Make BeatmapSetOverlay accept nulls everywhere

2025-07-03 01:09:57 +09:00 · 2018-04-18 16:04:02 +09:00
parent 0a292a6ab4
commit 1be2571d33
23 changed files with 322 additions and 162 deletions
--- a/osu.Game/Overlays/BeatmapSet/Buttons/PreviewButton.cs
+++ b/osu.Game/Overlays/BeatmapSet/Buttons/PreviewButton.cs
@ -0,0 +1,110 @@
+// 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.Allocation;
+using osu.Framework.Audio.Track;
+using osu.Framework.Configuration;
+using osu.Framework.Extensions.Color4Extensions;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.Shapes;
+using osu.Framework.Input;
+using osu.Game.Beatmaps;
+using osu.Game.Graphics;
+using osu.Game.Graphics.Containers;
+using osu.Game.Overlays.Direct;
+using OpenTK;
+using OpenTK.Graphics;
+
+namespace osu.Game.Overlays.BeatmapSet.Buttons
+{
+    public class PreviewButton : OsuClickableContainer
+    {
+        private const float transition_duration = 500;
+
+        private readonly Box bg, progress;
+        private readonly PlayButton playButton;
+
+        private Track preview => playButton.Preview;
+        public Bindable<bool> Playing => playButton.Playing;
+
+        public BeatmapSetInfo BeatmapSet
+        {
+            get { return playButton.BeatmapSet; }
+            set { playButton.BeatmapSet = value; }
+        }
+
+        public PreviewButton()
+        {
+            Height = 42;
+
+            Children = new Drawable[]
+            {
+                bg = new Box
+                {
+                    RelativeSizeAxes = Axes.Both,
+                    Colour = Color4.Black.Opacity(0.25f),
+                },
+                new Container
+                {
+                    Anchor = Anchor.BottomLeft,
+                    Origin = Anchor.BottomLeft,
+                    RelativeSizeAxes = Axes.X,
+                    Height = 3,
+                    Child = progress = new Box
+                    {
+                        RelativeSizeAxes = Axes.Both,
+                        Width = 0f,
+                        Alpha = 0f,
+                    },
+                },
+                playButton = new PlayButton
+                {
+                    Anchor = Anchor.Centre,
+                    Origin = Anchor.Centre,
+                    Size = new Vector2(18),
+                },
+            };
+
+            Action = () => Playing.Value = !Playing.Value;
+            Playing.ValueChanged += newValue => progress.FadeTo(newValue ? 1 : 0, 100);
+        }
+
+        [BackgroundDependencyLoader]
+        private void load(OsuColour colours)
+        {
+            progress.Colour = colours.Yellow;
+        }
+
+        protected override void Update()
+        {
+            base.Update();
+
+            if (Playing.Value && preview != null)
+            {
+                // prevent negative (potential infinite) width if a track without length was loaded
+                progress.Width = preview.Length > 0 ? (float)(preview.CurrentTime / preview.Length) : 0f;
+            }
+            else
+                progress.Width = 0;
+        }
+
+        protected override void Dispose(bool isDisposing)
+        {
+            Playing.Value = false;
+            base.Dispose(isDisposing);
+        }
+
+        protected override bool OnHover(InputState state)
+        {
+            bg.FadeColour(Color4.Black.Opacity(0.5f), 100);
+            return base.OnHover(state);
+        }
+
+        protected override void OnHoverLost(InputState state)
+        {
+            bg.FadeColour(Color4.Black.Opacity(0.25f), 100);
+            base.OnHoverLost(state);
+        }
+    }
+}