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.htaccess	0.27KB	edt ren
AbstractBarcode.php	1.077KB	edt ren
BarcodeException.php	0.086KB	edt ren
BarcodeInterface.php	0.322KB	edt ren
Codabar.php	2.247KB	edt ren
Code11.php	2.766KB	edt ren
Code128.php	7.375KB	edt ren
Code39.php	6.732KB	edt ren
Code93.php	7.531KB	edt ren
EanExt.php	3.049KB	edt ren
EanUpc.php	6.849KB	edt ren
I25.php	3.254KB	edt ren
Imb.php	10.28KB	edt ren
Msi.php	2.431KB	edt ren
Postnet.php	2.769KB	edt ren
Rm4Scc.php	4.216KB	edt ren
S25.php	2.558KB	edt ren

<?php

namespace Mpdf\Barcode;

/**
 * EAN13 and UPC-A barcodes.
 * EAN13: European Article Numbering international retail product code
 * UPC-A: Universal product code seen on almost all retail products in the USA and Canada
 * UPC-E: Short version of UPC symbol
 */
class EanUpc extends \Mpdf\Barcode\AbstractBarcode implements \Mpdf\Barcode\BarcodeInterface
{

/**
	 * @param string $code
	 * @param int $length
	 * @param float $leftMargin
	 * @param float $rightMargin
	 * @param float $xDim
	 * @param float $barHeight
	 */
	public function __construct($code, $length, $leftMargin, $rightMargin, $xDim, $barHeight)
	{
		$this->init($code, $length);

$this->data['lightmL'] = $leftMargin; // LEFT light margin =  x X-dim (http://www.gs1uk.org)
		$this->data['lightmR'] = $rightMargin; // RIGHT light margin =  x X-dim (http://www.gs1uk.org)
		$this->data['nom-X'] = $xDim; // Nominal value for X-dim in mm (http://www.gs1uk.org)
		$this->data['nom-H'] = $barHeight; // Nominal bar height in mm incl. numerals (http://www.gs1uk.org)
	}

/**
	 * @param string $code
	 * @param int $length
	 */
	private function init($code, $length)
	{
		if (preg_match('/[\D]+/', $code)) {
			throw new \Mpdf\Barcode\BarcodeException(sprintf('Invalid EAN UPC barcode value "%s"', $code));
		}

$upce = false;
		$checkdigit = false;

if ($length == 6) {
			$length = 12; // UPC-A
			$upce = true; // UPC-E mode
		}
		$dataLength = $length - 1;

// Padding
		$code = str_pad($code, $dataLength, '0', STR_PAD_LEFT);
		$codeLength = strlen($code);

// Calculate check digit
		$sum_a = 0;
		for ($i = 1; $i < $dataLength; $i += 2) {
			$sum_a += $code[$i];
		}

if ($length > 12) {
			$sum_a *= 3;
		}
		$sum_b = 0;
		for ($i = 0; $i < $dataLength; $i += 2) {
			$sum_b += ($code[$i]);
		}

if ($length < 13) {
			$sum_b *= 3;
		}

$r = ($sum_a + $sum_b) % 10;
		if ($r > 0) {
			$r = (10 - $r);
		}

if ($codeLength == $dataLength) {
			// Add check digit
			$code .= $r;
			$checkdigit = $r;
		} elseif ($r !== (int) $code[$dataLength]) {
			// Wrong checkdigit
			throw new \Mpdf\Barcode\BarcodeException(sprintf('Invalid EAN UPC barcode value "%s"', $code));
		}

if ($length == 12) {
			// UPC-A
			$code = '0' . $code;
			++$length;
		}

if ($upce) {
			// Convert UPC-A to UPC-E
			$tmp = substr($code, 4, 3);
			$prodCode = (int) substr($code, 7, 5); // product code
			$invalidUpce = false;
			if (($tmp == '000') or ($tmp == '100') or ($tmp == '200')) {
				// Manufacturer code ends in 000, 100, or 200
				$upceCode = substr($code, 2, 2) . substr($code, 9, 3) . substr($code, 4, 1);
				if ($prodCode > 999) {
					$invalidUpce = true;
				}
			} else {
				$tmp = substr($code, 5, 2);
				if ($tmp == '00') {
					// Manufacturer code ends in 00
					$upceCode = substr($code, 2, 3) . substr($code, 10, 2) . '3';
					if ($prodCode > 99) {
						$invalidUpce = true;
					}
				} else {
					$tmp = substr($code, 6, 1);
					if ($tmp == '0') {
						// Manufacturer code ends in 0
						$upceCode = substr($code, 2, 4) . substr($code, 11, 1) . '4';
						if ($prodCode > 9) {
							$invalidUpce = true;
						}
					} else {
						// Manufacturer code does not end in zero
						$upceCode = substr($code, 2, 5) . substr($code, 11, 1);
						if ($prodCode > 9) {
							$invalidUpce = true;
						}
					}
				}
			}

if ($invalidUpce) {
				throw new \Mpdf\Barcode\BarcodeException('UPC-A cannot produce a valid UPC-E barcode');
			}
		}

