forked from miraty/libreqr
141 lines
3.9 KiB
PHP
141 lines
3.9 KiB
PHP
<?php
|
|
/**
|
|
*--------------------------------------------------------------------
|
|
*
|
|
* Sub-Class - UPC Supplemental Barcode 2 digits
|
|
*
|
|
* Working with UPC-A, UPC-E, EAN-13, EAN-8
|
|
* This includes 2 digits (normaly for publications)
|
|
* Must be placed next to UPC or EAN Code
|
|
*
|
|
*--------------------------------------------------------------------
|
|
* @author Akhtar Khan <er.akhtarkhan@gmail.com>
|
|
* @link http://www.codeitnow.in
|
|
* @package https://github.com/codeitnowin/barcode-generator
|
|
*/
|
|
namespace CodeItNow\BarcodeBundle\Generator;
|
|
|
|
use CodeItNow\BarcodeBundle\Generator\CINParseException;
|
|
use CodeItNow\BarcodeBundle\Generator\CINBarcode1D;
|
|
use CodeItNow\BarcodeBundle\Generator\CINLabel;
|
|
|
|
class CINupcext2 extends CINBarcode1D {
|
|
protected $codeParity = array();
|
|
|
|
/**
|
|
* Constructor.
|
|
*/
|
|
public function __construct() {
|
|
parent::__construct();
|
|
|
|
$this->keys = array('0', '1', '2', '3', '4', '5', '6', '7', '8', '9');
|
|
$this->code = array(
|
|
'2100', /* 0 */
|
|
'1110', /* 1 */
|
|
'1011', /* 2 */
|
|
'0300', /* 3 */
|
|
'0021', /* 4 */
|
|
'0120', /* 5 */
|
|
'0003', /* 6 */
|
|
'0201', /* 7 */
|
|
'0102', /* 8 */
|
|
'2001' /* 9 */
|
|
);
|
|
|
|
// Parity, 0=Odd, 1=Even. Depending on ?%4
|
|
$this->codeParity = array(
|
|
array(0, 0), /* 0 */
|
|
array(0, 1), /* 1 */
|
|
array(1, 0), /* 2 */
|
|
array(1, 1) /* 3 */
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Draws the barcode.
|
|
*
|
|
* @param resource $im
|
|
*/
|
|
public function draw($im) {
|
|
// Starting Code
|
|
$this->drawChar($im, '001', true);
|
|
|
|
// Code
|
|
for ($i = 0; $i < 2; $i++) {
|
|
$this->drawChar($im, self::inverse($this->findCode($this->text[$i]), $this->codeParity[intval($this->text) % 4][$i]), false);
|
|
if ($i === 0) {
|
|
$this->drawChar($im, '00', false); // Inter-char
|
|
}
|
|
}
|
|
|
|
$this->drawText($im, 0, 0, $this->positionX, $this->thickness);
|
|
}
|
|
|
|
/**
|
|
* Returns the maximal size of a barcode.
|
|
*
|
|
* @param int $w
|
|
* @param int $h
|
|
* @return int[]
|
|
*/
|
|
public function getDimension($w, $h) {
|
|
$startlength = 4;
|
|
$textlength = 2 * 7;
|
|
$intercharlength = 2;
|
|
|
|
$w += $startlength + $textlength + $intercharlength;
|
|
$h += $this->thickness;
|
|
return parent::getDimension($w, $h);
|
|
}
|
|
|
|
/**
|
|
* Adds the default label.
|
|
*/
|
|
protected function addDefaultLabel() {
|
|
parent::addDefaultLabel();
|
|
|
|
if ($this->defaultLabel !== null) {
|
|
$this->defaultLabel->setPosition(CINLabel::POSITION_TOP);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Validates the input.
|
|
*/
|
|
protected function validate() {
|
|
$c = strlen($this->text);
|
|
if ($c === 0) {
|
|
throw new CINParseException('upcext2', 'No data has been entered.');
|
|
}
|
|
|
|
// Checking if all chars are allowed
|
|
for ($i = 0; $i < $c; $i++) {
|
|
if (array_search($this->text[$i], $this->keys) === false) {
|
|
throw new CINParseException('upcext2', 'The character \'' . $this->text[$i] . '\' is not allowed.');
|
|
}
|
|
}
|
|
|
|
// Must contain 2 digits
|
|
if ($c !== 2) {
|
|
throw new CINParseException('upcext2', 'Must contain 2 digits.');
|
|
}
|
|
|
|
parent::validate();
|
|
}
|
|
|
|
/**
|
|
* Inverses the string when the $inverse parameter is equal to 1.
|
|
*
|
|
* @param string $text
|
|
* @param int $inverse
|
|
* @return string
|
|
*/
|
|
private static function inverse($text, $inverse = 1) {
|
|
if ($inverse === 1) {
|
|
$text = strrev($text);
|
|
}
|
|
|
|
return $text;
|
|
}
|
|
}
|
|
?>
|