BCGpostnet.barcode.php
3.8 KB
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
<?php
/**
*--------------------------------------------------------------------
*
* Sub-Class - PostNet
*
* A postnet is composed of either 5, 9 or 11 digits used by US postal service.
*
*--------------------------------------------------------------------
* Copyright (C) Jean-Sebastien Goupil
* http://www.barcodephp.com
*/
include_once('BCGParseException.php');
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 */
);
$this->setThickness(9);
}
/**
* Draws the barcode.
*
* @param resource $im
*/
public function draw($im) {
// Checksum
$checksum = 0;
$c = strlen($this->text);
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, 0, 0, $this->positionX, $this->thickness);
}
/**
* Returns the maximal size of a barcode.
*
* @param int $w
* @param int $h
* @return int[]
*/
public function getDimension($w, $h) {
$c = strlen($this->text);
$startlength = 3;
$textlength = $c * 5 * 3;
$checksumlength = 5 * 3;
$endlength = 3;
// We remove the white on the right
$removelength = -1.56;
$w += $startlength + $textlength + $checksumlength + $endlength + $removelength;
$h += $this->thickness;
return parent::getDimension($w, $h);
}
/**
* Validates the input.
*/
protected function validate() {
$c = strlen($this->text);
if ($c === 0) {
throw new BCGParseException('postnet', 'No data has been entered.');
}
// Checking if all chars are allowed
for ($i = 0; $i < $c; $i++) {
if (array_search($this->text[$i], $this->keys) === false) {
throw new BCGParseException('postnet', 'The character \'' . $this->text[$i] . '\' is not allowed.');
}
}
// Must contain 5, 9 or 11 chars
if ($c !== 5 && $c !== 9 && $c !== 11) {
throw new BCGParseException('postnet', 'Must contain 5, 9, or 11 characters.');
}
parent::validate();
}
/**
* Overloaded method for drawing special barcode.
*
* @param resource $im
* @param string $code
* @param boolean $startBar
*/
protected function drawChar($im, $code, $startBar = true) {
$c = strlen($code);
for ($i = 0; $i < $c; $i++) {
if ($code[$i] === '0') {
$posY = $this->thickness - ($this->thickness / 2.5);
} else {
$posY = 0;
}
$this->drawFilledRectangle($im, $this->positionX, $posY, $this->positionX + 0.44, $this->thickness - 1, BCGBarcode::COLOR_FG);
$this->positionX += 3;
}
}
}
?>