131 lines
3.3 KiB
PHP
131 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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* upcext2.php
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*--------------------------------------------------------------------
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*
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* Sub-Class - UPC Supplemental Barcode 2 digits
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*
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* Working with UPC-A, UPC-E, EAN-13, EAN-8
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* This includes 2 digits (normaly for publications)
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* Must be placed next to UPC or EAN Code
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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 upcext2 extends BarCode {
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protected $keys = array(), $code = array(), $codeParity = 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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$this->keys = array('0','1','2','3','4','5','6','7','8','9');
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$this->code = array(
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'2100', /* 0 */
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'1110', /* 1 */
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'1011', /* 2 */
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'0300', /* 3 */
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'0021', /* 4 */
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'0120', /* 5 */
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'0003', /* 6 */
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'0201', /* 7 */
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'0102', /* 8 */
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'2001' /* 9 */
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);
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// Parity, 0=Odd, 1=Even. Depending on ?%4
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$this->codeParity = array(
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array(0,0), /* 0 */
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array(0,1), /* 1 */
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array(1,0), /* 2 */
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array(1,1) /* 3 */
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);
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$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 = $text;
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}
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private function inverse($text,$inverse=1) {
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if($inverse == 1)
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$text = strrev($text);
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return $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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// Must contains 2 chars
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if(strlen($this->text) != 2) {
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$this->DrawError($im,'Must contains 2 chars.');
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$error_stop = true;
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}
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if($error_stop == false) {
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// If we have to write text, we move the barcode to the bottom to put text
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$this->positionY = ($this->textfont == 0)?0:15;
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// Starting Code
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$this->DrawChar($im,'001',1);
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// Code
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for($i=0;$i<2;$i++){
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$this->DrawChar($im,$this->inverse($this->findCode($this->text[$i]),$this->codeParity[intval($this->text%4)][$i]),2);
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if($i == 0)
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$this->DrawChar($im,'00',2); // Inter-char
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}
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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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* Overloaded method for drawing special label
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*
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* @param ressource $im
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*/
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protected function DrawText($im) {
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if($this->textfont != 0) {
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$bar_color = (is_null($this->color1))?NULL:$this->color1->allocate($im);
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if(!is_null($bar_color))
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imagestring($im,$this->textfont,$this->positionX/2-imagefontwidth($this->textfont)*(strlen($this->text)/2),1,$this->text,$bar_color);
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$this->lastY += 15;
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}
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}
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};
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?>
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