Code11.php

<?php
 
namespace Mpdf\Barcode;
 
/**
 * CODE11 barcodes.
 * Used primarily for labeling telecommunications equipment
 */
class Code11 extends \Mpdf\Barcode\AbstractBarcode implements \Mpdf\Barcode\BarcodeInterface
{
 
/**
 * @param string $code
 * @param float $printRatio
 */
public function __construct($code, $printRatio, $quiet_zone_left = null, $quiet_zone_right = null)
{
$this->init($code, $printRatio);
 
$this->data['nom-X'] = 0.381; // Nominal value for X-dim (bar width) in mm (2 X min. spec.)
$this->data['nom-H'] = 10; // Nominal value for Height of Full bar in mm (non-spec.)
$this->data['lightmL'] = ($quiet_zone_left !== null ? $quiet_zone_left : 10); // LEFT light margin = x X-dim (spec.)
$this->data['lightmR'] = ($quiet_zone_right !== null ? $quiet_zone_right : 10); // RIGHT light margin = x X-dim (spec.)
$this->data['lightTB'] = 0; // TOP/BOTTOM light margin = x X-dim (non-spec.)
}
 
/**
 * @param string $code
 * @param float $printRatio
 */
private function init($code, $printRatio)
{
$chr = [
'0' => '111121',
'1' => '211121',
'2' => '121121',
'3' => '221111',
'4' => '112121',
'5' => '212111',
'6' => '122111',
'7' => '111221',
'8' => '211211',
'9' => '211111',
'-' => '112111',
'S' => '112211'
];
 
$bararray = ['code' => $code, 'maxw' => 0, 'maxh' => 1, 'bcode' => []];
 
$k = 0;
 
$len = strlen($code);
// calculate check digit C
 
$p = 1;
$check = 0;
 
for ($i = ($len - 1); $i >= 0; --$i) {
$digit = $code[$i];
if ($digit == '-') {
$dval = 10;
} else {
$dval = (int) $digit;
}
$check += ($dval * $p);
++$p;
if ($p > 10) {
$p = 1;
}
}
 
$check %= 11;
 
if ($check == 10) {
$check = '-';
}
 
$code .= $check;
$checkdigit = $check;
 
if ($len > 10) {
// calculate check digit K
$p = 1;
$check = 0;
for ($i = $len; $i >= 0; --$i) {
$digit = $code[$i];
if ($digit == '-') {
$dval = 10;
} else {
$dval = (int) $digit;
}
$check += ($dval * $p);
++$p;
if ($p > 9) {
$p = 1;
}
}
$check %= 11;
$code .= $check;
$checkdigit .= $check;
++$len;
}
 
$code = 'S' . $code . 'S';
$len += 3;
 
for ($i = 0; $i < $len; ++$i) {
 
if (!isset($chr[$code[$i]])) {
throw new \Mpdf\Barcode\BarcodeException(sprintf('Invalid character "%s" in CODE11 barcode value "%s"', $code[$i], $code));
}
 
$seq = $chr[$code[$i]];
 
for ($j = 0; $j < 6; ++$j) {
 
$t = $j % 2 === 0;
$x = $seq[$j];
$w = ($x == 2) ? $printRatio : 1;
 
$bararray['bcode'][$k] = ['t' => $t, 'w' => $w, 'h' => 1, 'p' => 0];
$bararray['maxw'] += $w;
 
++$k;
}
}
 
$bararray['checkdigit'] = $checkdigit;
 
$this->data = $bararray;
}
 
/**
 * @inheritdoc
 */
public function getType()
{
return 'CODE11';
}
 
}