using UnityEngine;
using System.Collections;
using System.Collections.Generic;
using System.Text;
using System;

namespace Thousandto.Plugins.Common
{
    /// <summary>
    /// Item的转换类，用来保存Item的各个组件和对组件填充数据
    /// ItemHolder会当做参数传给逻辑层，所以可被继承，用于扩展
    /// </summary>
    public class ItemHolder
    {
        /// <summary>
        /// 当Item添加到滑动列表时触发
        /// </summary>
        public Action<ItemHolder> OnItemShow { get; set; }

        /// <summary>
        /// 当Item被复用前，Item中有些元素在复用时可能不需要，可以在这个回调中提前做处理
        /// 比如聊天Item，里面有表情，复用时表情需要去掉
        /// </summary>
        public Action<ItemHolder> OnItemReUseBefore { get; set; }

        /// <summary>
        /// 是否新建的Item，不是复用的
        /// </summary>
        public bool UseNew { get; set; }

        /// <summary>
        /// 当前Holder对应的Transform
        /// </summary>
        public Transform Object { get; set; }

        public float Param { get; set; }

        public string ReciveTime { get; set; }

        /// <summary>
        /// 当前Item的尺寸
        /// </summary>
        public Vector2 Size { get; set; }

        /// <summary>
        /// item的序号，对应数据列表的序号
        /// </summary>
        public int Index;

        /// <summary>
        /// item的上下沿Y方向的坐标，用于判断是否从裁剪窗口移除掉
        /// </summary>
        public Vector2 TopAndBottom;

        /// <summary>
        /// 动画效果
        /// </summary>
        public BaseEffect AnimEffect;

        /// <summary>
        /// Item的边界
        /// </summary>
        public Bounds Bounds
        {
            get
            {
                return NGUIMath.CalculateRelativeWidgetBounds(Object, Object);
            }
        }
    }
}