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<?php |
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|
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/** |
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* Class QRFpdf |
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* |
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* @created 03.06.2020 |
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* @author Maximilian Kresse |
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* @license MIT |
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* |
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* @see https://github.com/chillerlan/php-qrcode/pull/49 |
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*/ |
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namespace WCPOS\Vendor\chillerlan\QRCode\Output; |
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|
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use WCPOS\Vendor\chillerlan\QRCode\Data\QRMatrix; |
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use WCPOS\Vendor\chillerlan\Settings\SettingsContainerInterface; |
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use WCPOS\Vendor\FPDF; |
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use function array_values, class_exists, count, intval, is_array, is_numeric, max, min; |
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/** |
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* QRFpdf output module (requires fpdf) |
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* |
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* @see https://github.com/Setasign/FPDF |
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* @see http://www.fpdf.org/ |
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*/ |
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class QRFpdf extends QROutputAbstract |
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{ |
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public const MIME_TYPE = 'application/pdf'; |
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protected FPDF $fpdf; |
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protected ?array $prevColor = null; |
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/** |
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* QRFpdf constructor. |
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* |
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* @throws \chillerlan\QRCode\Output\QRCodeOutputException |
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*/ |
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public function __construct(SettingsContainerInterface $options, QRMatrix $matrix) |
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{ |
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if (!class_exists(FPDF::class)) { |
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// @codeCoverageIgnoreStart |
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throw new QRCodeOutputException('The QRFpdf output requires FPDF (https://github.com/Setasign/FPDF)' . ' as dependency but the class "\\FPDF" couldn\'t be found.'); |
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// @codeCoverageIgnoreEnd |
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} |
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parent::__construct($options, $matrix); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public static function moduleValueIsValid($value) : bool |
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{ |
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if (!is_array($value) || count($value) < 3) { |
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return \false; |
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} |
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// check the first 3 values of the array |
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foreach (array_values($value) as $i => $val) { |
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if ($i > 2) { |
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break; |
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} |
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if (!is_numeric($val)) { |
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return \false; |
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} |
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} |
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return \true; |
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} |
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/** |
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* @param array $value |
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* |
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* @inheritDoc |
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* @throws \chillerlan\QRCode\Output\QRCodeOutputException |
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*/ |
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protected function prepareModuleValue($value) : array |
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{ |
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$values = []; |
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foreach (array_values($value) as $i => $val) { |
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if ($i > 2) { |
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break; |
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} |
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$values[] = max(0, min(255, intval($val))); |
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} |
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if (count($values) !== 3) { |
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throw new QRCodeOutputException('invalid color value'); |
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} |
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return $values; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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protected function getDefaultModuleValue(bool $isDark) : array |
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{ |
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return $isDark ? [0, 0, 0] : [255, 255, 255]; |
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} |
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/** |
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* Initializes an FPDF instance |
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*/ |
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protected function initFPDF() : FPDF |
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{ |
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$fpdf = new FPDF('P', $this->options->fpdfMeasureUnit, $this->getOutputDimensions()); |
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$fpdf->AddPage(); |
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return $fpdf; |
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} |
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/** |
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* @inheritDoc |
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* |
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* @return string|\FPDF |
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*/ |
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public function dump(?string $file = null, ?FPDF $fpdf = null) |
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{ |
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$this->fpdf = $fpdf ?? $this->initFPDF(); |
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if ($this::moduleValueIsValid($this->options->bgColor)) { |
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$bgColor = $this->prepareModuleValue($this->options->bgColor); |
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[$width, $height] = $this->getOutputDimensions(); |
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/** @phan-suppress-next-line PhanParamTooFewUnpack */ |
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$this->fpdf->SetFillColor(...$bgColor); |
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$this->fpdf->Rect(0, 0, $width, $height, 'F'); |
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} |
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$this->prevColor = null; |
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foreach ($this->matrix->getMatrix() as $y => $row) { |
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foreach ($row as $x => $M_TYPE) { |
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$this->module($x, $y, $M_TYPE); |
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} |
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} |
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if ($this->options->returnResource) { |
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return $this->fpdf; |
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} |
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$pdfData = $this->fpdf->Output('S'); |
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$this->saveToFile($pdfData, $file); |
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if ($this->options->outputBase64) { |
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$pdfData = $this->toBase64DataURI($pdfData); |
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} |
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return $pdfData; |
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} |
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/** |
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* Renders a single module |
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*/ |
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protected function module(int $x, int $y, int $M_TYPE) : void |
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{ |
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if (!$this->drawLightModules && !$this->matrix->isDark($M_TYPE)) { |
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return; |
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} |
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$color = $this->getModuleValue($M_TYPE); |
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if ($color !== null && $color !== $this->prevColor) { |
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/** @phan-suppress-next-line PhanParamTooFewUnpack */ |
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$this->fpdf->SetFillColor(...$color); |
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$this->prevColor = $color; |
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} |
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$this->fpdf->Rect($x * $this->scale, $y * $this->scale, $this->scale, $this->scale, 'F'); |
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} |
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} |
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|
