added dependencies

vendor/chillerlan/php-qrcode/src/Output/QRFpdf.php

@@ -0,0 +1,177 @@
+<?php
+/**
+ * Class QRFpdf
+ *
+ * @created      03.06.2020
+ * @author       Maximilian Kresse
+ * @license      MIT
+ *
+ * @see https://github.com/chillerlan/php-qrcode/pull/49
+ */
+
+namespace chillerlan\QRCode\Output;
+
+use chillerlan\QRCode\Data\QRMatrix;
+use chillerlan\Settings\SettingsContainerInterface;
+use FPDF;
+
+use function array_values, class_exists, count, intval, is_array, is_numeric, max, min;
+
+/**
+ * QRFpdf output module (requires fpdf)
+ *
+ * @see https://github.com/Setasign/FPDF
+ * @see http://www.fpdf.org/
+ */
+class QRFpdf extends QROutputAbstract{
+
+	public const MIME_TYPE = 'application/pdf';
+
+	protected FPDF   $fpdf;
+	protected ?array $prevColor = null;
+
+	/**
+	 * QRFpdf constructor.
+	 *
+	 * @throws \chillerlan\QRCode\Output\QRCodeOutputException
+	 */
+	public function __construct(SettingsContainerInterface $options, QRMatrix $matrix){
+
+		if(!class_exists(FPDF::class)){
+			// @codeCoverageIgnoreStart
+			throw new QRCodeOutputException(
+				'The QRFpdf output requires FPDF (https://github.com/Setasign/FPDF)'.
+				' as dependency but the class "\\FPDF" couldn\'t be found.'
+			);
+			// @codeCoverageIgnoreEnd
+		}
+
+		parent::__construct($options, $matrix);
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public static function moduleValueIsValid($value):bool{
+
+		if(!is_array($value) || count($value) < 3){
+			return false;
+		}
+
+		// check the first 3 values of the array
+		foreach(array_values($value) as $i => $val){
+
+			if($i > 2){
+				break;
+			}
+
+			if(!is_numeric($val)){
+				return false;
+			}
+
+		}
+
+		return true;
+	}
+
+	/**
+	 * @param array $value
+	 *
+	 * @inheritDoc
+	 * @throws \chillerlan\QRCode\Output\QRCodeOutputException
+	 */
+	protected function prepareModuleValue($value):array{
+		$values = [];
+
+		foreach(array_values($value) as $i => $val){
+
+			if($i > 2){
+				break;
+			}
+
+			$values[] = max(0, min(255, intval($val)));
+		}
+
+		if(count($values) !== 3){
+			throw new QRCodeOutputException('invalid color value');
+		}
+
+		return $values;
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	protected function getDefaultModuleValue(bool $isDark):array{
+		return ($isDark) ? [0, 0, 0] : [255, 255, 255];
+	}
+
+	/**
+	 * Initializes an FPDF instance
+	 */
+	protected function initFPDF():FPDF{
+		return new FPDF('P', $this->options->fpdfMeasureUnit, $this->getOutputDimensions());
+	}
+
+	/**
+	 * @inheritDoc
+	 *
+	 * @return string|\FPDF
+	 */
+	public function dump(string $file = null){
+		$this->fpdf = $this->initFPDF();
+		$this->fpdf->AddPage();
+
+		if($this::moduleValueIsValid($this->options->bgColor)){
+			$bgColor          = $this->prepareModuleValue($this->options->bgColor);
+			[$width, $height] = $this->getOutputDimensions();
+
+			/** @phan-suppress-next-line PhanParamTooFewUnpack */
+			$this->fpdf->SetFillColor(...$bgColor);
+			$this->fpdf->Rect(0, 0, $width, $height, 'F');
+		}
+
+		$this->prevColor = null;
+
+		foreach($this->matrix->getMatrix() as $y => $row){
+			foreach($row as $x => $M_TYPE){
+				$this->module($x, $y, $M_TYPE);
+			}
+		}
+
+		if($this->options->returnResource){
+			return $this->fpdf;
+		}
+
+		$pdfData = $this->fpdf->Output('S');
+
+		$this->saveToFile($pdfData, $file);
+
+		if($this->options->outputBase64){
+			$pdfData = $this->toBase64DataURI($pdfData);
+		}
+
+		return $pdfData;
+	}
+
+	/**
+	 * Renders a single module
+	 */
+	protected function module(int $x, int $y, int $M_TYPE):void{
+
+		if(!$this->drawLightModules && !$this->matrix->isDark($M_TYPE)){
+			return;
+		}
+
+		$color = $this->getModuleValue($M_TYPE);
+
+		if($color !== null && $color !== $this->prevColor){
+			/** @phan-suppress-next-line PhanParamTooFewUnpack */
+			$this->fpdf->SetFillColor(...$color);
+			$this->prevColor = $color;
+		}
+
+		$this->fpdf->Rect(($x * $this->scale), ($y * $this->scale), $this->scale, $this->scale, 'F');
+	}
+
+}