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 <?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) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  * @version    $Id$
  */
 
 /**
  * @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 Code39 barcode
  *
  * @category   Zend
  * @package    Zend_Barcode
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  */
 class Zend_Barcode_Object_Code39 extends Zend_Barcode_Object_ObjectAbstract
 {
     /**
      * Coding map
      * @var array
      */
     protected $_codingMap = array(
         '0' => '000110100',
         '1' => '100100001',
         '2' => '001100001',
         '3' => '101100000',
         '4' => '000110001',
         '5' => '100110000',
         '6' => '001110000',
         '7' => '000100101',
         '8' => '100100100',
         '9' => '001100100',
         'A' => '100001001',
         'B' => '001001001',
         'C' => '101001000',
         'D' => '000011001',
         'E' => '100011000',
         'F' => '001011000',
         'G' => '000001101',
         'H' => '100001100',
         'I' => '001001100',
         'J' => '000011100',
         'K' => '100000011',
         'L' => '001000011',
         'M' => '101000010',
         'N' => '000010011',
         'O' => '100010010',
         'P' => '001010010',
         'Q' => '000000111',
         'R' => '100000110',
         'S' => '001000110',
         'T' => '000010110',
         'U' => '110000001',
         'V' => '011000001',
         'W' => '111000000',
         'X' => '010010001',
         'Y' => '110010000',
         'Z' => '011010000',
         '-' => '010000101',
         '.' => '110000100',
         ' ' => '011000100',
         '$' => '010101000',
         '/' => '010100010',
         '+' => '010001010',
         '%' => '000101010',
         '*' => '010010100',
     );
 
     /**
      * Partial check of Code39 barcode
      * @return void
      */
     protected function _checkParams()
     {
         $this->_checkRatio();
     }
 
     /**
      * Width of the barcode (in pixels)
      * @return int
      */
     protected function _calculateBarcodeWidth()
     {
         $quietZone       = $this->getQuietZone();
         $characterLength = (6 * $this->_barThinWidth + 3 * $this->_barThickWidth + 1) * $this->_factor;
         $encodedData     = strlen($this->getText()) * $characterLength - $this->_factor;
         return $quietZone + $encodedData + $quietZone;
     }
 
     /**
      * Set text to encode
      * @param string $value
      * @return Zend_Barcode_Object
      */
     public function setText($value)
     {
         $this->_text = $value;
         return $this;
     }
 
     /**
      * Retrieve text to display
      * @return string
      */
     public function getText()
     {
         return '*' . parent::getText() . '*';
     }
 
     /**
      * Retrieve text to display
      * @return string
      */
     public function getTextToDisplay()
     {
         $text = parent::getTextToDisplay();
         if (substr($text, 0, 1) != '*' && substr($text, -1) != '*') {
             return '*' . $text . '*';
         } else {
             return $text;
         }
     }
 
     /**
      * Prepare array to draw barcode
      * @return array
      */
     protected function _prepareBarcode()
     {
         $text         = str_split($this->getText());
         $barcodeTable = array();
         foreach ($text as $char) {
             $barcodeChar = str_split($this->_codingMap[$char]);
             $visible     = true;
             foreach ($barcodeChar as $c) {
                 /* visible, width, top, length */
                 $width          = $c ? $this->_barThickWidth : $this->_barThinWidth;
                 $barcodeTable[] = array((int) $visible, $width, 0, 1);
                 $visible = ! $visible;
             }
             $barcodeTable[] = array(0 , $this->_barThinWidth);
         }
         return $barcodeTable;
     }
 
     /**
      * Get barcode checksum
      *
      * @param  string $text
      * @return int
      */
     public function getChecksum($text)
     {
         $this->_checkText($text);
         $text     = str_split($text);
         $charset  = array_flip(array_keys($this->_codingMap));
         $checksum = 0;
         foreach ($text as $character) {
             $checksum += $charset[$character];
         }
         return array_search(($checksum % 43), $charset);
     }
 }