BaseList.cs

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using System;
using UnityEngine;
using UnityEngine.UI;
 
public class BaseList : MonoBehaviour
{
    public UIList.BGType bgType;
 
    public Vector2 bgFix;
 
    public Vector2 bgUvFix = Vector2.one;
 
    public UIList.ICallback callbacks;
 
    public UIList.SortMode[] sorts;
 
    public Action onBeforeRedraw;
 
    public Action onAfterRedraw;
 
    public bool useDefaultNoItem = true;
 
    public bool numbering;
 
    protected Transform transNoItem;
 
    public SkinType skinType;
 
    [NonSerialized]
    public RawImage bgGrid;
 
    [NonSerialized]
    public UIList.SortMode sortMode;
 
    [NonSerialized]
    public bool isBuilt;
 
    public virtual int ItemCount => 0;
 
    public virtual int RowCount => 0;
 
    public SkinRootStatic Skin => SkinManager.CurrentSkin;
 
    public virtual void NextSort()
    {
        List(sorts.NextItem(sortMode));
    }
 
    public virtual void List()
    {
    }
 
    public virtual void List(UIList.SortMode sort)
    {
    }
 
    public virtual void Redraw()
    {
    }
 
    public virtual void Clear()
    {
    }
 
    public virtual void Add(object o)
    {
    }
 
    public virtual void AddDynamic(object item)
    {
    }
 
    public virtual void RemoveDynamic(object item)
    {
    }
 
    public virtual bool Contains(object item)
    {
        return false;
    }
 
    public virtual void OnMove(object o, object select = null)
    {
    }
 
    public void RefreshNoItem()
    {
        if (!transNoItem)
        {
            if (useDefaultNoItem)
            {
                UIScrollView[] componentsInParent = base.transform.GetComponentsInParent<UIScrollView>(includeInactive: true);
                transNoItem = Util.Instantiate(ResourceCache.Load<Transform>("NoItem"), (componentsInParent.Length != 0) ? componentsInParent[0].transform : base.transform.parent);
            }
            else
            {
                transNoItem = base.transform.Find("NoItem");
            }
        }
        if ((bool)transNoItem)
        {
            transNoItem.SetActive(ItemCount == 0);
        }
    }
 
    public void RefreshBGGrid()
    {
        if (bgType == UIList.BGType.none)
        {
            return;
        }
        int num = RowCount;
        LayoutGroup component = base.transform.GetComponent<LayoutGroup>();
        GridLayoutGroup gridLayoutGroup = component as GridLayoutGroup;
        bool flag = bgType == UIList.BGType.stripe;
        if (!bgGrid)
        {
            bgGrid = Util.Instantiate<RawImage>("UI/Element/List/BGList " + bgType, base.transform);
        }
        bgGrid.transform.SetAsFirstSibling();
        if ((bool)gridLayoutGroup && gridLayoutGroup.constraint == GridLayoutGroup.Constraint.FixedColumnCount)
        {
            num = Mathf.CeilToInt((float)num / (float)gridLayoutGroup.constraintCount);
        }
        float height = num;
        if (flag)
        {
            height = (float)num * 0.5f * (float)((num % 2 != 0) ? 1 : (-1));
        }
        float num2 = component?.padding.top ?? 0;
        float num3 = (flag ? 0f : 1f) + bgFix.y;
        float num4 = 0f;
        num4 = (component as VerticalLayoutGroup)?.spacing ?? gridLayoutGroup?.spacing.y ?? 0f;
        if (bgType == UIList.BGType.grid)
        {
            bgGrid.Rect().sizeDelta = new Vector2(0f, 0f);
            bgGrid.Rect().anchoredPosition = new Vector2(0f, 0f);
        }
        else
        {
            bgGrid.Rect().sizeDelta = new Vector2(-8f, 0f - num2 + num4);
            bgGrid.Rect().anchoredPosition = new Vector2(0f, (0f - num2) * 0.5f - num3);
        }
        float width = 1f;
        float num5 = base.transform.Rect().rect.width;
        if ((bool)gridLayoutGroup && gridLayoutGroup.constraint == GridLayoutGroup.Constraint.FixedColumnCount)
        {
            num5 = (float)gridLayoutGroup.constraintCount * (gridLayoutGroup.cellSize.x + gridLayoutGroup.spacing.x);
        }
        if (!flag)
        {
            int num6 = 64;
            if (bgType == UIList.BGType.dot)
            {
                num6 = 60;
            }
            width = num5 / (float)num6 * bgUvFix.x;
        }
        if (bgType == UIList.BGType.grid && gridLayoutGroup.constraint == GridLayoutGroup.Constraint.FixedColumnCount)
        {
            width = gridLayoutGroup.constraintCount;
        }
        bgGrid.uvRect = new Rect(0f, 0f, width, height);
        bgGrid.SetActive(ItemCount > 0);
    }
}