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| 1 | <?php |
| 2 | /** |
| 3 | * Pop PHP Framework (https://www.popphp.org/) |
| 4 | * |
| 5 | * @link https://github.com/popphp/popphp-framework |
| 6 | * @author Nick Sagona, III <dev@noladev.com> |
| 7 | * @copyright Copyright (c) 2009-2023 NOLA Interactive, LLC. |
| 8 | * @license https://www.popphp.org/license New BSD License |
| 9 | */ |
| 10 | |
| 11 | /** |
| 12 | * @namespace |
| 13 | */ |
| 14 | namespace Pop\Color\Color; |
| 15 | |
| 16 | use OutOfRangeException; |
| 17 | |
| 18 | /** |
| 19 | * Image CMYK color class |
| 20 | * |
| 21 | * @category Pop |
| 22 | * @package Pop\Image |
| 23 | * @author Nick Sagona, III <dev@noladev.com> |
| 24 | * @copyright Copyright (c) 2009-2023 NOLA Interactive, LLC. |
| 25 | * @license https://www.popphp.org/license New BSD License |
| 26 | * @version 1.0.3 |
| 27 | */ |
| 28 | class Cmyk extends AbstractColor implements \ArrayAccess |
| 29 | { |
| 30 | |
| 31 | /** |
| 32 | * Cyan |
| 33 | * @var float |
| 34 | */ |
| 35 | protected float $c = 0; |
| 36 | |
| 37 | /** |
| 38 | * Magenta |
| 39 | * @var float |
| 40 | */ |
| 41 | protected float $m = 0; |
| 42 | |
| 43 | /** |
| 44 | * Yellow |
| 45 | * @var float |
| 46 | */ |
| 47 | protected float $y = 0; |
| 48 | |
| 49 | /** |
| 50 | * Black |
| 51 | * @var float |
| 52 | */ |
| 53 | protected float $k = 0; |
| 54 | |
| 55 | /** |
| 56 | * Constructor |
| 57 | * |
| 58 | * Instantiate a PERCENT CMYK Color object |
| 59 | * |
| 60 | * @param mixed $c 0 - 100 |
| 61 | * @param mixed $m 0 - 100 |
| 62 | * @param mixed $y 0 - 100 |
| 63 | * @param mixed $k 0 - 100 |
| 64 | */ |
| 65 | public function __construct(mixed $c, mixed $m, mixed $y, mixed $k) |
| 66 | { |
| 67 | $this->setC($c); |
| 68 | $this->setM($m); |
| 69 | $this->setY($y); |
| 70 | $this->setK($k); |
| 71 | } |
| 72 | |
| 73 | /** |
| 74 | * Set the cyan value |
| 75 | * |
| 76 | * @param mixed $c |
| 77 | * @throws OutOfRangeException |
| 78 | * @return Cmyk |
| 79 | */ |
| 80 | public function setC(mixed $c): Cmyk |
| 81 | { |
| 82 | $c = (float)$c; |
| 83 | if (($c < 0) || ($c > 100)) { |
| 84 | throw new OutOfRangeException('Error: The value must be between 0 and 100'); |
| 85 | } else if ($c < 1) { |
| 86 | $c = (float)($c * 100); |
| 87 | } |
| 88 | $this->c = $c; |
| 89 | return $this; |
| 90 | } |
| 91 | |
| 92 | /** |
| 93 | * Set the magenta value |
| 94 | * |
| 95 | * @param mixed $m |
| 96 | * @throws OutOfRangeException |
| 97 | * @return Cmyk |
| 98 | */ |
| 99 | public function setM(mixed $m): Cmyk |
| 100 | { |
| 101 | $m = (float)$m; |
| 102 | if (($m < 0) || ($m > 100)) { |
| 103 | throw new OutOfRangeException('Error: The value must be between 0 and 100'); |
| 104 | } else if ($m < 1) { |
| 105 | $m = (float)($m * 100); |
| 106 | } |
| 107 | $this->m = $m; |
| 108 | return $this; |
| 109 | } |
| 110 | |
| 111 | /** |
| 112 | * Set the yellow value |
| 113 | * |
| 114 | * @param mixed $y |
| 115 | * @throws OutOfRangeException |
| 116 | * @return Cmyk |
| 117 | */ |
| 118 | public function setY(mixed $y): Cmyk |
| 119 | { |
| 120 | $y = (float)$y; |
| 121 | if (((int)$y < 0) || ((int)$y > 100)) { |
| 122 | throw new OutOfRangeException('Error: The value must be between 0 and 100'); |
| 123 | } else if ($y < 1) { |
| 124 | $y = (float)($y * 100); |
| 125 | } |
| 126 | $this->y = $y; |
| 127 | return $this; |
| 128 | } |
| 129 | |
| 130 | /** |
| 131 | * Set the black value |
| 132 | * |
| 133 | * @param mixed $k |
