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342de0004d
tcpdf/barcodes.php
nicolaasuni 342de0004d Initial commit
2009-03-24 19:37:18 +01:00

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<?php
//============================================================+
// File name : barcodes.php
// Begin : 2008-06-09
// Last Update : 2009-02-13
// Version : 1.0.005
// License : GNU LGPL (http://www.gnu.org/copyleft/lesser.html)
// ----------------------------------------------------------------------------
// Copyright (C) 2008-2009 Nicola Asuni - Tecnick.com S.r.l.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 2.1 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
// See LICENSE.TXT file for more information.
// ----------------------------------------------------------------------------
//
// Description : PHP class to creates array representations for
// common 1D barcodes to be used with TCPDF.
//
// Author: Nicola Asuni
//
// (c) Copyright:
// Nicola Asuni
// Tecnick.com S.r.l.
// Via della Pace, 11
// 09044 Quartucciu (CA)
// ITALY
// www.tecnick.com
// info@tecnick.com
//============================================================+
/**
* PHP class to creates array representations for common 1D barcodes to be used with TCPDF.
* @package com.tecnick.tcpdf
* @abstract Functions for generating string representation of common 1D barcodes.
* @author Nicola Asuni
* @copyright 2008-2009 Nicola Asuni - Tecnick.com S.r.l (www.tecnick.com) Via Della Pace, 11 - 09044 - Quartucciu (CA) - ITALY - www.tecnick.com - info@tecnick.com
* @link http://www.tcpdf.org
* @license http://www.gnu.org/copyleft/lesser.html LGPL
* @version 1.0.005
*/
/**
* PHP class to creates array representations for common 1D barcodes to be used with TCPDF (http://www.tcpdf.org).<br>
* @name TCPDFBarcode
* @package com.tecnick.tcpdf
* @version 1.0.005
* @author Nicola Asuni
* @link http://www.tcpdf.org
* @license http://www.gnu.org/copyleft/lesser.html LGPL
*/
class TCPDFBarcode {
/**
* @var array representation of barcode.
* @access protected
*/
protected $barcode_array;
/**
* This is the class constructor.
* Return an array representations for common 1D barcodes:<ul>
* <li>$arrcode['code'] code to be printed on text label</li>
* <li>$arrcode['maxh'] max bar height</li>
* <li>$arrcode['maxw'] max bar width</li>
* <li>$arrcode['bcode'][$k] single bar or space in $k position</li>
* <li>$arrcode['bcode'][$k]['t'] bar type: true = bar, false = space.</li>
* <li>$arrcode['bcode'][$k]['w'] bar width in units.</li>
* <li>$arrcode['bcode'][$k]['h'] bar height in units.</li>
* <li>$arrcode['bcode'][$k]['p'] bar top position (0 = top, 1 = middle)</li></ul>
* @param string $code code to print
* @param string $type type of barcode: <ul><li>C39 : CODE 39</li><li>C39+ : CODE 39 with checksum</li><li>C39E : CODE 39 EXTENDED</li><li>C39E+ : CODE 39 EXTENDED with checksum</li><li>I25 : Interleaved 2 of 5</li><li>C128A : CODE 128 A</li><li>C128B : CODE 128 B</li><li>C128C : CODE 128 C</li><li>EAN13 : EAN 13</li><li>UPCA : UPC-A</li><li>POSTNET : POSTNET</li><li>CODABAR : CODABAR</li></ul>
*/
public function __construct($code, $type) {
$this->setBarcode($code, $type);
}
/**
* Return an array representations of barcode.
* @return array
*/
public function getBarcodeArray() {
return $this->barcode_array;
}
/**
* Set the barcode.
