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osu-lazer/osu.Game/Overlays/Toolbar/ToolbarOverlayToggleButton.cs

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// 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.
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using osu.Framework.Extensions.Color4Extensions;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics.Shapes;
using osu.Game.Graphics;
namespace osu.Game.Overlays.Toolbar
{
public class ToolbarOverlayToggleButton : ToolbarButton
{
private readonly Box stateBackground;
private OverlayContainer stateContainer;
public OverlayContainer StateContainer
{
get => stateContainer;
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set
{
stateContainer = value;
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if (stateContainer != null)
{
Action = stateContainer.ToggleVisibility;
stateContainer.StateChanged += stateChanged;
}
}
}
public ToolbarOverlayToggleButton()
{
Add(stateBackground = new Box
{
RelativeSizeAxes = Axes.Both,
Colour = OsuColour.Gray(150).Opacity(180),
Blending = BlendingMode.Additive,
Depth = 2,
Alpha = 0,
});
}
protected override void Dispose(bool isDisposing)
{
base.Dispose(isDisposing);
if (stateContainer != null)
stateContainer.StateChanged -= stateChanged;
}
private void stateChanged(Visibility state)
{
switch (state)
{
case Visibility.Hidden:
stateBackground.FadeOut(200);
break;
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case Visibility.Visible:
stateBackground.FadeIn(200);
break;
}
}
}
}