add support for borderTopLeftRaduis and the three other one-corner-on…

…ly border radius props to ReactImageManager (#1871)

ReactWindows/ReactNative/Views/Image/ReactImageManager.cs

@@ -161,15 +161,53 @@ public void SetSource(Border view, JArray sources)
  }
  }
 
+ /// <summary>
+ /// Enum values correspond to positions of prop names in ReactPropGroup attribute
+ /// applied to <see cref="SetBorderRadius(Border, int, double)"/>
+ /// </summary>
+ private enum Radius
+ {
+ All,
+ TopLeft,
+ TopRight,
+ BottomLeft,
+ BottomRight,
+ }
+
  /// <summary>
  /// The border radius of the <see cref="ReactRootView"/>.
  /// </summary>
  /// <param name="view">The image view instance.</param>
+ /// <param name="index">The prop index.</param>
  /// <param name="radius">The border radius value.</param>
- [ReactProp("borderRadius")]
- public void SetBorderRadius(Border view, double radius)
+ [ReactPropGroup(
+ ViewProps.BorderRadius,
+ ViewProps.BorderTopLeftRadius,
+ ViewProps.BorderTopRightRadius,
+ ViewProps.BorderBottomLeftRadius,
+ ViewProps.BorderBottomRightRadius)]
+ public void SetBorderRadius(Border view, int index, double radius)
  {
- view.CornerRadius = new CornerRadius(radius);
+ var cornerRadius = view.CornerRadius;
+ switch ((Radius)index)
+ {
+ case Radius.All:
+ cornerRadius = new CornerRadius(radius);
+ break;
+ case Radius.TopLeft:
+ cornerRadius.TopLeft = radius;
+ break;
+ case Radius.TopRight:
+ cornerRadius.TopRight = radius;
+ break;
+ case Radius.BottomLeft:
+ cornerRadius.BottomLeft = radius;
+ break;
+ case Radius.BottomRight:
+ cornerRadius.BottomRight = radius;
+ break;
+ }
+ view.CornerRadius = cornerRadius;
  }
 
  /// <summary>