From cbeed6e51bd1c7ea34b0cd934f3da0afe1b45d95 Mon Sep 17 00:00:00 2001
From: javalizard <>
Date: Mon, 12 Apr 2010 00:07:29 +0000
Subject: added insertBefore and insertAfter

---
 framework/Collections/TList.php | 36 +++++++++++++++++++++++++++++++++---
 1 file changed, 33 insertions(+), 3 deletions(-)

(limited to 'framework/Collections/TList.php')

diff --git a/framework/Collections/TList.php b/framework/Collections/TList.php
index 50cbaf01..1a3dffb7 100644
--- a/framework/Collections/TList.php
+++ b/framework/Collections/TList.php
@@ -4,7 +4,7 @@
  *
  * @author Qiang Xue <qiang.xue@gmail.com>
  * @link http://www.pradosoft.com/
- * @copyright Copyright &copy; 2005-2008 PradoSoft
+ * @copyright Copyright &copy; 2005-2008 PradoSoft
  * @license http://www.pradosoft.com/license/
  * @version $Id$
  * @package System.Collections
@@ -16,7 +16,7 @@
  * TList implements an integer-indexed collection class.
  *
  * You can access, append, insert, remove an item by using
- * {@link itemAt}, {@link add}, {@link insert}, {@link remove}, and {@link removeAt}.
+ * {@link itemAt}, {@link add}, {@link insertAt}, {@link remove}, and {@link removeAt}.
  * To get the number of the items in the list, use {@link getCount}.
  * TList can also be used like a regular array as follows,
  * <code>
@@ -47,7 +47,7 @@ class TList extends TComponent implements IteratorAggregate,ArrayAccess,Countabl
 	 * number of items
 	 * @var integer
 	 */
-	private $_c=0;
+	protected $_c=0;
 	/**
 	 * @var boolean whether this list is read-only
 	 */
@@ -243,6 +243,36 @@ class TList extends TComponent implements IteratorAggregate,ArrayAccess,Countabl
 			return $index;
 	}
 
+	/**
+	 * Finds the base item.  If found, the item is inserted before it.  
+	 * @param mixed the base item which will be pushed back by the second parameter
+	 * @param mixed the item
+	 * @return object $this. null if the $baseitem is not found
+	 */
+	public function insertBefore($baseitem, $item)
+	{
+		if(($index = $this->indexOf($baseitem)) == -1) return null;
+		
+		$this->insertAt($index, $item);
+		
+		return $this;
+	}
+
+	/**
+	 * Finds the base item.  If found, the item is inserted after it.  
+	 * @param mixed the base item which comes before the second parameter when added to the list
+	 * @param mixed the item
+	 * @return object $this. null if the $baseitem is not found
+	 */
+	public function insertAfter($baseitem, $item)
+	{
+		if(($index = $this->indexOf($baseitem)) == -1) return null;
+		
+		$this->insertAt($index + 1, $item);
+		
+		return $this;
+	}
+
 	/**
 	 * @return array the list of items in array
 	 */
-- 
cgit v1.2.3