Fix statistics not being wrapped by containers

osu.Game/Rulesets/Ruleset.cs

@@ -210,6 +210,11 @@ namespace osu.Game.Rulesets
         /// <returns>An empty frame for the current ruleset, or null if unsupported.</returns>
         public virtual IConvertibleReplayFrame CreateConvertibleReplayFrame() => null;
 
+        /// <summary>
+        /// Creates the statistics for a <see cref="ScoreInfo"/> to be displayed in the results screen.
+        /// </summary>
+        /// <param name="score">The <see cref="ScoreInfo"/> to create the statistics for. The score is guaranteed to have <see cref="ScoreInfo.HitEvents"/> populated.</param>
+        /// <returns>The <see cref="StatisticRow"/>s to display. Each <see cref="StatisticRow"/> may contain 0 or more <see cref="StatisticItem"/>.</returns>
         [NotNull]
         public virtual StatisticRow[] CreateStatistics(ScoreInfo score) => Array.Empty<StatisticRow>();
     }

osu.Game/Screens/Ranking/Statistics/StatisticContainer.cs

@@ -19,9 +19,13 @@ namespace osu.Game.Screens.Ranking.Statistics
 
         public StatisticContainer(string name)
         {
+            RelativeSizeAxes = Axes.X;
+            AutoSizeAxes = Axes.Y;
+
             InternalChild = new GridContainer
             {
-                RelativeSizeAxes = Axes.Both,
+                RelativeSizeAxes = Axes.X,
+                AutoSizeAxes = Axes.Y,
                 Content = new[]
                 {
                     new Drawable[]
@@ -56,13 +60,15 @@ namespace osu.Game.Screens.Ranking.Statistics
                     {
                         content = new Container
                         {
-                            RelativeSizeAxes = Axes.Both
+                            RelativeSizeAxes = Axes.X,
+                            AutoSizeAxes = Axes.Y,
                         }
                     },
                 },
                 RowDimensions = new[]
                 {
                     new Dimension(GridSizeMode.AutoSize),
+                    new Dimension(GridSizeMode.AutoSize),
                 }
             };
         }

osu.Game/Screens/Ranking/Statistics/StatisticItem.cs

@@ -7,12 +7,32 @@ using osu.Framework.Graphics.Containers;
 
 namespace osu.Game.Screens.Ranking.Statistics
 {
+    /// <summary>
+    /// An item to be displayed in a row of statistics inside the results screen.
+    /// </summary>
     public class StatisticItem
     {
+        /// <summary>
+        /// The name of this item.
+        /// </summary>
         public readonly string Name;
+
+        /// <summary>
+        /// The <see cref="Drawable"/> content to be displayed.
+        /// </summary>
         public readonly Drawable Content;
+
+        /// <summary>
+        /// The <see cref="Dimension"/> of this row. This can be thought of as the column dimension of an encompassing <see cref="GridContainer"/>.
+        /// </summary>
         public readonly Dimension Dimension;
 
+        /// <summary>
+        /// Creates a new <see cref="StatisticItem"/>, to be displayed inside a <see cref="StatisticRow"/> in the results screen.
+        /// </summary>
+        /// <param name="name">The name of this item.</param>
+        /// <param name="content">The <see cref="Drawable"/> content to be displayed.</param>
+        /// <param name="dimension">The <see cref="Dimension"/> of this row. This can be thought of as the column dimension of an encompassing <see cref="GridContainer"/>.</param>
         public StatisticItem([NotNull] string name, [NotNull] Drawable content, [CanBeNull] Dimension dimension = null)
         {
             Name = name;

osu.Game/Screens/Ranking/Statistics/StatisticRow.cs

@@ -5,12 +5,15 @@ using JetBrains.Annotations;
 
 namespace osu.Game.Screens.Ranking.Statistics
 {
+    /// <summary>
+    /// A row of statistics to be displayed in the results screen.
+    /// </summary>
     public class StatisticRow
     {
         /// <summary>
         /// The columns of this <see cref="StatisticRow"/>.
         /// </summary>
-        [ItemCanBeNull]
+        [ItemNotNull]
         public StatisticItem[] Columns;
     }
 }

osu.Game/Screens/Ranking/Statistics/StatisticsPanel.cs

@@ -81,8 +81,15 @@ namespace osu.Game.Screens.Ranking.Statistics
                     {
                         RelativeSizeAxes = Axes.X,
                         AutoSizeAxes = Axes.Y,
-                        Content = new[] { row.Columns?.Select(c => c?.Content).ToArray() },
+                        Content = new[]
-                        ColumnDimensions = Enumerable.Range(0, row.Columns?.Length ?? 0).Select(i => row.Columns[i]?.Dimension ?? new Dimension()).ToArray(),
+                        {
+                            row.Columns?.Select(c => new StatisticContainer(c.Name)
+                            {
+                                Child = c.Content
+                            }).Cast<Drawable>().ToArray()
+                        },
+                        ColumnDimensions = Enumerable.Range(0, row.Columns?.Length ?? 0)
+                                                     .Select(i => row.Columns[i].Dimension ?? new Dimension()).ToArray(),
                         RowDimensions = new[] { new Dimension(GridSizeMode.AutoSize) }
                     });
                 }