roottreenode.java

来自「一个用java写的mail.里面的代码值得我们去研究！学习。」· Java 代码 · 共 98 行

/*
** $Id: RootTreeNode.java,v 1.3 2001/05/07 12:37:22 kunugi Exp $
**
** Copyright (c) 2000-2001 Jeff Gay
** on behalf of ICEMail.org <http://www.icemail.org>
** Copyright (c) 1998-2000 by Timothy Gerard Endres
** 
** This program is free software.
** 
** You may redistribute it and/or modify it under the terms of the GNU
** General Public License as published by the Free Software Foundation.
** Version 2 of the license should be included with this distribution in
** the file LICENSE, as well as License.html. If the license is not
** included with this distribution, you may find a copy at the FSF web
** site at 'www.gnu.org' or 'www.fsf.org', or you may write to the
** Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139 USA.
**
** THIS SOFTWARE IS PROVIDED AS-IS WITHOUT WARRANTY OF ANY KIND,
** NOT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY. THE AUTHOR
** OF THIS SOFTWARE, ASSUMES _NO_ RESPONSIBILITY FOR ANY
** CONSEQUENCE RESULTING FROM THE USE, MODIFICATION, OR
** REDISTRIBUTION OF THIS SOFTWARE. 
*/

package org.icemail.mail;

import javax.mail.Folder;

import javax.swing.tree.DefaultMutableTreeNode;


/**
 * The root node of all stores.
 * <p>
 * Store nodes are constructed and added to this node, creating
 * a tree from which to manipulate folders and their contents.
 *
 * @see StoreTreeNode
 * @see FolderTreePanel
 */
public class RootTreeNode
  extends DefaultMutableTreeNode
{
  /**
   * Construct a root node with the given name.
   *
   * @param name the name of the node
   */
  public
  RootTreeNode( String name ) {
    super( name );
  }

  /**
   * Returns true if this node has no children.
   * <p>
   * Implementation of java.swing.tree.DefaultMutableTreeNode.isLeaf()
   *
   * @return always false because the root is expected to have store nodes
   */
  public boolean
  isLeaf() {
    return false;
  }

  public static void
  sortFolderList( Folder[] sub ) {
    int inner = 0;
    int outer = 0;

    for ( inner = 0 ; inner < sub.length ; ++inner ) {
      if ( sub[inner].getName().equalsIgnoreCase( "INBOX" ) ) {
        if ( inner > 0 ) {
          Folder temp = sub[inner];
          sub[inner] = sub[0];
          sub[0] = temp;
        }
        outer = 1;
        break;
      }
    }

  /* outer is inherited! */
    for ( ; outer < (sub.length - 1) ; ++outer ) {
      for ( inner = outer + 1; inner < sub.length ; ++inner ) {
        if ( sub[outer].getName().compareTo( sub[inner].getName() ) > 0 ) {
          Folder temp = sub[outer];
          sub[outer] = sub[inner];
          sub[inner] = temp;
          --outer;
          break;
        }
      }
    }
  }

}