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<?php
/**
* @version $Id:tree.php 6961 2007-03-15 16:06:53Z tcp $
* @package Joomla.Framework
* @subpackage Base
* @copyright Copyright (C) 2005 - 2010 Open Source Matters. All rights reserved.
* @license GNU/GPL, see LICENSE.php
* Joomla! is free software. This version may have been modified pursuant to the
* GNU General Public License, and as distributed it includes or is derivative
* of works licensed under the GNU General Public License or other free or open
* source software licenses. See COPYRIGHT.php for copyright notices and
* details.
*/
// Check to ensure this file is within the rest of the framework
defined('JPATH_BASE') or die();
/**
* Tree Class.
*
* @package Joomla.Framework
* @subpackage Base
* @since 1.5
*/
class JTree extends JObject
{
/**
* Root node
*/
var $_root = null;
/**
* Current working node
*/
var $_current = null;
function __construct()
{
$this->_root = new JNode('ROOT');
$this->_current = & $this->_root;
}
function addChild(&$node, $setCurrent = false)
{
$this->_current->addChild($node);
if ($setCurrent) {
$this->_current =& $node;
}
}
function getParent()
{
$this->_current =& $this->_current->getParent();
}
function reset()
{
$this->_current =& $this->_root;
}
}
/**
* Tree Node Class.
*
* @package Joomla.Framework
* @subpackage Base
* @since 1.5
*/
class JNode extends JObject
{
/**
* Parent node
*/
var $_parent = null;
/**
* Array of Children
*/
var $_children = array();
function __construct()
{
return true;
}
function addChild( &$node )
{
$node->setParent($this);
$this->_children[] = & $node;
}
function &getParent()
{
return $this->_parent;
}
function setParent( &$node )
{
$this->_parent = & $node;
}
function hasChildren()
{
return count($this->_children);
}
function &getChildren()
{
return $this->_children;
}
}