use screenshot

ubuntu-kr · Jul 13, 2024 · ab9d617 · ab9d617
1 parent 69ed52f
commit ab9d617
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Showing 5 changed files with 53 additions and 26 deletions.
diff --git a/lib/main.dart b/lib/main.dart
@@ -2,6 +2,7 @@ import 'dart:io';
 import 'dart:ui';
 
 import 'package:flutter/material.dart';
+import 'package:ubuntu_kr_qr_kiosk/printScreen.dart';
 import 'checkInByEmailScreen.dart';
 import 'checkInByBarcodeScreen.dart';
 import 'package:yaru/yaru.dart';
@@ -120,6 +121,25 @@ class _KioskMainPageState extends State<KioskMainPage> {
                   );
                 },
               ),
+              IconButton(
+                icon: Icon(Icons.print),
+                tooltip: "인쇄 테스트",
+                onPressed: () {
+                  Navigator.push(
+                    context,
+                    MaterialPageRoute(
+                        builder: (context) => PrintPage(
+                            nametagData: NametagData(
+                                "[이름]",
+                                "[소속]",
+                                "[직책]",
+                                "https://ubuntu-kr.org",
+                                // "교환권\n티셔츠 XL (테스트)\n 도시락/채식 (테스트)",
+                                "",
+                                true))),
+                  );
+                },
+              )
             ]),
         body: Column(
           mainAxisAlignment: MainAxisAlignment.center,

diff --git a/lib/printScreen.dart b/lib/printScreen.dart
@@ -10,9 +10,7 @@ import 'package:qr_flutter/qr_flutter.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 import 'imgutil.dart';
 import 'printclient.dart';
-
-GlobalKey nametagKey = GlobalKey();
-GlobalKey couponKey = GlobalKey();
+import 'package:screenshot/screenshot.dart';
 
 class NametagData {
   final String name;
@@ -34,6 +32,8 @@ class PrintPage extends StatefulWidget {
 }
 
 class _PrintPageState extends State<PrintPage> {
+  ScreenshotController nametagScreenshotController = ScreenshotController();
+  ScreenshotController couponScreenshotController = ScreenshotController();
   var qrCodeContent = "";
   var nametagName = "";
   var nametagAffiliation = "";
@@ -58,8 +58,7 @@ class _PrintPageState extends State<PrintPage> {
   @override
   void initState() {
     super.initState();
-    Timer(Duration(seconds: 2), () async {
-      var prefs = await SharedPreferences.getInstance();
+    var prefs = SharedPreferences.getInstance().then((prefs) {
       var widthMm = prefs.getInt('printCanvasWidthMm') ?? 70;
       var heightMm = prefs.getInt('printCanvasHeightMm') ?? 70;
       var canvasDpi = prefs.getInt('printCanvasDpi') ?? 203;
@@ -69,7 +68,9 @@ class _PrintPageState extends State<PrintPage> {
         canvasWidthPx = (widthMm * canvasDpi) / 25.4;
         canvasHeightPx = (heightMm * canvasDpi) / 25.4;
       });
-      var result1 = await printNametag(nametagKey);
+    });
+    Timer(Duration(seconds: 1), () async {
+      var result1 = await printNametag(nametagScreenshotController);
       var result1Msg = result1
           ? "명찰 인쇄 완료. Nametag has been printed."
           : "명찰 인쇄중 오류 발생. Error while printing nametag.";
@@ -79,7 +80,7 @@ class _PrintPageState extends State<PrintPage> {
       ScaffoldMessenger.of(context).showSnackBar(snackBar);
       await Future.delayed(Duration(seconds: 1));
       if (couponDetail != "") {
-        var result2 = await printNametag(couponKey);
+        var result2 = await printNametag(couponScreenshotController);
         var result2Msg = result2
             ? "교환권 인쇄 완료. Coupon has been printed."
             : "교환권 인쇄중 오류 발생. Error while printing Coupon.";
@@ -102,17 +103,10 @@ class _PrintPageState extends State<PrintPage> {
     print('initState is called');
   }
 
