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<?php |
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namespace Sprain\SwissQrBill\QrCode; |
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use Endroid\QrCode\QrCode as BaseQrCode; |
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use Endroid\QrCode\QrCodeInterface; |
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use Sprain\SwissQrBill\QrCode\Exception\UnsupportedFileExtensionException; |
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class QrCode extends BaseQrCode implements QrCodeInterface |
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{ |
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const FILE_FORMAT_PNG = 'png'; |
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const FILE_FORMAT_SVG = 'svg'; |
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// A file extension is supported if the underlying library supports it, |
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// including the possibility to add a logo in the center of the qr code. |
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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_PNG = __DIR__ . '/../../assets/swiss-cross.png'; |
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private const SWISS_CROSS_LOGO_FILE_SVG = __DIR__ . '/../../assets/swiss-cross.svg'; |
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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->addLogoInMatchingFileFormat(); |
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parent::writeFile($path); |
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} |
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public function writeDataUri(): string |
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{ |
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$this->addLogoInMatchingFileFormat(); |
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return parent::writeDataUri(); |
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} |
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public 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 extensions are supported: %s. You provided: %s.', |
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implode(', ', self::SUPPORTED_FILE_FORMATS), |
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$extension |
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)); |
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} |
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parent::setWriterByExtension($extension); |
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} |
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private function addLogoInMatchingFileFormat(): void |
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{ |
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$this->setLogoPath(self::SWISS_CROSS_LOGO_FILE_PNG); |
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if ($this->getWriter()->supportsExtension(self::FILE_FORMAT_SVG)) { |
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$this->setLogoPath(self::SWISS_CROSS_LOGO_FILE_SVG); |
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$this->setWriterOptions([ |
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'force_xlink_href' => true |
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]); |
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} |
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} |
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} |
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sprain /
php-swiss-qr-bill
