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351 lines
12 KiB
C#
351 lines
12 KiB
C#
// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
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// See the LICENCE file in the repository root for full licence text.
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#nullable enable
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using System;
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using System.Linq;
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using osu.Framework.Allocation;
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using osu.Framework.Bindables;
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using osu.Framework.Graphics;
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using osu.Framework.Graphics.Audio;
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using osu.Framework.Graphics.Containers;
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using osu.Framework.Graphics.Shapes;
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using osu.Framework.Input.Events;
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using osu.Game.Beatmaps;
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using osu.Game.Beatmaps.ControlPoints;
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using osu.Game.Graphics;
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using osu.Game.Graphics.Sprites;
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using osu.Game.Graphics.UserInterfaceV2;
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using osu.Game.Overlays;
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using osuTK;
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using osuTK.Graphics;
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namespace osu.Game.Screens.Edit.Timing
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{
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internal class WaveformComparisonDisplay : CompositeDrawable
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{
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private const int total_waveforms = 8;
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private const float corner_radius = LabelledDrawable<Drawable>.CORNER_RADIUS;
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private readonly BindableNumber<double> beatLength = new BindableDouble();
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[Resolved]
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private IBindable<WorkingBeatmap> beatmap { get; set; } = null!;
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[Resolved]
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private EditorBeatmap editorBeatmap { get; set; } = null!;
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[Resolved]
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private Bindable<ControlPointGroup?> selectedGroup { get; set; } = null!;
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[Resolved]
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private EditorClock editorClock { get; set; } = null!;
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private TimingControlPoint timingPoint = TimingControlPoint.DEFAULT;
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private double displayedTime;
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private double selectedGroupStartTime;
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private double selectedGroupEndTime;
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private readonly IBindableList<ControlPointGroup> controlPointGroups = new BindableList<ControlPointGroup>();
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private readonly BindableBool displayLocked = new BindableBool();
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private LockedOverlay lockedOverlay = null!;
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public WaveformComparisonDisplay()
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{
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RelativeSizeAxes = Axes.Both;
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CornerRadius = corner_radius;
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Masking = true;
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}
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protected override void LoadComplete()
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{
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base.LoadComplete();
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for (int i = 0; i < total_waveforms; i++)
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{
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AddInternal(new WaveformRow(i == total_waveforms / 2)
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{
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RelativeSizeAxes = Axes.Both,
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RelativePositionAxes = Axes.Both,
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Height = 1f / total_waveforms,
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Y = (float)i / total_waveforms,
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});
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}
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AddInternal(new Circle
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{
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Anchor = Anchor.Centre,
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Origin = Anchor.Centre,
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Colour = Color4.White,
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RelativeSizeAxes = Axes.Y,
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Width = 3,
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});
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AddInternal(lockedOverlay = new LockedOverlay());
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selectedGroup.BindValueChanged(_ => updateTimingGroup(), true);
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controlPointGroups.BindTo(editorBeatmap.ControlPointInfo.Groups);
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controlPointGroups.BindCollectionChanged((_, __) => updateTimingGroup());
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beatLength.BindValueChanged(_ => regenerateDisplay(true), true);
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displayLocked.BindValueChanged(locked =>
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{
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if (locked.NewValue)
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lockedOverlay.Show();
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else
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lockedOverlay.Hide();
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}, true);
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}
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private void updateTimingGroup()
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{
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beatLength.UnbindBindings();
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var tcp = selectedGroup.Value?.ControlPoints.OfType<TimingControlPoint>().FirstOrDefault();
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if (tcp == null)
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{
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timingPoint = new TimingControlPoint();
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// During movement of a control point's offset, this clause can be hit momentarily,
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// as moving a control point is implemented by removing it and inserting it at the new time.
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// We don't want to reset the `selectedGroupStartTime` here as we rely on having the
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// last value to update the waveform display below.
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selectedGroupEndTime = beatmap.Value.Track.Length;
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return;
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}
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timingPoint = tcp;
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beatLength.BindTo(timingPoint.BeatLengthBindable);
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double? newStartTime = selectedGroup.Value?.Time;
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double? offsetChange = newStartTime - selectedGroupStartTime;
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var nextGroup = editorBeatmap.ControlPointInfo.TimingPoints
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.SkipWhile(g => g != tcp)
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.Skip(1)
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.FirstOrDefault();
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selectedGroupStartTime = newStartTime ?? 0;
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selectedGroupEndTime = nextGroup?.Time ?? beatmap.Value.Track.Length;
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if (newStartTime.HasValue && offsetChange.HasValue)
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{
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// The offset of the selected point may have changed.
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// This handles the case the user has locked the view and expects the display to update with this change.
