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: Ean8.php 21667 2010-03-28 17:45:14Z mikaelkael $

    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 Ean8 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_Ean8 extends Zend_Barcode_Object_Ean13

    42 {

    43 

    44     /**

    45      * Default options for Postnet barcode

    46      * @return void

    47      */

    48     protected function _getDefaultOptions()

    49     {

    50         $this->_barcodeLength = 8;

    51         $this->_mandatoryChecksum = true;

    52     }

    53 

    54     /**

    55      * Width of the barcode (in pixels)

    56      * @return integer

    57      */

    58     protected function _calculateBarcodeWidth()

    59     {

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

    61         $startCharacter  = (3 * $this->_barThinWidth) * $this->_factor;

    62         $middleCharacter = (5 * $this->_barThinWidth) * $this->_factor;

    63         $stopCharacter   = (3 * $this->_barThinWidth) * $this->_factor;

    64         $encodedData     = (7 * $this->_barThinWidth) * $this->_factor * 8;

    65         return $quietZone + $startCharacter + $middleCharacter + $encodedData + $stopCharacter + $quietZone;

    66     }

    67 

    68         /**

    69      * Prepare array to draw barcode

    70      * @return array

    71      */

    72     protected function _prepareBarcode()

    73     {

    74         $barcodeTable = array();

    75         $height = ($this->_drawText) ? 1.1 : 1;

    76 

    77         // Start character (101)

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

    79         $barcodeTable[] = array(0 , $this->_barThinWidth , 0 , $height);

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

    81 

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

    83 

    84         // First part

    85         for ($i = 0; $i < 4; $i++) {

    86             $bars = str_split($this->_codingMap['A'][$textTable[$i]]);

    87             foreach ($bars as $b) {

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

    89             }

    90         }

    91 

    92         // Middle character (01010)

    93         $barcodeTable[] = array(0 , $this->_barThinWidth , 0 , $height);

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

    95         $barcodeTable[] = array(0 , $this->_barThinWidth , 0 , $height);

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

    97         $barcodeTable[] = array(0 , $this->_barThinWidth , 0 , $height);

    98 

    99         // Second part

   100         for ($i = 4; $i < 8; $i++) {

   101             $bars = str_split($this->_codingMap['C'][$textTable[$i]]);

   102             foreach ($bars as $b) {

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

   104             }

   105         }

   106 

   107         // Stop character (101)

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

   109         $barcodeTable[] = array(0 , $this->_barThinWidth , 0 , $height);

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

   111         return $barcodeTable;

   112     }

   113 

   114     /**

   115      * Partial function to draw text

   116      * @return void

   117      */

   118     protected function _drawText()

   119     {

   120         if ($this->_drawText) {

   121             $text = $this->getTextToDisplay();

   122             $characterWidth = (7 * $this->_barThinWidth) * $this->_factor;

   123             $leftPosition = $this->getQuietZone() + (3 * $this->_barThinWidth) * $this->_factor;

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

   125                 $this->_addText(

   126                     $text{$i},

   127                     $this->_fontSize * $this->_factor,

   128                     $this->_rotate(

   129                         $leftPosition,

   130                         (int) $this->_withBorder * 2

   131                             + $this->_factor * ($this->_barHeight + $this->_fontSize) + 1

   132                     ),

   133                     $this->_font,

   134                     $this->_foreColor,

   135                     'left',

   136                     - $this->_orientation

   137                 );

   138                 switch ($i) {

   139                     case 3:

   140                         $factor = 4;

   141                         break;

   142                     default:

   143                         $factor = 0;

   144                 }

   145                 $leftPosition = $leftPosition + $characterWidth + ($factor * $this->_barThinWidth * $this->_factor);

   146             }

   147         }

   148     }

   149 

   150     /**

   151      * Particular validation for Ean8 barcode objects

   152      * (to suppress checksum character substitution)

   153      * @param string $value

   154      * @param array  $options

   155      */

   156     protected function _validateText($value, $options = array())

   157     {

   158         $validator = new Zend_Validate_Barcode(array(

   159             'adapter'  => 'ean8',

   160             'checksum' => false,

   161         ));

   162 

   163         $value = $this->_addLeadingZeros($value, true);

   164 

   165         if (!$validator->isValid($value)) {

   166             $message = implode("\n", $validator->getMessages());

   167 

   168             /**

   169              * @see Zend_Barcode_Object_Exception

   170              */

   171             require_once 'Zend/Barcode/Object/Exception.php';

   172             throw new Zend_Barcode_Object_Exception($message);

   173         }

   174     }

   175 }