interface/modules/zend_modules/library/Zend/Barcode/Object/Code25.php

   1 <?php
   2 /**
   3  * Zend Framework (http://framework.zend.com/)
   4  *
   5  * @link      http://github.com/zendframework/zf2 for the canonical source repository
   6  * @copyright Copyright (c) 2005-2013 Zend Technologies USA Inc. (http://www.zend.com)
   7  * @license   http://framework.zend.com/license/new-bsd New BSD License
   8  */
   9
  10 namespace Zend\Barcode\Object;
  11
  12 /**
  13  * Class for generate Interleaved 2 of 5 barcode
  14  */
  15 class Code25 extends AbstractObject
  16 {
  17     /**
  18      * Coding map
  19      * - 0 = narrow bar
  20      * - 1 = wide bar
  21      * @var array
  22      */
  23     protected $codingMap = array(
  24         '0' => '00110',
  25         '1' => '10001',
  26         '2' => '01001',
  27         '3' => '11000',
  28         '4' => '00101',
  29         '5' => '10100',
  30         '6' => '01100',
  31         '7' => '00011',
  32         '8' => '10010',
  33         '9' => '01010',
  34     );
  35
  36     /**
  37      * Width of the barcode (in pixels)
  38      * @return int
  39      */
  40     protected function calculateBarcodeWidth()
  41     {
  42         $quietZone       = $this->getQuietZone();
  43         $startCharacter  = (2 * $this->barThickWidth + 4 * $this->barThinWidth) * $this->factor;
  44         $characterLength = (3 * $this->barThinWidth + 2 * $this->barThickWidth + 5 * $this->barThinWidth)
  45                          * $this->factor;
  46         $encodedData     = strlen($this->getText()) * $characterLength;
  47         $stopCharacter   = (2 * $this->barThickWidth + 4 * $this->barThinWidth) * $this->factor;
  48         return $quietZone + $startCharacter + $encodedData + $stopCharacter + $quietZone;
  49     }
  50
  51     /**
  52      * Partial check of interleaved 2 of 5 barcode
  53      * @return void
  54      */
  55     protected function checkSpecificParams()
  56     {
  57         $this->checkRatio();
  58     }
  59
  60     /**
  61      * Prepare array to draw barcode
  62      * @return array
  63      */
  64     protected function prepareBarcode()
  65     {
  66         $barcodeTable = array();
  67
  68         // Start character (30301)
  69         $barcodeTable[] = array(1, $this->barThickWidth, 0, 1);
  70         $barcodeTable[] = array(0, $this->barThinWidth, 0, 1);
  71         $barcodeTable[] = array(1, $this->barThickWidth, 0, 1);
  72         $barcodeTable[] = array(0, $this->barThinWidth, 0, 1);
  73         $barcodeTable[] = array(1, $this->barThinWidth, 0, 1);
  74         $barcodeTable[] = array(0, $this->barThinWidth);
  75
  76         $text = str_split($this->getText());
  77         foreach ($text as $char) {
  78             $barcodeChar = str_split($this->codingMap[$char]);
  79             foreach ($barcodeChar as $c) {
  80                 /* visible, width, top, length */
  81                 $width = $c ? $this->barThickWidth : $this->barThinWidth;
  82                 $barcodeTable[] = array(1, $width, 0, 1);
  83                 $barcodeTable[] = array(0, $this->barThinWidth);
  84             }
  85         }
  86
  87         // Stop character (30103)
  88         $barcodeTable[] = array(1, $this->barThickWidth, 0, 1);
  89         $barcodeTable[] = array(0, $this->barThinWidth, 0, 1);
  90         $barcodeTable[] = array(1, $this->barThinWidth, 0, 1);
  91         $barcodeTable[] = array(0, $this->barThinWidth, 0, 1);
  92         $barcodeTable[] = array(1, $this->barThickWidth, 0, 1);
  93         return $barcodeTable;
  94     }
  95
  96     /**
  97      * Get barcode checksum
  98      *
  99      * @param  string $text
 100      * @return int
 101      */
 102     public function getChecksum($text)
 103     {
 104         $this->checkText($text);
 105         $factor   = 3;
 106         $checksum = 0;
 107
 108         for ($i = strlen($text); $i > 0; $i --) {
 109             $checksum += intval($text{$i - 1}) * $factor;
 110             $factor    = 4 - $factor;
 111         }
 112
 113         $checksum = (10 - ($checksum % 10)) % 10;
 114
 115         return $checksum;
 116     }
 117 }