QRMatrix - Code Metrics - Inspection of ":octocat:" - chillerlan/php-qrcode - Measure and Improve Code Quality continuously with Scrutinizer

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Push — master ( 552d15...d4c1db )

by smiley

created 2020-04-05 18:52 UTC

QRMatrix F

↳ Parent: Project

Complexity

Total Complexity

Size/Duplication

Total Lines	556
Duplicated Lines	0 %

Importance

Changes	6
Bugs	0	Features	0

Metric	Value
eloc	271
dl	0
loc	556
rs	2.4
c	6
b	0
f	0
wmc	75

How to fix Complexity

<?php
/**
 * Class QRMatrix
 *
 * @filesource   QRMatrix.php
 * @created      15.11.2017
 * @package      chillerlan\QRCode\Data
 * @author       Smiley <[email protected]>
 * @copyright    2017 Smiley
 * @license      MIT
 */

namespace chillerlan\QRCode\Data;

use chillerlan\QRCode\QRCode;
use Closure;

use function array_fill, array_key_exists, array_push, array_unshift, count, floor, in_array, max, min, range;

/**
 * Holds a numerical representation of the final QR Code;
 * maps the ECC coded binary data and applies the mask pattern
 *
 * @see http://www.thonky.com/qr-code-tutorial/format-version-information
 */
final class QRMatrix{

	/** @var int */
	public const M_NULL       = 0x00;
	/** @var int */
	public const M_DARKMODULE = 0x02;
	/** @var int */
	public const M_DATA       = 0x04;
	/** @var int */
	public const M_FINDER     = 0x06;
	/** @var int */
	public const M_SEPARATOR  = 0x08;
	/** @var int */
	public const M_ALIGNMENT  = 0x0a;
	/** @var int */
	public const M_TIMING     = 0x0c;
	/** @var int */
	public const M_FORMAT     = 0x0e;
	/** @var int */
	public const M_VERSION    = 0x10;
	/** @var int */
	public const M_QUIETZONE  = 0x12;

#	public const M_LOGO       = 0x14; // @todo
	/** @var int */
	public const M_TEST       = 0xff;

	/**
	 * ISO/IEC 18004:2000 Annex E, Table E.1 - Row/column coordinates of center module of Alignment Patterns
	 *
	 * version -> pattern
	 *
	 * @var int[][]
	 */
	protected const alignmentPattern = [
		1  => [],
		2  => [6, 18],
		3  => [6, 22],
		4  => [6, 26],
		5  => [6, 30],
		6  => [6, 34],
		7  => [6, 22, 38],
		8  => [6, 24, 42],
		9  => [6, 26, 46],
		10 => [6, 28, 50],
		11 => [6, 30, 54],
		12 => [6, 32, 58],
		13 => [6, 34, 62],
		14 => [6, 26, 46, 66],
		15 => [6, 26, 48, 70],
		16 => [6, 26, 50, 74],
		17 => [6, 30, 54, 78],
		18 => [6, 30, 56, 82],
		19 => [6, 30, 58, 86],
		20 => [6, 34, 62, 90],
		21 => [6, 28, 50, 72,  94],
		22 => [6, 26, 50, 74,  98],
		23 => [6, 30, 54, 78, 102],
		24 => [6, 28, 54, 80, 106],
		25 => [6, 32, 58, 84, 110],
		26 => [6, 30, 58, 86, 114],
		27 => [6, 34, 62, 90, 118],
		28 => [6, 26, 50, 74,  98, 122],
		29 => [6, 30, 54, 78, 102, 126],
		30 => [6, 26, 52, 78, 104, 130],
		31 => [6, 30, 56, 82, 108, 134],
		32 => [6, 34, 60, 86, 112, 138],
		33 => [6, 30, 58, 86, 114, 142],
		34 => [6, 34, 62, 90, 118, 146],
		35 => [6, 30, 54, 78, 102, 126, 150],
		36 => [6, 24, 50, 76, 102, 128, 154],
		37 => [6, 28, 54, 80, 106, 132, 158],
		38 => [6, 32, 58, 84, 110, 136, 162],
		39 => [6, 26, 54, 82, 110, 138, 166],
		40 => [6, 30, 58, 86, 114, 142, 170],
	];

	/**
	 * ISO/IEC 18004:2000 Annex D, Table D.1 - Version information bit stream for each version
	 *
	 * no version pattern for QR Codes < 7
	 *
	 * @var int[]
	 */
	protected const versionPattern = [
		7  => 0b000111110010010100,
		8  => 0b001000010110111100,
		9  => 0b001001101010011001,
		10 => 0b001010010011010011,
		11 => 0b001011101111110110,
		12 => 0b001100011101100010,
		13 => 0b001101100001000111,
		14 => 0b001110011000001101,
		15 => 0b001111100100101000,
		16 => 0b010000101101111000,
		17 => 0b010001010001011101,
		18 => 0b010010101000010111,
		19 => 0b010011010100110010,
		20 => 0b010100100110100110,
		21 => 0b010101011010000011,
		22 => 0b010110100011001001,
		23 => 0b010111011111101100,
		24 => 0b011000111011000100,
		25 => 0b011001000111100001,
		26 => 0b011010111110101011,
		27 => 0b011011000010001110,
		28 => 0b011100110000011010,
		29 => 0b011101001100111111,
		30 => 0b011110110101110101,
		31 => 0b011111001001010000,
		32 => 0b100000100111010101,
		33 => 0b100001011011110000,
		34 => 0b100010100010111010,
		35 => 0b100011011110011111,
		36 => 0b100100101100001011,
		37 => 0b100101010000101110,
		38 => 0b100110101001100100,
		39 => 0b100111010101000001,
		40 => 0b101000110001101001,
	];

