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| 1 | <?php |
| 2 | /** |
| 3 | * This file is part of PHPPresentation - A pure PHP library for reading and writing |
| 4 | * presentations documents. |
| 5 | * |
| 6 | * PHPPresentation is free software distributed under the terms of the GNU Lesser |
| 7 | * General Public License version 3 as published by the Free Software Foundation. |
| 8 | * |
| 9 | * For the full copyright and license information, please read the LICENSE |
| 10 | * file that was distributed with this source code. For the full list of |
| 11 | * contributors, visit https://github.com/PHPOffice/PHPPresentation/contributors. |
| 12 | * |
| 13 | * @see https://github.com/PHPOffice/PHPPresentation |
| 14 | * |
| 15 | * @license http://www.gnu.org/licenses/lgpl.txt LGPL version 3 |
| 16 | */ |
| 17 | |
| 18 | declare(strict_types=1); |
| 19 | |
| 20 | namespace PhpOffice\PhpPresentation\Slide; |
| 21 | |
| 22 | use IteratorIterator; |
| 23 | use PhpOffice\PhpPresentation\PhpPresentation; |
| 24 | use ReturnTypeWillChange; |
| 25 | |
| 26 | // @phpstan-ignore-next-line |
| 27 | class Iterator extends IteratorIterator |
| 28 | { |
| 29 | /** |
| 30 | * Presentation to iterate. |
| 31 | * |
| 32 | * @var PhpPresentation |
| 33 | */ |
| 34 | private $subject; |
| 35 | |
| 36 | /** |
| 37 | * Current iterator position. |
| 38 | * |
| 39 | * @var int |
| 40 | */ |
| 41 | private $position = 0; |
| 42 | |
| 43 | /** |
| 44 | * Create a new slide iterator. |
| 45 | */ |
| 46 | public function __construct(PhpPresentation $subject) |
| 47 | { |
| 48 | $this->subject = $subject; |
| 49 | } |
| 50 | |
| 51 | /** |
| 52 | * Rewind iterator. |
| 53 | */ |
| 54 | #[ReturnTypeWillChange] |
| 55 | public function rewind(): void |
| 56 | { |
| 57 | $this->position = 0; |
| 58 | } |
| 59 | |
| 60 | /** |
| 61 | * Current \PhpOffice\PhpPresentation\Slide. |
| 62 | * |
| 63 | * @return \PhpOffice\PhpPresentation\Slide |
| 64 | */ |
| 65 | #[ReturnTypeWillChange] |
| 66 | public function current() |
| 67 | { |
| 68 | return $this->subject->getSlide($this->position); |
| 69 | } |
| 70 | |
| 71 | /** |
| 72 | * Current key. |
| 73 | * |
| 74 | * @return int |
| 75 | */ |
| 76 | #[ReturnTypeWillChange] |
| 77 | public function key() |
| 78 | { |
| 79 | return $this->position; |
| 80 | } |
| 81 | |
| 82 | /** |
| 83 | * Next value. |
| 84 | */ |
| 85 | #[ReturnTypeWillChange] |
| 86 | public function next(): void |
| 87 | { |
| 88 | ++$this->position; |
| 89 | } |
| 90 | |
| 91 | /** |
| 92 | * More \PhpOffice\PhpPresentation\Slide instances available? |
| 93 | * |
| 94 | * @return bool |
| 95 | */ |
| 96 | #[ReturnTypeWillChange] |
| 97 | public function valid() |
| 98 | { |
| 99 | return $this->position < $this->subject->getSlideCount(); |
| 100 | } |
| 101 | } |