/**
   * Returns the string, showing information for the given file.
   *
   * @param file the file
   * @return the name of the given file
   */
  protected String getFileLabel(File file) {
    String fileName = file.getName();
    long fileSize = file.length();

    ByteFormat format = new ByteFormat();
    String text = format.format(fileSize);

    return fileName + " (" + text + ")";
  }