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<?php
/**
* PHPPowerPoint
*
* Copyright (c) 2009 - 2010 PHPPowerPoint
*
* 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 PHPPowerPoint
* @package PHPPowerPoint
* @copyright Copyright (c) 2009 - 2010 PHPPowerPoint (http://www.codeplex.com/PHPPowerPoint)
* @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
* @version 0.1.0, 2009-04-27
*/
/** PHPPowerPoint */
require_once 'PHPPowerPoint.php';
/** PHPPowerPoint_Slide */
require_once 'PHPPowerPoint/Slide.php';
/**
* PHPPowerPoint_SlideIterator
*
* Used to iterate slides in PHPPowerPoint
*
* @category PHPPowerPoint
* @package PHPPowerPoint
* @copyright Copyright (c) 2009 - 2010 PHPPowerPoint (http://www.codeplex.com/PHPPowerPoint)
*/
class PHPPowerPoint_SlideIterator extends IteratorIterator
{
/**
* Presentation to iterate
*
* @var PHPPowerPoint
*/
private $_subject;
/**
* Current iterator position
*
* @var int
*/
private $_position = 0;
/**
* Create a new slide iterator
*
* @param PHPPowerPoint $subject
*/
public function __construct(PHPPowerPoint $subject = null) {
// Set subject
$this->_subject = $subject;
}
/**
* Destructor
*/
public function __destruct() {
unset($this->_subject);
}
/**
* Rewind iterator
*/
public function rewind() {
$this->_position = 0;
}
/**
* Current PHPPowerPoint_Slide
*
* @return PHPPowerPoint_Slide
*/
public function current() {
return $this->_subject->getSlide($this->_position);
}
/**
* Current key
*
* @return int
*/
public function key() {
return $this->_position;
}
/**
* Next value
*/
public function next() {
++$this->_position;
}
/**
* More PHPPowerPoint_Slide instances available?
*
* @return boolean
*/
public function valid() {
return $this->_position < $this->_subject->getSlideCount();
}
}
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