// Convert digits to bars
		$codes = [
			'A' => [// left odd parity
				'0' => '0001101',
				'1' => '0011001',
				'2' => '0010011',
				'3' => '0111101',
				'4' => '0100011',
				'5' => '0110001',
				'6' => '0101111',
				'7' => '0111011',
				'8' => '0110111',
				'9' => '0001011'],
			'B' => [// left even parity
				'0' => '0100111',
				'1' => '0110011',
				'2' => '0011011',
				'3' => '0100001',
				'4' => '0011101',
				'5' => '0111001',
				'6' => '0000101',
				'7' => '0010001',
				'8' => '0001001',
				'9' => '0010111'],
			'C' => [// right
				'0' => '1110010',
				'1' => '1100110',
				'2' => '1101100',
				'3' => '1000010',
				'4' => '1011100',
				'5' => '1001110',
				'6' => '1010000',
				'7' => '1000100',
				'8' => '1001000',
				'9' => '1110100']
		];

$parities = [
			'0' => ['A', 'A', 'A', 'A', 'A', 'A'],
			'1' => ['A', 'A', 'B', 'A', 'B', 'B'],
			'2' => ['A', 'A', 'B', 'B', 'A', 'B'],
			'3' => ['A', 'A', 'B', 'B', 'B', 'A'],
			'4' => ['A', 'B', 'A', 'A', 'B', 'B'],
			'5' => ['A', 'B', 'B', 'A', 'A', 'B'],
			'6' => ['A', 'B', 'B', 'B', 'A', 'A'],
			'7' => ['A', 'B', 'A', 'B', 'A', 'B'],
			'8' => ['A', 'B', 'A', 'B', 'B', 'A'],
			'9' => ['A', 'B', 'B', 'A', 'B', 'A']
		];

$upceParities = [];
		$upceParities[0] = [
			'0' => ['B', 'B', 'B', 'A', 'A', 'A'],
			'1' => ['B', 'B', 'A', 'B', 'A', 'A'],
			'2' => ['B', 'B', 'A', 'A', 'B', 'A'],
			'3' => ['B', 'B', 'A', 'A', 'A', 'B'],
			'4' => ['B', 'A', 'B', 'B', 'A', 'A'],
			'5' => ['B', 'A', 'A', 'B', 'B', 'A'],
			'6' => ['B', 'A', 'A', 'A', 'B', 'B'],
			'7' => ['B', 'A', 'B', 'A', 'B', 'A'],
			'8' => ['B', 'A', 'B', 'A', 'A', 'B'],
			'9' => ['B', 'A', 'A', 'B', 'A', 'B']
		];

$upceParities[1] = [
			'0' => ['A', 'A', 'A', 'B', 'B', 'B'],
			'1' => ['A', 'A', 'B', 'A', 'B', 'B'],
			'2' => ['A', 'A', 'B', 'B', 'A', 'B'],
			'3' => ['A', 'A', 'B', 'B', 'B', 'A'],
			'4' => ['A', 'B', 'A', 'A', 'B', 'B'],
			'5' => ['A', 'B', 'B', 'A', 'A', 'B'],
			'6' => ['A', 'B', 'B', 'B', 'A', 'A'],
			'7' => ['A', 'B', 'A', 'B', 'A', 'B'],
			'8' => ['A', 'B', 'A', 'B', 'B', 'A'],
			'9' => ['A', 'B', 'B', 'A', 'B', 'A']
		];

$k = 0;
		$seq = '101'; // left guard bar

if ($upce && isset($upceCode)) {
			$bararray = ['code' => $upceCode, 'maxw' => 0, 'maxh' => 1, 'bcode' => []];
			$p = $upceParities[$code[1]][$r];
			for ($i = 0; $i < 6; ++$i) {
				$seq .= $codes[$p[$i]][$upceCode[$i]];
			}
			$seq .= '010101'; // right guard bar
		} else {
			$bararray = ['code' => $code, 'maxw' => 0, 'maxh' => 1, 'bcode' => []];
			$halfLen = ceil($length / 2);
			if ($length == 8) {
				for ($i = 0; $i < $halfLen; ++$i) {
					$seq .= $codes['A'][$code[$i]];
				}
			} else {
				$p = $parities[$code[0]];
				for ($i = 1; $i < $halfLen; ++$i) {
					$seq .= $codes[$p[$i - 1]][$code[$i]];
				}
			}
			$seq .= '01010'; // center guard bar
			for ($i = $halfLen; $i < $length; ++$i) {
				$seq .= $codes['C'][$code[(int) $i]];
			}
			$seq .= '101'; // right guard bar
		}

$clen = strlen($seq);
		$w = 0;
		for ($i = 0; $i < $clen; ++$i) {
			$w += 1;
			if (($i == ($clen - 1)) or (($i < ($clen - 1)) and ($seq[$i] != $seq[($i + 1)]))) {
				if ($seq[$i] == '1') {
					$t = true; // bar
				} else {
					$t = false; // space
				}
				$bararray['bcode'][$k] = ['t' => $t, 'w' => $w, 'h' => 1, 'p' => 0];
				$bararray['maxw'] += $w;
				++$k;
				$w = 0;
			}
		}
		$bararray['checkdigit'] = $checkdigit;

$this->data = $bararray;
	}

/**
	 * @inheritdoc
	 */
	public function getType()
	{
		return 'EANUPC';
	}

}