| 134 | * @throws OutOfRangeException |
| 135 | * @return Cmyk |
| 136 | */ |
| 137 | public function setK(mixed $k): Cmyk |
| 138 | { |
| 139 | if (((int)$k < 0) || ((int)$k > 100)) { |
| 140 | throw new OutOfRangeException('Error: The value must be between 0 and 100'); |
| 141 | } else if ($k < 1) { |
| 142 | $k = (float)($k * 100); |
| 143 | } |
| 144 | $this->k = $k; |
| 145 | return $this; |
| 146 | } |
| 147 | |
| 148 | /** |
| 149 | * Get the cyan value |
| 150 | * |
| 151 | * @return float |
| 152 | */ |
| 153 | public function getC(): float |
| 154 | { |
| 155 | return $this->c; |
| 156 | } |
| 157 | |
| 158 | /** |
| 159 | * Get the magenta value |
| 160 | * |
| 161 | * @return float |
| 162 | */ |
| 163 | public function getM(): float |
| 164 | { |
| 165 | return $this->m; |
| 166 | } |
| 167 | |
| 168 | /** |
| 169 | * Get the yellow value |
| 170 | * |
| 171 | * @return float |
| 172 | */ |
| 173 | public function getY(): float |
| 174 | { |
| 175 | return $this->y; |
| 176 | } |
| 177 | |
| 178 | /** |
| 179 | * Get the black value |
| 180 | * |
| 181 | * @return float |
| 182 | */ |
| 183 | public function getK(): float |
| 184 | { |
| 185 | return $this->k; |
| 186 | } |
| 187 | |
| 188 | /** |
| 189 | * Convert to RGB |
| 190 | * |
| 191 | * @return Rgb |
| 192 | */ |
| 193 | public function toRgb(): Rgb |
| 194 | { |
| 195 | // Calculate CMY. |
| 196 | $c = $this->c / 100; |
| 197 | $m = $this->m / 100; |
| 198 | $y = $this->y / 100; |
| 199 | $k = $this->k / 100; |
| 200 | |
| 201 | $cyan = (($c * (1 - $k)) + $k); |
| 202 | $magenta = (($m * (1 - $k)) + $k); |
| 203 | $yellow = (($y * (1 - $k)) + $k); |
| 204 | |
| 205 | // Calculate RGB. |
| 206 | $r = round((1 - $cyan) * 255); |
| 207 | $g = round((1 - $magenta) * 255); |
| 208 | $b = round((1 - $yellow) * 255); |
| 209 | |
| 210 | return new Rgb($r, $g, $b); |
| 211 | } |
| 212 | |
| 213 | /** |
| 214 | * Convert to Gray |
| 215 | * |
| 216 | * @return Grayscale |
| 217 | */ |
| 218 | public function toGray(): Grayscale |
| 219 | { |
| 220 | return new Grayscale($this->k); |
| 221 | } |
| 222 | |
| 223 | /** |
| 224 | * Convert to array |
| 225 | * |
| 226 | * @param bool $assoc |
| 227 | * @return array |
| 228 | */ |
| 229 | public function toArray(bool $assoc = true): array |
| 230 | { |
| 231 | $cmyk = []; |
| 232 | |
| 233 | if ($assoc) { |
| 234 | $cmyk['c'] = $this->c; |
| 235 | $cmyk['m'] = $this->m; |
| 236 | $cmyk['y'] = $this->y; |
| 237 | $cmyk['k'] = $this->k; |
| 238 | } else { |
| 239 | $cmyk[] = $this->c; |
| 240 | $cmyk[] = $this->m; |
| 241 | $cmyk[] = $this->y; |
| 242 | $cmyk[] = $this->k; |
| 243 | } |
| 244 | |
| 245 | return $cmyk; |
| 246 | } |
| 247 | |
| 248 | /** |
| 249 | * Convert to readable string |
| 250 | * |
| 251 | * @param ?string $format |
| 252 | * @return string |
| 253 | */ |
| 254 | public function render(?string $format = null): string |
| 255 | { |
| 256 | if ($format == self::COMMA) { |
| 257 | return $this->c . ', ' . $this->m . ', ' . $this->y . ', ' . $this->k; |
| 258 | } else if ($format == self::CSS) { |
| 259 | $rgb = $this->toRgb(); |
| 260 | return $rgb->render($format); |
| 261 | } else if ($format == self::PERCENT) { |
| 262 | return round(($this->c / 100), 2) . ' ' . round(($this->m / 100), 2) . ' ' . |
| 263 | round(($this->y / 100), 2) . ' ' . round(($this->k / 100), 2); |
| 264 | } else { |
| 265 | return $this->c . ' ' . $this->m . ' ' . $this->y . ' ' . $this->k; |
| 266 | } |
| 267 | } |
| 268 | |
| 269 | /** |
| 270 | * Method to print the color object |
