From db672becbc19558b70645de20c9f59947ead1fa2 Mon Sep 17 00:00:00 2001
From: smoogipoo <smoogipoo@smgi.me>
Date: Thu, 12 Oct 2017 17:50:51 +0900
Subject: [PATCH] Implement waveform checkbox

---
 .../Edit/Screens/Compose/Timeline/ScrollableTimeline.cs     | 6 +++++-
 .../Screens/Compose/Timeline/ScrollingTimelineContainer.cs  | 4 ++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/osu.Game/Screens/Edit/Screens/Compose/Timeline/ScrollableTimeline.cs b/osu.Game/Screens/Edit/Screens/Compose/Timeline/ScrollableTimeline.cs
index 14c4f2d369..bf1237f1f7 100644
--- a/osu.Game/Screens/Edit/Screens/Compose/Timeline/ScrollableTimeline.cs
+++ b/osu.Game/Screens/Edit/Screens/Compose/Timeline/ScrollableTimeline.cs
@@ -23,6 +23,7 @@ namespace osu.Game.Screens.Edit.Screens.Compose.Timeline
             Masking = true;
             CornerRadius = 5;
 
+            OsuCheckbox waveformCheckbox;
             InternalChildren = new Drawable[]
             {
                 new Box
@@ -60,7 +61,7 @@ namespace osu.Game.Screens.Edit.Screens.Compose.Timeline
                                     {
                                         new OsuCheckbox { LabelText = "Hitobjects" },
                                         new OsuCheckbox { LabelText = "Hitsounds" },
-                                        new OsuCheckbox { LabelText = "Waveform" }
+                                        waveformCheckbox = new OsuCheckbox { LabelText = "Waveform" }
                                     }
                                 }
                             }
@@ -106,7 +107,10 @@ namespace osu.Game.Screens.Edit.Screens.Compose.Timeline
                 }
             };
 
+            waveformCheckbox.Current.Value = true;
+
             timelineContainer.Beatmap.BindTo(Beatmap);
+            timelineContainer.WaveformVisible.BindTo(waveformCheckbox.Current);
         }
 
         protected override void Update()
diff --git a/osu.Game/Screens/Edit/Screens/Compose/Timeline/ScrollingTimelineContainer.cs b/osu.Game/Screens/Edit/Screens/Compose/Timeline/ScrollingTimelineContainer.cs
index 00b7e52e27..a15db3d0df 100644
--- a/osu.Game/Screens/Edit/Screens/Compose/Timeline/ScrollingTimelineContainer.cs
+++ b/osu.Game/Screens/Edit/Screens/Compose/Timeline/ScrollingTimelineContainer.cs
@@ -14,6 +14,7 @@ namespace osu.Game.Screens.Edit.Screens.Compose.Timeline
 {
     internal class ScrollingTimelineContainer : ScrollContainer
     {
+        public readonly Bindable<bool> WaveformVisible = new Bindable<bool>();
         public readonly Bindable<WorkingBeatmap> Beatmap = new Bindable<WorkingBeatmap>();
 
         private readonly BeatmapWaveformGraph waveform;
@@ -34,6 +35,7 @@ namespace osu.Game.Screens.Edit.Screens.Compose.Timeline
             Content.RelativeSizeAxes = Axes.Both;
 
             waveform.Beatmap.BindTo(Beatmap);
+            WaveformVisible.ValueChanged += waveformVisibilityChanged;
         }
 
         private float minZoom = 1;
@@ -129,5 +131,7 @@ namespace osu.Game.Screens.Edit.Screens.Compose.Timeline
 
             return true;
         }
+
+        private void waveformVisibilityChanged(bool visible) => waveform.FadeTo(visible ? 1 : 0, 200, Easing.OutQuint);
     }
 }