qrcode.chapril.org-libreqr/barcode-generator/Generator/CINcode39extended.php
2021-11-01 18:08:42 +01:00

210 lines
6.5 KiB
PHP

<?php
/**
*--------------------------------------------------------------------
*
* Sub-Class - Code 39 Extended
*
*--------------------------------------------------------------------
* @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\CINcode39;
class CINcode39extended extends CINcode39 {
const EXTENDED_1 = 39;
const EXTENDED_2 = 40;
const EXTENDED_3 = 41;
const EXTENDED_4 = 42;
protected $indcheck, $data;
/**
* Constructor.
*/
public function __construct() {
parent::__construct();
// We just put parenthesis around special characters.
$this->keys[self::EXTENDED_1] = '($)';
$this->keys[self::EXTENDED_2] = '(/)';
$this->keys[self::EXTENDED_3] = '(+)';
$this->keys[self::EXTENDED_4] = '(%)';
}
/**
* Parses the text before displaying it.
*
* @param mixed $text
*/
public function parse($text) {
$this->text = $text;
$data = array();
$indcheck = array();
$c = strlen($this->text);
for ($i = 0; $i < $c; $i++) {
$pos = array_search($this->text[$i], $this->keys);
if ($pos === false) {
// Search in extended?
$extended = self::getExtendedVersion($this->text[$i]);
if ($extended === false) {
throw new CINParseException('code39extended', 'The character \'' . $this->text[$i] . '\' is not allowed.');
} else {
$extc = strlen($extended);
for ($j = 0; $j < $extc; $j++) {
$v = $extended[$j];
if ($v === '$') {
$indcheck[] = self::EXTENDED_1;
$data[] = $this->code[self::EXTENDED_1];
} elseif ($v === '%') {
$indcheck[] = self::EXTENDED_2;
$data[] = $this->code[self::EXTENDED_2];
} elseif ($v === '/') {
$indcheck[] = self::EXTENDED_3;
$data[] = $this->code[self::EXTENDED_3];
} elseif ($v === '+') {
$indcheck[] = self::EXTENDED_4;
$data[] = $this->code[self::EXTENDED_4];
} else {
$pos2 = array_search($v, $this->keys);
$indcheck[] = $pos2;
$data[] = $this->code[$pos2];
}
}
}
} else {
$indcheck[] = $pos;
$data[] = $this->code[$pos];
}
}
$this->setData(array($indcheck, $data));
$this->addDefaultLabel();
}
/**
* Draws the barcode.
*
* @param resource $im
*/
public function draw($im) {
// Starting *
$this->drawChar($im, $this->code[$this->starting], true);
$c = count($this->data);
for ($i = 0; $i < $c; $i++) {
$this->drawChar($im, $this->data[$i], true);
}
// Checksum (rarely used)
if ($this->checksum === true) {
$this->drawChar($im, $this->code[$this->checksumValue % 43], true);
}
// Ending *
$this->drawChar($im, $this->code[$this->ending], true);
$this->drawText($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) {
$textlength = 13 * count($this->data);
$startlength = 13;
$checksumlength = 0;
if ($this->checksum === true) {
$checksumlength = 13;
}
$endlength = 13;
$w += $startlength + $textlength + $checksumlength + $endlength;
$h += $this->thickness;
return CINBarcode1D::getDimension($w, $h);
}
/**
* Validates the input.
*/
protected function validate() {
$c = count($this->data);
if ($c === 0) {
throw new CINParseException('code39extended', 'No data has been entered.');
}
parent::validate();
}
/**
* Overloaded method to calculate checksum.
*/
protected function calculateChecksum() {
$this->checksumValue = 0;
$c = count($this->indcheck);
for ($i = 0; $i < $c; $i++) {
$this->checksumValue += $this->indcheck[$i];
}
$this->checksumValue = $this->checksumValue % 43;
}
/**
* Saves data into the classes.
*
* This method will save data, calculate real column number
* (if -1 was selected), the real error level (if -1 was
* selected)... It will add Padding to the end and generate
* the error codes.
*
* @param array $data
*/
private function setData($data) {
$this->indcheck = $data[0];
$this->data = $data[1];
$this->calculateChecksum();
}
/**
* Returns the extended reprensentation of the character.
*
* @param string $char
* @return string
*/
private static function getExtendedVersion($char) {
$o = ord($char);
if ($o === 0) {
return '%U';
} elseif ($o >= 1 && $o <= 26) {
return '$' . chr($o + 64);
} elseif (($o >= 33 && $o <= 44) || $o === 47 || $o === 48) {
return '/' . chr($o + 32);
} elseif ($o >= 97 && $o <= 122) {
return '+' . chr($o - 32);
} elseif ($o >= 27 && $o <= 31) {
return '%' . chr($o + 38);
} elseif ($o >= 59 && $o <= 63) {
return '%' . chr($o + 11);
} elseif ($o >= 91 && $o <= 95) {
return '%' . chr($o - 16);
} elseif ($o >= 123 && $o <= 127) {
return '%' . chr($o - 43);
} elseif ($o === 64) {
return '%V';
} elseif ($o === 96) {
return '%W';
} elseif ($o > 127) {
return false;
} else {
return $char;
}
}
}
?>