diff -r 5b37998e522e -r 162c1de6545a web/lib/Zend/Barcode/Object/Ean13.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/lib/Zend/Barcode/Object/Ean13.php	Fri Mar 11 15:05:35 2011 +0100
@@ -0,0 +1,225 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Barcode
+ * @subpackage Object
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: Ean13.php 22999 2010-09-23 19:43:14Z mikaelkael $
+ */
+
+/**
+ * @see Zend_Barcode_Object_ObjectAbstract
+ */
+require_once 'Zend/Barcode/Object/ObjectAbstract.php';
+
+/**
+ * @see Zend_Validate_Barcode
+ */
+require_once 'Zend/Validate/Barcode.php';
+
+/**
+ * Class for generate Ean13 barcode
+ *
+ * @category   Zend
+ * @package    Zend_Barcode
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Barcode_Object_Ean13 extends Zend_Barcode_Object_ObjectAbstract
+{
+
+    /**
+     * Coding map
+     * - 0 = narrow bar
+     * - 1 = wide bar
+     * @var array
+     */
+    protected $_codingMap = array(
+        'A' => array(
+            0 => "0001101", 1 => "0011001", 2 => "0010011", 3 => "0111101", 4 => "0100011",
+            5 => "0110001", 6 => "0101111", 7 => "0111011", 8 => "0110111", 9 => "0001011"
+        ),
+        'B' => array(
+            0 => "0100111", 1 => "0110011", 2 => "0011011", 3 => "0100001", 4 => "0011101",
+            5 => "0111001", 6 => "0000101", 7 => "0010001", 8 => "0001001", 9 => "0010111"
+        ),
+        'C' => array(
+            0 => "1110010", 1 => "1100110", 2 => "1101100", 3 => "1000010", 4 => "1011100",
+            5 => "1001110", 6 => "1010000", 7 => "1000100", 8 => "1001000", 9 => "1110100"
+        ));
+
+    protected $_parities = array(
+        0 => array('A','A','A','A','A','A'),
+        1 => array('A','A','B','A','B','B'),
+        2 => array('A','A','B','B','A','B'),
+        3 => array('A','A','B','B','B','A'),
+        4 => array('A','B','A','A','B','B'),
+        5 => array('A','B','B','A','A','B'),
+        6 => array('A','B','B','B','A','A'),
+        7 => array('A','B','A','B','A','B'),
+        8 => array('A','B','A','B','B','A'),
+        9 => array('A','B','B','A','B','A')
+    );
+
+    /**
+     * Default options for Postnet barcode
+     * @return void
+     */
+    protected function _getDefaultOptions()
+    {
+        $this->_barcodeLength = 13;
+        $this->_mandatoryChecksum = true;
+        $this->_mandatoryQuietZones = true;
+    }
+
+    /**
+     * Width of the barcode (in pixels)
+     * @return integer
+     */
+    protected function _calculateBarcodeWidth()
+    {
+        $quietZone       = $this->getQuietZone();
+        $startCharacter  = (3 * $this->_barThinWidth) * $this->_factor;
+        $middleCharacter = (5 * $this->_barThinWidth) * $this->_factor;
+        $stopCharacter   = (3 * $this->_barThinWidth) * $this->_factor;
+        $encodedData     = (7 * $this->_barThinWidth) * $this->_factor * 12;
+        return $quietZone + $startCharacter + $middleCharacter + $encodedData + $stopCharacter + $quietZone;
+    }
+
+    /**
+     * Partial check of interleaved EAN/UPC barcode
+     * @return void
+     */
+    protected function _checkParams()
+    {}
+
+    /**
+     * Prepare array to draw barcode
+     * @return array
+     */
+    protected function _prepareBarcode()
+    {
+        $barcodeTable = array();
+        $height = ($this->_drawText) ? 1.1 : 1;
+
+        // Start character (101)
+        $barcodeTable[] = array(1 , $this->_barThinWidth , 0 , $height);
+        $barcodeTable[] = array(0 , $this->_barThinWidth , 0 , $height);
+        $barcodeTable[] = array(1 , $this->_barThinWidth , 0 , $height);
+
+        $textTable = str_split($this->getText());
+        $parity = $this->_parities[$textTable[0]];
+
+        // First part
+        for ($i = 1; $i < 7; $i++) {
+            $bars = str_split($this->_codingMap[$parity[$i - 1]][$textTable[$i]]);
+            foreach ($bars as $b) {
+                $barcodeTable[] = array($b , $this->_barThinWidth , 0 , 1);
+            }
+        }
+
+        // Middle character (01010)
+        $barcodeTable[] = array(0 , $this->_barThinWidth , 0 , $height);
+        $barcodeTable[] = array(1 , $this->_barThinWidth , 0 , $height);
+        $barcodeTable[] = array(0 , $this->_barThinWidth , 0 , $height);
+        $barcodeTable[] = array(1 , $this->_barThinWidth , 0 , $height);
+        $barcodeTable[] = array(0 , $this->_barThinWidth , 0 , $height);
+
+        // Second part
+        for ($i = 7; $i < 13; $i++) {
+            $bars = str_split($this->_codingMap['C'][$textTable[$i]]);
+            foreach ($bars as $b) {
+                $barcodeTable[] = array($b , $this->_barThinWidth , 0 , 1);
+            }
+        }
+
+        // Stop character (101)
+        $barcodeTable[] = array(1 , $this->_barThinWidth , 0 , $height);
+        $barcodeTable[] = array(0 , $this->_barThinWidth , 0 , $height);
+        $barcodeTable[] = array(1 , $this->_barThinWidth , 0 , $height);
+        return $barcodeTable;
+    }
+
+    /**
+     * Get barcode checksum
+     *
+     * @param  string $text
+     * @return int
+     */
+    public function getChecksum($text)
+    {
+        $this->_checkText($text);
+        $factor   = 3;
+        $checksum = 0;
+
+        for ($i = strlen($text); $i > 0; $i --) {
+            $checksum += intval($text{$i - 1}) * $factor;
+            $factor    = 4 - $factor;
+        }
+
+        $checksum = (10 - ($checksum % 10)) % 10;
+
+        return $checksum;
+    }
+
+    /**
+     * Partial function to draw text
+     * @return void
+     */
+    protected function _drawText()
+    {
+        if (get_class($this) == 'Zend_Barcode_Object_Ean13') {
+            $this->_drawEan13Text();
+        } else {
+            parent::_drawText();
+        }
+    }
+
+    protected function _drawEan13Text()
+    {
+        if ($this->_drawText) {
+            $text = $this->getTextToDisplay();
+            $characterWidth = (7 * $this->_barThinWidth) * $this->_factor;
+            $leftPosition = $this->getQuietZone() - $characterWidth;
+            for ($i = 0; $i < $this->_barcodeLength; $i ++) {
+                $this->_addText(
+                    $text{$i},
+                    $this->_fontSize * $this->_factor,
+                    $this->_rotate(
+                        $leftPosition,
+                        (int) $this->_withBorder * 2
+                            + $this->_factor * ($this->_barHeight + $this->_fontSize) + 1
+                    ),
+                    $this->_font,
+                    $this->_foreColor,
+                    'left',
+                    - $this->_orientation
+                );
+                switch ($i) {
+                    case 0:
+                        $factor = 3;
+                        break;
+                    case 6:
+                        $factor = 4;
+                        break;
+                    default:
+                        $factor = 0;
+                }
+                $leftPosition = $leftPosition + $characterWidth + ($factor * $this->_barThinWidth * $this->_factor);
+            }
+        }
+    }
+}