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| 1 | <?php |
| 2 | /** |
| 3 | * Pop PHP Framework (http://www.popphp.org/) |
| 4 | * |
| 5 | * @link https://github.com/popphp/popphp-framework |
| 6 | * @author Nick Sagona, III <dev@nolainteractive.com> |
| 7 | * @copyright Copyright (c) 2009-2023 NOLA Interactive, LLC. (http://www.nolainteractive.com) |
| 8 | * @license http://www.popphp.org/license New BSD License |
| 9 | */ |
| 10 | |
| 11 | /** |
| 12 | * @namespace |
| 13 | */ |
| 14 | namespace Pop\Image\Color; |
| 15 | |
| 16 | /** |
| 17 | * Image gray color class |
| 18 | * |
| 19 | * @category Pop |
| 20 | * @package Pop\Image |
| 21 | * @author Nick Sagona, III <dev@nolainteractive.com> |
| 22 | * @copyright Copyright (c) 2009-2023 NOLA Interactive, LLC. (http://www.nolainteractive.com) |
| 23 | * @license http://www.popphp.org/license New BSD License |
| 24 | * @version 3.4.0 |
| 25 | */ |
| 26 | class Gray extends AbstractColor |
| 27 | { |
| 28 | |
| 29 | /** |
| 30 | * Gray |
| 31 | * @var float |
| 32 | */ |
| 33 | protected $gray = 0; |
| 34 | |
| 35 | /** |
| 36 | * Constructor |
| 37 | * |
| 38 | * Instantiate a PDF Gray Color object |
| 39 | * |
| 40 | * @param mixed $gray 0 - 100 |
| 41 | */ |
| 42 | public function __construct($gray) |
| 43 | { |
| 44 | $this->setGray($gray); |
| 45 | } |
| 46 | |
| 47 | /** |
| 48 | * Set the gray value |
| 49 | * |
| 50 | * @param mixed $gray |
| 51 | * @throws \OutOfRangeException |
| 52 | * @return Gray |
| 53 | */ |
| 54 | public function setGray($gray) |
| 55 | { |
| 56 | if (((int)$gray < 0) || ((int)$gray > 100)) { |
| 57 | throw new \OutOfRangeException('Error: The value must be between 0 and 100'); |
| 58 | } |
| 59 | $this->gray = (int)$gray; |
| 60 | return $this; |
| 61 | } |
| 62 | |
| 63 | /** |
| 64 | * Get the gray value |
| 65 | * |
| 66 | * @return float |
| 67 | */ |
| 68 | public function getGray() |
| 69 | { |
| 70 | return $this->gray; |
| 71 | } |
| 72 | |
| 73 | /** |
| 74 | * Convert to CMYK |
| 75 | * |
| 76 | * @return Cmyk |
| 77 | */ |
| 78 | public function toCmyk() |
| 79 | { |
| 80 | return new Cmyk(0, 0, 0, $this->gray); |
| 81 | } |
| 82 | |
| 83 | /** |
| 84 | * Convert to RGB |
| 85 | * |
| 86 | * @return Rgb |
| 87 | */ |
| 88 | public function toRgb() |
| 89 | { |
| 90 | return new Rgb($this->gray, $this->gray, $this->gray); |
| 91 | } |
| 92 | |
| 93 | /** |
| 94 | * Method to print the color object |
| 95 | * |
| 96 | * @return string |
| 97 | */ |
| 98 | public function __toString() |
| 99 | { |
| 100 | return (string)$this->gray; |
| 101 | } |
| 102 | |
| 103 | } |