Version 4.0.13.1

system/Patterns/Bitwise.php

@@ -0,0 +1,172 @@
+<?php
+/**
+ * @brief		Bitwise Class
+ * @author		<a href='http://www.invisionpower.com'>Invision Power Services, Inc.</a>
+ * @copyright	(c) 2001 - SVN_YYYY Invision Power Services, Inc.
+ * @license		http://www.invisionpower.com/legal/standards/
+ * @package		IPS Social Suite
+ * @since		1 Apr 2013
+ * @version		SVN_VERSION_NUMBER
+ */
+
+namespace IPS\Patterns;
+
+/* To prevent PHP errors (extending class does not exist) revealing path */
+if ( !defined( '\IPS\SUITE_UNIQUE_KEY' ) )
+{
+	header( ( isset( $_SERVER['SERVER_PROTOCOL'] ) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.0' ) . ' 403 Forbidden' );
+	exit;
+}
+
+/**
+ * Bitwise Class
+ */
+class _Bitwise implements \ArrayAccess
+{
+	/**
+	 * @brief	Values
+	 */
+	public $values = array();
+	
+	/**
+	 * @brief	Original Values
+	 */
+	public $originalValues = 0;
+	
+	/**
+	 * @brief	Keys
+	 */
+	protected $keys = array();
+	
+	/**
+	 * @brief	Keys Lookup
+	 */
+	protected $lookup = array();
+	
+	/**
+	 * @brief	Callback when value is changed
+	 */
+	protected $callback = NULL;
+	
+	/**
+	 * Constructor
+	 *
+	 * @param	array			$values		The numbers
+	 * @param	array			$keys		Multi-dimensional array. Keys match keys in $value, value is associative array with keys and representive value, or just a list of keys in order
+	 * @param	callback|null	$callback	Callback when value is changed
+	 * @return	void
+	 */
+	public function __construct( array $values, array $keys, $callback=NULL )
+	{
+		$this->values = $values;
+		$this->originalValues = $values;
+		
+		foreach ( $keys as $groupKey => $fields )
+		{
+			$i = 1;
+			foreach ( $fields as $k => $v )
+			{
+				if ( is_string( $v ) )
+				{
+					$this->keys[ $groupKey ][ $v ] = $i;
+					$this->lookup[ $k ] = $groupKey;
+				}
+				else
+				{
+					while( $v != $i )
+					{
+						$this->keys[ $groupKey ][] = $i;
+						$this->lookup[] = $groupKey;
+						$i *= 2;
+					}
+					
+					$this->keys[ $groupKey ][ $k ] = $v;
+					$this->lookup[ $k ] = $groupKey;
+				}
+				
+				$i *= 2;
+			}
+		}
+				
+		$this->callback = $callback;
+	}
+		
+	/**
+	 * Offset exists?
+	 *
+	 * @param	string	$offset	Offset
+	 * @return	bool
+	 */
+	public function offsetExists( $offset )
+	{
+		return isset( $this->lookup[ $offset ] );
+	}
+	
+	/**
+	 * Get offset
+	 *
+	 * @param	string	$offset	Offset
+	 * @return	bool
+	 */
+	public function offsetGet( $offset )
+	{
+		$group = $this->lookup[ $offset ];
+		return (bool) ( $this->values[ $group ] & $this->keys[ $group ][ $offset ] );
+	}
+	
+	/**
+	 * Set offset
+	 *
+	 * @param	string	$offset	Offset
+	 * @param	bool	$value	Value
+	 * @return	void
+	 */
+	public function offsetSet( $offset, $value )
+	{
+		if ( $this->callback !== NULL )
+		{
+			call_user_func( $this->callback, $offset, $value );
+		}
+		
+		$group = $this->lookup[ $offset ];
+		if ( $value )
+		{
+			$this->values[ $group ] |= $this->keys[ $group ][ $offset ];
+		}
+		else
+		{
+			$this->values[ $group ] &= ~$this->keys[ $group ][ $offset ];
+		}
+	}
+	
+	/**
+	 * Unset offset
+	 *
+	 * @param	string	$offset	Offset
+	 * @return	void
+	 */
+	public function offsetUnset( $offset )
+	{
+		return $this->offsetSet( $offset, FALSE );
+	}
+	
+	/** 
+	 * Get array
+	 *
+	 * @return	array
+	 */
+	public function asArray()
+	{	
+		$return = array();
+						
+		foreach ( $this->keys as $group )
+		{
+			foreach ( $group as $k => $v )
+			{
+				$return[ $k ] = $this->offsetGet( $k );
+			}
+		}
+		
+		return $return;
+	}
+}