303 lines
9.8 KiB
PHP
303 lines
9.8 KiB
PHP
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<?php
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/**
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*--------------------------------------------------------------------
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*
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* Sub-Class - Code 93
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*
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* !! Warning !!
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* If you display the checksum on the barcode, you may obtain
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* some garbage since some characters are not displayable.
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*
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*--------------------------------------------------------------------
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* @author Akhtar Khan <er.akhtarkhan@gmail.com>
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* @link http://www.codeitnow.in
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* @package https://github.com/codeitnowin/barcode-generator
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*/
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namespace CodeItNow\BarcodeBundle\Generator;
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use CodeItNow\BarcodeBundle\Generator\CINParseException;
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use CodeItNow\BarcodeBundle\Generator\CINBarcode1D;
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class CINcode93 extends CINBarcode1D {
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const EXTENDED_1 = 43;
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const EXTENDED_2 = 44;
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const EXTENDED_3 = 45;
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const EXTENDED_4 = 46;
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private $starting, $ending;
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private $indcheck, $data;
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/**
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* Constructor.
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*/
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public function __construct() {
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parent::__construct();
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$this->starting = $this->ending = 47; /* * */
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$this->keys = array('0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', '-', '.', ' ', '$', '/', '+', '%', '($)', '(%)', '(/)', '(+)', '(*)');
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$this->code = array(
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'020001', /* 0 */
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'000102', /* 1 */
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'000201', /* 2 */
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'000300', /* 3 */
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'010002', /* 4 */
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'010101', /* 5 */
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'010200', /* 6 */
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'000003', /* 7 */
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'020100', /* 8 */
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'030000', /* 9 */
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'100002', /* A */
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'100101', /* B */
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'100200', /* C */
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'110001', /* D */
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'110100', /* E */
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'120000', /* F */
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'001002', /* G */
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'001101', /* H */
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'001200', /* I */
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'011001', /* J */
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'021000', /* K */
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'000012', /* L */
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'000111', /* M */
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'000210', /* N */
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'010011', /* O */
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'020010', /* P */
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'101001', /* Q */
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'101100', /* R */
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'100011', /* S */
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'100110', /* T */
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'110010', /* U */
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'111000', /* V */
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'001011', /* W */
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'001110', /* X */
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'011010', /* Y */
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'012000', /* Z */
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'010020', /* - */
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'200001', /* . */
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'200100', /* */
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'210000', /* $ */
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'001020', /* / */
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'002010', /* + */
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'100020', /* % */
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'010110', /*($)*/
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'201000', /*(%)*/
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'200010', /*(/)*/
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'011100', /*(+)*/
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'000030' /*(*)*/
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);
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}
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/**
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* Parses the text before displaying it.
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*
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* @param mixed $text
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*/
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public function parse($text) {
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$this->text = $text;
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$data = array();
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$indcheck = array();
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$c = strlen($this->text);
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for ($i = 0; $i < $c; $i++) {
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$pos = array_search($this->text[$i], $this->keys);
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if ($pos === false) {
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// Search in extended?
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$extended = self::getExtendedVersion($this->text[$i]);
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if ($extended === false) {
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throw new CINParseException('code93', 'The character \'' . $this->text[$i] . '\' is not allowed.');
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} else {
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$extc = strlen($extended);
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for ($j = 0; $j < $extc; $j++) {
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$v = $extended[$j];
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if ($v === '$') {
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$indcheck[] = self::EXTENDED_1;
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$data[] = $this->code[self::EXTENDED_1];
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} elseif ($v === '%') {
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$indcheck[] = self::EXTENDED_2;
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$data[] = $this->code[self::EXTENDED_2];
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} elseif ($v === '/') {
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$indcheck[] = self::EXTENDED_3;
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$data[] = $this->code[self::EXTENDED_3];
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} elseif ($v === '+') {
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$indcheck[] = self::EXTENDED_4;
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$data[] = $this->code[self::EXTENDED_4];
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} else {
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$pos2 = array_search($v, $this->keys);
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$indcheck[] = $pos2;
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$data[] = $this->code[$pos2];
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}
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}
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}
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} else {
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$indcheck[] = $pos;
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$data[] = $this->code[$pos];
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}
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}
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$this->setData(array($indcheck, $data));
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$this->addDefaultLabel();
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}
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/**
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* Draws the barcode.