* @param string $code code to print
* @param string $type type of barcode: <ul><li>C39 : CODE 39</li><li>C39+ : CODE 39 with checksum</li><li>C39E : CODE 39 EXTENDED</li><li>C39E+ : CODE 39 EXTENDED with checksum</li><li>I25 : Interleaved 2 of 5</li><li>C128A : CODE 128 A</li><li>C128B : CODE 128 B</li><li>C128C : CODE 128 C</li><li>EAN13 : EAN 13</li><li>UPCA : UPC-A</li><li>POSTNET : POSTNET</li><li>CODABAR : CODABAR</li></ul>
* @return array
*/
public function setBarcode($code, $type) {
switch (strtoupper($type)) {
case 'C39': { // CODE 39
$arrcode = $this->barcode_code39($code, false, false);
break;
}
case 'C39+': { // CODE 39 with checksum
$arrcode = $this->barcode_code39($code, false, true);
break;
}
case 'C39E': { // CODE 39 EXTENDED
$arrcode = $this->barcode_code39($code, true, false);
break;
}
case 'C39E+': { // CODE 39 EXTENDED with checksum
$arrcode = $this->barcode_code39($code, true, true);
break;
}
case 'I25': { // Interleaved 2 of 5
$arrcode = $this->barcode_i25($code);
break;
}
case 'C128A': { // CODE 128 A
$arrcode = $this->barcode_c128($code, 'A');
break;
}
case 'C128B': { // CODE 128 B
$arrcode = $this->barcode_c128($code, 'B');
break;
}
case 'C128C': { // CODE 128 C
$arrcode = $this->barcode_c128($code, 'C');
break;
}
case 'EAN13': { // EAN 13
$arrcode = $this->barcode_ean13($code, 13);
break;
}
case 'UPCA': { // UPC-A
$arrcode = $this->barcode_ean13($code, 12);
break;
}
case 'POSTNET': { // POSTNET
$arrcode = $this->barcode_postnet($code);
break;
}
case 'CODABAR': { // CODABAR
$arrcode = $this->barcode_codabar($code);
break;
}
default: {
$this->barcode_array = false;
}
}
$this->barcode_array = $arrcode;
}
/**
* CODE 39
* @param string $code code to represent.
* @param boolean $checksum if true add a checksum to the code
* @return array barcode representation.
* @access protected
*/
protected function barcode_code39($code, $extended=false, $checksum=false) {
$chr['0'] = '111221211';
$chr['1'] = '211211112';
$chr['2'] = '112211112';
$chr['3'] = '212211111';
$chr['4'] = '111221112';
$chr['5'] = '211221111';
$chr['6'] = '112221111';
$chr['7'] = '111211212';
$chr['8'] = '211211211';
$chr['9'] = '112211211';
$chr['A'] = '211112112';
$chr['B'] = '112112112';
$chr['C'] = '212112111';
$chr['D'] = '111122112';
$chr['E'] = '211122111';
$chr['F'] = '112122111';
$chr['G'] = '111112212';
$chr['H'] = '211112211';
$chr['I'] = '112112211';
$chr['J'] = '111122211';
$chr['K'] = '211111122';
$chr['L'] = '112111122';
$chr['M'] = '212111121';
$chr['N'] = '111121122';
$chr['O'] = '211121121';
$chr['P'] = '112121121';
$chr['Q'] = '111111222';
$chr['R'] = '211111221';
$chr['S'] = '112111221';
$chr['T'] = '111121221';
$chr['U'] = '221111112';
$chr['V'] = '122111112';
$chr['W'] = '222111111';
$chr['X'] = '121121112';
$chr['Y'] = '221121111';
$chr['Z'] = '122121111';
$chr['-'] = '121111212';
$chr['.'] = '221111211';
$chr[' '] = '122111211';
$chr['*'] = '121121211';
$chr['$'] = '121212111';
$chr['/'] = '121211121';
$chr['+'] = '121112121';
$chr['%'] = '111212121';
$code = strtoupper($code);
if ($extended) {
// extended mode
$code = $this->encode_code39_ext($code);
}
if ($code === false) {
return false;
}
if ($checksum) {
// checksum
$code .= $this->checksum_code39($code);
}
// add start and stop codes
$code = '*'.$code.'*';
$bararray = array('code' => $code, 'maxw' => 0, 'maxh' => 1, 'bcode' => array());
$k = 0;
for($i=0; $i < strlen($code); $i++) {
$char = $code{$i};
if(!isset($chr[$char])) {
// invalid character
return false;
}
for($j=0; $j < 9; $j++) {
if (($j % 2) == 0) {
$t = true; // bar
} else {
$t = false; // space
}
$w = $chr[$char]{$j};
$bararray['bcode'][$k] = array('t' => $t, 'w' => $w, 'h' => 1, 'p' => 0);
$bararray['maxw'] += $w;
++$k;
}
$bararray['bcode'][$k] = array('t' => false, 'w' => 1, 'h' => 1, 'p' => 0);
$bararray['maxw'] += 1;
++$k;
}
return $bararray;
}
/**
* Encode a string to be used for CODE 39 Extended mode.
