1 <?php

     2 /**

     3  * Zend Framework

     4  *

     5  * LICENSE

     6  *

     7  * This source file is subject to the new BSD license that is bundled

     8  * with this package in the file LICENSE.txt.

     9  * It is also available through the world-wide-web at this URL:

    10  * http://framework.zend.com/license/new-bsd

    11  * If you did not receive a copy of the license and are unable to

    12  * obtain it through the world-wide-web, please send an email

    13  * to license@zend.com so we can send you a copy immediately.

    14  *

    15  * @category   Zend

    16  * @package    Zend_Barcode

    17  * @subpackage Object

    18  * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

    19  * @license    http://framework.zend.com/license/new-bsd     New BSD License

    20  * @version    $Id: Ean5.php 20096 2010-01-06 02:05:09Z bkarwin $

    21  */

    22 

    23 /**

    24  * @see Zend_Barcode_Object_Ean13

    25  */

    26 require_once 'Zend/Barcode/Object/Ean13.php';

    27 

    28 /**

    29  * @see Zend_Validate_Barcode

    30  */

    31 require_once 'Zend/Validate/Barcode.php';

    32 

    33 /**

    34  * Class for generate Ean5 barcode

    35  *

    36  * @category   Zend

    37  * @package    Zend_Barcode

    38  * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

    39  * @license    http://framework.zend.com/license/new-bsd     New BSD License

    40  */

    41 class Zend_Barcode_Object_Ean5 extends Zend_Barcode_Object_Ean13

    42 {

    43 

    44     protected $_parities = array(

    45         0 => array('B','B','A','A','A'),

    46         1 => array('B','A','B','A','A'),

    47         2 => array('B','A','A','B','A'),

    48         3 => array('B','A','A','A','B'),

    49         4 => array('A','B','B','A','A'),

    50         5 => array('A','A','B','B','A'),

    51         6 => array('A','A','A','B','B'),

    52         7 => array('A','B','A','B','A'),

    53         8 => array('A','B','A','A','B'),

    54         9 => array('A','A','B','A','B')

    55     );

    56 

    57     /**

    58      * Default options for Ean5 barcode

    59      * @return void

    60      */

    61     protected function _getDefaultOptions()

    62     {

    63         $this->_barcodeLength = 5;

    64     }

    65 

    66     /**

    67      * Width of the barcode (in pixels)

    68      * @return integer

    69      */

    70     protected function _calculateBarcodeWidth()

    71     {

    72         $quietZone       = $this->getQuietZone();

    73         $startCharacter  = (5 * $this->_barThinWidth) * $this->_factor;

    74         $middleCharacter = (2 * $this->_barThinWidth) * $this->_factor;

    75         $encodedData     = (7 * $this->_barThinWidth) * $this->_factor;

    76         return $quietZone + $startCharacter + ($this->_barcodeLength - 1) * $middleCharacter + $this->_barcodeLength * $encodedData + $quietZone;

    77     }

    78 

    79     /**

    80      * Prepare array to draw barcode

    81      * @return array

    82      */

    83     protected function _prepareBarcode()

    84     {

    85         $barcodeTable = array();

    86 

    87         // Start character (01011)

    88         $barcodeTable[] = array(0 , $this->_barThinWidth , 0 , 1);

    89         $barcodeTable[] = array(1 , $this->_barThinWidth , 0 , 1);

    90         $barcodeTable[] = array(0 , $this->_barThinWidth , 0 , 1);

    91         $barcodeTable[] = array(1 , $this->_barThinWidth , 0 , 1);

    92         $barcodeTable[] = array(1 , $this->_barThinWidth , 0 , 1);

    93 

    94         $firstCharacter = true;

    95         $textTable = str_split($this->getText());

    96 

    97         // Characters

    98         for ($i = 0; $i < $this->_barcodeLength; $i++) {

    99             if ($firstCharacter) {

   100                 $firstCharacter = false;

   101             } else {

   102                 // Intermediate character (01)

   103                 $barcodeTable[] = array(0 , $this->_barThinWidth , 0 , 1);

   104                 $barcodeTable[] = array(1 , $this->_barThinWidth , 0 , 1);

   105             }

   106             $bars = str_split($this->_codingMap[$this->_getParity($i)][$textTable[$i]]);

   107             foreach ($bars as $b) {

   108                 $barcodeTable[] = array($b , $this->_barThinWidth , 0 , 1);

   109             }

   110         }

   111 

   112         return $barcodeTable;

   113     }

   114 

   115     /**

   116      * Get barcode checksum

   117      *

   118      * @param  string $text

   119      * @return int

   120      */

   121     public function getChecksum($text)

   122     {

   123         $this->_checkText($text);

   124         $checksum = 0;

   125 

   126         for ($i = 0 ; $i < $this->_barcodeLength; $i ++) {

   127             $checksum += intval($text{$i}) * ($i % 2 ? 9 : 3);

   128         }

   129 

   130         return ($checksum % 10);

   131     }

   132 

   133     protected function _getParity($i)

   134     {

   135         $checksum = $this->getChecksum($this->getText());

   136         return $this->_parities[$checksum][$i];

   137     }

   138 

   139     /**

   140      * Retrieve text to encode

   141      * @return string

   142      */

   143     public function getText()

   144     {

   145         return $this->_addLeadingZeros($this->_text);

   146     }

   147 }