	/**
	 * ISO/IEC 18004:2000 Section 8.9 - Format Information
	 *
	 * ECC level -> mask pattern
	 *
	 * @var int[][]
	 */
	protected const formatPattern = [
		[ // L
			0b111011111000100,
			0b111001011110011,
			0b111110110101010,
			0b111100010011101,
			0b110011000101111,
			0b110001100011000,
			0b110110001000001,
			0b110100101110110,
		],
		[ // M
			0b101010000010010,
			0b101000100100101,
			0b101111001111100,
			0b101101101001011,
			0b100010111111001,
			0b100000011001110,
			0b100111110010111,
			0b100101010100000,
		],
		[ // Q
			0b011010101011111,
			0b011000001101000,
			0b011111100110001,
			0b011101000000110,
			0b010010010110100,
			0b010000110000011,
			0b010111011011010,
			0b010101111101101,
		],
		[ // H
			0b001011010001001,
			0b001001110111110,
			0b001110011100111,
			0b001100111010000,
			0b000011101100010,
			0b000001001010101,
			0b000110100001100,
			0b000100000111011,
		],
	];

	/**
	 * the current QR Code version number
	 */
	protected int $version;

	/**
	 * the current ECC level
	 */
	protected int $eclevel;

	/**
	 * the used mask pattern, set via QRMatrix::mapData()
	 */
	protected int $maskPattern = QRCode::MASK_PATTERN_AUTO;

	/**
	 * the size (side length) of the matrix
	 */
	protected int $moduleCount;

	/**
	 * the actual matrix data array
	 *
	 * @var int[][]
	 */
	protected array $matrix;

	/**
	 * QRMatrix constructor.
	 *
	 * @throws \chillerlan\QRCode\Data\QRCodeDataException
	 */
	public function __construct(int $version, int $eclevel){

		if(!in_array($version, range(1, 40), true)){
			throw new QRCodeDataException('invalid QR Code version');
		}

		if(!array_key_exists($eclevel, QRCode::ECC_MODES)){
			throw new QRCodeDataException('invalid ecc level');
		}

		$this->version     = $version;
		$this->eclevel     = $eclevel;
		$this->moduleCount = $this->version * 4 + 17;
		$this->matrix      = array_fill(0, $this->moduleCount, array_fill(0, $this->moduleCount, $this::M_NULL));
	}

	/**
	 * shortcut to initialize the matrix
	 */
	public function init(int $maskPattern, bool $test = null):QRMatrix{
		return $this
			->setFinderPattern()
			->setSeparators()
			->setAlignmentPattern()
			->setTimingPattern()
			->setVersionNumber($test)
			->setFormatInfo($maskPattern, $test)
			->setDarkModule()
		;
	}

	/**
	 * Returns the data matrix
	 *
	 * @return int[][]
	 */
	public function matrix():array{
		return $this->matrix;
	}

	/**
	 * Returns the current version number
	 */
	public function version():int{
		return $this->version;
	}

	/**
	 * Returns the current ECC level
	 */
	public function eccLevel():int{
		return $this->eclevel;
	}

	/**
	 * Returns the current mask pattern
	 */
	public function maskPattern():int{
		return $this->maskPattern;
	}

	/**
	 * Returns the absoulute size of the matrix, including quiet zone (after setting it).
	 *
	 * size = version * 4 + 17 [ + 2 * quietzone size]
	 */
	public function size():int{
		return $this->moduleCount;
	}

	/**
	 * Returns the value of the module at position [$x, $y]
	 */
	public function get(int $x, int $y):int{
		return $this->matrix[$y][$x];
	}

	/**
	 * Sets the $M_TYPE value for the module at position [$x, $y]
	 *
	 *   true  => $M_TYPE << 8
	 *   false => $M_TYPE
	 */
	public function set(int $x, int $y, bool $value, int $M_TYPE):QRMatrix{
		$this->matrix[$y][$x] = $M_TYPE << ($value ? 8 : 0);

		return $this;
	}

	/**
	 * Checks whether a module is true (dark) or false (light)
	 *
	 *   true  => $value >> 8 === $M_TYPE
	 *            $value >> 8 > 0
	 *
	 *   false => $value === $M_TYPE
	 *            $value >> 8 === 0
	 */
	public function check(int $x, int $y):bool{
		return $this->matrix[$y][$x] >> 8 > 0;
	}


