1
0
mirror of https://github.com/ppy/osu.git synced 2024-12-26 04:32:55 +08:00
osu-lazer/osu.Game/Screens/Select/Carousel/CarouselItem.cs
2017-12-18 11:57:13 +09:00

63 lines
1.9 KiB
C#

// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
using System;
using System.Collections.Generic;
using osu.Framework.Configuration;
namespace osu.Game.Screens.Select.Carousel
{
public abstract class CarouselItem
{
public readonly BindableBool Filtered = new BindableBool();
public readonly Bindable<CarouselItemState> State = new Bindable<CarouselItemState>(CarouselItemState.NotSelected);
/// <summary>
/// This item is not in a hidden state.
/// </summary>
public bool Visible => State.Value != CarouselItemState.Collapsed && !Filtered;
public virtual List<DrawableCarouselItem> Drawables
{
get
{
var items = new List<DrawableCarouselItem>();
var self = drawableRepresentation.Value;
if (self?.IsPresent == true) items.Add(self);
return items;
}
}
protected CarouselItem()
{
drawableRepresentation = new Lazy<DrawableCarouselItem>(CreateDrawableRepresentation);
Filtered.ValueChanged += v =>
{
if (v && State == CarouselItemState.Selected)
State.Value = CarouselItemState.NotSelected;
};
}
private readonly Lazy<DrawableCarouselItem> drawableRepresentation;
protected abstract DrawableCarouselItem CreateDrawableRepresentation();
public virtual void Filter(FilterCriteria criteria)
{
}
public virtual int CompareTo(FilterCriteria criteria, CarouselItem other) => GetHashCode().CompareTo(other.GetHashCode());
}
public enum CarouselItemState
{
Collapsed,
NotSelected,
Selected,
}
}