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238 lines
7.2 KiB
238 lines
7.2 KiB
<?php
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/*************************************************************************
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* http://www.fpdf.org/en/script/script5.php
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*
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* @author Olivier
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*
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* This script implements EAN13 and UPC-A barcodes (the second being a particular case of the first one). Bars are drawn directly in the PDF (no image is generated).
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* EAN13(float x, float y, string barcode [, float h [, float w]])
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* x: abscissa of barcode.
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* y: ordinate of barcode.
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* barcode: value of barcode.
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* h: height of barcode. Default value: 16.
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* w: width of a bar. Default value: 0.35.
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*
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* UPC_A(float x, float y, string barcode [, float h [, float w]])
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*
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* Same parameters.
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*
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* An EAN13 barcode is made up of 13 digits, UPC-A of 12 (leading zeroes are added if necessary). The last digit is a check digit; if it's not supplied, it will be automatically computed.
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************************************************************************/
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/*************************************************************************
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* http://www.fpdf.org/en/script/script46.php
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*
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* @author The-eh
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*
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* This script implements Code 39 barcodes. A Code 39 barcode can encode a string with the following characters: digits (0 to 9), uppercase letters (A to Z) and 8 additional characters (- . space $ / + % *).
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* Code39(float xpos, float ypos, string code [, float baseline [, float height]])
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* xpos: abscissa of barcode
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* ypos: ordinate of barcode
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* code: value of barcode
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* height: bar height
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* baseline: corresponds to the width of a wide bar
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************************************************************************/
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if (!defined('__CLASS_FPDF_CODEBAR__'))
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{
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define('__CLASS_FPDF_CODEBAR__', true);
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require_once(dirname(__FILE__).'/../_fpdf/fpdf.php');
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class FPDF_Codebar extends FPDF
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{
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var $footer_param = array();
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function FPDF_Codebar($sens = 'P', $unit = 'mm', $format = 'A4')
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{
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$this->FPDF($sens, $unit, $format);
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}
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function BARCODE_EAN13($x,$y,$barcode,$h=10,$w=.35)
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{
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return $this->Barcode($x,$y,$barcode,$h,$w,13);
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}
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function BARCODE_UPC_A($x,$y,$barcode,$h=10,$w=.35)
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{
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return $this->Barcode($x,$y,$barcode,$h,$w,12);
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}
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function GetCheckDigit($barcode)
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{
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//Compute the check digit
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$sum=0;
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for($i=1;$i<=11;$i+=2)
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$sum+=3*$barcode{$i};
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for($i=0;$i<=10;$i+=2)
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$sum+=$barcode{$i};
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$r=$sum%10;
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if($r>0)
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$r=10-$r;
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return $r;
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}
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function TestCheckDigit($barcode)
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{
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//Test validity of check digit
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$sum=0;
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for($i=1;$i<=11;$i+=2)
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$sum+=3*$barcode{$i};
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for($i=0;$i<=10;$i+=2)
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$sum+=$barcode{$i};
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return ($sum+$barcode{12})%10==0;
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}
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function Barcode($x,$y,$barcode,$h,$w,$len)
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{
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//Padding
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$barcode=str_pad($barcode,$len-1,'0',STR_PAD_LEFT);
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if($len==12)
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$barcode='0'.$barcode;
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//Add or control the check digit
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if(strlen($barcode)==12)
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$barcode.=$this->GetCheckDigit($barcode);
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elseif(!$this->TestCheckDigit($barcode))
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$this->Error('Incorrect check digit');
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//Convert digits to bars
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$codes=array(
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'A'=>array(
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'0'=>'0001101','1'=>'0011001','2'=>'0010011','3'=>'0111101','4'=>'0100011',
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'5'=>'0110001','6'=>'0101111','7'=>'0111011','8'=>'0110111','9'=>'0001011'),
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'B'=>array(
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'0'=>'0100111','1'=>'0110011','2'=>'0011011','3'=>'0100001','4'=>'0011101',
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'5'=>'0111001','6'=>'0000101','7'=>'0010001','8'=>'0001001','9'=>'0010111'),
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'C'=>array(
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'0'=>'1110010','1'=>'1100110','2'=>'1101100','3'=>'1000010','4'=>'1011100',
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'5'=>'1001110','6'=>'1010000','7'=>'1000100','8'=>'1001000','9'=>'1110100')
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);
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$parities=array(
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'0'=>array('A','A','A','A','A','A'),
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'1'=>array('A','A','B','A','B','B'),
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'2'=>array('A','A','B','B','A','B'),
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'3'=>array('A','A','B','B','B','A'),