	/**
	 * Sets the "dark module", that is always on the same position 1x1px away from the bottom left finder
	 */
	public function setDarkModule():QRMatrix{
		$this->set(8, 4 * $this->version + 9, true, $this::M_DARKMODULE);

		return $this;
	}

	/**
	 * Draws the 7x7 finder patterns in the corners top left/right and bottom left
	 *
	 * ISO/IEC 18004:2000 Section 7.3.2
	 */
	public function setFinderPattern():QRMatrix{

		$pos = [
			[0, 0], // top left
			[$this->moduleCount - 7, 0], // bottom left
			[0, $this->moduleCount - 7], // top right
		];

		foreach($pos as $c){
			for($y = 0; $y < 7; $y++){
				for($x = 0; $x < 7; $x++){
					$this->set(
						$c[0] + $y,
						$c[1] + $x,
						!(($x > 0 && $x < 6 && ($y === 1 || $y === 5)) || ($y > 0 && $y < 6 && ($x === 1 || $x === 5))),
						$this::M_FINDER
					);
				}
			}
		}

		return $this;
	}

	/**
	 * Draws the separator lines around the finder patterns
	 *
	 * ISO/IEC 18004:2000 Section 7.3.3
	 */
	public function setSeparators():QRMatrix{

		$h = [
			[7, 0],
			[$this->moduleCount - 8, 0],
			[7, $this->moduleCount - 8],
		];

		$v = [
			[7, 7],
			[$this->moduleCount - 1, 7],
			[7, $this->moduleCount - 8],
		];

		for($c = 0; $c < 3; $c++){
			for($i = 0; $i < 8; $i++){
				$this->set($h[$c][0]     , $h[$c][1] + $i, false, $this::M_SEPARATOR);
				$this->set($v[$c][0] - $i, $v[$c][1]     , false, $this::M_SEPARATOR);
			}
		}

		return $this;
	}


	/**
	 * Draws the 5x5 alignment patterns
	 *
	 * ISO/IEC 18004:2000 Section 7.3.5
	 */
	public function setAlignmentPattern():QRMatrix{

		foreach($this::alignmentPattern[$this->version] as $y){
			foreach($this::alignmentPattern[$this->version] as $x){

				// skip existing patterns
				if($this->matrix[$y][$x] !== $this::M_NULL){
					continue;
				}

				for($ry = -2; $ry <= 2; $ry++){
					for($rx = -2; $rx <= 2; $rx++){
						$v = ($ry === 0 && $rx === 0) || $ry === 2 || $ry === -2 || $rx === 2 || $rx === -2;

						$this->set($x + $rx, $y + $ry, $v, $this::M_ALIGNMENT);
					}
				}

			}
		}

		return $this;
	}


	/**
	 * Draws the timing pattern (h/v checkered line between the finder patterns)
	 *
	 * ISO/IEC 18004:2000 Section 7.3.4
	 */
	public function setTimingPattern():QRMatrix{

		foreach(range(8, $this->moduleCount - 8 - 1) as $i){

			if($this->matrix[6][$i] !== $this::M_NULL || $this->matrix[$i][6] !== $this::M_NULL){
				continue;
			}

			$v = $i % 2 === 0;

			$this->set($i, 6, $v, $this::M_TIMING); // h
			$this->set(6, $i, $v, $this::M_TIMING); // v
		}

		return $this;
	}

	/**
	 * Draws the version information, 2x 3x6 pixel
	 *
	 * ISO/IEC 18004:2000 Section 8.10
	 */
	public function setVersionNumber(bool $test = null):QRMatrix{
		$bits = $this::versionPattern[$this->version] ?? false;

		if($bits !== false){

			for($i = 0; $i < 18; $i++){
				$a = (int)floor($i / 3);
				$b = $i % 3 + $this->moduleCount - 8 - 3;
				$v = !$test && (($bits >> $i) & 1) === 1;

				$this->set($b, $a, $v, $this::M_VERSION); // ne
				$this->set($a, $b, $v, $this::M_VERSION); // sw
			}

		}

		return $this;
	}

	/**
	 * Draws the format info along the finder patterns
	 *
	 * ISO/IEC 18004:2000 Section 8.9
	 */
	public function setFormatInfo(int $maskPattern, bool $test = null):QRMatrix{
		$bits = $this::formatPattern[QRCode::ECC_MODES[$this->eclevel]][$maskPattern] ?? 0;

		for($i = 0; $i < 15; $i++){
			$v = !$test && (($bits >> $i) & 1) === 1;

			if($i < 6){
				$this->set(8, $i, $v, $this::M_FORMAT);
			}
			elseif($i < 8){
				$this->set(8, $i + 1, $v, $this::M_FORMAT);
			}
			else{
				$this->set(8, $this->moduleCount - 15 + $i, $v, $this::M_FORMAT);
			}

			if($i < 8){
				$this->set($this->moduleCount - $i - 1, 8, $v, $this::M_FORMAT);
			}
			elseif($i < 9){
				$this->set(15 - $i, 8, $v, $this::M_FORMAT);
			}
			else{
				$this->set(15 - $i - 1, 8, $v, $this::M_FORMAT);
			}

