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osu-lazer/osu.Game/Screens/Ranking/ScorePanelTrackingContainer.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.
using System;
using osu.Framework.Graphics.Containers;
namespace osu.Game.Screens.Ranking
{
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/// <summary>
/// A <see cref="CompositeDrawable"/> which tracks the size of a <see cref="ScorePanel"/>, to which the <see cref="ScorePanel"/> can be added or removed.
/// </summary>
public class ScorePanelTrackingContainer : CompositeDrawable
{
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/// <summary>
/// The <see cref="ScorePanel"/> that created this <see cref="ScorePanelTrackingContainer"/>.
/// </summary>
public readonly ScorePanel Panel;
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internal ScorePanelTrackingContainer(ScorePanel panel)
{
Panel = panel;
Attach();
}
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/// <summary>
/// Detaches the <see cref="ScorePanel"/> from this <see cref="ScorePanelTrackingContainer"/>, removing it as a child.
/// This <see cref="ScorePanelTrackingContainer"/> will continue tracking any size changes.
/// </summary>
/// <exception cref="InvalidOperationException">If the <see cref="ScorePanel"/> is already detached.</exception>
public void Detach()
{
if (InternalChildren.Count == 0)
throw new InvalidOperationException("Score panel container is not attached.");
RemoveInternal(Panel);
}
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/// <summary>
/// Attaches the <see cref="ScorePanel"/> to this <see cref="ScorePanelTrackingContainer"/>, adding it as a child.
/// </summary>
/// <exception cref="InvalidOperationException">If the <see cref="ScorePanel"/> is already attached.</exception>
public void Attach()
{
if (InternalChildren.Count > 0)
throw new InvalidOperationException("Score panel container is already attached.");
AddInternal(Panel);
}
}
}