From e920b8d5774beb09455e462ac09347e768e81a7e Mon Sep 17 00:00:00 2001
From: DrabWeb <sethunity@gmail.com>
Date: Mon, 28 May 2018 19:11:26 -0300
Subject: [PATCH] Add UpdateableBeatmapSetCover.

---
 .../Drawables/UpdateableBeatmapSetCover.cs    | 78 +++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 osu.Game/Beatmaps/Drawables/UpdateableBeatmapSetCover.cs

diff --git a/osu.Game/Beatmaps/Drawables/UpdateableBeatmapSetCover.cs b/osu.Game/Beatmaps/Drawables/UpdateableBeatmapSetCover.cs
new file mode 100644
index 0000000000..e25f5a9431
--- /dev/null
+++ b/osu.Game/Beatmaps/Drawables/UpdateableBeatmapSetCover.cs
@@ -0,0 +1,78 @@
+// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.Shapes;
+using OpenTK.Graphics;
+
+namespace osu.Game.Beatmaps.Drawables
+{
+    public class UpdateableBeatmapSetCover : Container
+    {
+        private Drawable displayedCover;
+
+        private BeatmapSetInfo beatmapSet;
+        public BeatmapSetInfo BeatmapSet
+        {
+            get { return beatmapSet; }
+            set
+            {
+                if (value == beatmapSet) return;
+                beatmapSet = value;
+
+                if (IsLoaded)
+                    updateCover();
+            }
+        }
+
+        private BeatmapSetCoverType coverType = BeatmapSetCoverType.Cover;
+        public BeatmapSetCoverType CoverType
+        {
+            get { return coverType; }
+            set
+            {
+                if (value == coverType) return;
+                coverType = value;
+
+                if (IsLoaded)
+                    updateCover();
+            }
+        }
+
+        public UpdateableBeatmapSetCover()
+        {
+            Child = new Box
+            {
+                RelativeSizeAxes = Axes.Both,
+                Colour = Color4.Black,
+            };
+        }
+
+        protected override void LoadComplete()
+        {
+            base.LoadComplete();
+            updateCover();
+        }
+
+        private void updateCover()
+        {
+            displayedCover?.FadeOut(400);
+            displayedCover?.Expire();
+
+            if (beatmapSet != null)
+            {
+                Add(displayedCover = new DelayedLoadWrapper(
+                    new BeatmapSetCover(beatmapSet, coverType)
+                    {
+                        Anchor = Anchor.Centre,
+                        Origin = Anchor.Centre,
+                        RelativeSizeAxes = Axes.Both,
+                        FillMode = FillMode.Fill,
+                        OnLoadComplete = d => d.FadeInFromZero(400, Easing.Out),
+                    })
+                );
+            }
+        }
+    }
+}