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showFromTime(displayedTime + offsetChange.Value, true);
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}
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}
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protected override bool OnHover(HoverEvent e) => true;
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protected override bool OnMouseMove(MouseMoveEvent e)
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{
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if (!displayLocked.Value)
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{
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float trackLength = (float)beatmap.Value.Track.Length;
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int totalBeatsAvailable = (int)(trackLength / timingPoint.BeatLength);
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Scheduler.AddOnce(showFromBeat, (int)(e.MousePosition.X / DrawWidth * totalBeatsAvailable));
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}
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return base.OnMouseMove(e);
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}
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protected override bool OnClick(ClickEvent e)
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{
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displayLocked.Toggle();
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return true;
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}
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protected override void Update()
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{
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base.Update();
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if (!IsHovered && !displayLocked.Value)
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{
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int currentBeat = (int)Math.Floor((editorClock.CurrentTimeAccurate - selectedGroupStartTime) / timingPoint.BeatLength);
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showFromBeat(currentBeat);
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}
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}
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private void showFromBeat(int beatIndex) =>
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showFromTime(selectedGroupStartTime + beatIndex * timingPoint.BeatLength, false);
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private void showFromTime(double time, bool animated)
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{
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if (displayedTime == time)
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return;
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displayedTime = time;
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regenerateDisplay(animated);
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}
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private void regenerateDisplay(bool animated)
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{
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double index = (displayedTime - selectedGroupStartTime) / timingPoint.BeatLength;
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// Chosen as a pretty usable number across all BPMs.
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// Optimally we'd want this to scale with the BPM in question, but performing
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// scaling of the display is both expensive in resampling, and decreases usability
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// (as it is harder to track the waveform when making realtime adjustments).
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const float visible_width = 300;
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float trackLength = (float)beatmap.Value.Track.Length;
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float scale = trackLength / visible_width;
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const int start_offset = total_waveforms / 2;
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// Start displaying from before the current beat
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index -= start_offset;
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foreach (var row in InternalChildren.OfType<WaveformRow>())
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{
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// offset to the required beat index.
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double time = selectedGroupStartTime + index * timingPoint.BeatLength;
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float offset = (float)(time - visible_width / 2) / trackLength * scale;
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row.Alpha = time < selectedGroupStartTime || time > selectedGroupEndTime ? 0.2f : 1;
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row.WaveformOffsetTo(-offset, animated);
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row.WaveformScale = new Vector2(scale, 1);
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row.BeatIndex = (int)Math.Floor(index);
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index++;
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}
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}
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internal class LockedOverlay : CompositeDrawable
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{
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private OsuSpriteText text = null!;
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[BackgroundDependencyLoader]
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private void load(OsuColour colours)
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{
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RelativeSizeAxes = Axes.Both;
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Masking = true;
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CornerRadius = corner_radius;
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BorderColour = colours.Red;
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BorderThickness = 3;
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Alpha = 0;
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InternalChildren = new Drawable[]
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{
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new Box
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{
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AlwaysPresent = true,
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RelativeSizeAxes = Axes.Both,
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Alpha = 0,
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},
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new Container
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{
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Anchor = Anchor.TopRight,
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Origin = Anchor.TopRight,
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AutoSizeAxes = Axes.Both,
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Children = new Drawable[]
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{
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new Box
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{
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Colour = colours.Red,
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RelativeSizeAxes = Axes.Both,
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},
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text = new OsuSpriteText
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{
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Colour = colours.GrayF,
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Text = "Locked",
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Margin = new MarginPadding(5),
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Shadow = false,
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Font = OsuFont.Default.With(size: 12, weight: FontWeight.SemiBold),
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}
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}
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},
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};
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}
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public override void Show()
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{
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this.FadeIn(100, Easing.OutQuint);
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text
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.FadeIn().Then().Delay(600)
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.FadeOut().Then().Delay(600)
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.Loop();
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}
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public override void Hide()
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{
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this.FadeOut(100, Easing.OutQuint);
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}
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}
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internal class WaveformRow : CompositeDrawable
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{
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private readonly bool isMainRow;
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private OsuSpriteText beatIndexText = null!;
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private WaveformGraph waveformGraph = null!;
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[Resolved]
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private OverlayColourProvider colourProvider { get; set; } = null!;
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public WaveformRow(bool isMainRow)
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{
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this.isMainRow = isMainRow;
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}
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[BackgroundDependencyLoader]
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private void load(IBindable<WorkingBeatmap> beatmap)
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{
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InternalChildren = new Drawable[]
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{
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new Box
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{
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Colour = colourProvider.Background3,
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Alpha = isMainRow ? 1 : 0,
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RelativeSizeAxes = Axes.Both,
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},
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waveformGraph = new WaveformGraph
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{
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RelativeSizeAxes = Axes.Both,
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RelativePositionAxes = Axes.Both,
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Waveform = beatmap.Value.Waveform,
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Resolution = 1,
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BaseColour = colourProvider.Colour0,
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LowColour = colourProvider.Colour1,
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MidColour = colourProvider.Colour2,
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HighColour = colourProvider.Colour4,
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},
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beatIndexText = new OsuSpriteText
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{
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Anchor = Anchor.CentreLeft,
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Origin = Anchor.CentreLeft,
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Padding = new MarginPadding(5),
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Colour = colourProvider.Content2
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}
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};
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}
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public int BeatIndex { set => beatIndexText.Text = value.ToString(); }
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public Vector2 WaveformScale { set => waveformGraph.Scale = value; }
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public void WaveformOffsetTo(float value, bool animated) =>
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this.TransformTo(nameof(waveformOffset), value, animated ? 300 : 0, Easing.OutQuint);
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private float waveformOffset
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{
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get => waveformGraph.X;
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set => waveformGraph.X = value;
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}
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}
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}
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}
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