142 lines
4.2 KiB
PHP
142 lines
4.2 KiB
PHP
<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend_Barcode
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* @subpackage Object
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* @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id$
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*/
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/**
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* @see Zend_Barcode_Object_ObjectAbstract
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*/
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/**
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* @see Zend_Validate_Barcode
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*/
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/**
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* Class for generate Interleaved 2 of 5 barcode
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*
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* @category Zend
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* @package Zend_Barcode
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* @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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class Zend_Barcode_Object_Code25 extends Zend_Barcode_Object_ObjectAbstract
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{
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/**
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* Coding map
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* - 0 = narrow bar
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* - 1 = wide bar
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* @var array
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*/
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protected $_codingMap = array(
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'0' => '00110',
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'1' => '10001',
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'2' => '01001',
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'3' => '11000',
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'4' => '00101',
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'5' => '10100',
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'6' => '01100',
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'7' => '00011',
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'8' => '10010',
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'9' => '01010',
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);
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/**
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* Width of the barcode (in pixels)
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* @return integer
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*/
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protected function _calculateBarcodeWidth()
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{
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$quietZone = $this->getQuietZone();
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$startCharacter = (2 * $this->_barThickWidth + 4 * $this->_barThinWidth) * $this->_factor;
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$characterLength = (3 * $this->_barThinWidth + 2 * $this->_barThickWidth + 5 * $this->_barThinWidth)
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* $this->_factor;
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$encodedData = strlen($this->getText()) * $characterLength;
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$stopCharacter = (2 * $this->_barThickWidth + 4 * $this->_barThinWidth) * $this->_factor;
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return $quietZone + $startCharacter + $encodedData + $stopCharacter + $quietZone;
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}
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/**
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* Partial check of interleaved 2 of 5 barcode
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* @return void
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*/
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protected function _checkParams()
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{
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$this->_checkRatio();
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}
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/**
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* Prepare array to draw barcode
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* @return array
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*/
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protected function _prepareBarcode()
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{
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$barcodeTable = array();
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// Start character (30301)
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$barcodeTable[] = array(1 , $this->_barThickWidth , 0 , 1);
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$barcodeTable[] = array(0 , $this->_barThinWidth , 0 , 1);
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$barcodeTable[] = array(1 , $this->_barThickWidth , 0 , 1);
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$barcodeTable[] = array(0 , $this->_barThinWidth , 0 , 1);
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$barcodeTable[] = array(1 , $this->_barThinWidth , 0 , 1);
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$barcodeTable[] = array(0 , $this->_barThinWidth);
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$text = str_split($this->getText());
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foreach ($text as $char) {
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$barcodeChar = str_split($this->_codingMap[$char]);
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foreach ($barcodeChar as $c) {
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/* visible, width, top, length */
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$width = $c ? $this->_barThickWidth : $this->_barThinWidth;
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$barcodeTable[] = array(1 , $width , 0 , 1);
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$barcodeTable[] = array(0 , $this->_barThinWidth);
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}
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}
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// Stop character (30103)
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$barcodeTable[] = array(1 , $this->_barThickWidth , 0 , 1);
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$barcodeTable[] = array(0 , $this->_barThinWidth , 0 , 1);
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$barcodeTable[] = array(1 , $this->_barThinWidth , 0 , 1);
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$barcodeTable[] = array(0 , $this->_barThinWidth , 0 , 1);
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$barcodeTable[] = array(1 , $this->_barThickWidth , 0 , 1);
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return $barcodeTable;
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}
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/**
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* Get barcode checksum
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*
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* @param string $text
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* @return int
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*/
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public function getChecksum($text)
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{
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$this->_checkText($text);
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$factor = 3;
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$checksum = 0;
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for ($i = strlen($text); $i > 0; $i --) {
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$checksum += intval($text{$i - 1}) * $factor;
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$factor = 4 - $factor;
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}
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$checksum = (10 - ($checksum % 10)) % 10;
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return $checksum;
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}
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}
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