mirror of https://github.com/ppy/osu
107 lines
3.4 KiB
C#
107 lines
3.4 KiB
C#
// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
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// See the LICENCE file in the repository root for full licence text.
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using System;
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using osu.Framework.Allocation;
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using osu.Framework.Audio.Sample;
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using osu.Framework.Bindables;
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using osu.Framework.Graphics;
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using osu.Framework.Graphics.Containers;
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using osu.Framework.Graphics.Textures;
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using osu.Game.Audio;
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namespace osu.Game.Skinning
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{
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/// <summary>
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/// A container which adds a local <see cref="ISkinSource"/> to the hierarchy.
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/// </summary>
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public class SkinProvidingContainer : Container, ISkinSource
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{
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public event Action SourceChanged;
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private readonly ISkin skin;
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private ISkinSource fallbackSource;
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protected virtual bool AllowDrawableLookup(ISkinComponent component) => true;
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protected virtual bool AllowTextureLookup(string componentName) => true;
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protected virtual bool AllowSampleLookup(ISampleInfo componentName) => true;
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protected virtual bool AllowConfigurationLookup => true;
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public SkinProvidingContainer(ISkin skin)
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{
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this.skin = skin;
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RelativeSizeAxes = Axes.Both;
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}
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public Drawable GetDrawableComponent(ISkinComponent component)
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{
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Drawable sourceDrawable;
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if (AllowDrawableLookup(component) && (sourceDrawable = skin?.GetDrawableComponent(component)) != null)
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return sourceDrawable;
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return fallbackSource?.GetDrawableComponent(component);
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}
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public Texture GetTexture(string componentName)
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{
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Texture sourceTexture;
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if (AllowTextureLookup(componentName) && (sourceTexture = skin?.GetTexture(componentName)) != null)
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return sourceTexture;
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return fallbackSource?.GetTexture(componentName);
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}
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public SampleChannel GetSample(ISampleInfo sampleInfo)
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{
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SampleChannel sourceChannel;
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if (AllowSampleLookup(sampleInfo) && (sourceChannel = skin?.GetSample(sampleInfo)) != null)
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return sourceChannel;
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return fallbackSource?.GetSample(sampleInfo);
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}
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public IBindable<TValue> GetConfig<TLookup, TValue>(TLookup lookup)
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{
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if (AllowConfigurationLookup && skin != null)
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{
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var bindable = skin.GetConfig<TLookup, TValue>(lookup);
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if (bindable != null)
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return bindable;
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}
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return fallbackSource?.GetConfig<TLookup, TValue>(lookup);
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}
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protected virtual void TriggerSourceChanged() => SourceChanged?.Invoke();
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protected override IReadOnlyDependencyContainer CreateChildDependencies(IReadOnlyDependencyContainer parent)
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{
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var dependencies = new DependencyContainer(base.CreateChildDependencies(parent));
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fallbackSource = dependencies.Get<ISkinSource>();
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if (fallbackSource != null)
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fallbackSource.SourceChanged += TriggerSourceChanged;
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dependencies.CacheAs<ISkinSource>(this);
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return dependencies;
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}
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protected override void Dispose(bool isDisposing)
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{
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// Must be done before base.Dispose()
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SourceChanged = null;
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base.Dispose(isDisposing);
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if (fallbackSource != null)
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fallbackSource.SourceChanged -= TriggerSourceChanged;
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}
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}
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}
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