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| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * Karla ImageMagick wrapper library |
| 5 | * |
| 6 | * PHP Version 8.0< |
| 7 | * |
| 8 | * @category Utility |
| 9 | * @author Johannes Skov Frandsen <jsf@greenoak.dk> |
| 10 | * @license http://www.opensource.org/licenses/mit-license.php MIT |
| 11 | * @link https://github.com/localgod/karla Karla |
| 12 | * @since 2013-05-26 |
| 13 | */ |
| 14 | |
| 15 | declare(strict_types=1); |
| 16 | |
| 17 | namespace Karla\Action; |
| 18 | |
| 19 | use Karla\Program; |
| 20 | use Karla\Query; |
| 21 | use Karla\Action; |
| 22 | use Karla\Support; |
| 23 | |
| 24 | /** |
| 25 | * Class for handeling layers action |
| 26 | * |
| 27 | * @category Utility |
| 28 | * @author Johannes Skov Frandsen <jsf@greenoak.dk> |
| 29 | * @license http://www.opensource.org/licenses/mit-license.php MIT |
| 30 | * @link https://github.com/localgod/karla Karla |
| 31 | */ |
| 32 | class Layers implements Action |
| 33 | { |
| 34 | /** |
| 35 | * Method |
| 36 | * |
| 37 | * @var string |
| 38 | */ |
| 39 | private string $method; |
| 40 | |
| 41 | /** |
| 42 | * Contruct new action |
| 43 | * |
| 44 | * @param \Karla\Program $program |
| 45 | * The program to use |
| 46 | * @param string $method |
| 47 | * Method |
| 48 | * |
| 49 | * @throws \InvalidArgumentException If the supplied method is not supported by imagemagick. |
| 50 | */ |
| 51 | public function __construct(Program $program, string $method) |
| 52 | { |
| 53 | if (! Support::layerMethod($program, $method)) { |
| 54 | $message = 'The supplied method (' . $method . ') is not supported by imagemagick'; |
| 55 | throw new \InvalidArgumentException($message); |
| 56 | } |
| 57 | $this->method = $method; |
| 58 | } |
| 59 | |
| 60 | /** |
| 61 | * (non-PHPdoc) |
| 62 | * |
| 63 | * @param Query $query |
| 64 | * The query to add the action to |
| 65 | * @return Query |
| 66 | * @see Action::perform() |
| 67 | */ |
| 68 | public function perform(Query $query): Query |
| 69 | { |
| 70 | $query->setInputOption(" -layers " . $this->method); |
| 71 | return $query; |
| 72 | } |
| 73 | } |