From b321dff158f9a6a4a117059faa9467deb26a7761 Mon Sep 17 00:00:00 2001
From: fufesou <shuanglongchen@yeah.net>
Date: Sun, 30 Oct 2022 14:38:35 +0800
Subject: [PATCH] flutter_desktop: debug win cursor 2

Signed-off-by: fufesou <shuanglongchen@yeah.net>
---
 flutter/lib/desktop/pages/remote_page.dart | 28 +++++++++++-----------
 flutter/lib/models/model.dart              | 28 +++++++++++++++++++++-
 2 files changed, 41 insertions(+), 15 deletions(-)

diff --git a/flutter/lib/desktop/pages/remote_page.dart b/flutter/lib/desktop/pages/remote_page.dart
index b10534030..05a244802 100644
--- a/flutter/lib/desktop/pages/remote_page.dart
+++ b/flutter/lib/desktop/pages/remote_page.dart
@@ -284,7 +284,7 @@ class ImagePaint extends StatelessWidget {
             ? keyboardEnabled.isTrue
                 ? (remoteCursorMoved.isTrue
                     ? SystemMouseCursors.none
-                    : _buildCustomCursorLinux(context, s))
+                    : _buildCustomCursor(context, s))
                 : _buildDisabledCursor(context, s)
             : MouseCursor.defer,
         onHover: (evt) {},
@@ -333,31 +333,31 @@ class ImagePaint extends StatelessWidget {
     }
   }
 
-  MouseCursor _buildCustomCursorLinux(BuildContext context, double scale) {
+  MouseCursor _buildCustomCursor(BuildContext context, double scale) {
     final cursor = Provider.of<CursorModel>(context);
-    final cacheLinux = cursor.cacheLinux;
-    if (cacheLinux == null) {
+    final cache = cursor.cache ?? cursor.defaultCache;
+    if (cache == null) {
       return MouseCursor.defer;
     } else {
-      final key = cacheLinux.updateGetKey(scale);
+      final key = cache.updateGetKey(scale);
       cursor.addKey(key);
       return FlutterCustomMemoryImageCursor(
-        pixbuf: cacheLinux.data,
+        pixbuf: cache.data,
         key: key,
-        // hotx: cacheLinux.hotx,
-        // hoty: cacheLinux.hoty,
+        // hotx: cache.hotx,
+        // hoty: cache.hoty,
         hotx: 0,
         hoty: 0,
-        imageWidth: (cacheLinux.width * cacheLinux.scale).toInt(),
-        imageHeight: (cacheLinux.height * cacheLinux.scale).toInt(),
+        imageWidth: (cache.width * cache.scale).toInt(),
+        imageHeight: (cache.height * cache.scale).toInt(),
       );
     }
   }
 
   MouseCursor _buildDisabledCursor(BuildContext context, double scale) {
     final cursor = Provider.of<CursorModel>(context);
-    final cacheLinux = cursor.cacheLinux;
-    if (cacheLinux == null) {
+    final cache = cursor.cache;
+    if (cache == null) {
       return MouseCursor.defer;
     } else {
       if (cursor.cachedForbidmemoryCursorData == null) {
@@ -368,8 +368,8 @@ class ImagePaint extends StatelessWidget {
       return FlutterCustomMemoryImageCursor(
         pixbuf: cursor.cachedForbidmemoryCursorData,
         key: key,
-        hotx: cacheLinux.hotx,
-        hoty: cacheLinux.hoty,
+        hotx: 0,
+        hoty: 0,
         imageWidth: 32,
         imageHeight: 32,
       );
diff --git a/flutter/lib/models/model.dart b/flutter/lib/models/model.dart
index 754d62fac..54d77ca95 100644
--- a/flutter/lib/models/model.dart
+++ b/flutter/lib/models/model.dart
@@ -724,6 +724,8 @@ class CursorModel with ChangeNotifier {
   ui.Image? _image;
   final _images = <int, Tuple3<ui.Image, double, double>>{};
   CursorData? _cache;
+  final _defaultCacheId = -1;
+  CursorData? _defaultCache;
   final _cacheMap = <int, CursorData>{};
   final _cacheKeys = <String>{};
   double _x = -10000;
@@ -736,7 +738,8 @@ class CursorModel with ChangeNotifier {
   WeakReference<FFI> parent;
 
   ui.Image? get image => _image;
-  CursorData? get cacheLinux => _cache;
+  CursorData? get cache => _cache;
+  CursorData? get defaultCache => _getDefaultCache();
 
   double get x => _x - _displayOriginX;
 
@@ -753,6 +756,29 @@ class CursorModel with ChangeNotifier {
   Set<String> get cachedKeys => _cacheKeys;
   addKey(String key) => _cacheKeys.add(key);
 
+  CursorData? _getDefaultCache() {
+    if (_defaultCache == null) {
+      if (Platform.isWindows) {
+        Uint8List data = defaultCursorImage!.getBytes(format: img2.Format.bgra);
+        _hotx = defaultCursorImage!.width / 2;
+        _hoty = defaultCursorImage!.height / 2;
+
+        _defaultCache = CursorData(
+          peerId: id,
+          id: _defaultCacheId,
+          image: defaultCursorImage?.clone(),
+          scale: 1.0,
+          data: data,
+          hotx: _hotx,
+          hoty: _hoty,
+          width: defaultCursorImage!.width,
+          height: defaultCursorImage!.height,
+        );
+      }
+    }
+    return _defaultCache;
+  }
+
   // remote physical display coordinate
   Rect getVisibleRect() {
     final size = MediaQueryData.fromWindow(ui.window).size;