remove ScrollOrientation

src/Avalonia.Controls/Utils/OrientationBasedMeasures.cs

@@ -1,16 +1,12 @@
-namespace Avalonia.Controls.Utils;
+using Avalonia.Layout;
 
-internal enum ScrollOrientation
-{
-    Horizontal,
-    Vertical
-}
+namespace Avalonia.Controls.Utils;
 
 internal interface IOrientationBasedMeasures
 {
-    ScrollOrientation ScrollOrientation { get; }
+    Orientation ScrollOrientation { get; }
 
-    bool IsVertical => ScrollOrientation is ScrollOrientation.Vertical;
+    bool IsVertical => ScrollOrientation is Orientation.Vertical;
 }
 
 internal static class OrientationBasedMeasuresExt

src/Avalonia.Controls/WrapPanel.cs

@@ -165,9 +165,9 @@ namespace Avalonia.Controls
             set => SetValue(ItemHeightProperty, value);
         }
 
-        private ScrollOrientation ScrollOrientation { get; set; } = ScrollOrientation.Vertical;
+        private Orientation ScrollOrientation { get; set; } = Orientation.Vertical;
 
-        ScrollOrientation IOrientationBasedMeasures.ScrollOrientation => ScrollOrientation;
+        Orientation IOrientationBasedMeasures.ScrollOrientation => ScrollOrientation;
 
         /// <inheritdoc />
         protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
@@ -175,8 +175,8 @@ namespace Avalonia.Controls
             base.OnPropertyChanged(change);
             if (change.Property == OrientationProperty)
                 ScrollOrientation = Orientation is Orientation.Horizontal ?
-                    ScrollOrientation.Vertical :
-                    ScrollOrientation.Horizontal;
+                    Orientation.Vertical :
+                    Orientation.Horizontal;
         }
 
         /// <summary>