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extend/phpexcel/PHPExcel/Worksheet/CellIterator.php

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+<?php
+/**
+ * PHPExcel
+ *
+ * Copyright (c) 2006 - 2014 PHPExcel
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * @category   PHPExcel
+ * @package    PHPExcel_Worksheet
+ * @copyright  Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
+ * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt	LGPL
+ * @version    1.8.0, 2014-03-02
+ */
+
+
+/**
+ * PHPExcel_Worksheet_CellIterator
+ *
+ * Used to iterate rows in a PHPExcel_Worksheet
+ *
+ * @category   PHPExcel
+ * @package    PHPExcel_Worksheet
+ * @copyright  Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
+ */
+class PHPExcel_Worksheet_CellIterator implements Iterator
+{
+	/**
+	 * PHPExcel_Worksheet to iterate
+	 *
+	 * @var PHPExcel_Worksheet
+	 */
+	private $_subject;
+
+	/**
+	 * Row index
+	 *
+	 * @var int
+	 */
+	private $_rowIndex;
+
+	/**
+	 * Current iterator position
+	 *
+	 * @var int
+	 */
+	private $_position = 0;
+
+	/**
+	 * Loop only existing cells
+	 *
+	 * @var boolean
+	 */
+	private $_onlyExistingCells = true;
+
+	/**
+	 * Create a new cell iterator
+	 *
+	 * @param PHPExcel_Worksheet 		$subject
+	 * @param int						$rowIndex
+	 */
+	public function __construct(PHPExcel_Worksheet $subject = null, $rowIndex = 1) {
+		// Set subject and row index
+		$this->_subject 	= $subject;
+		$this->_rowIndex 	= $rowIndex;
+	}
+
+	/**
+	 * Destructor
+	 */
+	public function __destruct() {
+		unset($this->_subject);
+	}
+
+	/**
+	 * Rewind iterator
+	 */
+    public function rewind() {
+        $this->_position = 0;
+    }
+
+    /**
+     * Current PHPExcel_Cell
+     *
+     * @return PHPExcel_Cell
+     */
+    public function current() {
+		return $this->_subject->getCellByColumnAndRow($this->_position, $this->_rowIndex);
+    }
+
+    /**
+     * Current key
+     *
+     * @return int
+     */
+    public function key() {
+        return $this->_position;
+    }
+
+    /**
+     * Next value
+     */
+    public function next() {
+        ++$this->_position;
+    }
+
+    /**
+     * Are there any more PHPExcel_Cell instances available?
+     *
+     * @return boolean
+     */
+    public function valid() {
+        // columnIndexFromString() returns an index based at one,
+        // treat it as a count when comparing it to the base zero
+        // position.
+        $columnCount = PHPExcel_Cell::columnIndexFromString($this->_subject->getHighestColumn());
+
+        if ($this->_onlyExistingCells) {
+            // If we aren't looking at an existing cell, either
+            // because the first column doesn't exist or next() has
+            // been called onto a nonexistent cell, then loop until we
+            // find one, or pass the last column.
+            while ($this->_position < $columnCount &&
+                   !$this->_subject->cellExistsByColumnAndRow($this->_position, $this->_rowIndex)) {
+                ++$this->_position;
+            }
+        }
+
+        return $this->_position < $columnCount;
+    }
+
+	/**
+	 * Get loop only existing cells
+	 *
+	 * @return boolean
+	 */
+    public function getIterateOnlyExistingCells() {
+    	return $this->_onlyExistingCells;
+    }
+
+	/**
+	 * Set the iterator to loop only existing cells
+	 *
+	 * @param	boolean		$value
+	 */
+    public function setIterateOnlyExistingCells($value = true) {
+    	$this->_onlyExistingCells = $value;
+    }
+}