ImageModel

flutter_hbb/lib/common.dart

@@ -7,6 +7,7 @@ import 'dart:async';
 import 'dart:convert';
 import 'package:flutter_easyloading/flutter_easyloading.dart';
 import 'dart:typed_data';
+import 'dart:ui' as ui;
 
 class RgbaFrame extends Struct {
   @Uint32()
@@ -50,6 +51,17 @@ class FfiModel with ChangeNotifier {
   }
 }
 
+class ImageModel with ChangeNotifier {
+  ui.Image _image;
+
+  ui.Image get image => _image;
+
+  void update(ui.Image image) {
+    _image = image;
+    notifyListeners();
+  }
+}
+
 class FFI {
   static F1 _freeCString;
   static F2 _getByName;
@@ -57,6 +69,8 @@ class FFI {
   static F4 _freeRgba;
   static F5 _getRgba;
   static Pointer<RgbaFrame> _lastRgbaFrame;
+  static final imageModel = ImageModel();
+  static final ffiModel = FfiModel();
 
   static String getId() {
     return getByName('remote_id');
@@ -115,6 +129,7 @@ class FFI {
 
   static void close() {
     setByName('close', '');
+    FFI.imageModel.update(null);
   }
 
   static void setByName(String name, String value) {

flutter_hbb/lib/main.dart

@@ -10,16 +10,17 @@ void main() {
 class App extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
-    var ffi = FfiModel();
     return ChangeNotifierProvider.value(
-        value: ffi,
-        child: MaterialApp(
-          title: 'RustDesk',
-          theme: ThemeData(
-            primarySwatch: Colors.blue,
-            visualDensity: VisualDensity.adaptivePlatformDensity,
-          ),
-          home: HomePage(title: 'RustDesk'),
-        ));
+        value: FFI.ffiModel,
+        child: ChangeNotifierProvider.value(
+            value: FFI.imageModel,
+            child: MaterialApp(
+              title: 'RustDesk',
+              theme: ThemeData(
+                primarySwatch: Colors.blue,
+                visualDensity: VisualDensity.adaptivePlatformDensity,
+              ),
+              home: HomePage(title: 'RustDesk'),
+            )));
   }
 }

flutter_hbb/lib/remote_page.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
 import 'common.dart';
 import 'package:flutter/services.dart';
 import 'dart:ui' as ui;
@@ -18,7 +19,6 @@ class RemotePage extends StatefulWidget {
 // https://github.com/hanxu317317/flutter_plan_demo/blob/master/lib/src/enter.dart
 class _RemotePageState extends State<RemotePage> {
   Timer _interval;
-  ui.Image _image;
   PeerInfo _pi = PeerInfo();
   Display _display = Display();
   bool _decoding = false;
@@ -64,13 +64,11 @@ class _RemotePageState extends State<RemotePage> {
         _decoding = true;
         ui.decodeImageFromPixels(
             rgba, _display.width, _display.height, ui.PixelFormat.bgra8888,
-            (__image) {
+            (image) {
           FFI.clearRgbaFrame();
           if (_decoding == null) return;
           _decoding = false;
-          setState(() {
-            _image = __image;
-          });
+          FFI.imageModel.update(image);
         });
       }
     }
@@ -133,17 +131,23 @@ class _RemotePageState extends State<RemotePage> {
       onInteractionUpdate: (details) {
         print("$details");
       },
-      child: Container(
-          child: CustomPaint(
-            painter: new ImageEditor(image: _image),
-          ),
-          color: MyTheme.grayBg),
+      child: Container(child: ImagePaint(), color: MyTheme.grayBg),
     ));
   }
 }
 
-class ImageEditor extends CustomPainter {
-  ImageEditor({
+class ImagePaint extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    final m = Provider.of<ImageModel>(context);
+    return CustomPaint(
+      painter: new ImagePainter(image: m.image),
+    );
+  }
+}
+
+class ImagePainter extends CustomPainter {
+  ImagePainter({
     this.image,
   });