Added basic support for label barcodes (C39 and QR).

src/Services/LabelSystem/BarcodeGenerator.php

@@ -0,0 +1,74 @@
+<?php
+/**
+ * This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
+ *
+ * Copyright (C) 2019 - 2020 Jan Böhmer (https://github.com/jbtronics)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+namespace App\Services\LabelSystem;
+
+use App\Entity\LabelSystem\LabelOptions;
+use App\Services\LabelSystem\Barcodes\BarcodeContentGenerator;
+use Com\Tecnick\Barcode\Barcode;
+
+class BarcodeGenerator
+{
+    protected $barcodeContentGenerator;
+
+    public function __construct(BarcodeContentGenerator $barcodeContentGenerator)
+    {
+        $this->barcodeContentGenerator = $barcodeContentGenerator;
+    }
+
+    public function generateSVG(LabelOptions $options, object $target): ?string
+    {
+        $barcode = new Barcode();
+
+        switch ($options->getBarcodeType()) {
+            case 'qr':
+                $type = 'QRCODE';
+                break;
+            case 'code39':
+                $type = 'C93';
+                break;
+            case 'none':
+                return null;
+            default:
+                throw new \InvalidArgumentException('Unknown label type!');
+        }
+
+
+
+        $bobj = $barcode->getBarcodeObj($type, $this->getContent($options, $target));
+
+        return $bobj->getSvgCode();
+    }
+
+    public function getContent(LabelOptions $options, object $target): ?string
+    {
+        switch ($options->getBarcodeType()) {
+            case 'qr':
+                return $this->barcodeContentGenerator->getURLContent($target);
+            case 'code39':
+                return $this->barcodeContentGenerator->get1DBarcodeContent($target);
+            case 'none':
+                return null;
+            default:
+                throw new \InvalidArgumentException('Unknown label type!');
+        }
+    }
+
+}