162 lines
4.4 KiB
PHP
162 lines
4.4 KiB
PHP
<?php
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if(!defined('IN_CB'))die('You are not allowed to access to this page.');
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/**
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* code93.php
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*--------------------------------------------------------------------
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*
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* Sub-Class - Code 93
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*
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*--------------------------------------------------------------------
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* Revision History
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* V1.00 17 jun 2004 Jean-Sebastien Goupil
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*--------------------------------------------------------------------
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* Copyright (C) Jean-Sebastien Goupil
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* http://other.lookstrike.com/barcode/
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*/
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class code93 extends BarCode {
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protected $keys = array(), $code = array();
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private $starting, $ending;
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protected $text;
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protected $textfont;
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/**
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* Constructor
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*
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* @param int $maxHeight
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* @param FColor $color1
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* @param FColor $color2
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* @param int $res
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* @param string $text
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* @param int $textfont
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*/
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public function __construct($maxHeight,FColor $color1,FColor $color2,$res,$text,$textfont) {
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BarCode::__construct($maxHeight,$color1,$color2,$res);
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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', /*($)*/
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'201000', /*(%)*/
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'200010', /*(/)*/
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'011100', /*(+)*/
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'000030' /* * */
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);
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$this->setText($text);
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$this->textfont = $textfont;
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}
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/**
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* Saves Text
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*
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* @param string $text
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*/
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public function setText($text) {
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$this->text = strtoupper($text); // Only Capital Letters are Allowed
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}
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/**
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* Draws the barcode
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*
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* @param ressource $im
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*/
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public function draw($im) {
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$error_stop = false;
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// Checking if all chars are allowed
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for($i=0;$i<strlen($this->text);$i++) {
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if(!is_int(array_search($this->text[$i],$this->keys))) {
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$this->DrawError($im,'Char \''.$this->text[$i].'\' not allowed.');
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$error_stop = true;
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}
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}
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if($error_stop == false) {
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// The * is not allowed
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if(is_int(strpos($this->text,'*'))) {
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$this->DrawError($im,'Char \'*\' not allowed.');
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$error_stop = true;
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}
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if($error_stop == false) {
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// Starting *
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$this->DrawChar($im,$this->code[$this->starting],1);
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// Chars
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for($i=0;$i<strlen($this->text);$i++)
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$this->DrawChar($im,$this->findCode($this->text[$i]),1);
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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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$sequence_multiplier = array(20,15);
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$temp_text = $this->text;
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for($z=0;$z<2;$z++) {
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$checksum = 0;
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for($i=strlen($temp_text),$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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$checksum += $this->findIndex($temp_text[$j]) * $multiplier;
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}
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$this->DrawChar($im,$this->code[$checksum % 47],1);
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$temp_text .= $this->keys[$checksum % 47];
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}
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// Ending *
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$this->DrawChar($im,$this->code[$this->ending],1);
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// Draw a Final Bar
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$this->DrawChar($im,'0',1);
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$this->lastX = $this->positionX;
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$this->lastY = $this->maxHeight;
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$this->DrawText($im);
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}
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}
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}
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};
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?>
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