<?php
declare(strict_types=1);
namespace BarcodeBakery\Barcode;
use BarcodeBakery\Common\BCGBarcode;
use BarcodeBakery\Common\BCGBarcode1D;
use BarcodeBakery\Common\BCGParseException;
class BCGpostnet extends BCGBarcode1D
{
public function __construct()
{
parent::__construct();
$this->keys = array('0', '1', '2', '3', '4', '5', '6', '7', '8', '9');
$this->code = array(
'11000',
'00011',
'00101',
'00110',
'01001',
'01010',
'01100',
'10001',
'10010',
'10100'
);
$this->setThickness(9);
}
public function draw($im)
{
$checksum = 0;
$c = strlen($this->text);
for ($i = 0; $i < $c; $i++) {
$checksum += intval($this->text[$i]);
}
$checksum = 10 - ($checksum % 10);
$this->drawChar($im, '1');
for ($i = 0; $i < $c; $i++) {
$this->drawChar($im, $this->findCode($this->text[$i]));
}
$this->drawChar($im, $this->findCode($checksum));
$this->drawChar($im, '1');
$this->drawText($im, 0, 0, $this->positionX, $this->thickness);
}
public function getDimension($w, $h)
{
$c = strlen($this->text);
$startlength = 3;
$textlength = $c * 5 * 3;
$checksumlength = 5 * 3;
$endlength = 3;
$removelength = -1.56;
$w += $startlength + $textlength + $checksumlength + $endlength + $removelength;
$h += $this->thickness;
return parent::getDimension($w, $h);
}
protected function validate()
{
$c = strlen($this->text);
if ($c === 0) {
throw new BCGParseException('postnet', 'No data has been entered.');
}
for ($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.');
}
}
if ($c !== 5 && $c !== 9 && $c !== 11) {
throw new BCGParseException('postnet', 'Must contain 5, 9, or 11 characters.');
}
parent::validate();
}
protected function drawChar($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, intval($this->positionX), intval($posY), intval($this->positionX + 0.44), $this->thickness - 1, BCGBarcode::COLOR_FG);
$this->positionX += 3;
}
}
}