		}

		$this->set(8, $this->moduleCount - 8, !$test, $this::M_FORMAT);

		return $this;
	}

	/**
	 * Draws the "quiet zone" of $size around the matrix
	 *
	 * ISO/IEC 18004:2000 Section 7.3.7
	 *
	 * @throws \chillerlan\QRCode\Data\QRCodeDataException
	 */
	public function setQuietZone(int $size = null):QRMatrix{

		if($this->matrix[$this->moduleCount - 1][$this->moduleCount - 1] === $this::M_NULL){
			throw new QRCodeDataException('use only after writing data');
		}

		$size = $size !== null
			? max(0, min($size, floor($this->moduleCount / 2)))
			: 4;

		for($y = 0; $y < $this->moduleCount; $y++){
			for($i = 0; $i < $size; $i++){
				array_unshift($this->matrix[$y], $this::M_QUIETZONE);
				array_push($this->matrix[$y], $this::M_QUIETZONE);
			}
		}

		$this->moduleCount += ($size * 2);

		$r = array_fill(0, $this->moduleCount, $this::M_QUIETZONE);

		for($i = 0; $i < $size; $i++){
			array_unshift($this->matrix, $r);
			array_push($this->matrix, $r);
		}

		return $this;
	}

	/**
	 * Maps the binary $data array from QRDataInterface::maskECC() on the matrix,
	 * masking the data using $maskPattern (ISO/IEC 18004:2000 Section 8.8)
	 *
	 * @see \chillerlan\QRCode\Data\QRDataAbstract::maskECC()
	 *
	 * @param int[] $data
	 * @param int   $maskPattern
	 *
	 * @return \chillerlan\QRCode\Data\QRMatrix
	 */
	public function mapData(array $data, int $maskPattern):QRMatrix{
		$this->maskPattern = $maskPattern;
		$byteCount         = count($data);
		$y                 = $this->moduleCount - 1;
		$inc               = -1;
		$byteIndex         = 0;
		$bitIndex          = 7;
		$mask              = $this->getMask($this->maskPattern);

		for($i = $y; $i > 0; $i -= 2){

			if($i === 6){
				$i--;
			}

			while(true){
				for($c = 0; $c < 2; $c++){
					$x = $i - $c;

					if($this->matrix[$y][$x] === $this::M_NULL){
						$v = false;

						if($byteIndex < $byteCount){
							$v = (($data[$byteIndex] >> $bitIndex) & 1) === 1;
						}

						if($mask($x, $y) === 0){
							$v = !$v;
						}

						$this->matrix[$y][$x] = $this::M_DATA << ($v ? 8 : 0);
						$bitIndex--;

						if($bitIndex === -1){
							$byteIndex++;
							$bitIndex = 7;
						}

					}
				}

				$y += $inc;

				if($y < 0 || $this->moduleCount <= $y){
					$y   -=  $inc;
					$inc  = -$inc;

					break;
				}

			}
		}

		return $this;
	}

	/**
	 * ISO/IEC 18004:2000 Section 8.8.1
	 *
	 * @see \chillerlan\QRCode\QRMatrix::mapData()
	 *
	 * @internal
	 *
	 * @throws \chillerlan\QRCode\Data\QRCodeDataException
	 */
	protected function getMask(int $maskPattern):Closure{

		if((0b111 & $maskPattern) !== $maskPattern){
			throw new QRCodeDataException('invalid mask pattern'); // @codeCoverageIgnore
		}

		return [
			0b000 => fn($x, $y):int => ($x + $y) % 2,

			0b001 => fn($x, $y):int => $x % 2,
			0b010 => fn($x, $y):int => $y % 3,
			0b011 => fn($x, $y):int => ($x + $y) % 3,
			0b100 => fn($x, $y):int => ((int)($x / 2) + (int)($y / 3)) % 2,
			0b101 => fn($x, $y):int => (($x * $y) % 2) + (($x * $y) % 3),
			0b110 => fn($x, $y):int => ((($x * $y) % 2) + (($x * $y) % 3)) % 2,
			0b111 => fn($x, $y):int => ((($x * $y) % 3) + (($x + $y) % 2)) % 2,
		][$maskPattern];
	}

