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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: Postnet.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 Postnet 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_Postnet extends Zend_Barcode_Object_ObjectAbstract
{
/**
* Coding map
* - 0 = half bar
* - 1 = complete bar
* @var array
*/
protected $_codingMap = array(
0 => "11000",
1 => "00011",
2 => "00101",
3 => "00110",
4 => "01001",
5 => "01010",
6 => "01100",
7 => "10001",
8 => "10010",
9 => "10100"
);
/**
* Default options for Postnet barcode
* @return void
*/
protected function _getDefaultOptions()
{
$this->_barThinWidth = 2;
$this->_barHeight = 20;
$this->_drawText = false;
$this->_stretchText = true;
$this->_mandatoryChecksum = true;
}
/**
* Width of the barcode (in pixels)
* @return integer
*/
protected function _calculateBarcodeWidth()
{
$quietZone = $this->getQuietZone();
$startCharacter = (2 * $this->_barThinWidth) * $this->_factor;
$stopCharacter = (1 * $this->_barThinWidth) * $this->_factor;
$encodedData = (10 * $this->_barThinWidth) * $this->_factor * strlen($this->getText());
return $quietZone + $startCharacter + $encodedData + $stopCharacter + $quietZone;
}
/**
* Partial check of interleaved Postnet barcode
* @return void
*/
protected function _checkParams()
{}
/**
* Prepare array to draw barcode
* @return array
*/
protected function _prepareBarcode()
{
$barcodeTable = array();
// Start character (1)
$barcodeTable[] = array(1 , $this->_barThinWidth , 0 , 1);
$barcodeTable[] = array(0 , $this->_barThinWidth , 0 , 1);
// Text to encode
$textTable = str_split($this->getText());
foreach ($textTable as $char) {
$bars = str_split($this->_codingMap[$char]);
foreach ($bars as $b) {
$barcodeTable[] = array(1 , $this->_barThinWidth , 0.5 - $b * 0.5 , 1);
$barcodeTable[] = array(0 , $this->_barThinWidth , 0 , 1);
}
}
// Stop character (1)
$barcodeTable[] = array(1 , $this->_barThinWidth , 0 , 1);
return $barcodeTable;
}
/**
* Get barcode checksum
*
* @param string $text
* @return int
*/
public function getChecksum($text)
{
$this->_checkText($text);
$sum = array_sum(str_split($text));
$checksum = (10 - ($sum % 10)) % 10;
return $checksum;
}
}
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