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  * Copyright 2008 Sun Microsystems, Inc. All rights reserved.

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  * particular file as subject to the "Classpath" exception as provided

  * by Sun in the GPL Version 2 section of the License file that

  * accompanied this code. If applicable, add the following below the

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 package org.netbeans.modules.ada.project.ui;

 import java.util.Enumeration;

 import java.util.LinkedList;

 import java.util.List;

 import javax.swing.DefaultListModel;

 import javax.swing.JButton;

 import javax.swing.JPanel;

 import javax.swing.SwingUtilities;

 import org.netbeans.modules.ada.project.AdaMimeResolver;

 import org.openide.filesystems.FileObject;

 import org.openide.filesystems.FileUtil;

 import org.openide.util.NbBundle;

 import org.openide.util.RequestProcessor;

 /**

  *

  * @author  Andrea Lucarelli

  */

 final class MainModuleChooser extends JPanel {

     private final FileObject[] roots;

     private final JButton okButton;

     private final static RequestProcessor RP = new RequestProcessor("MainModuleChooser");   //NOI18N

     /** Creates new form MainClassChooser */

     MainModuleChooser (final FileObject[] roots, final JButton okButton) {

         assert roots != null;

         assert okButton != null;

         this.roots = roots;        

         initComponents();

         this.okButton = okButton;

         this.okButton.setEnabled(false);

         ((DefaultListModel)this.mainModules.getModel()).addElement(NbBundle.getMessage(MainModuleChooser.class, "TXT_PleaseWait"));

         RP.post(new Runnable() {

             public void run() {

                 initData();

             }

         });        

     }

     public String getMainModule () {

         return (String) mainModules.getSelectedValue();

     }

     private void initData () {

         final List<String> data = new LinkedList<String>();

         for (FileObject root : roots) {

             final Enumeration<? extends FileObject> fos = root.getChildren(true);

             while (fos.hasMoreElements()) {

                 final FileObject fo = fos.nextElement();

                 if (isAda (fo)) {

                     data.add(FileUtil.getRelativePath(root, fo));

                 }

             }

         }

         SwingUtilities.invokeLater(new Runnable() {

             public void run() {

                 DefaultListModel lm = (DefaultListModel)mainModules.getModel();

                 lm.clear();

                 for (String s : data) {

                     lm.addElement(s);

                 }

                 okButton.setEnabled(true);

             }

         });        

     }

     private static boolean isAda (final FileObject fo) {

         if (fo.isFolder() || !fo.isValid() || fo.isVirtual()) {

             return false;

         }

         return AdaMimeResolver.ADA_MIME_TYPE.equals(FileUtil.getMIMEType(fo));

     }

     /** 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.

      */

     @SuppressWarnings("unchecked")

     // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents

     private void initComponents() {

         java.awt.GridBagConstraints gridBagConstraints;

         jLabel1 = new javax.swing.JLabel();

         jScrollPane1 = new javax.swing.JScrollPane();

         mainModules = new javax.swing.JList();

         setPreferredSize(new java.awt.Dimension(300, 300));

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

         jLabel1.setLabelFor(mainModules);

         org.openide.awt.Mnemonics.setLocalizedText(jLabel1, org.openide.util.NbBundle.getMessage(MainModuleChooser.class, "MainModuleChooser.jLabel1.text")); // NOI18N

         gridBagConstraints = new java.awt.GridBagConstraints();

         gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;

         gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;

         gridBagConstraints.anchor = java.awt.GridBagConstraints.NORTHWEST;

         gridBagConstraints.weightx = 1.0;

         gridBagConstraints.insets = new java.awt.Insets(12, 12, 0, 12);

         add(jLabel1, gridBagConstraints);

         mainModules.setModel(new DefaultListModel());

         jScrollPane1.setViewportView(mainModules);

         gridBagConstraints = new java.awt.GridBagConstraints();

         gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;

         gridBagConstraints.gridheight = java.awt.GridBagConstraints.REMAINDER;

         gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;

         gridBagConstraints.weightx = 1.0;

         gridBagConstraints.weighty = 1.0;

         gridBagConstraints.insets = new java.awt.Insets(12, 12, 12, 12);

         add(jScrollPane1, gridBagConstraints);

     }// </editor-fold>//GEN-END:initComponents

     // Variables declaration - do not modify//GEN-BEGIN:variables

     private javax.swing.JLabel jLabel1;

     private javax.swing.JScrollPane jScrollPane1;

     private javax.swing.JList mainModules;

     // End of variables declaration//GEN-END:variables

 }