}


1			<?php
2			/**
3			* Class QRMatrix
4			*
5			* @filesource QRMatrix.php
6			* @created 15.11.2017
7			* @package chillerlan\QRCode\Data
8			* @author Smiley <[email protected]>
9			* @copyright 2017 Smiley
10			* @license MIT
11			*/
12
13			namespace chillerlan\QRCode\Data;
14
15			use chillerlan\QRCode\QRCode;
16			use Closure;
17
18			use function array_fill, array_key_exists, array_push, array_unshift, count, floor, in_array, max, min, range;
19
20			/**
21			* Holds a numerical representation of the final QR Code;
22			* maps the ECC coded binary data and applies the mask pattern
23			*
24			* @see http://www.thonky.com/qr-code-tutorial/format-version-information
25			*/
26			final class QRMatrix{
27
28			/** @var int */
29			public const M_NULL = 0x00;
30			/** @var int */
31			public const M_DARKMODULE = 0x02;
32			/** @var int */
33			public const M_DATA = 0x04;
34			/** @var int */
35			public const M_FINDER = 0x06;
36			/** @var int */
37			public const M_SEPARATOR = 0x08;
38			/** @var int */
39			public const M_ALIGNMENT = 0x0a;
40			/** @var int */
41			public const M_TIMING = 0x0c;
42			/** @var int */
43			public const M_FORMAT = 0x0e;
44			/** @var int */
45			public const M_VERSION = 0x10;
46			/** @var int */
47			public const M_QUIETZONE = 0x12;
48
49			# public const M_LOGO = 0x14; // @todo
50			/** @var int */
51			public const M_TEST = 0xff;
52
53			/**
54			* ISO/IEC 18004:2000 Annex E, Table E.1 - Row/column coordinates of center module of Alignment Patterns
55			*
56			* version -> pattern
57			*
58			* @var int[][]
59			*/
60			protected const alignmentPattern = [
61			1 => [],
62			2 => [6, 18],
63			3 => [6, 22],
64			4 => [6, 26],
65			5 => [6, 30],
66			6 => [6, 34],
67			7 => [6, 22, 38],
68			8 => [6, 24, 42],
69			9 => [6, 26, 46],
70			10 => [6, 28, 50],
71			11 => [6, 30, 54],
72			12 => [6, 32, 58],
73			13 => [6, 34, 62],
74			14 => [6, 26, 46, 66],
75			15 => [6, 26, 48, 70],
76			16 => [6, 26, 50, 74],
77			17 => [6, 30, 54, 78],
78			18 => [6, 30, 56, 82],
79			19 => [6, 30, 58, 86],
80			20 => [6, 34, 62, 90],
81			21 => [6, 28, 50, 72, 94],
82			22 => [6, 26, 50, 74, 98],
83			23 => [6, 30, 54, 78, 102],
84			24 => [6, 28, 54, 80, 106],
85			25 => [6, 32, 58, 84, 110],
86			26 => [6, 30, 58, 86, 114],
87			27 => [6, 34, 62, 90, 118],
88			28 => [6, 26, 50, 74, 98, 122],
89			29 => [6, 30, 54, 78, 102, 126],
90			30 => [6, 26, 52, 78, 104, 130],
91			31 => [6, 30, 56, 82, 108, 134],
92			32 => [6, 34, 60, 86, 112, 138],
93			33 => [6, 30, 58, 86, 114, 142],
94			34 => [6, 34, 62, 90, 118, 146],
95			35 => [6, 30, 54, 78, 102, 126, 150],
96			36 => [6, 24, 50, 76, 102, 128, 154],
97			37 => [6, 28, 54, 80, 106, 132, 158],
98			38 => [6, 32, 58, 84, 110, 136, 162],
99			39 => [6, 26, 54, 82, 110, 138, 166],
100			40 => [6, 30, 58, 86, 114, 142, 170],
101			];
102
103			/**
104			* ISO/IEC 18004:2000 Annex D, Table D.1 - Version information bit stream for each version
105			*
106			* no version pattern for QR Codes < 7
107			*
108			* @var int[]
109			*/
110			protected const versionPattern = [
111			7 => 0b000111110010010100,
112			8 => 0b001000010110111100,
113			9 => 0b001001101010011001,
114			10 => 0b001010010011010011,
115			11 => 0b001011101111110110,
116			12 => 0b001100011101100010,
117			13 => 0b001101100001000111,
118			14 => 0b001110011000001101,
119			15 => 0b001111100100101000,
120			16 => 0b010000101101111000,
121			17 => 0b010001010001011101,
122			18 => 0b010010101000010111,
123			19 => 0b010011010100110010,
124			20 => 0b010100100110100110,
125			21 => 0b010101011010000011,
126			22 => 0b010110100011001001,
127			23 => 0b010111011111101100,
128			24 => 0b011000111011000100,
129			25 => 0b011001000111100001,
130			26 => 0b011010111110101011,
131			27 => 0b011011000010001110,
132			28 => 0b011100110000011010,
133			29 => 0b011101001100111111,
134			30 => 0b011110110101110101,
135			31 => 0b011111001001010000,
136			32 => 0b100000100111010101,
137			33 => 0b100001011011110000,
138			34 => 0b100010100010111010,
139			35 => 0b100011011110011111,
140			36 => 0b100100101100001011,
141			37 => 0b100101010000101110,
142			38 => 0b100110101001100100,
143			39 => 0b100111010101000001,
144			40 => 0b101000110001101001,
