wordpress-seo / vendor_prefixed / chillerlan / php-qrcode / src / Output / QRImage.php

QRImage.php in Yoast SEO – Advanced SEO with real-time guidance and built-in AI 18.4, at vendor_prefixed/chillerlan/php-qrcode/src/Output/QRImage.php

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1	<?php
2
3	/**
4	* Class QRImage
5	*
6	* @filesource QRImage.php
7	* @created 05.12.2015
8	* @package chillerlan\QRCode\Output
9	* @author Smiley <smiley@chillerlan.net>
10	* @copyright 2015 Smiley
11	* @license MIT
12	*/
13	namespace YoastSEO_Vendor\chillerlan\QRCode\Output;
14
15	use YoastSEO_Vendor\chillerlan\QRCode\QRCode;
16	use YoastSEO_Vendor\chillerlan\QRCode\Data\QRMatrix;
17	/**
18	* Converts the matrix into images, raw or base64 output
19	*/
20	class QRImage extends \YoastSEO_Vendor\chillerlan\QRCode\Output\QROutputAbstract
21	{
22	const transparencyTypes = [\YoastSEO_Vendor\chillerlan\QRCode\QRCode::OUTPUT_IMAGE_PNG, \YoastSEO_Vendor\chillerlan\QRCode\QRCode::OUTPUT_IMAGE_GIF];
23	protected $moduleValues = [
24	// light
25	\YoastSEO_Vendor\chillerlan\QRCode\Data\QRMatrix::M_DATA => [255, 255, 255],
26	\YoastSEO_Vendor\chillerlan\QRCode\Data\QRMatrix::M_FINDER => [255, 255, 255],
27	\YoastSEO_Vendor\chillerlan\QRCode\Data\QRMatrix::M_SEPARATOR => [255, 255, 255],
28	\YoastSEO_Vendor\chillerlan\QRCode\Data\QRMatrix::M_ALIGNMENT => [255, 255, 255],
29	\YoastSEO_Vendor\chillerlan\QRCode\Data\QRMatrix::M_TIMING => [255, 255, 255],
30	\YoastSEO_Vendor\chillerlan\QRCode\Data\QRMatrix::M_FORMAT => [255, 255, 255],
31	\YoastSEO_Vendor\chillerlan\QRCode\Data\QRMatrix::M_VERSION => [255, 255, 255],
32	\YoastSEO_Vendor\chillerlan\QRCode\Data\QRMatrix::M_QUIETZONE => [255, 255, 255],
33	\YoastSEO_Vendor\chillerlan\QRCode\Data\QRMatrix::M_TEST => [255, 255, 255],
34	// dark
35	\YoastSEO_Vendor\chillerlan\QRCode\Data\QRMatrix::M_DARKMODULE << 8 => [0, 0, 0],
36	\YoastSEO_Vendor\chillerlan\QRCode\Data\QRMatrix::M_DATA << 8 => [0, 0, 0],
37	\YoastSEO_Vendor\chillerlan\QRCode\Data\QRMatrix::M_FINDER << 8 => [0, 0, 0],
38	\YoastSEO_Vendor\chillerlan\QRCode\Data\QRMatrix::M_ALIGNMENT << 8 => [0, 0, 0],
39	\YoastSEO_Vendor\chillerlan\QRCode\Data\QRMatrix::M_TIMING << 8 => [0, 0, 0],
40	\YoastSEO_Vendor\chillerlan\QRCode\Data\QRMatrix::M_FORMAT << 8 => [0, 0, 0],
41	\YoastSEO_Vendor\chillerlan\QRCode\Data\QRMatrix::M_VERSION << 8 => [0, 0, 0],
42	\YoastSEO_Vendor\chillerlan\QRCode\Data\QRMatrix::M_TEST << 8 => [0, 0, 0],
43	];
44	/**
45	* @see imagecreatetruecolor()
46	* @var resource
47	*/
48	protected $image;
49	/**
50	* @var int
51	*/
52	protected $scale;
53	/**
54	* @var int
55	*/
56	protected $length;
57	/**
58	* @see imagecolorallocate()
59	* @var int
60	*/
61	protected $background;
62	/**
63	* @return string
64	* @throws \chillerlan\QRCode\Output\QRCodeOutputException
65	*/
66	public function dump()
67	{
68	if ($this->options->cachefile !== null && !\is_writable(\dirname($this->options->cachefile))) {
