osu/osu.Game/Graphics/UserInterface/TernaryStateToggleMenuItem.cs

45 lines
1.6 KiB
C#

// 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.
#nullable disable
using System;
namespace osu.Game.Graphics.UserInterface
{
/// <summary>
/// A ternary state menu item which toggles the state of this item <c>false</c> if clicked when <c>true</c>.
/// </summary>
public class TernaryStateToggleMenuItem : TernaryStateMenuItem
{
/// <summary>
/// Creates a new <see cref="TernaryStateToggleMenuItem"/>.
/// </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 TernaryStateToggleMenuItem(string text, MenuItemType type = MenuItemType.Standard, Action<TernaryState> action = null)
: base(text, getNextState, type, action)
{
}
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);
}
}
}
}