<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Superclass for the Property Group classes.
*
* @package PhpMyAdmin
*/
if (! defined('PHPMYADMIN')) {
exit;
}

/* This class extends the OptionsPropertyItem class */
require_once 'OptionsPropertyItem.class.php';

/**
* Parents group property items and provides methods to manage groups of
* properties.
*
* @todo modify descriptions if needed, when the options are integrated
* @package PhpMyAdmin
*/
abstract class OptionsPropertyGroup extends OptionsPropertyItem
{
/**
* Holds a group of properties (OptionsPropertyItem instances)
*
* @var array
*/
private $_properties;

/**
* Adds a property to the group of properties
*
* @param OptionsPropertyItem $property the property instance to be added
* to the group
*
* @return void
*/
public function addProperty($property)
{
if (! $this->getProperties() == null
&& in_array($property, $this->getProperties(), true)
) {
return;
}
$this->_properties [] = $property;
}

/**
* Removes a property from the group of properties
*
* @param OptionsPropertyItem $property the property instance to be removed
* from the group
*
* @return void
*/
public function removeProperty($property)
{
$this->_properties = array_udiff(
$this->getProperties(),
array($property),
// for PHP 5.2 compability
create_function(
'$a, $b',
'return ($a === $b ) ? 0 : 1'
)
);
}


/* ~~~~~~~~~~~~~~~~~~~~ Getters and Setters ~~~~~~~~~~~~~~~~~~~~ */


/**
* Gets the instance of the class
*
* @return array
*/
public function getGroup()
{
return $this;
}

/**
* Gets the group of properties
*
* @return array
*/
public function getProperties()
{
return $this->_properties;
}

/**
* Gets the number of properties
*
* @return int
*/
public function getNrOfProperties()
{
return count($this->_properties);
}
}
?>