public void valueChanged(ListSelectionEvent evt) {
      if (!evt.getValueIsAdjusting()) {
        JFileChooser chooser = getFileChooser();
        FileSystemView fsv = chooser.getFileSystemView();
        JList list = (JList) evt.getSource();

        int fsm = chooser.getFileSelectionMode();
        boolean useSetDirectory = usesSingleFilePane && (fsm == JFileChooser.FILES_ONLY);

        if (chooser.isMultiSelectionEnabled()) {
          File[] files = null;
          Object[] objects = list.getSelectedValues();
          if (objects != null) {
            if (objects.length == 1
                && ((File) objects[0]).isDirectory()
                && chooser.isTraversable(((File) objects[0]))
                && (useSetDirectory || !fsv.isFileSystem(((File) objects[0])))) {
              setDirectorySelected(true);
              setDirectory(((File) objects[0]));
            } else {
              ArrayList<File> fList = new ArrayList<File>(objects.length);
              for (Object object : objects) {
                File f = (File) object;
                boolean isDir = f.isDirectory();
                if ((chooser.isFileSelectionEnabled() && !isDir)
                    || (chooser.isDirectorySelectionEnabled() && fsv.isFileSystem(f) && isDir)) {
                  fList.add(f);
                }
              }
              if (fList.size() > 0) {
                files = fList.toArray(new File[fList.size()]);
              }
              setDirectorySelected(false);
            }
          }
          chooser.setSelectedFiles(files);
        } else {
          File file = (File) list.getSelectedValue();
          if (file != null
              && file.isDirectory()
              && chooser.isTraversable(file)
              && (useSetDirectory || !fsv.isFileSystem(file))) {

            setDirectorySelected(true);
            setDirectory(file);
            if (usesSingleFilePane) {
              chooser.setSelectedFile(null);
            }
          } else {
            setDirectorySelected(false);
            if (file != null) {
              chooser.setSelectedFile(file);
            }
          }
        }
      }
    }
    public void actionPerformed(ActionEvent e) {
      if (readOnly) {
        return;
      }
      JFileChooser fc = getFileChooser();
      File currentDirectory = fc.getCurrentDirectory();

      if (!currentDirectory.exists()) {
        JOptionPane.showMessageDialog(
            fc,
            newFolderParentDoesntExistText,
            newFolderParentDoesntExistTitleText,
            JOptionPane.WARNING_MESSAGE);
        return;
      }

      File newFolder;
      try {
        newFolder = fc.getFileSystemView().createNewFolder(currentDirectory);
        if (fc.isMultiSelectionEnabled()) {
          fc.setSelectedFiles(new File[] {newFolder});
        } else {
          fc.setSelectedFile(newFolder);
        }
      } catch (IOException exc) {
        JOptionPane.showMessageDialog(
            fc,
            newFolderErrorText + newFolderErrorSeparator + exc,
            newFolderErrorText,
            JOptionPane.ERROR_MESSAGE);
        return;
      }

      fc.rescanCurrentDirectory();
    }
 // Get the name of the file
 private File getFileName(int option) {
   JFileChooser fc = new JFileChooser(new File(".."));
   if (oldFile != null) fc.setSelectedFile(oldFile);
   int returnVal = 0;
   if (option == UintahGui.OPEN) {
     returnVal = fc.showOpenDialog(UintahGui.this);
   } else {
     returnVal = fc.showSaveDialog(UintahGui.this);
   }
   if (returnVal == JFileChooser.APPROVE_OPTION) {
     File file = fc.getSelectedFile();
     oldFile = file;
     return file;
   } else return null;
 }
  public JFileChooser createFileChooser() {
    // create a filechooser
    JFileChooser fc = new JFileChooser();
    if (getSwingSet2() != null && getSwingSet2().isDragEnabled()) {
      fc.setDragEnabled(true);
    }

    // set the current directory to be the images directory
    File swingFile = new File("resources/images/About.jpg");
    if (swingFile.exists()) {
      fc.setCurrentDirectory(swingFile);
      fc.setSelectedFile(swingFile);
    }

    return fc;
  }
    public void actionPerformed(ActionEvent e) {
      if (isDirectorySelected()) {
        File dir = getDirectory();
        if (dir != null) {
          try {
            // Strip trailing ".."
            dir = ShellFolder.getNormalizedFile(dir);
          } catch (IOException ex) {
            // Ok, use f as is
          }
          changeDirectory(dir);
          return;
        }
      }

