src/PhpPresentation/Slide/Iterator.php
<?php
/**
* This file is part of PHPPresentation - A pure PHP library for reading and writing
* presentations documents.
*
* PHPPresentation is free software distributed under the terms of the GNU Lesser
* General Public License version 3 as published by the Free Software Foundation.
*
* For the full copyright and license information, please read the LICENSE
* file that was distributed with this source code. For the full list of
* contributors, visit https://github.com/PHPOffice/PHPPresentation/contributors.
*
* @see https://github.com/PHPOffice/PHPPresentation
*
* @license http://www.gnu.org/licenses/lgpl.txt LGPL version 3
*/
declare(strict_types=1);
namespace PhpOffice\PhpPresentation\Slide;
use IteratorIterator;
use PhpOffice\PhpPresentation\PhpPresentation;
use ReturnTypeWillChange;
// @phpstan-ignore-next-line
class Iterator extends IteratorIterator
{
/**
* Presentation to iterate.
*
* @var PhpPresentation
*/
private $subject;
/**
* Current iterator position.
*
* @var int
*/
private $position = 0;
/**
* Create a new slide iterator.
*/
public function __construct(PhpPresentation $subject)
{
$this->subject = $subject;
}
/**
* Rewind iterator.
*/
#[ReturnTypeWillChange]
public function rewind(): void
{
$this->position = 0;
}
/**
* Current \PhpOffice\PhpPresentation\Slide.
*
* @return \PhpOffice\PhpPresentation\Slide
*/
#[ReturnTypeWillChange]
public function current()
{
return $this->subject->getSlide($this->position);
}
/**
* Current key.
*
* @return int
*/
#[ReturnTypeWillChange]
public function key()
{
return $this->position;
}
/**
* Next value.
*/
#[ReturnTypeWillChange]
public function next(): void
{
++$this->position;
}
/**
* More \PhpOffice\PhpPresentation\Slide instances available?
*
* @return bool
*/
#[ReturnTypeWillChange]
public function valid()
{
return $this->position < $this->subject->getSlideCount();
}
}