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osu-lazer/osu.Game/Skinning/ISerialisableDrawable.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;
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using System.Globalization;
using osu.Framework.Bindables;
using osu.Framework.Extensions.TypeExtensions;
using osu.Framework.Graphics;
using osu.Game.Configuration;
namespace osu.Game.Skinning
{
/// <summary>
/// A drawable which is intended to be serialised to <see cref="SerialisedDrawableInfo"/>.
/// </summary>
/// <remarks>
/// This is currently used exclusively for serialisation to a skin, and leaned on heavily to allow placement and customisation in the skin layout editor.
/// That said, it is intended to be flexible enough to potentially be used in other places we want to serialise drawables in the future.
///
/// Attaching this interface to any <see cref="IDrawable"/> will make it serialisable via <see cref="SerialisableDrawableExtensions.CreateSerialisedInfo"/>.
/// Adding <see cref="SettingSourceAttribute"/> annotated bindables will also allow serialising settings automatically.
/// </remarks>
public interface ISerialisableDrawable : IDrawable
{
/// <summary>
/// Whether this component should be editable by an end user.
/// </summary>
bool IsEditable => true;
/// <summary>
/// In the context of the skin layout editor, whether this <see cref="ISerialisableDrawable"/> has a permanent anchor defined.
/// If <see langword="false"/>, this <see cref="ISerialisableDrawable"/>'s <see cref="Drawable.Anchor"/> is automatically determined by proximity,
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/// If <see langword="true"/>, a fixed anchor point has been defined.
/// </summary>
bool UsesFixedAnchor { get; set; }
void CopyAdjustedSetting(IBindable target, object source)
{
if (source is IBindable sourceBindable)
{
// copy including transfer of default values.
target.BindTo(sourceBindable);
target.UnbindFrom(sourceBindable);
}
else
{
if (!(target is IParseable parseable))
throw new InvalidOperationException($"Bindable type {target.GetType().ReadableName()} is not {nameof(IParseable)}.");
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parseable.Parse(source, CultureInfo.InvariantCulture);
}
}
}
}