* @param string $code code to represent.
* @return encoded string.
* @access protected
*/
protected function encode_code39_ext($code) {
$encode = array(
chr(0) => '%U', chr(1) => '$A', chr(2) => '$B', chr(3) => '$C',
chr(4) => '$D', chr(5) => '$E', chr(6) => '$F', chr(7) => '$G',
chr(8) => '$H', chr(9) => '$I', chr(10) => '$J', chr(11) => '<27>K',
chr(12) => '$L', chr(13) => '$M', chr(14) => '$N', chr(15) => '$O',
chr(16) => '$P', chr(17) => '$Q', chr(18) => '$R', chr(19) => '$S',
chr(20) => '$T', chr(21) => '$U', chr(22) => '$V', chr(23) => '$W',
chr(24) => '$X', chr(25) => '$Y', chr(26) => '$Z', chr(27) => '%A',
chr(28) => '%B', chr(29) => '%C', chr(30) => '%D', chr(31) => '%E',
chr(32) => ' ', chr(33) => '/A', chr(34) => '/B', chr(35) => '/C',
chr(36) => '/D', chr(37) => '/E', chr(38) => '/F', chr(39) => '/G',
chr(40) => '/H', chr(41) => '/I', chr(42) => '/J', chr(43) => '/K',
chr(44) => '/L', chr(45) => '-', chr(46) => '.', chr(47) => '/O',
chr(48) => '0', chr(49) => '1', chr(50) => '2', chr(51) => '3',
chr(52) => '4', chr(53) => '5', chr(54) => '6', chr(55) => '7',
chr(56) => '8', chr(57) => '9', chr(58) => '/Z', chr(59) => '%F',
chr(60) => '%G', chr(61) => '%H', chr(62) => '%I', chr(63) => '%J',
chr(64) => '%V', chr(65) => 'A', chr(66) => 'B', chr(67) => 'C',
chr(68) => 'D', chr(69) => 'E', chr(70) => 'F', chr(71) => 'G',
chr(72) => 'H', chr(73) => 'I', chr(74) => 'J', chr(75) => 'K',
chr(76) => 'L', chr(77) => 'M', chr(78) => 'N', chr(79) => 'O',
chr(80) => 'P', chr(81) => 'Q', chr(82) => 'R', chr(83) => 'S',
chr(84) => 'T', chr(85) => 'U', chr(86) => 'V', chr(87) => 'W',
chr(88) => 'X', chr(89) => 'Y', chr(90) => 'Z', chr(91) => '%K',
chr(92) => '%L', chr(93) => '%M', chr(94) => '%N', chr(95) => '%O',
chr(96) => '%W', chr(97) => '+A', chr(98) => '+B', chr(99) => '+C',
chr(100) => '+D', chr(101) => '+E', chr(102) => '+F', chr(103) => '+G',
chr(104) => '+H', chr(105) => '+I', chr(106) => '+J', chr(107) => '+K',
chr(108) => '+L', chr(109) => '+M', chr(110) => '+N', chr(111) => '+O',
chr(112) => '+P', chr(113) => '+Q', chr(114) => '+R', chr(115) => '+S',
chr(116) => '+T', chr(117) => '+U', chr(118) => '+V', chr(119) => '+W',
chr(120) => '+X', chr(121) => '+Y', chr(122) => '+Z', chr(123) => '%P',
chr(124) => '%Q', chr(125) => '%R', chr(126) => '%S', chr(127) => '%T');
$code_ext = '';
for ($i = 0 ; $i < strlen($code); $i++) {
if (ord($code{$i}) > 127) {
return false;
}
$code_ext .= $encode[$code{$i}];
}
return $code_ext;
}
/**
* Calculate CODE 39 checksum (modulo 43).
