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1 |
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 1.0.2 |
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 | } |