( projectsModel );
        this.selectProject (p);
    }

    private void selectProject (Project p) {
        if (p != null) {
            DefaultComboBoxModel projectsModel = (DefaultComboBoxModel) projectsComboBox.getModel ();
            if ( projectsModel.getIndexOf( p ) == -1 ) {
                projectsModel.insertElementAt( p, 0 );
            }
            projectsComboBox.setSelectedItem( p );
        }
    }


    public synchronized void addChangeListener(ChangeListener l) {
        listeners.add(l);
    }
    
    public synchronized void removeChangeListener(ChangeListener l) {
        listeners.remove(l);
    }
    
    private void fireChange() {
        ChangeEvent e = new ChangeEvent(this);
        List templist;
        synchronized (this) {
            templist = new ArrayList (listeners);
        }
        Iterator it = templist.iterator();
        while (it.hasNext()) {
            ((ChangeListener)it.next()).stateChanged(e);
        }
    }
    
    
    public Project getProject() {
        boolean wf;
        synchronized (this) {
            wf = isWarmUp;
        }
        if (wf) {
            return this.project;
        }
        else {
            return (Project)projectsComboBox.getSelectedItem();
        }
    }
    
    public FileObject getTemplate() {
        return ((TemplatesPanelGUI)this.templatesPanel).getSelectedTemplate ();
    }
    
    public void propertyChange(PropertyChangeEvent evt) {
        fireChange();
    }
    
    
    public java.awt.Dimension getPreferredSize() {
        return PREF_DIM;
    }
    
    public String getCategoryName () {
        return ((TemplatesPanelGUI)this.templatesPanel).getSelectedCategoryName ();
    }

    public String getTemplateName () {
        return ((TemplatesPanelGUI)this.templatesPanel).getSelectedTemplateName ();
    }

    public void setCategory (String category) {
        ((TemplatesPanelGUI)this.templatesPanel).setSelectedCategoryByName (category);
    }
    
    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    private void initComponents() {//GEN-BEGIN:initComponents
        java.awt.GridBagConstraints gridBagConstraints;

        jLabel1 = new javax.swing.JLabel();
        projectsComboBox = new javax.swing.JComboBox();
        templatesPanel = new TemplatesPanelGUI (this.builder);

        setLayout(new java.awt.GridBagLayout());

        jLabel1.setDisplayedMnemonic(org.openide.util.NbBundle.getMessage(TemplateChooserPanelGUI.class, "MNE_TemplateChooserPanelGUI_jLabel1").charAt(0));
        jLabel1.setLabelFor(projectsComboBox);
        jLabel1.setText(org.openide.util.NbBundle.getMessage(TemplateChooserPanelGUI.class, "LBL_TemplateChooserPanelGUI_jLabel1"));
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.insets = new java.awt.Insets(0, 0, 13, 0);
        add(jLabel1, gridBagConstraints);
        jLabel1.getAccessibleContext().setAccessibleName(org.openide.util.NbBundle.getMessage(TemplateChooserPanelGUI.class, "ACSN_jLabel1"));
        jLabel1.getAccessibleContext().setAccessibleDescription(org.openide.util.NbBundle.getMessage(TemplateChooserPanelGUI.class, "ACSD_jLabel1"));

        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
        gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
        gridBagConstraints.weightx = 1.0;
        gridBagConstraints.insets = new java.awt.Insets(0, 6, 12, 0);
        add(projectsComboBox, gridBagConstraints);

        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
        gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
        gridBagConstraints.weightx = 1.0;
        gridBagConstraints.weighty = 1.0;
        add(templatesPanel, gridBagConstraints);

    }//GEN-END:initComponents

    
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JLabel jLabel1;
    private javax.swing.JComboBox projectsComboBox;
    private javax.swing.JPanel templatesPanel;
    // End of variables declaration//GEN-END:variables
    
    // private static final Comparator NATURAL_NAME_SORT = Collator.getInstance();
    
    private final class TemplateChildren extends Children.Keys/**/ implements ActionListener {
        
        private final DataFolder folder;
        
        TemplateChildren(DataFolder folder) {
            this.folder = folder;
        }
        
        protected void addNotify() {
            super.addNotify();
            projectsComboBox.addActionListener( this );
            updateKeys();
        }
        
        protected void removeNotify() {
            setKeys(Collections.EMPTY_SET);
            projectsComboBox.removeActionListener( this );
            super.removeNotify();
        }
        
        private void updateKeys() {
            List l = new ArrayList();
            DataObject[] kids = folder.getChildren();
            for (int i = 0; i < kids.length; i++) {
                DataObject d = kids[i];
                FileObject prim = d.getPrimaryFile();
                if ( acceptTemplate( d, prim ) ) {
                    // has children?
                    if (hasChildren ((Project)projectsComboBox.getSelectedItem (), d)) {
                        l.add(d);
                    }
                }
            }
            setKeys(l);
        }
        
        protected Node[] createNodes(Object key) {
            DataFolder d = (DataFolder)key;
            DataObject[] chlds = d.getChildren();
            int state = 0;
            for (int i=0; i 0;
        
    }
    
    public void construct () {
        this.templatesFolder = Repository.getDefault().getDefaultFileSystem().findResource("Templates");
        ((TemplatesPanelGUI)this.templatesPanel).warmUp(this.templatesFolder);
    }
    
    public void finished () {
        //In the awt
        Cursor cursor = null;
        try {
            Project p;
            String c,t;
            synchronized (this) {
                p = this.project;
                c = this.category;
                t = this.template;
            }
            cursor = TemplateChooserPanelGUI.this.getCursor();
            TemplateChooserPanelGUI.this.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
            projectsComboBox.setRenderer( PROJECT_CELL_RENDERER );
            initValues( p );
            ((TemplatesPanelGUI)this.templatesPanel).doFinished (this.templatesFolder, c, t);
        } finally {
            synchronized (this) {
                isWarmUp = false;
            }
            if (cursor != null) {
                this.setCursor (cursor);
            }
        }
    }
    
}
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