diff -r bd595ad770fc -r 1c2f13fd785c web/enmi/Zend/Barcode/Object/Postnet.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/enmi/Zend/Barcode/Object/Postnet.php	Thu Jan 20 19:30:54 2011 +0100
@@ -0,0 +1,136 @@
+<?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: Postnet.php 20096 2010-01-06 02:05:09Z bkarwin $
+ */
+
+/**
+ * @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 Postnet 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_Postnet extends Zend_Barcode_Object_ObjectAbstract
+{
+
+    /**
+     * Coding map
+     * - 0 = half bar
+     * - 1 = complete bar
+     * @var array
+     */
+    protected $_codingMap = array(
+        0 => "11000",
+        1 => "00011",
+        2 => "00101",
+        3 => "00110",
+        4 => "01001",
+        5 => "01010",
+        6 => "01100",
+        7 => "10001",
+        8 => "10010",
+        9 => "10100"
+    );
+
+    /**
+     * Default options for Postnet barcode
+     * @return void
+     */
+    protected function _getDefaultOptions()
+    {
+        $this->_barThinWidth = 2;
+        $this->_barHeight = 20;
+        $this->_drawText = false;
+        $this->_stretchText = true;
+        $this->_mandatoryChecksum = true;
+    }
+
+    /**
+     * Width of the barcode (in pixels)
+     * @return integer
+     */
+    protected function _calculateBarcodeWidth()
+    {
+        $quietZone       = $this->getQuietZone();
+        $startCharacter  = (2 * $this->_barThinWidth) * $this->_factor;
+        $stopCharacter   = (1 * $this->_barThinWidth) * $this->_factor;
+        $encodedData     = (10 * $this->_barThinWidth) * $this->_factor * strlen($this->getText());
+        return $quietZone + $startCharacter + $encodedData + $stopCharacter + $quietZone;
+    }
+
+    /**
+     * Partial check of interleaved Postnet barcode
+     * @return void
+     */
+    protected function _checkParams()
+    {}
+
+    /**
+     * Prepare array to draw barcode
+     * @return array
+     */
+    protected function _prepareBarcode()
+    {
+        $barcodeTable = array();
+
+        // Start character (1)
+        $barcodeTable[] = array(1 , $this->_barThinWidth , 0 , 1);
+        $barcodeTable[] = array(0 , $this->_barThinWidth , 0 , 1);
+
+        // Text to encode
+        $textTable = str_split($this->getText());
+        foreach ($textTable as $char) {
+            $bars = str_split($this->_codingMap[$char]);
+            foreach ($bars as $b) {
+                $barcodeTable[] = array(1 , $this->_barThinWidth , 0.5 - $b * 0.5 , 1);
+                $barcodeTable[] = array(0 , $this->_barThinWidth , 0 , 1);
+            }
+        }
+
+        // Stop character (1)
+        $barcodeTable[] = array(1 , $this->_barThinWidth , 0 , 1);
+        return $barcodeTable;
+    }
+
+    /**
+     * Get barcode checksum
+     *
+     * @param  string $text
+     * @return int
+     */
+    public function getChecksum($text)
+    {
+        $this->_checkText($text);
+        $sum = array_sum(str_split($text));
+        $checksum = (10 - ($sum % 10)) % 10;
+        return $checksum;
+    }
+}