<?php
namespace HeroQR\Core\Writers;
use HeroQR\Contracts\Customs\AbstractWriter;
use Endroid\QrCode\{Label\LabelInterface,Logo\LogoInterface, QrCodeInterface};
use Endroid\QrCode\Writer\Result\{GdResult, PngResult, ResultInterface};
/**
* Custom PNG Writer for generating QR codes with optional compression level
* Allows for customized QR code generation with flexible compression settings
*
* @package HeroQR\Core\Writers
*/
readonly class CustomPngWriter extends AbstractWriter
{
public const WRITER_OPTION_COMPRESSION_LEVEL = 'compression_level';
/**
* Generates a PNG result from a QR code, with optional logo and label
*
* @param QrCodeInterface $qrCode QR Code instance to render
* @param LogoInterface|null $logo Optional logo to embed in the QR code
* @param LabelInterface|null $label Optional label to add to the QR code
* @param array $options Writer options (compression level and...)
* @return ResultInterface The resulting PNG QR code
* @throws \Exception
*/
public function write(
QrCodeInterface $qrCode,
?LogoInterface $logo = null,
?LabelInterface $label = null,
array $options = []
): ResultInterface{
$options[self::WRITER_OPTION_COMPRESSION_LEVEL] = $options[self::WRITER_OPTION_COMPRESSION_LEVEL] ?? 1;
/**
* @var GdResult $gdResult
*/
$gdResult = parent::write($qrCode, $logo, $label, $options);
return new PngResult(
$gdResult->getMatrix(),
$gdResult->getImage(),
$options[self::WRITER_OPTION_COMPRESSION_LEVEL]
);
}
}
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