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<?php declare(strict_types=1); |
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namespace Sprain\SwissQrBill\QrCode; |
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use Endroid\QrCode\Encoding\Encoding; |
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use Endroid\QrCode\ErrorCorrectionLevel\ErrorCorrectionLevelMedium; |
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use Endroid\QrCode\Logo\Logo; |
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use Endroid\QrCode\RoundBlockSizeMode\RoundBlockSizeModeEnlarge; |
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use Endroid\QrCode\QrCode as BaseQrCode; |
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use Endroid\QrCode\Writer\PngWriter; |
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use Endroid\QrCode\Writer\Result\ResultInterface; |
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use Endroid\QrCode\Writer\SvgWriter; |
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use Endroid\QrCode\Writer\WriterInterface; |
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use Sprain\SwissQrBill\QrCode\Exception\UnsupportedFileExtensionException; |
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final class QrCode |
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{ |
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public const FILE_FORMAT_PNG = 'png'; |
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public const FILE_FORMAT_SVG = 'svg'; |
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private const SUPPORTED_FILE_FORMATS = [ |
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self::FILE_FORMAT_PNG, |
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self::FILE_FORMAT_SVG |
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]; |
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private const SWISS_CROSS_LOGO_FILE = __DIR__ . '/../../assets/swiss-cross.optimized.png'; |
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private const PX_QR_CODE = 543; // recommended 46x46 mm in px @ 300dpi – in pixel based outputs the final image size may be slightly different, depending on the qr code contents |
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private const PX_SWISS_CROSS = 83; // recommended 7x7 mm in px @ 300dpi |
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private BaseQrCode $qrCode; |
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private Logo $qrCodeLogo; |
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private WriterInterface $qrCodeWriter; |
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public static function create(string $data, string $fileFormat = null): self |
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{ |
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if (null === $fileFormat) { |
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$fileFormat = self::FILE_FORMAT_SVG; |
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} |
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return new self($data, $fileFormat); |
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} |
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private function __construct(string $data, string $fileFormat) |
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{ |
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$this->qrCode = BaseQrCode::create($data) |
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->setEncoding(new Encoding('UTF-8')) |
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->setErrorCorrectionLevel(new ErrorCorrectionLevelMedium()) |
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->setSize(self::PX_QR_CODE) |
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->setMargin(0) |
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->setRoundBlockSizeMode(new RoundBlockSizeModeEnlarge()); |
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$this->qrCodeLogo = Logo::create(self::SWISS_CROSS_LOGO_FILE) |
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->setResizeToWidth(self::PX_SWISS_CROSS); |
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$this->setWriterByExtension($fileFormat); |
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} |
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public function writeFile(string $path): void |
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{ |
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$extension = strtolower(pathinfo($path, PATHINFO_EXTENSION)); |
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$this->setWriterByExtension($extension); |
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$this->getQrCodeResult()->saveToFile($path); |
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} |
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public function writeDataUri(): string |
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{ |
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return $this->getQrCodeResult()->getDataUri(); |
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} |
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public function getText(): string |
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{ |
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return $this->qrCode->getData(); |
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} |
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private function setWriterByExtension(string $extension): void |
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{ |
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if (!in_array($extension, self::SUPPORTED_FILE_FORMATS)) { |
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throw new UnsupportedFileExtensionException(sprintf( |
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'The qr code file cannot be created. Only these file formats are supported: %s. You provided: %s.', |
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implode(', ', self::SUPPORTED_FILE_FORMATS), |
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$extension |
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)); |
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} |
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$this->qrCodeWriter = match ($extension) { |
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self::FILE_FORMAT_SVG => new SvgWriter(), |
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default => new PngWriter(), |
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}; |
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} |
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private function getQrCodeResult(): ResultInterface |
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{ |
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return $this->qrCodeWriter->write( |
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$this->qrCode, |
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$this->qrCodeLogo, |
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null, |
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[SvgWriter::WRITER_OPTION_FORCE_XLINK_HREF => true] |
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); |
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} |
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} |
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sprain /
php-swiss-qr-bill
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