118 lines
3.3 KiB
PHP
118 lines
3.3 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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* code11.php
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*--------------------------------------------------------------------
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*
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* Sub-Class - Code 11
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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 code11 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','-');
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$this->code = array( // 0 added to add an extra space
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'000010', /* 0 */
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'100010', /* 1 */
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'010010', /* 2 */
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'110000', /* 3 */
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'001010', /* 4 */
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'101000', /* 5 */
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'011000', /* 6 */
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'000110', /* 7 */
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'100100', /* 8 */
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'100000', /* 9 */
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'001000' /* - */
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);
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$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 = $text;
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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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// Starting Code
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$this->DrawChar($im,'001100',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[$i]),1);
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// Checksum
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// First CheckSUM "C"
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// The "C" checksum character is the modulo 11 remainder of the sum of the weighted
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// value of the data characters. The weighting value starts at "1" for the right-most
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// data character, 2 for the second to last, 3 for the third-to-last, and so on up to 20.
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// After 10, the sequence wraps around back to 1.
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// Second CheckSUM "K"
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// Same as CheckSUM "C" but we count the CheckSum "C" at the end
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// After 9, the sequence wraps around back to 1.
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$sequence_multiplier = array(10,9);
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$temp_text = $this->text;
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for($z=0;$z<2;$z++) {
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// We don't display the K CheckSum if the original text had a length less than 10
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if(strlen($temp_text)<=10 && $z==1)
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break;
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$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->findCode($checksum % 11),1);
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$temp_text .= $this->keys[$checksum % 11];
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}
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// Ending Code
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$this->DrawChar($im,'00110',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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