69	throw new \YoastSEO_Vendor\chillerlan\QRCode\Output\QRCodeOutputException('Could not write data to cache file: ' . $this->options->cachefile);
70	}
71	$this->setImage();
72	$moduleValues = \is_array($this->options->moduleValues[\YoastSEO_Vendor\chillerlan\QRCode\Data\QRMatrix::M_DATA]) ? $this->options->moduleValues : $this->moduleValues;
73	foreach ($this->matrix->matrix() as $y => $row) {
74	foreach ($row as $x => $pixel) {
75	$this->setPixel($x, $y, \imagecolorallocate($this->image, ...$moduleValues[$pixel]));
76	}
77	}
78	$imageData = $this->dumpImage();
79	if ((bool) $this->options->imageBase64) {
80	$imageData = 'data:image/' . $this->options->outputType . ';base64,' . \base64_encode($imageData);
81	}
82	return $imageData;
83	}
84	/**
85	* @return void
86	*/
87	protected function setImage()
88	{
89	$this->scale = $this->options->scale;
90	$this->length = $this->moduleCount * $this->scale;
91	$this->image = \imagecreatetruecolor($this->length, $this->length);
92	$this->background = \imagecolorallocate($this->image, ...$this->options->imageTransparencyBG);
93	if ((bool) $this->options->imageTransparent && \in_array($this->options->outputType, $this::transparencyTypes, \true)) {
94	\imagecolortransparent($this->image, $this->background);
95	}
96	\imagefilledrectangle($this->image, 0, 0, $this->length, $this->length, $this->background);
97	}
98	/**
99	* @param $x
100	* @param $y
101	* @param $color
102	* @return void
103	*/
104	protected function setPixel($x, $y, $color)
105	{
106	\imagefilledrectangle($this->image, $x * $this->scale, $y * $this->scale, ($x + 1) * $this->scale - 1, ($y + 1) * $this->scale - 1, $color);
107	}
108	/**
109	* @return string
110	* @throws \chillerlan\QRCode\Output\QRCodeOutputException
111	*/
112	protected function dumpImage()
113	{
114	\ob_start();
115	try {
116	\call_user_func([$this, $this->options->outputType !== null ? $this->options->outputType : \YoastSEO_Vendor\chillerlan\QRCode\QRCode::OUTPUT_IMAGE_PNG]);
117	} catch (\Exception $e) {
118	throw new \YoastSEO_Vendor\chillerlan\QRCode\Output\QRCodeOutputException($e->getMessage());
119	}
120	// @codeCoverageIgnoreEnd
121	$imageData = \ob_get_contents();
122	\imagedestroy($this->image);
123	\ob_end_clean();
124	return $imageData;
125	}
126	/**
127	* @return void
128	*/
129	protected function png()
130	{
131	\imagepng($this->image, $this->options->cachefile, \in_array($this->options->pngCompression, \range(-1, 9), \true) ? $this->options->pngCompression : -1);
132	}
133	/**
134	* Jiff - like... JitHub!
135	* @return void
136	*/
137	protected function gif()
138	{
139	\imagegif($this->image, $this->options->cachefile);
140	}
141	/**
142	* @return void
143	*/
144	protected function jpg()
145	{
146	\imagejpeg($this->image, $this->options->cachefile, \in_array($this->options->jpegQuality, \range(0, 100), \true) ? $this->options->jpegQuality : 85);
147	}
148	}
149