First Commit

include/barcode/upcext5.barcode.php

@@ -0,0 +1,163 @@
+<?php
+if(!defined('IN_CB'))die('You are not allowed to access to this page.');
+
+/**
+ * upcext5.php
+ *--------------------------------------------------------------------
+ *
+ * Sub-Class - UPC Supplemental Barcode 2 digits
+ *
+ * Working with UPC-A, UPC-E, EAN-13, EAN-8
+ * This includes 5 digits (normaly for suggested retail price)
+ * Must be placed next to UPC or EAN Code
+ * If 90000 -> No suggested Retail Price
+ * If 99991 -> Book Complimentary (normally free)
+ * If 90001 to 98999 -> Internal Purpose of Publisher
+ * If 99990 -> Used by the National Association of College Stores to mark used books
+ * If 0xxxx -> Price Expressed in British Pounds (xx.xx)
+ * If 5xxxx -> Price Expressed in U.S. dollars (US$xx.xx)
+ *
+ *--------------------------------------------------------------------
+ * Revision History
+ * V1.00	17 jun	2004	Jean-Sebastien Goupil
+ *--------------------------------------------------------------------
+ * Copyright (C) Jean-Sebastien Goupil
+ * http://other.lookstrike.com/barcode/
+ */
+class upcext5 extends BarCode {
+	protected $keys = array(), $code = array(), $codeParity = array();
+	private $starting, $ending;
+	protected $text;
+	protected $textfont;
+
+	/**
+	 * Constructor
+	 *
+	 * @param int $maxHeight
+	 * @param FColor $color1
+	 * @param FColor $color2
+	 * @param int $res
+	 * @param string $text
+	 * @param int $textfont
+	 */
+	public function __construct($maxHeight,FColor $color1,FColor $color2,$res,$text,$textfont) {
+		BarCode::__construct($maxHeight,$color1,$color2,$res);
+		$this->keys = array('0','1','2','3','4','5','6','7','8','9');
+		$this->code = array(
+			'2100',	/* 0 */
+			'1110',	/* 1 */
+			'1011',	/* 2 */
+			'0300',	/* 3 */
+			'0021',	/* 4 */
+			'0120',	/* 5 */
+			'0003',	/* 6 */
+			'0201',	/* 7 */
+			'0102',	/* 8 */
+			'2001'	/* 9 */
+		);
+		// Parity, 0=Odd, 1=Even. Depending Checksum
+		$this->codeParity = array(
+			array(1,1,0,0,0),	/* 0 */
+			array(1,0,1,0,0),	/* 1 */
+			array(1,0,0,1,0),	/* 2 */
+			array(1,0,0,0,1),	/* 3 */
+			array(0,1,1,0,0),	/* 4 */
+			array(0,0,1,1,0),	/* 5 */
+			array(0,0,0,1,1),	/* 6 */
+			array(0,1,0,1,0),	/* 7 */
+			array(0,1,0,0,1),	/* 8 */
+			array(0,0,1,0,1)	/* 9 */
+		);
+		$this->setText($text);
+		$this->textfont = $textfont;
+	}
+
+	/**
+	 * Saves Text
+	 *
+	 * @param string $text
+	 */
+	public function setText($text){
+		$this->text = $text;
+	}
+
+	private function inverse($text,$inverse=1) {
+		if($inverse == 1)
+			$text = strrev($text);
+		return $text;
+	}
+
+	/**
+	 * Draws the barcode
+	 *
+	 * @param ressource $im
+	 */
+	public function draw($im) {
+		$error_stop = false;
+
+		// Checking if all chars are allowed
+		for($i=0;$i<strlen($this->text);$i++) {
+			if(!is_int(array_search($this->text[$i],$this->keys))) {
+				$this->DrawError($im,'Char \''.$this->text[$i].'\' not allowed.');
+				$error_stop = true;
+			}
+		}
+		if($error_stop == false) {
+			// Must contains 5 chars
+			if(strlen($this->text) != 5) {
+				$this->DrawError($im,'Must contains 5 chars.');
+				$error_stop = true;
+			}
+			if($error_stop == false) {
+				// Calculating Checksum
+				// Consider the right-most digit of the message to be in an "odd" position,
+				// and assign odd/even to each character moving from right to left
+				// Odd Position = 3, Even Position = 9
+				// Multiply it by the number
+				// Add all of that and do 10-(?mod10)
+				$odd = true;
+				$checksum=0;
+				for($i=strlen($this->text);$i>0;$i--) {
+					if($odd==true) {
+						$multiplier=3;
+						$odd=false;
+					}
+					else {
+						$multiplier=9;
+						$odd=true;
+					}
+					$checksum += $this->keys[$this->text[$i - 1]] * $multiplier;
+				}
+				$checksum = intval(substr(strval($checksum),strlen(strval($checksum))-1,1));
+				// If we have to write text, we move the barcode to the bottom to put text
+				$this->positionY = ($this->textfont == 0)?0:15;
+				// Starting Code
+				$this->DrawChar($im,'001',1);
+				// Code
+				for($i=0;$i<5;$i++){
+					$this->DrawChar($im,$this->inverse($this->findCode($this->text[$i]),$this->codeParity[$checksum][$i]),2);
+					if($i < 4)
+						$this->DrawChar($im,'00',2);	// Inter-char
+				}
+				$this->lastX = $this->positionX;
+				$this->lastY = $this->maxHeight;
+				$this->DrawText($im);
+			}
+		}
+	}
+
+	/**
+	 * Overloaded method for drawing special label
+	 *
+	 * @param ressource $im
+	 */
+	protected function DrawText($im) {
+		if($this->textfont != 0) {
+			$bar_color = (is_null($this->color1))?NULL:$this->color1->allocate($im);
+			if(!is_null($bar_color)) 
+				imagestring($im,$this->textfont,$this->positionX/2-imagefontwidth($this->textfont)*(strlen($this->text)/2),1,$this->text,$bar_color);
+			$this->lastY += 15;
+		}
+	}
+};
+?>