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osu-lazer/osu.Game/Screens/Menu/FlowContainerWithOrigin.cs

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//Copyright (c) 2007-2016 ppy Pty Ltd <contact@ppy.sh>.
//Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
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using OpenTK;
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using System.Collections.Generic;
using System.Linq;
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namespace osu.Game.Screens.Menu
{
/// <summary>
/// A flow container with an origin based on one of its contained drawables.
/// </summary>
public class FlowContainerWithOrigin : FlowContainer
{
/// <summary>
/// A target drawable which this flowcontainer should be centered around.
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/// This target should be a direct child of this FlowContainer.
/// </summary>
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public Drawable CentreTarget;
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protected override IComparer<Drawable> DepthComparer => new ReverseCreationOrderDepthComparer();
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protected override IEnumerable<Drawable> SortedChildren => base.SortedChildren.Reverse();
public override Anchor Origin => Anchor.Custom;
public override Vector2 OriginPosition
{
get
{
if (CentreTarget == null)
return base.OriginPosition;
return CentreTarget.DrawPosition + CentreTarget.DrawSize / 2;
}
}
}
}