* @param string $code code to represent.
* @return char checksum.
* @access protected
*/
protected function checksum_code39($code) {
$chars = array(
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K',
'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V',
'W', 'X', 'Y', 'Z', '-', '.', ' ', '$', '/', '+', '%');
$sum = 0;
for ($i=0 ; $i < strlen($code); $i++) {
$k = array_keys($chars, $code{$i});
$sum += $k[0];
}
$j = ($sum % 43);
return $chars[$j];
}
/**
* Interleaved 2 of 5 barcodes.
* Contains digits (0 to 9) and encodes the data in the width of both bars and spaces.
* @param string $code code to represent.
* @param boolean $checksum if true add a checksum to the code
* @return array barcode representation.
* @access protected
*/
protected function barcode_i25($code) {
$chr['0'] = '11221';
$chr['1'] = '21112';
$chr['2'] = '12112';
$chr['3'] = '22111';
$chr['4'] = '11212';
$chr['5'] = '21211';
$chr['6'] = '12211';
$chr['7'] = '11122';
$chr['8'] = '21121';
$chr['9'] = '12121';
$chr['A'] = '11';
$chr['Z'] = '21';
if((strlen($code) % 2) != 0) {
// add leading zero if code-length is odd
$code = '0'.$code;
}
// add start and stop codes
$code = 'AA'.strtolower($code).'ZA';
$bararray = array('code' => $code, 'maxw' => 0, 'maxh' => 1, 'bcode' => array());
$k = 0;
for($i=0; $i < strlen($code); $i=$i+2) {
$char_bar = $code{$i};
$char_space = $code{$i+1};
if((!isset($chr[$char_bar])) OR (!isset($chr[$char_space]))) {
// invalid character
return false;
}
// create a bar-space sequence
$seq = '';
for($s=0; $s < strlen($chr[$char_bar]); $s++){
$seq .= $chr[$char_bar]{$s} . $chr[$char_space]{$s};
}
for($j=0; $j < strlen($seq); $j++) {
if (($j % 2) == 0) {
$t = true; // bar
} else {
$t = false; // space
}
$w = $seq{$j};
$bararray['bcode'][$k] = array('t' => $t, 'w' => $w, 'h' => 1, 'p' => 0);
$bararray['maxw'] += $w;
++$k;
}
}
return $bararray;
}
/**
* C128 barcodes.
*
* @param string $code code to represent.
* @param string $type barcode type: A, B or C
* @return array barcode representation.
