interface/modules/zend_modules/library/Zend/Barcode/Object/Ean8.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 use Zend\Validator\Barcode as BarcodeValidator;
  13
  14 /**
  15  * Class for generate Ean8 barcode
  16  */
  17 class Ean8 extends Ean13
  18 {
  19
  20     /**
  21      * Default options for Postnet barcode
  22      * @return void
  23      */
  24     protected function getDefaultOptions()
  25     {
  26         $this->barcodeLength = 8;
  27         $this->mandatoryChecksum = true;
  28     }
  29
  30     /**
  31      * Width of the barcode (in pixels)
  32      * @return int
  33      */
  34     protected function calculateBarcodeWidth()
  35     {
  36         $quietZone       = $this->getQuietZone();
  37         $startCharacter  = (3 * $this->barThinWidth) * $this->factor;
  38         $middleCharacter = (5 * $this->barThinWidth) * $this->factor;
  39         $stopCharacter   = (3 * $this->barThinWidth) * $this->factor;
  40         $encodedData     = (7 * $this->barThinWidth) * $this->factor * 8;
  41         return $quietZone + $startCharacter + $middleCharacter + $encodedData + $stopCharacter + $quietZone;
  42     }
  43
  44         /**
  45      * Prepare array to draw barcode
  46      * @return array
  47      */
  48     protected function prepareBarcode()
  49     {
  50         $barcodeTable = array();
  51         $height = ($this->drawText) ? 1.1 : 1;
  52
  53         // Start character (101)
  54         $barcodeTable[] = array(1, $this->barThinWidth, 0, $height);
  55         $barcodeTable[] = array(0, $this->barThinWidth, 0, $height);
  56         $barcodeTable[] = array(1, $this->barThinWidth, 0, $height);
  57
  58         $textTable = str_split($this->getText());
  59
  60         // First part
  61         for ($i = 0; $i < 4; $i++) {
  62             $bars = str_split($this->codingMap['A'][$textTable[$i]]);
  63             foreach ($bars as $b) {
  64                 $barcodeTable[] = array($b, $this->barThinWidth, 0, 1);
  65             }
  66         }
  67
  68         // Middle character (01010)
  69         $barcodeTable[] = array(0, $this->barThinWidth, 0, $height);
  70         $barcodeTable[] = array(1, $this->barThinWidth, 0, $height);
  71         $barcodeTable[] = array(0, $this->barThinWidth, 0, $height);
  72         $barcodeTable[] = array(1, $this->barThinWidth, 0, $height);
  73         $barcodeTable[] = array(0, $this->barThinWidth, 0, $height);
  74
  75         // Second part
  76         for ($i = 4; $i < 8; $i++) {
  77             $bars = str_split($this->codingMap['C'][$textTable[$i]]);
  78             foreach ($bars as $b) {
  79                 $barcodeTable[] = array($b, $this->barThinWidth, 0, 1);
  80             }
  81         }
  82
  83         // Stop character (101)
  84         $barcodeTable[] = array(1, $this->barThinWidth, 0, $height);
  85         $barcodeTable[] = array(0, $this->barThinWidth, 0, $height);
  86         $barcodeTable[] = array(1, $this->barThinWidth, 0, $height);
  87         return $barcodeTable;
  88     }
  89
  90     /**
  91      * Partial function to draw text
  92      * @return void
  93      */
  94     protected function drawText()
  95     {
  96         if ($this->drawText) {
  97             $text = $this->getTextToDisplay();
  98             $characterWidth = (7 * $this->barThinWidth) * $this->factor;
  99             $leftPosition = $this->getQuietZone() + (3 * $this->barThinWidth) * $this->factor;
 100             for ($i = 0; $i < $this->barcodeLength; $i ++) {
 101                 $this->addText(
 102                     $text{$i},
 103                     $this->fontSize * $this->factor,
 104                     $this->rotate(
 105                         $leftPosition,
 106                         (int) $this->withBorder * 2
 107                             + $this->factor * ($this->barHeight + $this->fontSize) + 1
 108                     ),
 109                     $this->font,
 110                     $this->foreColor,
 111                     'left',
 112                     - $this->orientation
 113                 );
 114                 switch ($i) {
 115                     case 3:
 116                         $factor = 4;
 117                         break;
 118                     default:
 119                         $factor = 0;
 120                 }
 121                 $leftPosition = $leftPosition + $characterWidth + ($factor * $this->barThinWidth * $this->factor);
 122             }
 123         }
 124     }
 125
 126     /**
 127      * Particular validation for Ean8 barcode objects
 128      * (to suppress checksum character substitution)
 129      *
 130      * @param string $value
 131      * @param array  $options
 132      * @throws Exception\BarcodeValidationException
 133      */
 134     protected function validateSpecificText($value, $options = array())
 135     {
 136         $validator = new BarcodeValidator(array(
 137             'adapter'  => 'ean8',
 138             'checksum' => false,
 139         ));
 140
 141         $value = $this->addLeadingZeros($value, true);
 142
 143         if (!$validator->isValid($value)) {
 144             $message = implode("\n", $validator->getMessages());
 145             throw new Exception\BarcodeValidationException($message);
 146         }
 147     }
 148 }