      JFileChooser chooser = getFileChooser();

      String filename = getFileName();
      FileSystemView fs = chooser.getFileSystemView();
      File dir = chooser.getCurrentDirectory();

      if (filename != null) {
        // Remove whitespaces from end of filename
        int i = filename.length() - 1;

        while (i >= 0 && filename.charAt(i) <= ' ') {
          i--;
        }

        filename = filename.substring(0, i + 1);
      }

      if (filename == null || filename.length() == 0) {
        // no file selected, multiple selection off, therefore cancel the approve action
        resetGlobFilter();
        return;
      }

      File selectedFile = null;
      File[] selectedFiles = null;

      // Unix: Resolve '~' to user's home directory
      if (File.separatorChar == '/') {
        if (filename.startsWith("~/")) {
          filename = System.getProperty("user.home") + filename.substring(1);
        } else if (filename.equals("~")) {
          filename = System.getProperty("user.home");
        }
      }

      if (chooser.isMultiSelectionEnabled()
          && filename.length() > 1
          && filename.charAt(0) == '"'
          && filename.charAt(filename.length() - 1) == '"') {
        List<File> fList = new ArrayList<File>();

        String[] files = filename.substring(1, filename.length() - 1).split("\" \"");
        // Optimize searching files by names in "children" array
        Arrays.sort(files);

        File[] children = null;
        int childIndex = 0;

        for (String str : files) {
          File file = fs.createFileObject(str);
          if (!file.isAbsolute()) {
            if (children == null) {
              children = fs.getFiles(dir, false);
              Arrays.sort(children);
            }
            for (int k = 0; k < children.length; k++) {
              int l = (childIndex + k) % children.length;
              if (children[l].getName().equals(str)) {
                file = children[l];
                childIndex = l + 1;
                break;
              }
            }
          }
          fList.add(file);
        }

        if (!fList.isEmpty()) {
          selectedFiles = fList.toArray(new File[fList.size()]);
        }
        resetGlobFilter();
      } else {
        selectedFile = fs.createFileObject(filename);
        if (!selectedFile.isAbsolute()) {
          selectedFile = fs.getChild(dir, filename);
        }
        // check for wildcard pattern
        FileFilter currentFilter = chooser.getFileFilter();
        if (!selectedFile.exists() && isGlobPattern(filename)) {
          changeDirectory(selectedFile.getParentFile());
          if (globFilter == null) {
            globFilter = new GlobFilter();
          }
          try {
            globFilter.setPattern(selectedFile.getName());
            if (!(currentFilter instanceof GlobFilter)) {
              actualFileFilter = currentFilter;
            }
            chooser.setFileFilter(null);
            chooser.setFileFilter(globFilter);
            return;
          } catch (PatternSyntaxException pse) {
            // Not a valid glob pattern. Abandon filter.
          }
        }

        resetGlobFilter();

        // Check for directory change action
        boolean isDir = (selectedFile != null && selectedFile.isDirectory());
        boolean isTrav = (selectedFile != null && chooser.isTraversable(selectedFile));
        boolean isDirSelEnabled = chooser.isDirectorySelectionEnabled();
        boolean isFileSelEnabled = chooser.isFileSelectionEnabled();
        boolean isCtrl =
            (e != null
                && (e.getModifiers() & Toolkit.getDefaultToolkit().getMenuShortcutKeyMask()) != 0);

        if (isDir && isTrav && (isCtrl || !isDirSelEnabled)) {
          changeDirectory(selectedFile);
          return;
        } else if ((isDir || !isFileSelEnabled)
            && (!isDir || !isDirSelEnabled)
            && (!isDirSelEnabled || selectedFile.exists())) {
          selectedFile = null;
        }
      }

      if (selectedFiles != null || selectedFile != null) {
        if (selectedFiles != null || chooser.isMultiSelectionEnabled()) {
          if (selectedFiles == null) {
            selectedFiles = new File[] {selectedFile};
          }
          chooser.setSelectedFiles(selectedFiles);
          // Do it again. This is a fix for bug 4949273 to force the
          // selected value in case the ListSelectionModel clears it
          // for non-existing file names.
          chooser.setSelectedFiles(selectedFiles);
        } else {
          chooser.setSelectedFile(selectedFile);
        }
        chooser.approveSelection();
      } else {
        if (chooser.isMultiSelectionEnabled()) {
          chooser.setSelectedFiles(null);
        } else {
          chooser.setSelectedFile(null);
        }
        chooser.cancelSelection();
      }
    }