// 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.Sprites; namespace osu.Game.Graphics.UserInterface { /// <summary> /// An <see cref="OsuMenuItem"/> with three possible states. /// </summary> public class TernaryStateMenuItem : StatefulMenuItem<TernaryState> { /// <summary> /// Creates a new <see cref="TernaryStateMenuItem"/>. /// </summary> /// <param name="text">The text to display.</param> /// <param name="type">The type of action which this <see cref="TernaryStateMenuItem"/> performs.</param> /// <param name="action">A delegate to be invoked when this <see cref="TernaryStateMenuItem"/> is pressed.</param> public TernaryStateMenuItem(string text, MenuItemType type = MenuItemType.Standard, Action<TernaryState> action = null) : this(text, getNextState, type, action) { } /// <summary> /// Creates a new <see cref="TernaryStateMenuItem"/>. /// </summary> /// <param name="text">The text to display.</param> /// <param name="changeStateFunc">A function that mutates a state to another state after this <see cref="TernaryStateMenuItem"/> is pressed.</param> /// <param name="type">The type of action which this <see cref="TernaryStateMenuItem"/> performs.</param> /// <param name="action">A delegate to be invoked when this <see cref="TernaryStateMenuItem"/> is pressed.</param> protected TernaryStateMenuItem(string text, Func<TernaryState, TernaryState> changeStateFunc, MenuItemType type, Action<TernaryState> action) : base(text, changeStateFunc, type, action) { } public override IconUsage? GetIconForState(TernaryState state) { switch (state) { case TernaryState.Indeterminate: return FontAwesome.Solid.DotCircle; case TernaryState.True: return FontAwesome.Solid.Check; } return null; } private static TernaryState getNextState(TernaryState state) { switch (state) { case TernaryState.False: return TernaryState.True; case TernaryState.Indeterminate: return TernaryState.True; case TernaryState.True: return TernaryState.False; default: throw new ArgumentOutOfRangeException(nameof(state), state, null); } } } }