状态栏右下角显示图像像素坐标和灰度

XplorePlane/Views/Main/ViewportPanelView.xaml.cs

@@ -17,13 +17,19 @@ namespace XplorePlane.Views
     {
         private MainViewModel _mainVm;
 
-        private void SetStatus(string msg)
+        private MainViewModel GetMainVm()
         {
             if (_mainVm == null)
             {
                 try { _mainVm = ContainerLocator.Current?.Resolve<MainViewModel>(); } catch { }
             }
-            if (_mainVm != null) _mainVm.StatusMessage = msg;
+            return _mainVm;
+        }
+
+        private void SetStatus(string msg)
+        {
+            var vm = GetMainVm();
+            if (vm != null) vm.StatusMessage = msg;
         }
 
         public ViewportPanelView()
@@ -113,6 +119,15 @@ namespace XplorePlane.Views
                 }, Prism.Events.ThreadOption.UIThread);
             }
             catch { }
+
+            // 光标信息：从 RoiCanvas.CursorInfo 同步到 MainViewModel
+            var cursorInfoDesc = System.ComponentModel.DependencyPropertyDescriptor.FromProperty(
+                PolygonRoiCanvas.CursorInfoProperty, typeof(PolygonRoiCanvas));
+            cursorInfoDesc?.AddValueChanged(RoiCanvas, (s, e) =>
+            {
+                var vm = GetMainVm();
+                if (vm != null) vm.CursorInfoText = RoiCanvas.CursorInfo;
+            });
         }
 
         private void OnDataContextChanged(object sender, DependencyPropertyChangedEventArgs e)