set image center when remote resolution is changed

Signed-off-by: fufesou <shuanglongchen@yeah.net>

flutter/lib/common.dart

@@ -977,10 +977,10 @@ Future<bool> matchPeer(String searchText, Peer peer) async {
 
 /// Get the image for the current [platform].
 Widget getPlatformImage(String platform, {double size = 50}) {
-  platform = platform.toLowerCase();
-  if (platform == 'mac os') {
+  if (platform == kPeerPlatformMacOS) {
     platform = 'mac';
-  } else if (platform != 'linux' && platform != 'android') {
+  } else if (platform != kPeerPlatformLinux &&
+      platform != kPeerPlatformAndroid) {
     platform = 'win';
   }
   return SvgPicture.asset('assets/$platform.svg', height: size, width: size);

flutter/lib/consts.dart

@@ -5,6 +5,11 @@ import 'package:flutter_hbb/common.dart';
 
 const double kDesktopRemoteTabBarHeight = 28.0;
 
+const String kPeerPlatformWindows = "Windows";
+const String kPeerPlatformLinux = "Linux";
+const String kPeerPlatformMacOS = "Mac OS";
+const String kPeerPlatformAndroid = "Android";
+
 /// [kAppTypeMain] used by 'Desktop Main Page' , 'Mobile (Client and Server)' , 'Desktop CM Page', "Install Page"
 const String kAppTypeMain = "main";
 const String kAppTypeDesktopRemote = "remote";

flutter/lib/desktop/pages/remote_tab_page.dart

@@ -308,7 +308,7 @@ class _ConnectionTabPageState extends State<ConnectionTabPage> {
         dismissOnClicked: true,
       ));
 
-      if (pi.platform == 'Linux' || pi.sasEnabled) {
+      if (pi.platform == kPeerPlatformLinux || pi.sasEnabled) {
         menu.add(MenuEntryButton<String>(
           childBuilder: (TextStyle? style) => Text(
             '${translate("Insert")} Ctrl + Alt + Del',

flutter/lib/desktop/widgets/kb_layout_type_chooser.dart

@@ -1,6 +1,7 @@
 import 'dart:io';
 import 'package:flutter/material.dart';
 import 'package:get/get.dart';
+import 'package:flutter_hbb/consts.dart';
 import 'package:flutter_svg/flutter_svg.dart';
 import 'package:flutter_hbb/models/platform_model.dart';
 
@@ -170,14 +171,14 @@ RxString KBLayoutType = ''.obs;
 
 String getLocalPlatformForKBLayoutType(String peerPlatform) {
   String localPlatform = '';
-  if (peerPlatform != 'Mac OS') {
+  if (peerPlatform != kPeerPlatformMacOS) {
     return localPlatform;
   }
 
   if (Platform.isWindows) {
-    localPlatform = 'Windows';
+    localPlatform = kPeerPlatformWindows;
   } else if (Platform.isLinux) {
-    localPlatform = 'Linux';
+    localPlatform = kPeerPlatformLinux;
   }
   // to-do: web desktop support ?
   return localPlatform;

flutter/lib/desktop/widgets/remote_menubar.dart

@@ -589,7 +589,7 @@ class _RemoteMenubarState extends State<RemoteMenubar> {
     }
     displayMenu.add(MenuEntryDivider());
     if (perms['keyboard'] != false) {
-      if (pi.platform == 'Linux' || pi.sasEnabled) {
+      if (pi.platform == kPeerPlatformLinux || pi.sasEnabled) {
         displayMenu.add(MenuEntryButton<String>(
           childBuilder: (TextStyle? style) => Text(
             '${translate("Insert")} Ctrl + Alt + Del',
@@ -604,9 +604,9 @@ class _RemoteMenubarState extends State<RemoteMenubar> {
       }
     }
     if (perms['restart'] != false &&
-        (pi.platform == 'Linux' ||
-            pi.platform == 'Windows' ||
-            pi.platform == 'Mac OS')) {
+        (pi.platform == kPeerPlatformLinux ||
+            pi.platform == kPeerPlatformWindows ||
+            pi.platform == kPeerPlatformMacOS)) {
       displayMenu.add(MenuEntryButton<String>(
         childBuilder: (TextStyle? style) => Text(
           translate('Restart Remote Device'),
@@ -633,7 +633,7 @@ class _RemoteMenubarState extends State<RemoteMenubar> {
         dismissOnClicked: true,
       ));
 
