From 169950e09cad0e69a7dcbcdabe7ef86086766483 Mon Sep 17 00:00:00 2001
From: Fabio Bas <ctrlaltca@gmail.com>
Date: Tue, 20 Jan 2015 19:22:34 +0100
Subject: One class per file: framework/Collections/

---
 framework/Collections/TPagedMapIterator.php | 99 +++++++++++++++++++++++++++++
 1 file changed, 99 insertions(+)
 create mode 100644 framework/Collections/TPagedMapIterator.php

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

diff --git a/framework/Collections/TPagedMapIterator.php b/framework/Collections/TPagedMapIterator.php
new file mode 100644
index 00000000..c5a078c1
--- /dev/null
+++ b/framework/Collections/TPagedMapIterator.php
@@ -0,0 +1,99 @@
+<?php
+/**
+ * TPagedDataSource, TPagedListIterator, TPagedMapIterator classes
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @link http://www.pradosoft.com/
+ * @copyright Copyright &copy; 2005-2014 PradoSoft
+ * @license http://www.pradosoft.com/license/
+ * @package System.Collections
+ */
+
+/**
+ * TPagedMapIterator class
+ *
+ * TPagedMapIterator implements Iterator interface.
+ *
+ * TPagedMapIterator is used by {@link TPagedDataSource}. It allows TPagedDataSource
+ * to return a new iterator for traversing the items in a {@link TMap} object.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @package System.Collections
+ * @since 3.0
+ */
+class TPagedMapIterator implements Iterator
+{
+	private $_map;
+	private $_startIndex;
+	private $_count;
+	private $_index;
+	private $_iterator;
+
+	/**
+	 * Constructor.
+	 * @param array the data to be iterated through
+	 */
+	public function __construct(TMap $map,$startIndex,$count)
+	{
+		$this->_map=$map;
+		$this->_index=0;
+		$this->_startIndex=$startIndex;
+		if($startIndex+$count>$map->getCount())
+			$this->_count=$map->getCount()-$startIndex;
+		else
+			$this->_count=$count;
+		$this->_iterator=$map->getIterator();
+	}
+
+	/**
+	 * Rewinds internal array pointer.
+	 * This method is required by the interface Iterator.
+	 */
+	public function rewind()
+	{
+		$this->_iterator->rewind();
+		for($i=0;$i<$this->_startIndex;++$i)
+			$this->_iterator->next();
+		$this->_index=0;
+	}
+
+	/**
+	 * Returns the key of the current array item.
+	 * This method is required by the interface Iterator.
+	 * @return integer the key of the current array item
+	 */
+	public function key()
+	{
+		return $this->_iterator->key();
+	}
+
+	/**
+	 * Returns the current array item.
+	 * This method is required by the interface Iterator.
+	 * @return mixed the current array item
+	 */
+	public function current()
+	{
+		return $this->_iterator->current();
+	}
+
+	/**
+	 * Moves the internal pointer to the next array item.
+	 * This method is required by the interface Iterator.
+	 */
+	public function next()
+	{
+		$this->_index++;
+		$this->_iterator->next();
+	}
+
+	/**
+	 * Returns whether there is an item at current position.
+	 * This method is required by the interface Iterator.
+	 * @return boolean
+	 */
+	public function valid()
+	{
+		return $this->_index<$this->_count;
+	}
+}
\ No newline at end of file
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