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Code25interleaved.php
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Code25interleaved.php
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<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zf2 for the canonical source repository
* @copyright Copyright (c) 2005-2013 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @package Zend_Barcode
*/
namespace Zend\Barcode\Object;
/**
* Class for generate Interleaved 2 of 5 barcode
*
* @category Zend
* @package Zend_Barcode
*/
class Code25interleaved extends Code25
{
/**
* Drawing of bearer bars
* @var bool
*/
private $withBearerBars = false;
/**
* Default options for Code25interleaved barcode
* @return void
*/
protected function getDefaultOptions()
{
$this->barcodeLength = 'even';
}
/**
* Activate/deactivate drawing of bearer bars
* @param bool $value
* @return Code25
*/
public function setWithBearerBars($value)
{
$this->withBearerBars = (bool) $value;
return $this;
}
/**
* Retrieve if bearer bars are enabled
* @return bool
*/
public function getWithBearerBars()
{
return $this->withBearerBars;
}
/**
* Width of the barcode (in pixels)
* @return integer
*/
protected function calculateBarcodeWidth()
{
$quietZone = $this->getQuietZone();
$startCharacter = (4 * $this->barThinWidth) * $this->factor;
$characterLength = (3 * $this->barThinWidth + 2 * $this->barThickWidth) * $this->factor;
$encodedData = strlen($this->getText()) * $characterLength;
$stopCharacter = ($this->barThickWidth + 2 * $this->barThinWidth) * $this->factor;
return $quietZone + $startCharacter + $encodedData + $stopCharacter + $quietZone;
}
/**
* Prepare array to draw barcode
* @return array
*/
protected function prepareBarcode()
{
if ($this->withBearerBars) {
$this->withBorder = false;
}
// Start character (0000)
$barcodeTable[] = array(1, $this->barThinWidth, 0, 1);
$barcodeTable[] = array(0, $this->barThinWidth, 0, 1);
$barcodeTable[] = array(1, $this->barThinWidth, 0, 1);
$barcodeTable[] = array(0, $this->barThinWidth, 0, 1);
// Encoded $text
$text = $this->getText();
for ($i = 0, $len = strlen($text); $i < $len; $i += 2) { // Draw 2 chars at a time
$char1 = substr($text, $i, 1);
$char2 = substr($text, $i + 1, 1);
// Interleave
for ($ibar = 0; $ibar < 5; $ibar ++) {
// Draws char1 bar (fore color)
$barWidth = (substr($this->codingMap[$char1], $ibar, 1))
? $this->barThickWidth
: $this->barThinWidth;
$barcodeTable[] = array(1, $barWidth, 0, 1);
// Left space corresponding to char2 (background color)
$barWidth = (substr($this->codingMap[$char2], $ibar, 1))
? $this->barThickWidth
: $this->barThinWidth;
$barcodeTable[] = array(0, $barWidth, 0 , 1);
}
}
// Stop character (100)
$barcodeTable[] = array(1 , $this->barThickWidth, 0, 1);
$barcodeTable[] = array(0 , $this->barThinWidth, 0, 1);
$barcodeTable[] = array(1 , $this->barThinWidth, 0, 1);
return $barcodeTable;
}
/**
* Drawing of bearer bars (if enabled)
*
* @return void
*/
protected function postDrawBarcode()
{
if (!$this->withBearerBars) {
return;
}
$width = $this->barThickWidth * $this->factor;
$point1 = $this->rotate(-1, -1);
$point2 = $this->rotate($this->calculateWidth() - 1, -1);
$point3 = $this->rotate($this->calculateWidth() - 1, $width - 1);
$point4 = $this->rotate(-1, $width - 1);
$this->addPolygon(array(
$point1,
$point2,
$point3,
$point4,
));
$point1 = $this->rotate(
0,
0 + $this->barHeight * $this->factor - 1
);
$point2 = $this->rotate(
$this->calculateWidth() - 1,
0 + $this->barHeight * $this->factor - 1
);
$point3 = $this->rotate(
$this->calculateWidth() - 1,
0 + $this->barHeight * $this->factor - $width
);
$point4 = $this->rotate(
0,
0 + $this->barHeight * $this->factor - $width
);
$this->addPolygon(array(
$point1,
$point2,
$point3,
$point4,
));
}
}