81 lines
2.9 KiB
C#
81 lines
2.9 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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/// <see cref="FancyGridView{TItemData, TContext}"/> の行を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="FancyScrollViewCell{TItemData, TContext}.Context"/> の型.</typeparam>
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public abstract class FancyGridViewRow<TItemData, TContext> : FancyScrollRectCell<TItemData[], TContext>
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where TContext : class, IFancyScrollRectContext, IFancyGridViewContext, new()
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{
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/// <summary>
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/// この行で表示するセルの配列.
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/// </summary>
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protected virtual FancyScrollViewCell<TItemData, TContext>[] Cells { get; private set; }
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/// <summary>
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/// この行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>この行で表示するセルの配列.</returns>
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protected virtual FancyScrollViewCell<TItemData, TContext>[] InstantiateCells()
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{
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return Enumerable.Range(0, Context.GetColumnCount())
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.Select(_ => Instantiate(Context.CellTemplate, transform))
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.Select(x => x.GetComponent<FancyScrollViewCell<TItemData, TContext>>())
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.ToArray();
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}
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/// <inheritdoc/>
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public override void SetupContext(TContext context)
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{
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base.SetupContext(context);
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Cells = InstantiateCells();
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Debug.Assert(Cells.Length == Context.GetColumnCount());
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for (var i = 0; i < Cells.Length; i++)
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{
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Cells[i].SetupContext(context);
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}
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}
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/// <inheritdoc/>
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public override void UpdateContent(TItemData[] rowContents)
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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].Index = i + Index * Context.GetColumnCount();
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Cells[i].SetVisible(i < rowContents.Length);
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if (Cells[i].IsVisible)
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{
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Cells[i].UpdateContent(rowContents[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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base.UpdatePosition(position);
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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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/// <inheritdoc/>
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protected override void UpdatePosition(float position, float viewportPosition)
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{
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transform.localPosition = Context.ScrollDirection == ScrollDirection.Horizontal
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? new Vector2(viewportPosition, transform.localPosition.y)
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: new Vector2(transform.localPosition.x, viewportPosition);
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}
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}
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}
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