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'4'=>array('A','B','A','A','B','B'),
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'5'=>array('A','B','B','A','A','B'),
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'6'=>array('A','B','B','B','A','A'),
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'7'=>array('A','B','A','B','A','B'),
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'8'=>array('A','B','A','B','B','A'),
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'9'=>array('A','B','B','A','B','A')
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);
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$code='101';
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$p=$parities[$barcode{0}];
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for($i=1;$i<=6;$i++)
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$code.=$codes[$p[$i-1]][$barcode{$i}];
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$code.='01010';
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for($i=7;$i<=12;$i++)
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$code.=$codes['C'][$barcode{$i}];
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$code.='101';
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//Draw bars
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for($i=0;$i<strlen($code);$i++)
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{
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if($code{$i}=='1')
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$this->Rect($x+$i*$w,$y,$w,$h,'F');
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}
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$code_w = strlen($code)*$w;
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$code_t = substr($barcode,-$len);
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$code_f = $code_w/strlen($code_t)*$this->k/0.60;
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$code_h = $h+$code_f/$this->k;
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//Print text uder barcode
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$this->SetFont('Arial','',$code_f);
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$this->Text($x,$y+$h+0.90*$code_f/$this->k,$code_t);
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return array($code_w, $code_h);
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}
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function BARCODE_CODE39($xpos, $ypos, $code,$height=10, $baseline=0.5 )
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{
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$wide = $baseline;
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$narrow = $baseline / 3 ;
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$gap = $narrow;
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$barChar['0'] = 'nnnwwnwnn';
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$barChar['1'] = 'wnnwnnnnw';
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$barChar['2'] = 'nnwwnnnnw';
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$barChar['3'] = 'wnwwnnnnn';
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$barChar['4'] = 'nnnwwnnnw';
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$barChar['5'] = 'wnnwwnnnn';
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$barChar['6'] = 'nnwwwnnnn';
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$barChar['7'] = 'nnnwnnwnw';
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$barChar['8'] = 'wnnwnnwnn';
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$barChar['9'] = 'nnwwnnwnn';
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$barChar['A'] = 'wnnnnwnnw';
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$barChar['B'] = 'nnwnnwnnw';
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$barChar['C'] = 'wnwnnwnnn';
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$barChar['D'] = 'nnnnwwnnw';
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$barChar['E'] = 'wnnnwwnnn';
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$barChar['F'] = 'nnwnwwnnn';
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$barChar['G'] = 'nnnnnwwnw';
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$barChar['H'] = 'wnnnnwwnn';
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$barChar['I'] = 'nnwnnwwnn';
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$barChar['J'] = 'nnnnwwwnn';
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$barChar['K'] = 'wnnnnnnww';
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$barChar['L'] = 'nnwnnnnww';
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$barChar['M'] = 'wnwnnnnwn';
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$barChar['N'] = 'nnnnwnnww';
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$barChar['O'] = 'wnnnwnnwn';
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$barChar['P'] = 'nnwnwnnwn';
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$barChar['Q'] = 'nnnnnnwww';
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$barChar['R'] = 'wnnnnnwwn';
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$barChar['S'] = 'nnwnnnwwn';
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$barChar['T'] = 'nnnnwnwwn';
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$barChar['U'] = 'wwnnnnnnw';
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$barChar['V'] = 'nwwnnnnnw';
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$barChar['W'] = 'wwwnnnnnn';
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$barChar['X'] = 'nwnnwnnnw';
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$barChar['Y'] = 'wwnnwnnnn';
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$barChar['Z'] = 'nwwnwnnnn';
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$barChar['-'] = 'nwnnnnwnw';
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$barChar['.'] = 'wwnnnnwnn';
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$barChar[' '] = 'nwwnnnwnn';
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$barChar['*'] = 'nwnnwnwnn';
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$barChar['$'] = 'nwnwnwnnn';
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$barChar['/'] = 'nwnwnnnwn';
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$barChar['+'] = 'nwnnnwnwn';
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$barChar['%'] = 'nnnwnwnwn';
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$xpos_dep = $xpos;
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$code = '*'.strtoupper($code).'*';
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for($i=0; $i<strlen($code); $i++){
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$char = $code{$i};
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if(!isset($barChar[$char])){
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$this->Error('Invalid character in barcode: '.$char);
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}
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$seq = $barChar[$char];
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for($bar=0; $bar<9; $bar++){
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if($seq{$bar} == 'n'){
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$lineWidth = $narrow;
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}else{
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$lineWidth = $wide;
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}
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if($bar % 2 == 0){
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$this->Rect($xpos, $ypos, $lineWidth, $height, 'F');
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}
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$xpos += $lineWidth;
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}
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$xpos += $gap;
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}
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$code_w = $xpos-$xpos_dep;
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$code_t = $code;
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$code_f = $code_w/strlen($code_t)*$this->k/0.60/3;
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$code_h = $height+$code_f/$this->k;
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//Print text uder barcode
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$this->SetFont('Arial','',$code_f);
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$this->Text($xpos_dep,$ypos+$height+0.90*$code_f/$this->k,$code_t);
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return array($code_w, $code_h);
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}
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}
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}
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?>
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