Added button to save labels as png images

Resolves #80
Resolves #348

client/package.json

@@ -23,6 +23,7 @@
     "antd": "^5.20.0",
     "axios": "^1.7.3",
     "flag-icons": "^7.2.3",
+    "html-to-image": "^1.11.11",
     "i18next": "^23.12.2",
     "i18next-browser-languagedetector": "^8.0.0",
     "i18next-http-backend": "^2.5.2",

client/public/locales/en/common.json

@@ -99,7 +99,8 @@
             "deleteSettings": "Delete Current Preset",
             "deleteSettingsConfirm": "Are you sure you want to delete this preset?",
             "settingsName": "Preset Name",
-            "saveSetting": "Save Presets"
+            "saveSetting": "Save Presets",
+            "saveAsImage": "Save as Image"
         },
         "qrcode": {
             "button": "Print Labels",

client/src/pages/printing/printingDialog.tsx

@@ -1,4 +1,4 @@
-import { PrinterOutlined } from "@ant-design/icons";
+import { FileImageOutlined, PrinterOutlined } from "@ant-design/icons";
 import { useTranslate } from "@refinedev/core";
 import {
   Button,
@@ -14,6 +14,7 @@ import {
   Slider,
   Space,
 } from "antd";
+import * as htmlToImage from "html-to-image";
 import React, { useRef } from "react";
 import ReactToPrint from "react-to-print";
 import { useSavedState } from "../../utils/saveload";
@@ -119,6 +120,7 @@ const PrintingDialog: React.FC<PrintingDialogProps> = ({
       return (
         <div
           key={itemIdx}
+          className="print-page-item"
           style={{
             width: `${itemWidth}mm`,
             height: `${itemHeight}mm`,
@@ -175,6 +177,30 @@ const PrintingDialog: React.FC<PrintingDialogProps> = ({
     );
   });
 
+  const saveAsImage = () => {
+    const hasPrinted: Element[] = [];
+
+    Array.from(document.getElementsByClassName("print-qrcode-item")).forEach(async (item) => {
+      // Prevent printing copies
+      for (let i = 0; i < hasPrinted.length; i += 1) {
+        if (item.isEqualNode(hasPrinted[i])) return;
+      }
+      hasPrinted.push(item);
+
+      // Generate png image
+      const url = await htmlToImage.toPng(item as HTMLElement, {
+        backgroundColor: "#FFF",
+        cacheBust: true,
+      });
+
+      // Download image
+      const link = document.createElement("a");
+      link.href = url;
+      link.download = "spoolmanlabel.png";
+      link.click();
+    });
+  };
+
   return (
     <>
       <Row gutter={16}>
@@ -788,6 +814,9 @@ const PrintingDialog: React.FC<PrintingDialogProps> = ({
         <Col>
           <Space>
             {extraButtons}
+            <Button type="primary" icon={<FileImageOutlined />} size="large" onClick={saveAsImage}>
+              {t("printing.generic.saveAsImage")}
+            </Button>
             <ReactToPrint
               key="print-button"
               trigger={() => (