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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: Code25interleaved.php 20096 2010-01-06 02:05:09Z bkarwin $
*/
/** @see Zend_Barcode_Object_Code25 */
require_once 'Zend/Barcode/Object/Code25.php';
/** @see Zend_Validate_Barcode */
require_once 'Zend/Validate/Barcode.php';
/**
* Class for generate Interleaved 2 of 5 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_Code25interleaved extends Zend_Barcode_Object_Code25
{
/**
* Drawing of bearer bars
* @var boolean
*/
private $_withBearerBars = false;
/**
* Default options for Code25interleaved barcode
* @return void
*/
protected function _getDefaultOptions()
{
$this->_barcodeLength = 'even';
}
/**
* Activate/deactivate drawing of bearer bars
* @param boolean $value
* @return Zend_Barcode_Object_Int25
*/
public function setWithBearerBars($value)
{
$this->_withBearerBars = (bool) $value;
return $this;
}
/**
* Retrieve if bearer bars are enabled
* @return boolean
*/
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; $i < strlen($text); $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,
));
}
}
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