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<?php
/**
* BCGpostnet.barcode.php
*--------------------------------------------------------------------
*
* Sub-Class - PostNet
*
* ################ NOT TESTED ################
*
*--------------------------------------------------------------------
* Revision History
* v2.0.1 8 mar 2009 Jean-Sébastien Goupil Fix padding for the barcode
* v2.0.0 23 apr 2008 Jean-Sébastien Goupil New Version Update
* v1.2.3b 31 dec 2005 Jean-Sébastien Goupil PHP5.1 compatible
* v1.2.1 27 jun 2005 Jean-Sébastien Goupil Font support added + Redesign output
* V1.00 17 jun 2004 Jean-Sebastien Goupil
*--------------------------------------------------------------------
* $Id: BCGpostnet.barcode.php,v 1.13 2009/03/23 06:48:30 jsgoupil Exp $
*--------------------------------------------------------------------
* Copyright (C) Jean-Sebastien Goupil
* http://www.barcodephp.com
*/
include_once('BCGBarcode1D.php');
class BCGpostnet extends BCGBarcode1D {
/**
* Constructor
*/
public function __construct() {
parent::__construct();
$this->keys = array('0','1','2','3','4','5','6','7','8','9');
$this->code = array(
'11000', /* 0 */
'00011', /* 1 */
'00101', /* 2 */
'00110', /* 3 */
'01001', /* 4 */
'01010', /* 5 */
'01100', /* 6 */
'10001', /* 7 */
'10010', /* 8 */
'10100' /* 9 */
);
}
/**
* Draws the barcode
*
* @param resource $im
*/
public function draw(&$im) {
$error_stop = false;
// Checking if all chars are allowed
$c = strlen($this->text);
for($i = 0; $i < $c; $i++) {
if(array_search($this->text[$i], $this->keys) === false) {
$this->drawError($im, 'Char \'' . $this->text[$i] . '\' not allowed.');
$error_stop = true;
}
}
if($error_stop === false) {
// Must contain 5, 9 or 11 chars
if($c !== 5 && $c !== 9 && $c !== 11) {
$this->drawError($im, 'Must contain 5, 9 or 11 chars.');
$error_stop = true;
}
if($error_stop === false) {
// Checksum
$checksum = 0;
for($i = 0; $i < $c; $i++) {
$checksum += intval($this->text[$i]);
}
$checksum = 10 - ($checksum % 10);
// Starting Code
$this->drawChar($im, '1');
// Code
for($i = 0; $i < $c; $i++) {
$this->drawChar($im, $this->findCode($this->text[$i]));
}
// Checksum
$this->drawChar($im, $this->findCode($checksum));
//Ending Code
$this->drawChar($im, '1');
$this->drawText($im);
}
}
}
/**
* Returns the maximal size of a barcode
*
* @return int
*/
public function getMaxSize() {
$p = parent::getMaxSize();
$c = strlen($this->text);
$startlength = 6 * $this->scale;
$textlength = $c * 5 * 6 * $this->scale;
$checksumlength = 5 * 6 * $this->scale;
$endlength = 6 * $this->scale;
// We remove the white on the right
$removelength = - 3 * $this->scale;
return array($p[0] + $startlength + $textlength + $checksumlength + $endlength + $removelength, $p[1]);
}
/**
* Overloaded method for drawing special barcode
*
* @param resource $im
* @param string $code
* @param boolean $last
*/
protected function drawChar(&$im, $code, $last = false) {
$c = strlen($code);
for($i = 0; $i < $c; $i++) {
if($code[$i] === '0') {
$posY = $this->thickness / 2;
} else {
$posY = 0;
}
$this->drawFilledRectangle($im, $this->positionX, $posY, $this->positionX + 2, $this->thickness, BCGBarcode::COLOR_FG);
$this->positionX += 2 * 3;
}
}
};
?>
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