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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: Ean5.php 20096 2010-01-06 02:05:09Z bkarwin $
*/
/**
* @see Zend_Barcode_Object_Ean13
*/
require_once 'Zend/Barcode/Object/Ean13.php';
/**
* @see Zend_Validate_Barcode
*/
require_once 'Zend/Validate/Barcode.php';
/**
* Class for generate Ean5 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_Ean5 extends Zend_Barcode_Object_Ean13
{
protected $_parities = array(
0 => array('B','B','A','A','A'),
1 => array('B','A','B','A','A'),
2 => array('B','A','A','B','A'),
3 => array('B','A','A','A','B'),
4 => array('A','B','B','A','A'),
5 => array('A','A','B','B','A'),
6 => array('A','A','A','B','B'),
7 => array('A','B','A','B','A'),
8 => array('A','B','A','A','B'),
9 => array('A','A','B','A','B')
);
/**
* Default options for Ean5 barcode
* @return void
*/
protected function _getDefaultOptions()
{
$this->_barcodeLength = 5;
}
/**
* Width of the barcode (in pixels)
* @return integer
*/
protected function _calculateBarcodeWidth()
{
$quietZone = $this->getQuietZone();
$startCharacter = (5 * $this->_barThinWidth) * $this->_factor;
$middleCharacter = (2 * $this->_barThinWidth) * $this->_factor;
$encodedData = (7 * $this->_barThinWidth) * $this->_factor;
return $quietZone + $startCharacter + ($this->_barcodeLength - 1) * $middleCharacter + $this->_barcodeLength * $encodedData + $quietZone;
}
/**
* Prepare array to draw barcode
* @return array
*/
protected function _prepareBarcode()
{
$barcodeTable = array();
// Start character (01011)
$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->_barThinWidth , 0 , 1);
$barcodeTable[] = array(1 , $this->_barThinWidth , 0 , 1);
$firstCharacter = true;
$textTable = str_split($this->getText());
// Characters
for ($i = 0; $i < $this->_barcodeLength; $i++) {
if ($firstCharacter) {
$firstCharacter = false;
} else {
// Intermediate character (01)
$barcodeTable[] = array(0 , $this->_barThinWidth , 0 , 1);
$barcodeTable[] = array(1 , $this->_barThinWidth , 0 , 1);
}
$bars = str_split($this->_codingMap[$this->_getParity($i)][$textTable[$i]]);
foreach ($bars as $b) {
$barcodeTable[] = array($b , $this->_barThinWidth , 0 , 1);
}
}
return $barcodeTable;
}
/**
* Get barcode checksum
*
* @param string $text
* @return int
*/
public function getChecksum($text)
{
$this->_checkText($text);
$checksum = 0;
for ($i = 0 ; $i < $this->_barcodeLength; $i ++) {
$checksum += intval($text{$i}) * ($i % 2 ? 9 : 3);
}
return ($checksum % 10);
}
protected function _getParity($i)
{
$checksum = $this->getChecksum($this->getText());
return $this->_parities[$checksum][$i];
}
/**
* Retrieve text to encode
* @return string
*/
public function getText()
{
return $this->_addLeadingZeros($this->_text);
}
}
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