1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
|
<?php
/**
* BCGmsi.barcode.php
*--------------------------------------------------------------------
*
* Sub-Class - MSI Plessey
*
*--------------------------------------------------------------------
* Revision History
* v2.0.1 8 mar 2009 Jean-Sébastien Goupil Fix checksum 1 or 2
* v2.0.0 23 apr 2008 Jean-Sébastien Goupil New Version Update
* v1.2.3b 31 dec 2005 Jean-Sébastien Goupil Checksum separated + PHP5.1 compatible
* v1.2.2 23 jul 2005 Jean-Sébastien Goupil Enhance rapidity
* v1.2.1 27 jun 2005 Jean-Sébastien Goupil Font support added
* V1.00 17 jun 2004 Jean-Sebastien Goupil
*--------------------------------------------------------------------
* $Id: BCGmsi.barcode.php,v 1.10 2009/03/23 06:48:30 jsgoupil Exp $
*--------------------------------------------------------------------
* Copyright (C) Jean-Sebastien Goupil
* http://www.barcodephp.com
*/
include_once('BCGBarcode1D.php');
class BCGmsi extends BCGBarcode1D {
private $checksum;
/**
* Constructor
*/
public function __construct() {
parent::__construct();
$this->keys = array('0','1','2','3','4','5','6','7','8','9');
$this->code = array(
'01010101', /* 0 */
'01010110', /* 1 */
'01011001', /* 2 */
'01011010', /* 3 */
'01100101', /* 4 */
'01100110', /* 5 */
'01101001', /* 6 */
'01101010', /* 7 */
'10010101', /* 8 */
'10010110' /* 9 */
);
$this->setChecksum(0);
}
public function setChecksum($checksum) {
$checksum = intval($checksum);
if($checksum < 0 && $checksum > 2) {
$checksum = 0;
}
$this->checksum = $checksum;
}
/**
* 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) {
// Checksum
$this->calculateChecksum();
// Starting Code
$this->drawChar($im, '10', true);
// Chars
$c = strlen($this->text);
for($i = 0; $i < $c; $i++) {
$this->drawChar($im, $this->findCode($this->text[$i]), true);
}
$c = count($this->checksumValue);
for($i = 0; $i < $c; $i++) {
$this->drawChar($im, $this->findCode($this->checksumValue[$i]), true);
}
// Ending Code
$this->drawChar($im, '010', true);
$this->drawText($im);
}
}
/**
* Returns the maximal size of a barcode
*
* @return int[]
*/
public function getMaxSize() {
$p = parent::getMaxSize();
$textlength = 12 * strlen($this->text) * $this->scale;
$startlength = 3 * $this->scale;
$checksumlength = $this->checksum * 12 * $this->scale;
$endlength = 4 * $this->scale;
return array($p[0] + $startlength + $textlength + $checksumlength + $endlength, $p[1]);
}
/**
* Overloaded method to calculate checksum
*/
protected function calculateChecksum() {
// Forming a new number
// If the original number is even, we take all even position
// If the original number is odd, we take all odd position
// 123456 = 246
// 12345 = 135
// Multiply by 2
// Add up all the digit in the result (270 : 2+7+0)
// Add up other digit not used.
// 10 - (? Modulo 10). If result = 10, change to 0
$last_text = $this->text;
$this->checksumValue = array();
for($i = 0; $i < $this->checksum; $i++) {
$new_text = '';
$new_number = 0;
$c = strlen($last_text);
if($c % 2 === 0) { // Even
$starting = 1;
} else {
$starting = 0;
}
for($j = $starting; $j < $c; $j += 2) {
$new_text .= $last_text[$j];
}
$new_text = strval(intval($new_text) * 2);
$c2 = strlen($new_text);
for($j = 0; $j < $c2; $j++) {
$new_number += intval($new_text[$j]);
}
for($j = ($starting === 0) ? 1 : 0; $j < $c; $j += 2) {
$new_number += intval($last_text[$j]);
}
$new_number = (10 - $new_number % 10) % 10;
$this->checksumValue[] = $new_number;
$last_text .= $new_number;
}
}
/**
* Overloaded method to display the checksum
*/
protected function processChecksum() {
if($this->checksumValue === false) { // Calculate the checksum only once
$this->calculateChecksum();
}
if($this->checksumValue !== false) {
$ret = '';
$c = count($this->checksumValue);
for($i = 0; $i < $c; $i++) {
$ret .= $this->keys[$this->checksumValue[$i]];
}
return $ret;
}
return false;
}
};
?>
|