<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zf2 for the canonical source repository
* @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
namespace Zend\Barcode\Object;
/**
* Class for generate Ean13 barcode
*/
class Ean13 extends AbstractObject
{
/**
* Coding map
* - 0 = narrow bar
* - 1 = wide bar
* @var array
*/
protected $codingMap = array(
'A' => array(
0 => "0001101", 1 => "0011001", 2 => "0010011", 3 => "0111101", 4 => "0100011",
5 => "0110001", 6 => "0101111", 7 => "0111011", 8 => "0110111", 9 => "0001011"
),
'B' => array(
0 => "0100111", 1 => "0110011", 2 => "0011011", 3 => "0100001", 4 => "0011101",
5 => "0111001", 6 => "0000101", 7 => "0010001", 8 => "0001001", 9 => "0010111"
),
'C' => array(
0 => "1110010", 1 => "1100110", 2 => "1101100", 3 => "1000010", 4 => "1011100",
5 => "1001110", 6 => "1010000", 7 => "1000100", 8 => "1001000", 9 => "1110100"
));
protected $parities = array(
0 => array('A','A','A','A','A','A'),
1 => array('A','A','B','A','B','B'),
2 => array('A','A','B','B','A','B'),
3 => array('A','A','B','B','B','A'),
4 => array('A','B','A','A','B','B'),
5 => array('A','B','B','A','A','B'),
6 => array('A','B','B','B','A','A'),
7 => array('A','B','A','B','A','B'),
8 => array('A','B','A','B','B','A'),
9 => array('A','B','B','A','B','A')
);
/**
* Default options for Postnet barcode
* @return void
*/
protected function getDefaultOptions()
{
$this->barcodeLength = 13;
$this->mandatoryChecksum = true;
$this->mandatoryQuietZones = true;
}
/**
* Width of the barcode (in pixels)
* @return int
*/
protected function calculateBarcodeWidth()
{
$quietZone = $this->getQuietZone();
$startCharacter = (3 * $this->barThinWidth) * $this->factor;
$middleCharacter = (5 * $this->barThinWidth) * $this->factor;
$stopCharacter = (3 * $this->barThinWidth) * $this->factor;
$encodedData = (7 * $this->barThinWidth) * $this->factor * 12;
return $quietZone + $startCharacter + $middleCharacter + $encodedData + $stopCharacter + $quietZone;
}
/**
* Partial check of interleaved EAN/UPC barcode
* @return void
*/
protected function checkSpecificParams()
{}
/**
* Prepare array to draw barcode
* @return array
*/
protected function prepareBarcode()
{
$barcodeTable = array();
$height = ($this->drawText) ? 1.1 : 1;
// Start character (101)
$barcodeTable[] = array(1, $this->barThinWidth, 0, $height);
$barcodeTable[] = array(0, $this->barThinWidth, 0, $height);
$barcodeTable[] = array(1, $this->barThinWidth, 0, $height);
$textTable = str_split($this->getText());
$parity = $this->parities[$textTable[0]];
// First part
for ($i = 1; $i < 7; $i++) {
$bars = str_split($this->codingMap[$parity[$i - 1]][$textTable[$i]]);
foreach ($bars as $b) {
$barcodeTable[] = array($b, $this->barThinWidth, 0, 1);
}
}
// Middle character (01010)
$barcodeTable[] = array(0, $this->barThinWidth, 0, $height);
$barcodeTable[] = array(1, $this->barThinWidth, 0, $height);
$barcodeTable[] = array(0, $this->barThinWidth, 0, $height);
$barcodeTable[] = array(1, $this->barThinWidth, 0, $height);
$barcodeTable[] = array(0, $this->barThinWidth, 0, $height);
// Second part
for ($i = 7; $i < 13; $i++) {
$bars = str_split($this->codingMap['C'][$textTable[$i]]);
foreach ($bars as $b) {
$barcodeTable[] = array($b, $this->barThinWidth, 0, 1);
}
}
// Stop character (101)
$barcodeTable[] = array(1, $this->barThinWidth, 0, $height);
$barcodeTable[] = array(0, $this->barThinWidth, 0, $height);
$barcodeTable[] = array(1, $this->barThinWidth, 0, $height);
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 $checksum;
}
/**
* Partial function to draw text
* @return void
*/
protected function drawText()
{
if (get_class($this) == 'Zend\Barcode\Object\Ean13') {
$this->drawEan13Text();
} else {
parent::drawText();
}
}
protected function drawEan13Text()
{
if ($this->drawText) {
$text = $this->getTextToDisplay();
$characterWidth = (7 * $this->barThinWidth) * $this->factor;
$leftPosition = $this->getQuietZone() - $characterWidth;
for ($i = 0; $i < $this->barcodeLength; $i ++) {
$this->addText(
$text{$i},
$this->fontSize * $this->factor,
$this->rotate(
$leftPosition,
(int) $this->withBorder * 2
+ $this->factor * ($this->barHeight + $this->fontSize) + 1
),
$this->font,
$this->foreColor,
'left',
- $this->orientation
);
switch ($i) {
case 0:
$factor = 3;
break;
case 6:
$factor = 4;
break;
default:
$factor = 0;
}
$leftPosition = $leftPosition + $characterWidth + ($factor * $this->barThinWidth * $this->factor);
}
}
}
}