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144 lines
5.2 KiB
C#
144 lines
5.2 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 System.Collections.Generic;
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using System.Linq;
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using System.Reflection;
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using JetBrains.Annotations;
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using osu.Framework.Bindables;
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using osu.Framework.Graphics;
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using osu.Game.Overlays.Settings;
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namespace osu.Game.Configuration
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{
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/// <summary>
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/// An attribute to mark a bindable as being exposed to the user via settings controls.
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/// Can be used in conjunction with <see cref="SettingSourceExtensions.CreateSettingsControls"/> to automatically create UI controls.
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/// </summary>
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/// <remarks>
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/// All controls with <see cref="OrderPosition"/> set will be placed first in ascending order.
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/// All controls with no <see cref="OrderPosition"/> will come afterward in default order.
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/// </remarks>
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[MeansImplicitUse]
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[AttributeUsage(AttributeTargets.Property)]
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public class SettingSourceAttribute : Attribute
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{
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public string Label { get; }
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public string Description { get; }
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public int? OrderPosition { get; }
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public SettingSourceAttribute(string label, string description = null)
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{
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Label = label ?? string.Empty;
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Description = description ?? string.Empty;
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}
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public SettingSourceAttribute(string label, string description, int orderPosition)
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: this(label, description)
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{
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OrderPosition = orderPosition;
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}
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}
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public static class SettingSourceExtensions
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{
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public static IEnumerable<Drawable> CreateSettingsControls(this object obj)
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{
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foreach (var (attr, property) in obj.GetOrderedSettingsSourceProperties())
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{
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object value = property.GetValue(obj);
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switch (value)
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{
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case BindableNumber<float> bNumber:
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yield return new SettingsSlider<float>
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{
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LabelText = attr.Label,
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Bindable = bNumber,
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KeyboardStep = 0.1f,
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};
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break;
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case BindableNumber<double> bNumber:
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yield return new SettingsSlider<double>
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{
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LabelText = attr.Label,
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Bindable = bNumber,
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KeyboardStep = 0.1f,
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};
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break;
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case BindableNumber<int> bNumber:
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yield return new SettingsSlider<int>
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{
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LabelText = attr.Label,
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Bindable = bNumber
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};
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break;
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case Bindable<bool> bBool:
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yield return new SettingsCheckbox
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{
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LabelText = attr.Label,
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Bindable = bBool
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};
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break;
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case Bindable<string> bString:
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yield return new SettingsTextBox
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{
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LabelText = attr.Label,
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Bindable = bString
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};
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break;
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case IBindable bindable:
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var dropdownType = typeof(SettingsEnumDropdown<>).MakeGenericType(bindable.GetType().GetGenericArguments()[0]);
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var dropdown = (Drawable)Activator.CreateInstance(dropdownType);
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dropdownType.GetProperty(nameof(SettingsDropdown<object>.LabelText))?.SetValue(dropdown, attr.Label);
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dropdownType.GetProperty(nameof(SettingsDropdown<object>.Bindable))?.SetValue(dropdown, bindable);
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yield return dropdown;
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break;
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default:
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throw new InvalidOperationException($"{nameof(SettingSourceAttribute)} was attached to an unsupported type ({value})");
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}
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}
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}
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public static IEnumerable<(SettingSourceAttribute, PropertyInfo)> GetSettingsSourceProperties(this object obj)
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{
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foreach (var property in obj.GetType().GetProperties(BindingFlags.GetProperty | BindingFlags.Public | BindingFlags.Instance))
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{
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var attr = property.GetCustomAttribute<SettingSourceAttribute>(true);
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if (attr == null)
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continue;
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yield return (attr, property);
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}
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}
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public static IEnumerable<(SettingSourceAttribute, PropertyInfo)> GetOrderedSettingsSourceProperties(this object obj)
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{
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var original = obj.GetSettingsSourceProperties();
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var orderedRelative = original.Where(attr => attr.Item1.OrderPosition != null).OrderBy(attr => attr.Item1.OrderPosition);
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var unordered = original.Except(orderedRelative);
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return orderedRelative.Concat(unordered);
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}
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}
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}
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