opt scale

Signed-off-by: dom <githubaccount56556@proton.me>

lib/main.dart

@@ -4,6 +4,7 @@ import 'package:PiliPlus/build_config.dart';
 import 'package:PiliPlus/common/constants.dart';
 import 'package:PiliPlus/common/widgets/custom_toast.dart';
 import 'package:PiliPlus/common/widgets/mouse_back.dart';
+import 'package:PiliPlus/common/widgets/scale_app.dart';
 import 'package:PiliPlus/http/init.dart';
 import 'package:PiliPlus/models/common/theme/theme_color_type.dart';
 import 'package:PiliPlus/plugin/pl_player/controller.dart';
@@ -46,7 +47,7 @@ import 'package:window_manager/window_manager.dart' hide calcWindowPosition;
 WebViewEnvironment? webViewEnvironment;
 
 void main() async {
-  WidgetsFlutterBinding.ensureInitialized();
+  ScaledWidgetsFlutterBinding.ensureInitialized();
   MediaKit.ensureInitialized();
   tmpDirPath = (await getTemporaryDirectory()).path;
   appSupportDirPath = (await getApplicationSupportDirectory()).path;
@@ -57,6 +58,7 @@ void main() async {
     if (kDebugMode) debugPrint('GStorage init error: $e');
     exit(0);
   }
+  ScaledWidgetsFlutterBinding.instance.setScaleFactor(Pref.uiScale);
 
   if (PlatformUtils.isDesktop) {
     final customDownPath = Pref.downloadPath;
@@ -298,29 +300,16 @@ class MyApp extends StatelessWidget {
           final mediaQuery = MediaQuery.of(context);
           final textScaler = TextScaler.linear(Pref.defaultTextScale);
           if (uiScale != 1.0) {
-            // Apply full UI scaling for desktop
-            final actualSize = mediaQuery.size;
-            final scaledSize = actualSize / uiScale;
             child = MediaQuery(
               data: mediaQuery.copyWith(
-                // Tell child the logical size it should layout to
-                size: scaledSize,
                 textScaler: textScaler,
+                size: mediaQuery.size / uiScale,
                 padding: mediaQuery.padding / uiScale,
-                viewPadding: mediaQuery.viewPadding / uiScale,
                 viewInsets: mediaQuery.viewInsets / uiScale,
+                viewPadding: mediaQuery.viewPadding / uiScale,
+                devicePixelRatio: mediaQuery.devicePixelRatio * uiScale,
               ),
-              // Use OverflowBox to let child layout to scaledSize,
-              // then FittedBox scales it to fit actualSize
-              child: FittedBox(
-                fit: BoxFit.fill,
-                alignment: Alignment.topLeft,
-                child: SizedBox(
-                  width: scaledSize.width,
-                  height: scaledSize.height,
-                  child: child,
-                ),
-              ),
+              child: child!,
             );
           } else {
             child = MediaQuery(