-      if (pi.platform == 'Windows') {
+      if (pi.platform == kPeerPlatformWindows) {
         displayMenu.add(MenuEntryButton<String>(
           childBuilder: (TextStyle? style) => Obx(() => Text(
                 translate(
@@ -1157,7 +1157,7 @@ class _RemoteMenubarState extends State<RemoteMenubar> {
     }
 
     if (Platform.isWindows &&
-        pi.platform == 'Windows' &&
+        pi.platform == kPeerPlatformWindows &&
         perms['file'] != false) {
       displayMenu.add(_createSwitchMenuEntry(
           'Allow file copy and paste', 'enable-file-transfer', padding, true));

flutter/lib/mobile/pages/remote_page.dart

@@ -574,14 +574,14 @@ class _RemotePageState extends State<RemotePage> {
       more.add(PopupMenuItem<String>(
           child: Text(translate('Physical Keyboard Input Mode')),
           value: 'input-mode'));
-      if (pi.platform == 'Linux' || pi.sasEnabled) {
+      if (pi.platform == kPeerPlatformLinux || pi.sasEnabled) {
         more.add(PopupMenuItem<String>(
             child: Text('${translate('Insert')} Ctrl + Alt + Del'),
             value: 'cad'));
       }
       more.add(PopupMenuItem<String>(
           child: Text(translate('Insert Lock')), value: 'lock'));
-      if (pi.platform == 'Windows' &&
+      if (pi.platform == kPeerPlatformWindows &&
           await bind.sessionGetToggleOption(id: id, arg: 'privacy-mode') !=
               true) {
         more.add(PopupMenuItem<String>(
@@ -591,9 +591,9 @@ class _RemotePageState extends State<RemotePage> {
       }
     }
     if (perms["restart"] != false &&
-        (pi.platform == "Linux" ||
-            pi.platform == "Windows" ||
-            pi.platform == "Mac OS")) {
+        (pi.platform == kPeerPlatformLinux ||
+            pi.platform == kPeerPlatformWindows ||
+            pi.platform == kPeerPlatformMacOS)) {
       more.add(PopupMenuItem<String>(
           child: Text(translate('Restart Remote Device')), value: 'restart'));
     }
@@ -740,7 +740,7 @@ class _RemotePageState extends State<RemotePage> {
     }
 
     final pi = gFFI.ffiModel.pi;
-    final isMac = pi.platform == "Mac OS";
+    final isMac = pi.platform == kPeerPlatformMacOS;
     final modifiers = <Widget>[
       wrap('Ctrl ', () {
         setState(() => inputModel.ctrl = !inputModel.ctrl);
@@ -995,7 +995,7 @@ void showOptions(
       }
       more.add(getToggle(
           id, setState, 'lock-after-session-end', 'Lock after session end'));
-      if (pi.platform == 'Windows') {
+      if (pi.platform == kPeerPlatformWindows) {
         more.add(getToggle(id, setState, 'privacy-mode', 'Privacy mode'));
       }
     }

flutter/lib/models/file_model.dart

@@ -4,6 +4,7 @@ import 'dart:io';
 
 import 'package:flutter/material.dart';
 import 'package:flutter_hbb/common.dart';
+import 'package:flutter_hbb/consts.dart';
 import 'package:get/get.dart';
 import 'package:path/path.dart' as path;
 
@@ -347,7 +348,7 @@ class FileModel extends ChangeNotifier {
             id: parent.target?.id ?? "", name: "remote_show_hidden"))
         .isNotEmpty;
     _remoteOption.isWindows =
-        parent.target?.ffiModel.pi.platform.toLowerCase() == "windows";
+        parent.target?.ffiModel.pi.platform == kPeerPlatformWindows;
 
     await Future.delayed(Duration(milliseconds: 100));
 

flutter/lib/models/model.dart

@@ -61,7 +61,7 @@ class FfiModel with ChangeNotifier {
 
   bool get touchMode => _touchMode;
 
-  bool get isPeerAndroid => _pi.platform == 'Android';
+  bool get isPeerAndroid => _pi.platform == kPeerPlatformAndroid;
 
   set inputBlocked(v) {
     _inputBlocked = v;
@@ -238,6 +238,11 @@ class FfiModel with ChangeNotifier {
     if ((_display.width > _display.height) != oldOrientation) {
       gFFI.canvasModel.updateViewStyle();
     }
+    if (_pi.platform == kPeerPlatformLinux ||
+        _pi.platform == kPeerPlatformWindows ||
+        _pi.platform == kPeerPlatformMacOS) {
+      parent.target?.canvasModel.updateViewStyle();
+    }
     parent.target?.recordingModel.onSwitchDisplay();
     notifyListeners();
   }