mirror of https://github.com/ppy/osu
68 lines
2.1 KiB
C#
68 lines
2.1 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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using osu.Framework.Allocation;
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using osu.Framework.Audio;
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using osu.Framework.Bindables;
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using osu.Framework.Graphics;
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using osu.Framework.Graphics.Shapes;
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using osu.Game.Graphics.Containers;
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using osuTK.Graphics;
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namespace osu.Game.Overlays
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{
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/// <summary>
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/// An overlay which will display a black screen that dims over a period before confirming an exit action.
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/// Action is BYO (derived class will need to call <see cref="HoldToConfirmContainer.BeginConfirm"/> and <see cref="HoldToConfirmContainer.AbortConfirm"/> from a user event).
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/// </summary>
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public abstract class HoldToConfirmOverlay : HoldToConfirmContainer
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{
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private Box overlay;
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private readonly BindableDouble audioVolume = new BindableDouble(1);
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[Resolved]
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private AudioManager audio { get; set; }
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private readonly float finalFillAlpha;
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protected HoldToConfirmOverlay(float finalFillAlpha = 1)
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{
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this.finalFillAlpha = finalFillAlpha;
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}
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[BackgroundDependencyLoader]
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private void load()
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{
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RelativeSizeAxes = Axes.Both;
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AlwaysPresent = true;
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Children = new Drawable[]
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{
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overlay = new Box
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{
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Alpha = 0,
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Colour = Color4.Black,
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RelativeSizeAxes = Axes.Both,
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}
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};
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Progress.ValueChanged += p =>
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{
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double target = p.NewValue * finalFillAlpha;
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audioVolume.Value = 1 - target;
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overlay.Alpha = (float)target;
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};
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audio.Tracks.AddAdjustment(AdjustableProperty.Volume, audioVolume);
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}
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protected override void Dispose(bool isDisposing)
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{
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audio?.Tracks.RemoveAdjustment(AdjustableProperty.Volume, audioVolume);
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base.Dispose(isDisposing);
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}
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}
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}
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