/* FileView.java --
   Copyright (C) 2002, 2004, 2005, 2006,  Free Software Foundation, Inc.

This file is part of GNU Classpath.

GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
General Public License for more details.

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02110-1301 USA.

Linking this library statically or dynamically with other modules is
making a combined work based on this library.  Thus, the terms and
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As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
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package javax.swing.filechooser;

import java.io.File;

import javax.swing.Icon;

/**
 * An abstract class that provides presentation information about files and 
 * directories.  .
 * 
 * @author  Andrew Selkirk
 */
public abstract class FileView 
{

  /**
   * Creates a new <code>FileView</code> instance.
   */
  public FileView() 
  {
    // Nothing to do here.
  } 

  /**
   * Returns the name for the specified file.  This method always returns
   * <code>null</code> and should be overridden by subclasses.
   * 
   * @param file  the file.
   * 
   * @return Always <code>null</code>.
   */
  public String getName(File file) 
  {
    return null;
  } 

  /**
   * Returns a description for the specified file.  This method always returns
   * <code>null</code> and should be overridden by subclasses.
   * 
   * @param file  the file.
   * 
   * @return Always <code>null</code>.
   */
  public String getDescription(File file) 
  {
    return null;
  } 

  /**
   * Returns a description for the type of the specified file.  This method 
   * always returns <code>null</code> and should be overridden by subclasses.
   * 
   * @param file  the file.
   * 
   * @return Always <code>null</code>.
   */
  public String getTypeDescription(File file) 
  {
    return null;
  } 

  /**
   * Returns an {@link Icon} to represent the specified file.  This method 
   * always returns <code>null</code> and should be overridden by subclasses.
   * 
   * @param file  the file.
   * 
   * @return Always <code>null</code>.
   */
  public Icon getIcon(File file) 
  {
    return null;
  } 

  /**
   * Returns {@link Boolean#TRUE} if the given directory is traversable, and
   * {@link Boolean#FALSE} if it is not.  This method always returns 
   * <code>null</code> and should be overridden by subclasses.
   * 
   * @param directory  the directory.
   * 
   * @return Always <code>null</code>.
   */
  public Boolean isTraversable(File directory) 
  {
    return null;
  } 

}