osu/osu.Game/Skinning/SkinnableDrawable.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 System;
using osu.Framework.Graphics;
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using osuTK;
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namespace osu.Game.Skinning
{
public class SkinnableDrawable : SkinnableDrawable<Drawable>
{
public SkinnableDrawable(string name, Func<string, Drawable> defaultImplementation, Func<ISkinSource, bool> allowFallback = null, bool restrictSize = true)
: base(name, defaultImplementation, allowFallback, restrictSize)
{
}
}
public class SkinnableDrawable<T> : SkinReloadableDrawable
where T : Drawable
{
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/// <summary>
/// The displayed component. May or may not be a type-<typeparamref name="T"/> member.
/// </summary>
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protected Drawable Drawable { get; private set; }
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private readonly Func<string, T> createDefault;
private readonly string componentName;
private readonly bool restrictSize;
/// <summary>
///
/// </summary>
/// <param name="name">The namespace-complete resource name for this skinnable element.</param>
/// <param name="defaultImplementation">A function to create the default skin implementation of this element.</param>
/// <param name="allowFallback">A conditional to decide whether to allow fallback to the default implementation if a skinned element is not present.</param>
/// <param name="restrictSize">Whether a user-skin drawable should be limited to the size of our parent.</param>
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public SkinnableDrawable(string name, Func<string, T> defaultImplementation, Func<ISkinSource, bool> allowFallback = null, bool restrictSize = true)
: base(allowFallback)
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{
componentName = name;
createDefault = defaultImplementation;
this.restrictSize = restrictSize;
RelativeSizeAxes = Axes.Both;
}
protected override void SkinChanged(ISkinSource skin, bool allowFallback)
{
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Drawable = skin.GetDrawableComponent(componentName);
if (Drawable != null)
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{
if (restrictSize)
{
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Drawable.RelativeSizeAxes = Axes.Both;
Drawable.Size = Vector2.One;
Drawable.Scale = Vector2.One;
Drawable.FillMode = FillMode.Fit;
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}
}
else if (allowFallback)
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Drawable = createDefault(componentName);
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if (Drawable != null)
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{
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Drawable.Origin = Anchor.Centre;
Drawable.Anchor = Anchor.Centre;
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InternalChild = Drawable;
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}
else
ClearInternal();
}
}
}