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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) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Code25.php 20096 2010-01-06 02:05:09Z bkarwin $
*/
/**
* @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 Interleaved 2 of 5 barcode
*
* @category Zend
* @package Zend_Barcode
* @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Barcode_Object_Code25 extends Zend_Barcode_Object_ObjectAbstract
{
/**
* Coding map
* - 0 = narrow bar
* - 1 = wide bar
* @var array
*/
protected $_codingMap = array(
'0' => '00110',
'1' => '10001',
'2' => '01001',
'3' => '11000',
'4' => '00101',
'5' => '10100',
'6' => '01100',
'7' => '00011',
'8' => '10010',
'9' => '01010',
);
/**
* Width of the barcode (in pixels)
* @return integer
*/
protected function _calculateBarcodeWidth()
{
$quietZone = $this->getQuietZone();
$startCharacter = (2 * $this->_barThickWidth + 4 * $this->_barThinWidth) * $this->_factor;
$characterLength = (3 * $this->_barThinWidth + 2 * $this->_barThickWidth + 5 * $this->_barThinWidth)
* $this->_factor;
$encodedData = strlen($this->getText()) * $characterLength;
$stopCharacter = (2 * $this->_barThickWidth + 4 * $this->_barThinWidth) * $this->_factor;
return $quietZone + $startCharacter + $encodedData + $stopCharacter + $quietZone;
}
/**
* Partial check of interleaved 2 of 5 barcode
* @return void
*/
protected function _checkParams()
{
$this->_checkRatio();
}
/**
* Prepare array to draw barcode
* @return array
*/
protected function _prepareBarcode()
{
$barcodeTable = array();
// Start character (30301)
$barcodeTable[] = array(1 , $this->_barThickWidth , 0 , 1);
$barcodeTable[] = array(0 , $this->_barThinWidth , 0 , 1);
$barcodeTable[] = array(1 , $this->_barThickWidth , 0 , 1);
$barcodeTable[] = array(0 , $this->_barThinWidth , 0 , 1);
$barcodeTable[] = array(1 , $this->_barThinWidth , 0 , 1);
$barcodeTable[] = array(0 , 1);
$text = str_split($this->getText());
foreach ($text as $char) {
$barcodeChar = str_split($this->_codingMap[$char]);
foreach ($barcodeChar as $c) {
/* visible, width, top, length */
$width = $c ? $this->_barThickWidth : $this->_barThinWidth;
$barcodeTable[] = array(1 , $width , 0 , 1);
$barcodeTable[] = array(0 , 1);
}
}
// Stop character (30103)
$barcodeTable[] = array(1 , $this->_barThickWidth , 0 , 1);
$barcodeTable[] = array(0 , $this->_barThinWidth , 0 , 1);
$barcodeTable[] = array(1 , $this->_barThinWidth , 0 , 1);
$barcodeTable[] = array(0 , $this->_barThinWidth , 0 , 1);
$barcodeTable[] = array(1 , $this->_barThickWidth , 0 , 1);
return $barcodeTable;
}
/**
* Get barcode checksum
*
* @param string $text
* @return int
*/
public function getChecksum($text)
{
$this->_checkText($text);
$factor = 3;
$checksum = 0;
for ($i = strlen($text); $i > 0; $i --) {
$checksum += intval($text{$i - 1}) * $factor;
$factor = 4 - $factor;
}
$checksum = (10 - ($checksum % 10)) % 10;
return $checksum;
}
}
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