File Source for CellIterator.php

<?php
/**
* PHPExcel
*
* Copyright (c) 2006 - 2009 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 - 2009 PHPExcel (http://www.codeplex.com/PHPExcel)
* @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
* @version 1.7.0, 2009-08-10
*/
/** PHPExcel root directory */
if (!defined('PHPEXCEL_ROOT')) {
/**
* @ignore
*/
define('PHPEXCEL_ROOT', dirname(__FILE__) . '/../../');
}
/** PHPExcel */
require_once PHPEXCEL_ROOT . 'PHPExcel.php';
/** PHPExcel_Worksheet */
require_once PHPEXCEL_ROOT . 'PHPExcel/Worksheet.php';
/** PHPExcel_Cell */
require_once PHPEXCEL_ROOT . 'PHPExcel/Cell.php';
/**
* PHPExcel_Worksheet_CellIterator
*
* Used to iterate rows in a PHPExcel_Worksheet
*
* @category PHPExcel
* @package PHPExcel_Worksheet
* @copyright Copyright (c) 2006 - 2009 PHPExcel (http://www.codeplex.com/PHPExcel)
*/
class PHPExcel_Worksheet_CellIterator extends IteratorIterator
{
/**
* 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() {
$cellExists = $this->_subject->cellExistsByColumnAndRow($this->_position, $this->_rowIndex);
if ( ($this->_onlyExistingCells && $cellExists) || (!$this->_onlyExistingCells) ) {
return $this->_subject->getCellByColumnAndRow($this->_position, $this->_rowIndex);
} else if ($this->_onlyExistingCells && !$cellExists) {
// Loop untill we find one
while ($this->valid()) {
$this->next();
if ($this->_subject->cellExistsByColumnAndRow($this->_position, $this->_rowIndex)) {
return $this->_subject->getCellByColumnAndRow($this->_position, $this->_rowIndex);
}
}
}
return null;
}
/**
* Current key
*
* @return int
*/
public function key() {
return $this->_position;
}
/**
* Next value
*/
public function next() {
++$this->_position;
}
/**
* More PHPExcel_Cell instances available?
*
* @return boolean
*/
public function valid() {
return $this->_position < PHPExcel_Cell::columnIndexFromString( $this->_subject->getHighestColumn() );
}
/**
* Get loop only existing cells
*
* @return boolean
*/
public function getIterateOnlyExistingCells() {
return $this->_onlyExistingCells;
}
/**
* Set loop only existing cells
*
* @return boolean
*/
public function setIterateOnlyExistingCells($value = true) {
$this->_onlyExistingCells = $value;
}
}

Source for file CellIterator.php