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*
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* @param resource $im
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*/
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public function draw($im) {
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// Starting *
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$this->drawChar($im, $this->code[$this->starting], true);
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$c = count($this->data);
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for ($i = 0; $i < $c; $i++) {
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$this->drawChar($im, $this->data[$i], true);
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}
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// Checksum
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$c = count($this->checksumValue);
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for ($i = 0; $i < $c; $i++) {
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$this->drawChar($im, $this->code[$this->checksumValue[$i]], true);
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}
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// Ending *
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$this->drawChar($im, $this->code[$this->ending], true);
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// Draw a Final Bar
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$this->drawChar($im, '0', true);
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$this->drawText($im, 0, 0, $this->positionX, $this->thickness);
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}
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/**
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* Returns the maximal size of a barcode.
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*
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* @param int $w
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* @param int $h
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* @return int[]
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*/
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public function getDimension($w, $h) {
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$startlength = 9;
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$textlength = 9 * count($this->data);
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$checksumlength = 2 * 9;
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$endlength = 9 + 1; // + final bar
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$w += $startlength + $textlength + $checksumlength + $endlength;
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$h += $this->thickness;
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return parent::getDimension($w, $h);
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}
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/**
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* Validates the input.
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*/
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protected function validate() {
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$c = count($this->data);
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if ($c === 0) {
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throw new CINParseException('code93', 'No data has been entered.');
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}
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parent::validate();
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}
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/**
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* Overloaded method to calculate checksum.
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*/
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protected function calculateChecksum() {
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// Checksum
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// First CheckSUM "C"
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// The "C" checksum character is the modulo 47 remainder of the sum of the weighted
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// value of the data characters. The weighting value starts at "1" for the right-most
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// data character, 2 for the second to last, 3 for the third-to-last, and so on up to 20.
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// After 20, the sequence wraps around back to 1.
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// Second CheckSUM "K"
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// Same as CheckSUM "C" but we count the CheckSum "C" at the end
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// After 15, the sequence wraps around back to 1.
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$sequence_multiplier = array(20, 15);
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$this->checksumValue = array();
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$indcheck = $this->indcheck;
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for ($z = 0; $z < 2; $z++) {
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$checksum = 0;
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for ($i = count($indcheck), $j = 0; $i > 0; $i--, $j++) {
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$multiplier = $i % $sequence_multiplier[$z];
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if ($multiplier === 0) {
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$multiplier = $sequence_multiplier[$z];
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}
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$checksum += $indcheck[$j] * $multiplier;
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}
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$this->checksumValue[$z] = $checksum % 47;
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$indcheck[] = $this->checksumValue[$z];
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}
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}
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/**
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* Overloaded method to display the checksum.
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*/
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protected function processChecksum() {
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if ($this->checksumValue === false) { // Calculate the checksum only once
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$this->calculateChecksum();
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}
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if ($this->checksumValue !== false) {
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$ret = '';
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$c = count($this->checksumValue);
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for ($i = 0; $i < $c; $i++) {
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$ret .= $this->keys[$this->checksumValue[$i]];
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}
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return $ret;
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}
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return false;
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}
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/**
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* Saves data into the classes.
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*
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* This method will save data, calculate real column number
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* (if -1 was selected), the real error level (if -1 was
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* selected)... It will add Padding to the end and generate
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* the error codes.
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*
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* @param array $data
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*/
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private function setData($data) {
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$this->indcheck = $data[0];
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$this->data = $data[1];
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$this->calculateChecksum();
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}
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/**
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* Returns the extended reprensentation of the character.
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*
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* @param string $char
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* @return string
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*/
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private static function getExtendedVersion($char) {
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$o = ord($char);
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if ($o === 0) {
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return '%U';
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} elseif ($o >= 1 && $o <= 26) {
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return '$' . chr($o + 64);
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} elseif (($o >= 33 && $o <= 44) || $o === 47 || $o === 48) {
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return '/' . chr($o + 32);
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} elseif ($o >= 97 && $o <= 122) {
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return '+' . chr($o - 32);
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} elseif ($o >= 27 && $o <= 31) {
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return '%' . chr($o + 38);
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} elseif ($o >= 59 && $o <= 63) {
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return '%' . chr($o + 11);
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} elseif ($o >= 91 && $o <= 95) {
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return '%' . chr($o - 16);
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} elseif ($o >= 123 && $o <= 127) {
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return '%' . chr($o - 43);
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} elseif ($o === 64) {
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return '%V';
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} elseif ($o === 96) {
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return '%W';
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} elseif ($o > 127) {
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return false;
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} else {
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return $char;
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}
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}
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}
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?>
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