Implement chart subsections

osu.Game/Overlays/Profile/Sections/Historical/ChartProfileSubsection.cs

@@ -0,0 +1,51 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using osu.Framework.Bindables;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Game.Users;
+using static osu.Game.Users.User;
+
+namespace osu.Game.Overlays.Profile.Sections.Historical
+{
+    public abstract class ChartProfileSubsection : ProfileSubsection
+    {
+        private ProfileLineChart chart;
+
+        protected ChartProfileSubsection(Bindable<User> user, string headerText)
+            : base(user, headerText)
+        {
+
+        }
+
+        protected override Drawable CreateContent() => new Container
+        {
+            RelativeSizeAxes = Axes.X,
+            AutoSizeAxes = Axes.Y,
+            Padding = new MarginPadding
+            {
+                Top = 10,
+                Left = 20,
+                Right = 40
+            },
+            Child = chart = new ProfileLineChart()
+        };
+
+        protected override void OnUserChanged(ValueChangedEvent<User> e)
+        {
+            var values = GetValues(e.NewValue);
+
+            if (values?.Length > 1)
+            {
+                chart.Values = values;
+                Show();
+                return;
+            }
+
+            Hide();
+        }
+
+        protected abstract UserHistoryCount[] GetValues(User user);
+    }
+}