145			];
146
147			/**
148			* ISO/IEC 18004:2000 Section 8.9 - Format Information
149			*
150			* ECC level -> mask pattern
151			*
152			* @var int[][]
153			*/
154			protected const formatPattern = [
155			[ // L
156			0b111011111000100,
157			0b111001011110011,
158			0b111110110101010,
159			0b111100010011101,
160			0b110011000101111,
161			0b110001100011000,
162			0b110110001000001,
163			0b110100101110110,
164			],
165			[ // M
166			0b101010000010010,
167			0b101000100100101,
168			0b101111001111100,
169			0b101101101001011,
170			0b100010111111001,
171			0b100000011001110,
172			0b100111110010111,
173			0b100101010100000,
174			],
175			[ // Q
176			0b011010101011111,
177			0b011000001101000,
178			0b011111100110001,
179			0b011101000000110,
180			0b010010010110100,
181			0b010000110000011,
182			0b010111011011010,
183			0b010101111101101,
184			],
185			[ // H
186			0b001011010001001,
187			0b001001110111110,
188			0b001110011100111,
189			0b001100111010000,
190			0b000011101100010,
191			0b000001001010101,
192			0b000110100001100,
193			0b000100000111011,
194			],
195			];
196
197			/**
198			* the current QR Code version number
199			*/
200			protected int $version;
201
202			/**
203			* the current ECC level
204			*/
205			protected int $eclevel;
206
207			/**
208			* the used mask pattern, set via QRMatrix::mapData()
209			*/
210			protected int $maskPattern = QRCode::MASK_PATTERN_AUTO;
211
212			/**
213			* the size (side length) of the matrix
214			*/
215			protected int $moduleCount;
216
217			/**
218			* the actual matrix data array
219			*
220			* @var int[][]
221			*/
222			protected array $matrix;
223
224			/**
225			* QRMatrix constructor.
226			*
227			* @throws \chillerlan\QRCode\Data\QRCodeDataException
228			*/
229			public function __construct(int $version, int $eclevel){
230
231			if(!in_array($version, range(1, 40), true)){
232			throw new QRCodeDataException('invalid QR Code version');
233			}
234
235			if(!array_key_exists($eclevel, QRCode::ECC_MODES)){
236			throw new QRCodeDataException('invalid ecc level');
237			}
238
239			$this->version = $version;
240			$this->eclevel = $eclevel;
241			$this->moduleCount = $this->version * 4 + 17;
242			$this->matrix = array_fill(0, $this->moduleCount, array_fill(0, $this->moduleCount, $this::M_NULL));
243			}
244
245			/**
246			* shortcut to initialize the matrix
247			*/
248			public function init(int $maskPattern, bool $test = null):QRMatrix{
249			return $this
250			->setFinderPattern()
251			->setSeparators()
252			->setAlignmentPattern()
253			->setTimingPattern()
254			->setVersionNumber($test)
255			->setFormatInfo($maskPattern, $test)
256			->setDarkModule()
257			;
258			}
259
260			/**
261			* Returns the data matrix
262			*
263			* @return int[][]
264			*/
265			public function matrix():array{
266			return $this->matrix;
267			}
268
269			/**
270			* Returns the current version number
271			*/
272			public function version():int{
273			return $this->version;
274			}
275
276			/**
277			* Returns the current ECC level
278			*/
279			public function eccLevel():int{
280			return $this->eclevel;
281			}
282
283			/**
284			* Returns the current mask pattern
285			*/
286			public function maskPattern():int{
287			return $this->maskPattern;
288			}
289
290			/**
291			* Returns the absoulute size of the matrix, including quiet zone (after setting it).
292			*
293			* size = version * 4 + 17 [ + 2 * quietzone size]
294			*/
295			public function size():int{
296			return $this->moduleCount;
297			}
298
299			/**
300			* Returns the value of the module at position [$x, $y]
301			*/
302			public function get(int $x, int $y):int{
303			return $this->matrix[$y][$x];
304			}
305
306			/**
307			* Sets the $M_TYPE value for the module at position [$x, $y]
308			*
309			* true => $M_TYPE << 8
310			* false => $M_TYPE
311			*/
312			public function set(int $x, int $y, bool $value, int $M_TYPE):QRMatrix{
313			$this->matrix[$y][$x] = $M_TYPE << ($value ? 8 : 0);
314
315			return $this;
316			}
317
318			/**
319			* Checks whether a module is true (dark) or false (light)
320			*
321			* true => $value >> 8 === $M_TYPE
322			* $value >> 8 > 0
323			*
324			* false => $value === $M_TYPE