* @access protected
*/
protected function barcode_c128($code, $type='B') {
$chr = array(
'212222', /* 00 */
'222122', /* 01 */
'222221', /* 02 */
'121223', /* 03 */
'121322', /* 04 */
'131222', /* 05 */
'122213', /* 06 */
'122312', /* 07 */
'132212', /* 08 */
'221213', /* 09 */
'221312', /* 10 */
'231212', /* 11 */
'112232', /* 12 */
'122132', /* 13 */
'122231', /* 14 */
'113222', /* 15 */
'123122', /* 16 */
'123221', /* 17 */
'223211', /* 18 */
'221132', /* 19 */
'221231', /* 20 */
'213212', /* 21 */
'223112', /* 22 */
'312131', /* 23 */
'311222', /* 24 */
'321122', /* 25 */
'321221', /* 26 */
'312212', /* 27 */
'322112', /* 28 */
'322211', /* 29 */
'212123', /* 30 */
'212321', /* 31 */
'232121', /* 32 */
'111323', /* 33 */
'131123', /* 34 */
'131321', /* 35 */
'112313', /* 36 */
'132113', /* 37 */
'132311', /* 38 */
'211313', /* 39 */
'231113', /* 40 */
'231311', /* 41 */
'112133', /* 42 */
'112331', /* 43 */
'132131', /* 44 */
'113123', /* 45 */
'113321', /* 46 */
'133121', /* 47 */
'313121', /* 48 */
'211331', /* 49 */
'231131', /* 50 */
'213113', /* 51 */
'213311', /* 52 */
'213131', /* 53 */
'311123', /* 54 */
'311321', /* 55 */
'331121', /* 56 */
'312113', /* 57 */
'312311', /* 58 */
'332111', /* 59 */
'314111', /* 60 */
'221411', /* 61 */
'431111', /* 62 */
'111224', /* 63 */
'111422', /* 64 */
'121124', /* 65 */
'121421', /* 66 */
'141122', /* 67 */
'141221', /* 68 */
'112214', /* 69 */
'112412', /* 70 */
'122114', /* 71 */
'122411', /* 72 */
'142112', /* 73 */
'142211', /* 74 */
'241211', /* 75 */
'221114', /* 76 */
'413111', /* 77 */
'241112', /* 78 */
'134111', /* 79 */
'111242', /* 80 */
'121142', /* 81 */
'121241', /* 82 */
'114212', /* 83 */
'124112', /* 84 */
'124211', /* 85 */
'411212', /* 86 */
'421112', /* 87 */
'421211', /* 88 */
'212141', /* 89 */
'214121', /* 90 */
'412121', /* 91 */
'111143', /* 92 */
'111341', /* 93 */
'131141', /* 94 */
'114113', /* 95 */
'114311', /* 96 */
'411113', /* 97 */
'411311', /* 98 */
'113141', /* 99 */
'114131', /* 100 */
'311141', /* 101 */
'411131', /* 102 */
'211412', /* 103 START A */
'211214', /* 104 START B */
'211232', /* 105 START C */
'233111', /* STOP */
'200000' /* END */
);
$keys = '';
switch(strtoupper($type)) {
case 'A': {
$startid = 103;
$keys = ' !"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_';
for($i = 0; $i < 32; $i++) {
$keys .= chr($i);
}
break;
}
case 'B': {
$startid = 104;
$keys = ' !"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~'.chr(127);
break;
}
case 'C': {
$startid = 105;
$keys = '';
if ((strlen($code) % 2) != 0) {
//echo "The length of barcode value must be even ($code). You must pad the number with zeros.\n";
return false;
}
for($i = 0; $i <= 99; $i++) {
$keys .= chr($i);
}
$new_code = '';
for ($i=0; $i < (strlen($code) / 2); $i++) {
$new_code .= chr(intval($code{(2 * $i)}.$code{(2 * $i + 1)}));
}
$code = $new_code;
break;
}
default: {
return false;
}
}
// calculate check character
$sum = $startid;
for ($i=0; $i < strlen($code); $i++) {
$sum += (strpos($keys, $code{$i}) * ($i+1));
}
$check = ($sum % 103);
// add start, check and stop codes
$code = chr($startid).$code.chr($check).chr(106).chr(107);
$bararray = array('code' => $code, 'maxw' => 0, 'maxh' => 1, 'bcode' => array());
$k = 0;
$len = strlen($code);
for($i=0; $i < $len; $i++) {
$ck = strpos($keys, $code{$i});
if (($i == 0) OR ($i > ($len-4))) {
$char_num = ord($code{$i});
$seq = $chr[$char_num];
} elseif(($ck >= 0) AND isset($chr[$ck])) {
$seq = $chr[$ck];
} else {
// invalid character
return false;
}
for($j=0; $j < 6; $j++) {
if (($j % 2) == 0) {
$t = true; // bar
} else {
$t = false; // space
}
$w = $seq{$j};
$bararray['bcode'][$k] = array('t' => $t, 'w' => $w, 'h' => 1, 'p' => 0);
$bararray['maxw'] += $w;
++$k;
}
}
return $bararray;
}
/**
* EAN13 and UPC-A barcodes.
