Add support for label in the PDF writer.

Does not support setting a custom font yet.
bwauu · Dec 4, 2020 · fe60861 · fe60861
1 parent 43b3695
commit fe60861
Showing 1 changed file with 8 additions and 4 deletions.
diff --git a/src/Writer/FpdfWriter.php b/src/Writer/FpdfWriter.php
@@ -42,17 +42,15 @@ public function writeString(QrCodeInterface $qrCode): string
         }
 
         $label = $qrCode->getLabel();
-        if (null !== $label) {
-            throw new \InvalidArgumentException('The fpdf qr writer doesn\'t support a label.');
-        }
+        $labelHeight = $label !== null ? 30 : 0;
 
         $data = $qrCode->getData();
         $options = $qrCode->getWriterOptions();
 
         $fpdf = new \FPDF(
             'P',
             $options[self::WRITER_OPTION_MEASURE_UNIT] ?? 'mm',
-            [$data['outer_width'], $data['outer_height']]
+            [$data['outer_width'], $data['outer_height'] + $labelHeight]
         );
         $fpdf->AddPage();
 
@@ -86,6 +84,12 @@ public function writeString(QrCodeInterface $qrCode): string
             );
         }
 
+        if (null !== $label) {
+            $fpdf->setY($data['outer_height'] + 5);
+            $fpdf->SetFont('Helvetica', null, $qrCode->getLabelFontSize());
+            $fpdf->Cell(0, 0, $label, 0, 0, strtoupper($qrCode->getLabelAlignment()[0]));
+	}
+
         return $fpdf->Output('S');
     }