325			* $value >> 8 === 0
326			*/
327			public function check(int $x, int $y):bool{
328			return $this->matrix[$y][$x] >> 8 > 0;
329			}
330
331
332			/**
333			* Sets the "dark module", that is always on the same position 1x1px away from the bottom left finder
334			*/
335			public function setDarkModule():QRMatrix{
336			$this->set(8, 4 * $this->version + 9, true, $this::M_DARKMODULE);
337
338			return $this;
339			}
340
341			/**
342			* Draws the 7x7 finder patterns in the corners top left/right and bottom left
343			*
344			* ISO/IEC 18004:2000 Section 7.3.2
345			*/
346			public function setFinderPattern():QRMatrix{
347
348			$pos = [
349			[0, 0], // top left
350			[$this->moduleCount - 7, 0], // bottom left
351			[0, $this->moduleCount - 7], // top right
352			];
353
354			foreach($pos as $c){
355			for($y = 0; $y < 7; $y++){
356			for($x = 0; $x < 7; $x++){
357			$this->set(
358			$c[0] + $y,
359			$c[1] + $x,
360			!(($x > 0 && $x < 6 && ($y === 1 \|\| $y === 5)) \|\| ($y > 0 && $y < 6 && ($x === 1 \|\| $x === 5))),
361			$this::M_FINDER
362			);
363			}
364			}
365			}
366
367			return $this;
368			}
369
370			/**
371			* Draws the separator lines around the finder patterns
372			*
373			* ISO/IEC 18004:2000 Section 7.3.3
374			*/
375			public function setSeparators():QRMatrix{
376
377			$h = [
378			[7, 0],
379			[$this->moduleCount - 8, 0],
380			[7, $this->moduleCount - 8],
381			];
382
383			$v = [
384			[7, 7],
385			[$this->moduleCount - 1, 7],
386			[7, $this->moduleCount - 8],
387			];
388
389			for($c = 0; $c < 3; $c++){
390			for($i = 0; $i < 8; $i++){
391			$this->set($h[$c][0] , $h[$c][1] + $i, false, $this::M_SEPARATOR);
392			$this->set($v[$c][0] - $i, $v[$c][1] , false, $this::M_SEPARATOR);
393			}
394			}
395
396			return $this;
397			}
398
399
400			/**
401			* Draws the 5x5 alignment patterns
402			*
403			* ISO/IEC 18004:2000 Section 7.3.5
404			*/
405			public function setAlignmentPattern():QRMatrix{
406
407			foreach($this::alignmentPattern[$this->version] as $y){
408			foreach($this::alignmentPattern[$this->version] as $x){
409
410			// skip existing patterns
411			if($this->matrix[$y][$x] !== $this::M_NULL){
412			continue;
413			}
414
415			for($ry = -2; $ry <= 2; $ry++){
416			for($rx = -2; $rx <= 2; $rx++){
417			$v = ($ry === 0 && $rx === 0) \|\| $ry === 2 \|\| $ry === -2 \|\| $rx === 2 \|\| $rx === -2;
418
419			$this->set($x + $rx, $y + $ry, $v, $this::M_ALIGNMENT);
420			}
421			}
422
423			}
424			}
425
426			return $this;
427			}
428
429
430			/**
431			* Draws the timing pattern (h/v checkered line between the finder patterns)
432			*
433			* ISO/IEC 18004:2000 Section 7.3.4
434			*/
435			public function setTimingPattern():QRMatrix{
436
437			foreach(range(8, $this->moduleCount - 8 - 1) as $i){
438
439			if($this->matrix[6][$i] !== $this::M_NULL \|\| $this->matrix[$i][6] !== $this::M_NULL){
440			continue;
441			}
442
443			$v = $i % 2 === 0;
444
445			$this->set($i, 6, $v, $this::M_TIMING); // h
446			$this->set(6, $i, $v, $this::M_TIMING); // v
447			}
448
449			return $this;
450			}
451
452			/**
453			* Draws the version information, 2x 3x6 pixel
454			*
455			* ISO/IEC 18004:2000 Section 8.10
456			*/
457			public function setVersionNumber(bool $test = null):QRMatrix{
458			$bits = $this::versionPattern[$this->version] ?? false;
459
460			if($bits !== false){
461
462			for($i = 0; $i < 18; $i++){
463			$a = (int)floor($i / 3);
464			$b = $i % 3 + $this->moduleCount - 8 - 3;
465			$v = !$test && (($bits >> $i) & 1) === 1;
466
467			$this->set($b, $a, $v, $this::M_VERSION); // ne
468			$this->set($a, $b, $v, $this::M_VERSION); // sw
469			}
470
471			}
472
473			return $this;
474			}
475
476			/**
477			* Draws the format info along the finder patterns
478			*
479			* ISO/IEC 18004:2000 Section 8.9
480			*/
481			public function setFormatInfo(int $maskPattern, bool $test = null):QRMatrix{
482			$bits = $this::formatPattern[QRCode::ECC_MODES[$this->eclevel]][$maskPattern] ?? 0;
483
484			for($i = 0; $i < 15; $i++){
485			$v = !$test && (($bits >> $i) & 1) === 1;
486
487			if($i < 6){
488			$this->set(8, $i, $v, $this::M_FORMAT);
489			}
490			elseif($i < 8){
491			$this->set(8, $i + 1, $v, $this::M_FORMAT);
492			}
