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| 1 | <?php |
| 2 | declare(strict_types=1); |
| 3 | /** |
| 4 | * Pop PHP Framework (https://www.popphp.org/) |
| 5 | * |
| 6 | * @link https://github.com/popphp/popphp-framework |
| 7 | * @author Nick Sagona, III <nick@popphp.org> |
| 8 | * @copyright Copyright (c) 2009-2026 Nick Sagona, III |
| 9 | * @license https://www.popphp.org/license New BSD License |
| 10 | */ |
| 11 | |
| 12 | /** |
| 13 | * @namespace |
| 14 | */ |
| 15 | namespace Pop\Color\Color; |
| 16 | |
| 17 | use OutOfRangeException; |
| 18 | |
| 19 | /** |
| 20 | * Image CMYK color class |
| 21 | * |
| 22 | * @category Pop |
| 23 | * @package Pop\Image |
| 24 | * @author Nick Sagona, III <nick@popphp.org> |
| 25 | * @copyright Copyright (c) 2009-2026 Nick Sagona, III |
| 26 | * @license https://www.popphp.org/license New BSD License |
| 27 | * @version 2.0.0 |
| 28 | */ |
| 29 | class Cmyk extends AbstractColor |
| 30 | { |
| 31 | |
| 32 | /** |
| 33 | * Cyan |
| 34 | * @var float |
| 35 | */ |
| 36 | protected float $c = 0; |
| 37 | |
| 38 | /** |
| 39 | * Magenta |
| 40 | * @var float |
| 41 | */ |
| 42 | protected float $m = 0; |
| 43 | |
| 44 | /** |
| 45 | * Yellow |
| 46 | * @var float |
| 47 | */ |
| 48 | protected float $y = 0; |
| 49 | |
| 50 | /** |
| 51 | * Black |
| 52 | * @var float |
| 53 | */ |
| 54 | protected float $k = 0; |
| 55 | |
| 56 | /** |
| 57 | * Constructor |
| 58 | * |
| 59 | * Instantiate a PERCENT CMYK Color object |
| 60 | * |
| 61 | * @param mixed $c 0 - 100 |
| 62 | * @param mixed $m 0 - 100 |
| 63 | * @param mixed $y 0 - 100 |
| 64 | * @param mixed $k 0 - 100 |
| 65 | */ |
| 66 | public function __construct(mixed $c, mixed $m, mixed $y, mixed $k) |
| 67 | { |
| 68 | $this->setC($c); |
| 69 | $this->setM($m); |
| 70 | $this->setY($y); |
| 71 | $this->setK($k); |
| 72 | } |
| 73 | |
| 74 | /** |
| 75 | * Set the cyan value |
| 76 | * |
| 77 | * @param mixed $c |
| 78 | * @throws OutOfRangeException |
| 79 | * @return Cmyk |
| 80 | */ |
| 81 | public function setC(mixed $c): Cmyk |
| 82 | { |
| 83 | $c = (float)$c; |
| 84 | if (($c < 0) || ($c > 100)) { |
| 85 | throw new OutOfRangeException('Error: The value must be between 0 and 100'); |
| 86 | } else if ($c <= 1) { |
| 87 | $c = (float)($c * 100); |
| 88 | } |
| 89 | $this->c = $c; |
| 90 | return $this; |
| 91 | } |
| 92 | |
| 93 | /** |
| 94 | * Set the magenta value |
| 95 | * |
| 96 | * @param mixed $m |
| 97 | * @throws OutOfRangeException |
| 98 | * @return Cmyk |
| 99 | */ |
| 100 | public function setM(mixed $m): Cmyk |
| 101 | { |
| 102 | $m = (float)$m; |
| 103 | if (($m < 0) || ($m > 100)) { |
| 104 | throw new OutOfRangeException('Error: The value must be between 0 and 100'); |
| 105 | } else if ($m <= 1) { |
| 106 | $m = (float)($m * 100); |
| 107 | } |
| 108 | $this->m = $m; |
| 109 | return $this; |
| 110 | } |
| 111 | |
| 112 | /** |
| 113 | * Set the yellow value |
| 114 | * |
| 115 | * @param mixed $y |
| 116 | * @throws OutOfRangeException |
| 117 | * @return Cmyk |
| 118 | */ |
| 119 | public function setY(mixed $y): Cmyk |
| 120 | { |
| 121 | $y = (float)$y; |
| 122 | if (($y < 0) || ($y > 100)) { |
| 123 | throw new OutOfRangeException('Error: The value must be between 0 and 100'); |
| 124 | } else if ($y <= 1) { |
| 125 | $y = (float)($y * 100); |
| 126 | } |
| 127 | $this->y = $y; |
| 128 | return $this; |
| 129 | } |
| 130 | |
| 131 | /** |
| 132 | * Set the black value |
| 133 | * |
| 134 | * @param mixed $k |
| 135 | * @throws OutOfRangeException |
| 136 | * @return Cmyk |
| 137 | */ |
| 138 | public function setK(mixed $k): Cmyk |
| 139 | { |
| 140 | $k = (float)$k; |
| 141 | if (($k < 0) || ($k > 100)) { |
