[macos] Fix incorrect centering when multi-screen

Author: lijy91

README-ZH.md

@@ -145,7 +145,7 @@
 
 ```yaml
 dependencies:
-  window_manager: ^0.3.5
+  window_manager: ^0.3.6
 ```
 
 或

README.md

@@ -146,7 +146,7 @@ Add this to your package's `pubspec.yaml` file:
 
 ```yaml
 dependencies:
-  window_manager: ^0.3.5
+  window_manager: ^0.3.6
 ```
 
 Or

example/pubspec.lock

@@ -190,10 +190,10 @@ packages:
     dependency: transitive
     description:
       name: screen_retriever
-      sha256: "4931f226ca158123ccd765325e9fbf360bfed0af9b460a10f960f9bb13d58323"
+      sha256: "63694235c194d0d953f698fbb04471eb6c8d0e6bbb283a369b40414ed07ef83a"
       url: "https://pub.dev"
     source: hosted
-    version: "0.1.6"
+    version: "0.1.8"
   shortid:
     dependency: transitive
     description:
@@ -301,7 +301,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "0.3.5"
+    version: "0.3.6"
 sdks:
   dart: ">=3.0.0 <4.0.0"
   flutter: ">=3.3.0"

lib/src/utils/calc_window_position.dart

@@ -6,24 +6,39 @@ Future<Offset> calcWindowPosition(
   Alignment alignment,
 ) async {
   Display primaryDisplay = await screenRetriever.getPrimaryDisplay();
+  List<Display> allDisplays = await screenRetriever.getAllDisplays();
+  Offset cursorScreenPoint = await screenRetriever.getCursorScreenPoint();
 
-  num visibleWidth = primaryDisplay.size.width;
-  num visibleHeight = primaryDisplay.size.height;
+  Display currentDisplay = allDisplays.firstWhere(
+    (display) => Rect.fromLTWH(
+      display.visiblePosition!.dx,
+      display.visiblePosition!.dy,
+      display.size.width,
+      display.size.height,
+    ).contains(cursorScreenPoint),
+    orElse: () => primaryDisplay,
+  );
+
+  num visibleWidth = currentDisplay.size.width;
+  num visibleHeight = currentDisplay.size.height;
   num visibleStartX = 0;
   num visibleStartY = 0;
 
-  if (primaryDisplay.visibleSize != null) {
-    visibleWidth = primaryDisplay.visibleSize!.width;
-    visibleHeight = primaryDisplay.visibleSize!.height;
+  if (currentDisplay.visibleSize != null) {
+    visibleWidth = currentDisplay.visibleSize!.width;
+    visibleHeight = currentDisplay.visibleSize!.height;
   }
-  if (primaryDisplay.visiblePosition != null) {
-    visibleStartX = primaryDisplay.visiblePosition!.dx;
-    visibleStartY = primaryDisplay.visiblePosition!.dy;
+  if (currentDisplay.visiblePosition != null) {
+    visibleStartX = currentDisplay.visiblePosition!.dx;
+    visibleStartY = currentDisplay.visiblePosition!.dy;
   }
   Offset position = const Offset(0, 0);
 
   if (alignment == Alignment.topLeft) {
-    position = const Offset(0, 0);
+    position = Offset(
+      visibleStartX + 0,
+      visibleStartY + 0,
+    );
   } else if (alignment == Alignment.topCenter) {
     position = Offset(
       visibleStartX + (visibleWidth / 2) - (windowSize.width / 2),
@@ -65,6 +80,5 @@ Future<Offset> calcWindowPosition(
       visibleStartY + (visibleHeight - windowSize.height),
     );
   }
-
   return position;
 }

macos/Classes/WindowManager.swift

@@ -40,12 +40,12 @@ extension NSWindow {
 extension NSRect {
     var topLeft: CGPoint {
         set {
-            let screenFrameRect = NSScreen.main!.frame
+            let screenFrameRect = NSScreen.screens[0].frame
             origin.x = newValue.x
             origin.y = screenFrameRect.height - newValue.y - size.height
         }
         get {
-            let screenFrameRect = NSScreen.main!.frame
+            let screenFrameRect = NSScreen.screens[0].frame
             return CGPoint(x: origin.x, y: screenFrameRect.height - origin.y - size.height)
         }
     }

pubspec.lock

@@ -215,10 +215,10 @@ packages:
     dependency: "direct main"
     description:
       name: screen_retriever
-      sha256: "4931f226ca158123ccd765325e9fbf360bfed0af9b460a10f960f9bb13d58323"
+      sha256: "63694235c194d0d953f698fbb04471eb6c8d0e6bbb283a369b40414ed07ef83a"
       url: "https://pub.dev"
     source: hosted
-    version: "0.1.6"
+    version: "0.1.8"
   sky_engine:
     dependency: transitive
     description: flutter

pubspec.yaml

@@ -1,6 +1,6 @@
 name: window_manager
 description: This plugin allows Flutter desktop apps to resizing and repositioning the window.
-version: 0.3.5
+version: 0.3.6
 homepage: https://github.com/leanflutter/window_manager
 
 platforms:
@@ -23,7 +23,7 @@ dependencies:
   flutter:
     sdk: flutter
   path: ^1.8.2
-  screen_retriever: ^0.1.6
+  screen_retriever: ^0.1.8
 
 dev_dependencies:
   dependency_validator: ^3.0.0