-  Future<ui.Image> _capturePng(GlobalKey globalKey) async {
-    final RenderRepaintBoundary boundary =
-        globalKey.currentContext!.findRenderObject()! as RenderRepaintBoundary;
-    final ui.Image image = await boundary.toImage();
-    return image;
-  }
-
-  Future<bool> printNametag(GlobalKey globalKey) async {
-    var uiImage = await _capturePng(globalKey);
+  Future<bool> printNametag(ScreenshotController controller) async {
+    var uint8Image = await controller.capture();
     var result =
-        await printImageToLabel(uiImage, printerVendorId, printerProductId);
+        await printImageToLabel(uint8Image!, printerVendorId, printerProductId);
     setState(() {
       isProcessingQrCheckin = false;
     });
@@ -137,8 +131,8 @@ class _PrintPageState extends State<PrintPage> {
                       color: Colors.black,
                     ),
                   ),
-                  child: RepaintBoundary(
-                      key: nametagKey,
+                  child: Screenshot(
+                      controller: nametagScreenshotController,
                       child: SizedBox(
                           width: canvasWidthPx,
                           height: canvasHeightPx,
@@ -181,8 +175,8 @@ class _PrintPageState extends State<PrintPage> {
                         color: Colors.black,
                       ),
                     ),
-                    child: RepaintBoundary(
-                        key: couponKey,
+                    child: Screenshot(
+                        controller: couponScreenshotController,
                         child: SizedBox(
                             width: canvasWidthPx,
                             height: canvasHeightPx,

diff --git a/lib/printclient.dart b/lib/printclient.dart
@@ -1,23 +1,27 @@
 import 'dart:convert';
+import 'dart:io';
+import 'dart:typed_data';
 import 'dart:ui';
 import 'package:http/http.dart' as http;
 import 'package:http_parser/http_parser.dart';
 
 Future<int> printImageToLabel(
-    Image imageToPrint, int vendorId, int productId) async {
+    Uint8List imageUint8List, int vendorId, int productId) async {
   var url = Uri.parse(
       "http://0.0.0.0:5000/print/$vendorId/$productId?print_canvas_width_mm=70&print_canvas_height_mm=70&margin_top_px=0&margin_left_px=0&print_dpi=203");
   // imageToPrint to uint8list
-  var img_byte_data =
-      await imageToPrint.toByteData(format: ImageByteFormat.png);
-  var image_uint8list = img_byte_data!.buffer.asUint8List();
-  var multipartFile = http.MultipartFile.fromBytes("image", image_uint8list,
+  // var imgByteData = await imageToPrint.toByteData(format: ImageByteFormat.png);
+  // var imageUnit8List = imgByteData!.buffer.asUint8List();
+  File origFile = File("./image_flutter.png")..writeAsBytesSync(imageUint8List);
+  var multipartFile = http.MultipartFile.fromBytes("image", imageUint8List,
       filename: 'label.png', contentType: MediaType.parse('image/png'));
   var request = http.MultipartRequest("POST", url);
   // attach image file on multipart formadta
   request.files.add(multipartFile);
+
   var response = await request.send();
   return response.statusCode;
+  // return 200;
 }
 
 Future<List<dynamic>> getPrinterList() async {

diff --git a/pubspec.lock b/pubspec.lock
@@ -440,6 +440,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.1.9"
+  screenshot:
+    dependency: "direct main"
+    description:
+      name: screenshot
+      sha256: "63817697a7835e6ce82add4228e15d233b74d42975c143ad8cfe07009fab866b"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.0"
   shared_preferences:
     dependency: "direct main"
     description:

diff --git a/pubspec.yaml b/pubspec.yaml
@@ -48,6 +48,7 @@ dependencies:
   http: ^1.2.1
   google_fonts: ^6.2.1
   nm: ^0.5.0
+  screenshot: ^3.0.0
 
 dev_dependencies:
   flutter_test: