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osu-lazer/osu.Game/Overlays/BeatmapSet/Buttons/PreviewButton.cs
2021-01-11 01:56:09 +09:00

103 lines
3.1 KiB
C#

// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.
using osu.Framework.Allocation;
using osu.Framework.Bindables;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics.Shapes;
using osu.Framework.Input.Events;
using osu.Game.Audio;
using osu.Game.Beatmaps;
using osu.Game.Graphics;
using osu.Game.Graphics.Containers;
using osu.Game.Overlays.BeatmapListing.Panels;
using osuTK;
namespace osu.Game.Overlays.BeatmapSet.Buttons
{
public class PreviewButton : OsuClickableContainer
{
private readonly Box background, progress;
private readonly PlayButton playButton;
private PreviewTrack preview => playButton.Preview;
public IBindable<bool> Playing => playButton.Playing;
public BeatmapSetInfo BeatmapSet
{
get => playButton.BeatmapSet;
set => playButton.BeatmapSet = value;
}
public PreviewButton()
{
Height = 42;
Children = new Drawable[]
{
background = new Box
{
RelativeSizeAxes = Axes.Both,
Alpha = 0.5f
},
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 = () => playButton.Click();
Playing.ValueChanged += playing => progress.FadeTo(playing.NewValue ? 1 : 0, 100);
}
[BackgroundDependencyLoader]
private void load(OsuColour colours, OverlayColourProvider colourProvider)
{
progress.Colour = colours.Yellow;
background.Colour = colourProvider.Background6;
}
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 bool OnHover(HoverEvent e)
{
background.FadeTo(0.75f, 80);
return base.OnHover(e);
}
protected override void OnHoverLost(HoverLostEvent e)
{
background.FadeTo(0.5f, 80);
base.OnHoverLost(e);
}
}
}