* @param string $code code to represent.
* @param string $len barcode type: 13 = EAN13, 12 = UPC-A
* @return array barcode representation.
* @access protected
*/
protected function barcode_ean13($code, $len=13) {
//Padding
$code = str_pad($code, $len-1, '0', STR_PAD_LEFT);
if($len == 12) {
$code = '0'.$code;
}
// add check digit
if(strlen($code) == 12) {
$sum=0;
for($i=1;$i<=11;$i+=2) {
$sum += (3 * $code{$i});
}
for($i=0; $i <= 10; $i+=2) {
$sum += ($code{$i});
}
$r = $sum % 10;
if($r > 0) {
$r = (10 - $r);
}
$code .= $r;
} else { // test checkdigit
$sum = 0;
for($i=1; $i <= 11; $i+=2) {
$sum += (3 * $code{$i});
}
for($i=0; $i <= 10; $i+=2) {
$sum += $code{$i};
}
if ((($sum + $code{12}) % 10) != 0) {
return false;
}
}
//Convert digits to bars
$codes = array(
'A'=>array(
'0'=>'0001101',
'1'=>'0011001',
'2'=>'0010011',
'3'=>'0111101',
'4'=>'0100011',
'5'=>'0110001',
'6'=>'0101111',
'7'=>'0111011',
'8'=>'0110111',
'9'=>'0001011'),
'B'=>array(
'0'=>'0100111',
'1'=>'0110011',
'2'=>'0011011',
'3'=>'0100001',
'4'=>'0011101',
'5'=>'0111001',
'6'=>'0000101',
'7'=>'0010001',
'8'=>'0001001',
'9'=>'0010111'),
'C'=>array(
'0'=>'1110010',
'1'=>'1100110',
'2'=>'1101100',
'3'=>'1000010',
'4'=>'1011100',
'5'=>'1001110',
'6'=>'1010000',
'7'=>'1000100',
'8'=>'1001000',
'9'=>'1110100')
);
$parities = array(
'0'=>array('A','A','A','A','A','A'),
'1'=>array('A','A','B','A','B','B'),
'2'=>array('A','A','B','B','A','B'),
'3'=>array('A','A','B','B','B','A'),
'4'=>array('A','B','A','A','B','B'),
'5'=>array('A','B','B','A','A','B'),
'6'=>array('A','B','B','B','A','A'),
'7'=>array('A','B','A','B','A','B'),
'8'=>array('A','B','A','B','B','A'),
'9'=>array('A','B','B','A','B','A')
);
$bararray = array('code' => $code, 'maxw' => 0, 'maxh' => 1, 'bcode' => array());
$k = 0;
$seq = '101';
$p = $parities[$code{0}];
for($i=1; $i < 7; $i++) {
$seq .= $codes[$p[$i-1]][$code{$i}];
}
$seq .= '01010';
for($i=7; $i < 13; $i++) {
$seq .= $codes['C'][$code{$i}];
}
$seq .= '101';
$len = strlen($seq);
$w = 0;
for($i=0; $i < $len; $i++) {
$w += 1;
if (($i == ($len - 1)) OR (($i < ($len - 1)) AND ($seq{$i} != $seq{($i+1)}))) {
if ($seq{$i} == '1') {
$t = true; // bar
} else {
$t = false; // space
}
$bararray['bcode'][$k] = array('t' => $t, 'w' => $w, 'h' => 1, 'p' => 0);
$bararray['maxw'] += $w;
++$k;
$w = 0;
}
}
return $bararray;
}
/**
* POSTNET barcodes.