| 271 | * |
| 272 | * @return string |
| 273 | */ |
| 274 | public function __toString() |
| 275 | { |
| 276 | return $this->render(self::PERCENT); |
| 277 | } |
| 278 | |
| 279 | /** |
| 280 | * Magic method to set the color value |
| 281 | * |
| 282 | * @param string $name |
| 283 | * @param mixed $value |
| 284 | * @throws Exception |
| 285 | * @return void |
| 286 | */ |
| 287 | public function __set(string $name, mixed $value): void |
| 288 | { |
| 289 | $this->offsetSet($name, $value); |
| 290 | } |
| 291 | |
| 292 | /** |
| 293 | * Magic method to return the color value |
| 294 | * |
| 295 | * @param string $name |
| 296 | * @throws Exception |
| 297 | * @return mixed |
| 298 | */ |
| 299 | public function __get(string $name): mixed |
| 300 | { |
| 301 | return $this->offsetGet($name); |
| 302 | } |
| 303 | |
| 304 | /** |
| 305 | * Magic method to return whether the color value exists |
| 306 | * |
| 307 | * @param string $name |
| 308 | * @return bool |
| 309 | */ |
| 310 | public function __isset(string $name): bool |
| 311 | { |
| 312 | return $this->offsetExists($name); |
| 313 | } |
| 314 | |
| 315 | /** |
| 316 | * Magic method to unset color value |
| 317 | * |
| 318 | * @param string $name |
| 319 | * @throws Exception |
| 320 | * @return void |
| 321 | */ |
| 322 | public function __unset(string $name): void |
| 323 | { |
| 324 | throw new Exception('You cannot unset the properties of this color object.'); |
| 325 | } |
| 326 | |
| 327 | /** |
| 328 | * ArrayAccess offsetExists |
| 329 | * |
| 330 | * @param mixed $offset |
| 331 | * @return bool |
| 332 | */ |
| 333 | public function offsetExists(mixed $offset): bool |
| 334 | { |
| 335 | return (($offset == 'c') || ($offset == 'm') || ($offset == 'y') || ($offset == 'm')); |
| 336 | } |
| 337 | |
| 338 | /** |
| 339 | * ArrayAccess offsetGet |
| 340 | * |
| 341 | * @param mixed $offset |
| 342 | * @throws Exception |
| 343 | * @return mixed |
| 344 | */ |
| 345 | public function offsetGet(mixed $offset): mixed |
| 346 | { |
| 347 | switch ($offset) { |
| 348 | case 'c': |
| 349 | return $this->getC(); |
| 350 | break; |
| 351 | case 'm': |
| 352 | return $this->getM(); |
| 353 | break; |
| 354 | case 'y': |
| 355 | return $this->getY(); |
| 356 | break; |
| 357 | case 'k': |
| 358 | return $this->getK(); |
| 359 | break; |
| 360 | default: |
| 361 | throw new Exception("Error: You can only use 'c', 'm', 'y' or 'k'."); |
| 362 | } |
| 363 | } |
| 364 | |
| 365 | /** |
| 366 | * ArrayAccess offsetSet |
| 367 | * |
| 368 | * @param mixed $offset |
| 369 | * @param mixed $value |
| 370 | * @throws Exception |
| 371 | * @return void |
| 372 | */ |
| 373 | public function offsetSet(mixed $offset, mixed $value): void |
| 374 | { |
| 375 | switch ($offset) { |
| 376 | case 'c': |
| 377 | $this->setC($value); |
| 378 | break; |
| 379 | case 'm': |
| 380 | $this->setM($value); |
| 381 | break; |
| 382 | case 'y': |
| 383 | $this->setY($value); |
| 384 | break; |
| 385 | case 'k': |
| 386 | $this->setK($value); |
| 387 | break; |
| 388 | default: |
| 389 | throw new Exception("Error: You can only use 'c', 'm', 'y' or 'k'."); |
| 390 | } |
| 391 | } |
| 392 | |
| 393 | /** |
| 394 | * ArrayAccess offsetUnset |
| 395 | * |
| 396 | * @param mixed $offset |
| 397 | * @throws Exception |
| 398 | * @return void |
| 399 | */ |
| 400 | public function offsetUnset(mixed $offset): void |
| 401 | { |
| 402 | throw new Exception('You cannot unset the properties of this color object.'); |
| 403 | } |
| 404 | |
| 405 | } |