| 142 | throw new OutOfRangeException('Error: The value must be between 0 and 100'); |
| 143 | } else if ($k <= 1) { |
| 144 | $k = (float)($k * 100); |
| 145 | } |
| 146 | $this->k = $k; |
| 147 | return $this; |
| 148 | } |
| 149 | |
| 150 | /** |
| 151 | * Get the cyan value |
| 152 | * |
| 153 | * @return float |
| 154 | */ |
| 155 | public function getC(): float |
| 156 | { |
| 157 | return $this->c; |
| 158 | } |
| 159 | |
| 160 | /** |
| 161 | * Get the magenta value |
| 162 | * |
| 163 | * @return float |
| 164 | */ |
| 165 | public function getM(): float |
| 166 | { |
| 167 | return $this->m; |
| 168 | } |
| 169 | |
| 170 | /** |
| 171 | * Get the yellow value |
| 172 | * |
| 173 | * @return float |
| 174 | */ |
| 175 | public function getY(): float |
| 176 | { |
| 177 | return $this->y; |
| 178 | } |
| 179 | |
| 180 | /** |
| 181 | * Get the black value |
| 182 | * |
| 183 | * @return float |
| 184 | */ |
| 185 | public function getK(): float |
| 186 | { |
| 187 | return $this->k; |
| 188 | } |
| 189 | |
| 190 | /** |
| 191 | * Convert to RGB |
| 192 | * |
| 193 | * @return Rgb |
| 194 | */ |
| 195 | public function toRgb(): Rgb |
| 196 | { |
| 197 | // Calculate CMY. |
| 198 | $c = $this->c / 100; |
| 199 | $m = $this->m / 100; |
| 200 | $y = $this->y / 100; |
| 201 | $k = $this->k / 100; |
| 202 | |
| 203 | $cyan = (($c * (1 - $k)) + $k); |
| 204 | $magenta = (($m * (1 - $k)) + $k); |
| 205 | $yellow = (($y * (1 - $k)) + $k); |
| 206 | |
| 207 | // Calculate RGB. |
| 208 | $r = (int)round((1 - $cyan) * 255); |
| 209 | $g = (int)round((1 - $magenta) * 255); |
| 210 | $b = (int)round((1 - $yellow) * 255); |
| 211 | |
| 212 | return new Rgb($r, $g, $b); |
| 213 | } |
| 214 | |
| 215 | /** |
| 216 | * Convert to Gray |
| 217 | * |
| 218 | * @return Grayscale |
| 219 | */ |
| 220 | public function toGray(): Grayscale |
| 221 | { |
| 222 | return new Grayscale($this->k); |
| 223 | } |
| 224 | |
| 225 | /** |
| 226 | * Convert to array |
| 227 | * |
| 228 | * @param bool $assoc |
| 229 | * @return array |
| 230 | */ |
| 231 | public function toArray(bool $assoc = true): array |
| 232 | { |
| 233 | $cmyk = []; |
| 234 | |
| 235 | if ($assoc) { |
| 236 | $cmyk['c'] = $this->c; |
| 237 | $cmyk['m'] = $this->m; |
| 238 | $cmyk['y'] = $this->y; |
| 239 | $cmyk['k'] = $this->k; |
| 240 | } else { |
| 241 | $cmyk[] = $this->c; |
| 242 | $cmyk[] = $this->m; |
| 243 | $cmyk[] = $this->y; |
| 244 | $cmyk[] = $this->k; |
| 245 | } |
| 246 | |
| 247 | return $cmyk; |
| 248 | } |
| 249 | |
| 250 | /** |
| 251 | * Convert to readable string |
| 252 | * |
| 253 | * @param ?string $format |
| 254 | * @return string |
| 255 | */ |
| 256 | public function render(?string $format = null): string |
| 257 | { |
| 258 | return match ($format) { |
| 259 | self::COMMA => $this->c . ', ' . $this->m . ', ' . $this->y . ', ' . $this->k, |
| 260 | self::CSS => $this->toRgb()->render($format), |
| 261 | self::PERCENT => round(($this->c / 100), 2) . ' ' . round(($this->m / 100), 2) . ' ' . |
| 262 | round(($this->y / 100), 2) . ' ' . round(($this->k / 100), 2), |
| 263 | default => $this->c . ' ' . $this->m . ' ' . $this->y . ' ' . $this->k, |
| 264 | }; |
| 265 | } |
| 266 | |
| 267 | /** |
| 268 | * Method to print the color object |
| 269 | * |
| 270 | * @return string |
| 271 | */ |
| 272 | public function __toString() |
| 273 | { |
| 274 | return $this->render(self::PERCENT); |
| 275 | } |
| 276 | |
| 277 | /** |
| 278 | * Get the valid channel names |
| 279 | * |
| 280 | * @return array |
| 281 | */ |
| 282 | protected function channels(): array |
| 283 | { |
| 284 | return ['c', 'm', 'y', 'k']; |
| 285 | } |
| 286 | |
| 287 | } |