<?php
declare(strict_types=1);
namespace BarcodeBakery\Common\Drawer;
if (!function_exists('file_put_contents')) {
function file_put_contents($filename, $data)
{
$f = @fopen($filename, 'w');
if (!$f) {
return false;
} else {
$bytes = fwrite($f, $data);
fclose($f);
return $bytes;
}
}
}
class BCGDrawJPG extends BCGDraw
{
private $dpi;
private $quality;
public function __construct($im)
{
parent::__construct($im);
}
public function setDPI($dpi)
{
if (is_int($dpi)) {
$this->dpi = max(1, $dpi);
} else {
$this->dpi = null;
}
}
public function setQuality($quality)
{
$this->quality = $quality;
}
public function draw()
{
ob_start();
imagejpeg($this->im, null, $this->quality);
$bin = ob_get_contents();
ob_end_clean();
$this->setInternalProperties($bin);
if (empty($this->filename)) {
echo $bin;
} else {
file_put_contents($this->filename, $bin);
}
}
private function setInternalProperties(&$bin)
{
$this->internalSetDPI($bin);
$this->internalSetC($bin);
}
private function internalSetDPI(&$bin)
{
if ($this->dpi !== null) {
$bin = substr_replace($bin, pack("Cnn", 0x01, $this->dpi, $this->dpi), 13, 5);
}
}
private function internalSetC(&$bin)
{
if (strcmp(substr($bin, 0, 4), pack('H*', 'FFD8FFE0')) === 0) {
$offset = 4 + (ord($bin[4]) << 8 | ord($bin[5]));
$firstPart = substr($bin, 0, $offset);
$secondPart = substr($bin, $offset);
$cr = pack('H*', 'FFFE004447656E657261746564207769746820426172636F64652042616B65727920666F722050485020687474703A2F2F7777772E626172636F646562616B6572792E636F6D');
$bin = $firstPart;
$bin .= $cr;
$bin .= $secondPart;
}
}
}