osu/osu.Game/Collections/BeatmapCollection.cs

48 lines
1.4 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.
using System;
using osu.Framework.Bindables;
using osu.Game.Beatmaps;
namespace osu.Game.Collections
{
/// <summary>
/// A collection of beatmaps grouped by a name.
/// </summary>
public class BeatmapCollection
{
/// <summary>
/// Invoked whenever any change occurs on this <see cref="BeatmapCollection"/>.
/// </summary>
public event Action Changed;
/// <summary>
/// The collection's name.
/// </summary>
public readonly Bindable<string> Name = new Bindable<string>();
/// <summary>
/// The beatmaps contained by the collection.
/// </summary>
public readonly BindableList<IBeatmapInfo> Beatmaps = new BindableList<IBeatmapInfo>();
/// <summary>
/// The date when this collection was last modified.
/// </summary>
public DateTimeOffset LastModifyDate { get; private set; } = DateTimeOffset.UtcNow;
public BeatmapCollection()
{
Beatmaps.CollectionChanged += (_, __) => onChange();
Name.ValueChanged += _ => onChange();
}
private void onChange()
{
LastModifyDate = DateTimeOffset.Now;
Changed?.Invoke();
}
}
}