Merge both variants of the star rating display

osu.Game/Beatmaps/Drawables/StarRatingDisplay.cs

@@ -0,0 +1,103 @@
+// 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.Allocation;
+using osu.Framework.Bindables;
+using osu.Framework.Extensions.Color4Extensions;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.Shapes;
+using osu.Framework.Graphics.Sprites;
+using osu.Framework.Graphics.UserInterface;
+using osu.Game.Graphics;
+using osu.Game.Graphics.Sprites;
+using osu.Game.Overlays;
+using osuTK;
+using osuTK.Graphics;
+
+namespace osu.Game.Beatmaps.Drawables
+{
+    /// <summary>
+    /// A pill that displays the star rating of a beatmap.
+    /// </summary>
+    public class StarRatingDisplay : CompositeDrawable, IHasCurrentValue<StarDifficulty>
+    {
+        private readonly bool useNewDifficultyColours;
+        private readonly Box background;
+        private readonly SpriteIcon starIcon;
+        private readonly OsuSpriteText starsText;
+
+        private readonly BindableWithCurrent<StarDifficulty> current = new BindableWithCurrent<StarDifficulty>();
+
+        public Bindable<StarDifficulty> Current
+        {
+            get => current.Current;
+            set => current.Current = value;
+        }
+
+        [Resolved]
+        private OsuColour colours { get; set; }
+
+        [Resolved(canBeNull: true)]
+        private OverlayColourProvider colourProvider { get; set; }
+
+        /// <summary>
+        /// Creates a new <see cref="StarRatingDisplay"/> using an already computed <see cref="StarDifficulty"/>.
+        /// </summary>
+        /// <param name="starDifficulty">The already computed <see cref="StarDifficulty"/> to display.</param>
+        /// <param name="useNewDifficultyColours">Use the new spectrum-based difficulty colours for the display, rather than the old.</param>
+        public StarRatingDisplay(StarDifficulty starDifficulty, bool useNewDifficultyColours = false)
+        {
+            this.useNewDifficultyColours = useNewDifficultyColours;
+
+            Current.Value = starDifficulty;
+
+            Size = new Vector2(52f, 20f);
+
+            InternalChild = new CircularContainer
+            {
+                Masking = true,
+                RelativeSizeAxes = Axes.Both,
+                Children = new Drawable[]
+                {
+                    background = new Box
+                    {
+                        RelativeSizeAxes = Axes.Both,
+                    },
+                    starIcon = new SpriteIcon
+                    {
+                        Anchor = Anchor.Centre,
+                        Origin = Anchor.Centre,
+                        Margin = new MarginPadding { Right = 30f },
+                        Icon = FontAwesome.Solid.Star,
+                        Size = new Vector2(8f),
+                    },
+                    starsText = new OsuSpriteText
+                    {
+                        Anchor = Anchor.Centre,
+                        Origin = Anchor.Centre,
+                        Margin = new MarginPadding { Left = 10f, Bottom = 1f },
+                        Font = OsuFont.Torus.With(size: 12f, weight: FontWeight.Bold),
+                    }
+                }
+            };
+        }
+
+        protected override void LoadComplete()
+        {
+            base.LoadComplete();
+
+            Current.BindValueChanged(c =>
+            {
+                starsText.Text = c.NewValue.Stars.ToString("0.00");
+
+                background.Colour = useNewDifficultyColours
+                    ? colours.ForStarDifficulty(c.NewValue.Stars)
+                    : colours.ForDifficultyRating(c.NewValue.DifficultyRating);
+
+                starIcon.Colour = c.NewValue.Stars >= 6.5 ? colours.Orange1 : colourProvider?.Background5 ?? Color4Extensions.FromHex("303d47");
+                starsText.Colour = c.NewValue.Stars >= 6.5 ? colours.Orange1 : colourProvider?.Background5 ?? Color4.Black.Opacity(0.75f);
+            }, true);
+        }
+    }
+}