* @param string $code zip code to represent. Must be a string containing a zip code of the form DDDDD or DDDDD-DDDD.
* @return array barcode representation.
* @access protected
*/
protected function barcode_postnet($code) {
// bar lenght
$barlen = Array(
0 => Array(2,2,1,1,1),
1 => Array(1,1,1,2,2),
2 => Array(1,1,2,1,2),
3 => Array(1,1,2,2,1),
4 => Array(1,2,1,1,2),
5 => Array(1,2,1,2,1),
6 => Array(1,2,2,1,1),
7 => Array(2,1,1,1,2),
8 => Array(2,1,1,2,1),
9 => Array(2,1,2,1,1)
);
$bararray = array('code' => $code, 'maxw' => 0, 'maxh' => 2, 'bcode' => array());
$k = 0;
$code = str_replace('-', '', $code);
$code = str_replace(' ', '', $code);
$len = strlen($code);
// calculate checksum
$sum = 0;
for($i=0; $i < $len; $i++) {
$sum += intval($code{$i});
}
$chkd = ($sum % 10);
if($chkd > 0) {
$chkd = (10 - $chkd);
}
$code .= $chkd;
$len = strlen($code);
// start bar
$bararray['bcode'][$k++] = array('t' => 1, 'w' => 1, 'h' => 2, 'p' => 0);
$bararray['bcode'][$k++] = array('t' => 0, 'w' => 1, 'h' => 2, 'p' => 0);
$bararray['maxw'] += 2;
for ($i=0; $i < $len; $i++) {
for ($j=0; $j < 5; $j++) {
$h = $barlen[$code{$i}][$j];
$p = floor(1 / $h);
$bararray['bcode'][$k++] = array('t' => 1, 'w' => 1, 'h' => $h, 'p' => $p);
$bararray['bcode'][$k++] = array('t' => 0, 'w' => 1, 'h' => 2, 'p' => 0);
$bararray['maxw'] += 2;
}
}
// end bar
$bararray['bcode'][$k++] = array('t' => 1, 'w' => 1, 'h' => 2, 'p' => 0);
$bararray['maxw'] += 1;
return $bararray;
}
/**
* CODABAR barcodes.
* @param string $code code to represent.
* @return array barcode representation.
* @access protected
*/
protected function barcode_codabar($code) {
$chr = array(
'0' => '11111221',
'1' => '11112211',
'2' => '11121121',
'3' => '22111111',
'4' => '11211211',
'5' => '21111211',
'6' => '12111121',
'7' => '12112111',
'8' => '12211111',
'9' => '21121111',
'-' => '11122111',
'$' => '11221111',
':' => '21112121',
'/' => '21211121',
'.' => '21212111',
'+' => '11222221',
'A' => '11221211',
'B' => '12121121',
'C' => '11121221',
'D' => '11122211'
);
$bararray = array('code' => $code, 'maxw' => 0, 'maxh' => 1, 'bcode' => array());
$k = 0;
$w = 0;
$seq = '';
$code = 'A'.strtoupper($code).'A';
$len = strlen($code);
for($i=0; $i < $len; $i++) {
if (!isset($chr[$code{$i}])) {
return false;
}
$seq = $chr[$code{$i}];
for($j=0; $j < 8; $j++) {
if (($j % 2) == 0) {
$t = true; // bar
} else {
$t = false; // space
}
$w = $seq{$j};
$bararray['bcode'][$k] = array('t' => $t, 'w' => $w, 'h' => 1, 'p' => 0);
$bararray['maxw'] += $w;
++$k;
}
}
return $bararray;
}
} // end of class
//============================================================+
// END OF FILE
//============================================================+
?>
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