72 lines
2.5 KiB
C#
72 lines
2.5 KiB
C#
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/// Credit setchi (https://github.com/setchi)
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/// Sourced from - https://github.com/setchi/FancyScrollView
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using System.Linq;
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namespace UnityEngine.UI.Extensions
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{
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/// <summary>
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/// 複数の <see cref="FancyCell{TItemData, TContext}"/> を持つセルグループ実装するための抽象基底クラス.
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/// </summary>
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/// <typeparam name="TItemData">アイテムのデータ型.</typeparam>
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/// <typeparam name="TContext"><see cref="FancyCell{TItemData, TContext}.Context"/> の型.</typeparam>
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public abstract class FancyCellGroup<TItemData, TContext> : FancyCell<TItemData[], TContext>
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where TContext : class, IFancyCellGroupContext, new()
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{
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/// <summary>
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/// このグループで表示するセルの配列.
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/// </summary>
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protected virtual FancyCell<TItemData, TContext>[] Cells { get; private set; }
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/// <summary>
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/// このグループで表示するセルの配列をインスタンス化します.
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/// </summary>
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/// <returns>このグループで表示するセルの配列.</returns>
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protected virtual FancyCell<TItemData, TContext>[] InstantiateCells()
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{
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return Enumerable.Range(0, Context.GetGroupCount())
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.Select(_ => Instantiate(Context.CellTemplate, transform))
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.Select(x => x.GetComponent<FancyCell<TItemData, TContext>>())
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.ToArray();
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}
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/// <inheritdoc/>
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public override void Initialize()
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{
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Cells = InstantiateCells();
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Debug.Assert(Cells.Length == Context.GetGroupCount());
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for (var i = 0; i < Cells.Length; i++)
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{
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Cells[i].SetContext(Context);
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Cells[i].Initialize();
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}
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}
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/// <inheritdoc/>
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public override void UpdateContent(TItemData[] contents)
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{
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var firstCellIndex = Index * Context.GetGroupCount();
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for (var i = 0; i < Cells.Length; i++)
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{
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Cells[i].Index = i + firstCellIndex;
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Cells[i].SetVisible(i < contents.Length);
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if (Cells[i].IsVisible)
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{
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Cells[i].UpdateContent(contents[i]);
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}
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}
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}
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/// <inheritdoc/>
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public override void UpdatePosition(float position)
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{
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for (var i = 0; i < Cells.Length; i++)
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{
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Cells[i].UpdatePosition(position);
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}
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}
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}
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}
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