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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\Query; |
| 20 | use Karla\Action; |
| 21 | use InvalidArgumentException; |
| 22 | |
| 23 | /** |
| 24 | * Class for handeling resize action |
| 25 | * |
| 26 | * @category Utility |
| 27 | * @author Johannes Skov Frandsen <jsf@greenoak.dk> |
| 28 | * @license http://www.opensource.org/licenses/mit-license.php MIT |
| 29 | * @link https://github.com/localgod/karla Karla |
| 30 | */ |
| 31 | class Resize implements Action |
| 32 | { |
| 33 | /** |
| 34 | * Preserve aspect ratio |
| 35 | * |
| 36 | * @var string |
| 37 | */ |
| 38 | public const ASPECT_FILL = 'aspect_fill'; |
| 39 | |
| 40 | /** |
| 41 | * Ignored aspect ratio |
| 42 | * |
| 43 | * @var string |
| 44 | */ |
| 45 | public const ASPECT_FIT = 'aspect_fit'; |
| 46 | |
| 47 | /** |
| 48 | * Width of new image |
| 49 | * |
| 50 | * @var integer |
| 51 | */ |
| 52 | private int $width; |
| 53 | |
| 54 | /** |
| 55 | * Height of new image |
| 56 | * |
| 57 | * @var integer |
| 58 | */ |
| 59 | private int $height; |
| 60 | |
| 61 | /** |
| 62 | * Maintain aspect ratio |
| 63 | * |
| 64 | * @var boolean |
| 65 | */ |
| 66 | private bool $maintainAspectRatio; |
| 67 | |
| 68 | /** |
| 69 | * Don't scale up |
| 70 | * |
| 71 | * @var boolean |
| 72 | */ |
| 73 | private bool $dontScaleUp; |
| 74 | |
| 75 | /** |
| 76 | * Default we ignored aspect ratio |
| 77 | * @var string |
| 78 | */ |
| 79 | private string $aspect = self::ASPECT_FIT; |
| 80 | |
| 81 | /** |
| 82 | * Construct a new size action |
| 83 | * |
| 84 | * @param integer $width |
| 85 | * Image width |
| 86 | * @param integer $height |
| 87 | * Image height |
| 88 | * @param boolean $maintainAspectRatio |
| 89 | * Should we maintain aspect ratio? |
| 90 | * @param boolean $dontScaleUp |
| 91 | * Should we prohipped scaling up? |
| 92 | * @param string $aspect |
| 93 | * How should we handle aspect ratio? |
| 94 | * |
| 95 | * @throws \InvalidArgumentException |
| 96 | */ |
| 97 | public function __construct( |
| 98 | int|null $width, |
| 99 | int|null $height, |
| 100 | bool $maintainAspectRatio, |
| 101 | bool $dontScaleUp, |
| 102 | string $aspect = Resize::ASPECT_FIT |
| 103 | ) { |
| 104 | if ($width == "" && $height == "") { |
| 105 | $message = 'You must supply height or width or both to resize the image'; |
| 106 | throw new InvalidArgumentException($message); |
| 107 | } |
| 108 | if (! is_numeric($width) && $width != '') { |
| 109 | $message = 'width must be an integer value or empty.'; |
| 110 | throw new InvalidArgumentException($message); |
| 111 | } |
| 112 | if (! is_numeric($height) && $height != '') { |
| 113 | $message = 'height must be an integer value or empty.'; |
| 114 | throw new InvalidArgumentException($message); |
| 115 | } |
| 116 | if (!in_array($aspect, array(Resize::ASPECT_FIT, Resize::ASPECT_FILL))) { |
| 117 | $message = sprintf('aspect must be "%s" or "%s".', Resize::ASPECT_FIT, Resize::ASPECT_FILL); |
| 118 | throw new \InvalidArgumentException($message); |
| 119 | } |
| 120 | |
| 121 | $this->width = $width; |
| 122 | $this->height = $height; |
| 123 | $this->maintainAspectRatio = $maintainAspectRatio; |
| 124 | $this->dontScaleUp = $dontScaleUp; |
| 125 | $this->aspect = $aspect; |
| 126 | } |
| 127 | |
| 128 | /** |
| 129 | * (non-PHPdoc) |
| 130 | * |
| 131 | * @param Query $query |
| 132 | * The query to add the action to |
| 133 | * @return Query |
| 134 | * @see Action::perform() |
| 135 | */ |
| 136 | public function perform(Query $query): Query |
| 137 | { |
| 138 | $query->notWith('resize', Query::ARGUMENT_TYPE_INPUT); |
| 139 | $query->notWith('resample', Query::ARGUMENT_TYPE_INPUT); |
| 140 | |
| 141 | $option = " -resize "; |
| 142 | |
| 143 | if ($this->width != '') { |
| 144 | $option .= $this->width; |
| 145 | } |
| 146 | |
| 147 | if ($this->height != '') { |
| 148 | $option .= "x" . $this->height; |
| 149 | } |
| 150 | |
| 151 | if ($this->aspect == Resize::ASPECT_FILL) { |
| 152 | $option .= "^"; |
| 153 | } |
| 154 | |
| 155 | if ($this->dontScaleUp) { |
| 156 | $option .= "\>"; |
| 157 | } |
| 158 | |
| 159 | if (! $this->maintainAspectRatio) { |
| 160 | $option .= "!"; |
| 161 | } |
| 162 | $option .= " "; |
| 163 | $query->setInputOption($option); |
| 164 | |
| 165 | return $query; |
| 166 | } |
| 167 | } |