woocommerce-pos / vendor_prefixed / chillerlan / php-qrcode / src / Common / IMagickLuminanceSource.php

IMagickLuminanceSource.php in WCPOS – Point of Sale (POS) plugin for WooCommerce 1.10.20, at vendor_prefixed/chillerlan/php-qrcode/src/Common/IMagickLuminanceSource.php

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1	<?php
2
3	/**
4	* Class IMagickLuminanceSource
5	*
6	* @created 17.01.2021
7	* @author Ashot Khanamiryan
8	* @author Smiley <[email protected]>
9	* @copyright 2021 Smiley
10	* @license MIT
11	*
12	* @noinspection PhpComposerExtensionStubsInspection
13	*/
14	namespace WCPOS\Vendor\chillerlan\QRCode\Common;
15
16	use WCPOS\Vendor\chillerlan\Settings\SettingsContainerInterface;
17	use Imagick;
18	use function count;
19	/**
20	* This class is used to help decode images from files which arrive as Imagick Resource
21	* It does not support rotation.
22	*/
23	class IMagickLuminanceSource extends LuminanceSourceAbstract
24	{
25	protected Imagick $imagick;
26	/**
27	* IMagickLuminanceSource constructor.
28	*/
29	public function __construct(Imagick $imagick, ?SettingsContainerInterface $options = null)
30	{
31	parent::__construct($imagick->getImageWidth(), $imagick->getImageHeight(), $options);
32	$this->imagick = $imagick;
33	if ($this->options->readerGrayscale) {
34	$this->imagick->setImageColorspace(Imagick::COLORSPACE_GRAY);
35	}
36	if ($this->options->readerInvertColors) {
37	$this->imagick->negateImage($this->options->readerGrayscale);
38	}
39	if ($this->options->readerIncreaseContrast) {
40	for ($i = 0; $i < 10; $i++) {
41	$this->imagick->contrastImage(\false);
42	// misleading docs
43	}
44	}
45	$this->setLuminancePixels();
46	}
47	/**
48	*
49	*/
50	protected function setLuminancePixels() : void
51	{
52	$pixels = $this->imagick->exportImagePixels(1, 1, $this->width, $this->height, 'RGB', Imagick::PIXEL_CHAR);
53	$count = count($pixels);
54	for ($i = 0; $i < $count; $i += 3) {
55	$this->setLuminancePixel($pixels[$i] & 0xff, $pixels[$i + 1] & 0xff, $pixels[$i + 2] & 0xff);
56	}
57	}
58	/** @inheritDoc */
59	public static function fromFile(string $path, ?SettingsContainerInterface $options = null) : self
60	{
61	return new self(new Imagick(self::checkFile($path)), $options);
62	}
63	/** @inheritDoc */
64	public static function fromBlob(string $blob, ?SettingsContainerInterface $options = null) : self
65	{
66	$im = new Imagick();
67	$im->readImageBlob($blob);
68	return new self($im, $options);
69	}
70	}
71