493			else{
494			$this->set(8, $this->moduleCount - 15 + $i, $v, $this::M_FORMAT);
495			}
496
497			if($i < 8){
498			$this->set($this->moduleCount - $i - 1, 8, $v, $this::M_FORMAT);
499			}
500			elseif($i < 9){
501			$this->set(15 - $i, 8, $v, $this::M_FORMAT);
502			}
503			else{
504			$this->set(15 - $i - 1, 8, $v, $this::M_FORMAT);
505			}
506
507			}
508
509			$this->set(8, $this->moduleCount - 8, !$test, $this::M_FORMAT);
510
511			return $this;
512			}
513
514			/**
515			* Draws the "quiet zone" of $size around the matrix
516			*
517			* ISO/IEC 18004:2000 Section 7.3.7
518			*
519			* @throws \chillerlan\QRCode\Data\QRCodeDataException
520			*/
521			public function setQuietZone(int $size = null):QRMatrix{
522
523			if($this->matrix[$this->moduleCount - 1][$this->moduleCount - 1] === $this::M_NULL){
524			throw new QRCodeDataException('use only after writing data');
525			}
526
527			$size = $size !== null
528			? max(0, min($size, floor($this->moduleCount / 2)))
529			: 4;
530
531			for($y = 0; $y < $this->moduleCount; $y++){
532			for($i = 0; $i < $size; $i++){
533			array_unshift($this->matrix[$y], $this::M_QUIETZONE);
534			array_push($this->matrix[$y], $this::M_QUIETZONE);
535			}
536			}
537
538			$this->moduleCount += ($size * 2);
539
540			$r = array_fill(0, $this->moduleCount, $this::M_QUIETZONE);
541
542			for($i = 0; $i < $size; $i++){
543			array_unshift($this->matrix, $r);
544			array_push($this->matrix, $r);
545			}
546
547			return $this;
548			}
549
550			/**
551			* Maps the binary $data array from QRDataInterface::maskECC() on the matrix,
552			* masking the data using $maskPattern (ISO/IEC 18004:2000 Section 8.8)
553			*
554			* @see \chillerlan\QRCode\Data\QRDataAbstract::maskECC()
555			*
556			* @param int[] $data
557			* @param int $maskPattern
558			*
559			* @return \chillerlan\QRCode\Data\QRMatrix
560			*/
561			public function mapData(array $data, int $maskPattern):QRMatrix{
562			$this->maskPattern = $maskPattern;
563			$byteCount = count($data);
564			$y = $this->moduleCount - 1;
565			$inc = -1;
566			$byteIndex = 0;
567			$bitIndex = 7;
568			$mask = $this->getMask($this->maskPattern);
569
570			for($i = $y; $i > 0; $i -= 2){
571
572			if($i === 6){
573			$i--;
574			}
575
576			while(true){
577			for($c = 0; $c < 2; $c++){
578			$x = $i - $c;
579
580			if($this->matrix[$y][$x] === $this::M_NULL){
581			$v = false;
582
583			if($byteIndex < $byteCount){
584			$v = (($data[$byteIndex] >> $bitIndex) & 1) === 1;
585			}
586
587			if($mask($x, $y) === 0){
588			$v = !$v;
589			}
590
591			$this->matrix[$y][$x] = $this::M_DATA << ($v ? 8 : 0);
592			$bitIndex--;
593
594			if($bitIndex === -1){
595			$byteIndex++;
596			$bitIndex = 7;
597			}
598
599			}
600			}
601
602			$y += $inc;
603
604			if($y < 0 \|\| $this->moduleCount <= $y){
605			$y -= $inc;
606			$inc = -$inc;
607
608			break;
609			}
610
611			}
612			}
613
614			return $this;
615			}
616
617			/**
618			* ISO/IEC 18004:2000 Section 8.8.1
619			*
620			* @see \chillerlan\QRCode\QRMatrix::mapData()
621			*
622			* @internal
623			*
624			* @throws \chillerlan\QRCode\Data\QRCodeDataException
625			*/
626			protected function getMask(int $maskPattern):Closure{
627
628			if((0b111 & $maskPattern) !== $maskPattern){
629			throw new QRCodeDataException('invalid mask pattern'); // @codeCoverageIgnore
630			}
631
632			return [
633			0b000 => fn($x, $y):int => ($x + $y) % 2,
			0 ignored issues – show Bug introduced 2020-04-05 18:55 UTC by Report Bug Copy Issue Report A parse error occurred: Syntax error, unexpected ':', expecting T_DOUBLE_ARROW on line 633 at column 22 Loading history...
634			0b001 => fn($x, $y):int => $x % 2,
635			0b010 => fn($x, $y):int => $y % 3,
636			0b011 => fn($x, $y):int => ($x + $y) % 3,
637			0b100 => fn($x, $y):int => ((int)($x / 2) + (int)($y / 3)) % 2,
638			0b101 => fn($x, $y):int => (($x * $y) % 2) + (($x * $y) % 3),
639			0b110 => fn($x, $y):int => ((($x * $y) % 2) + (($x * $y) % 3)) % 2,
640			0b111 => fn($x, $y):int => ((($x * $y) % 3) + (($x + $y) % 2)) % 2,
641			][$maskPattern];
642			}
643
644			}
645

chillerlan / php-qrcode

Push — master ( 552d15...d4c1db )

QRMatrix F

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