using System;
using System.Collections.Generic;
using System.Text;
namespace System.Collections.Generic
{
public class ItemAtEventArgs : EventArgs
{
public readonly T Item;
public readonly int Index;
public ItemAtEventArgs(T item, int index) { Item = item; Index = index; }
public override string ToString()
{
return String.Format("(ItemAtEventArgs {0} '{1}')", Index, Item);
}
}
public class ItemRangeEventArgs : EventArgs
{
public readonly T[] Items;
public readonly int Index, Count;
public ItemRangeEventArgs(T[] items, int index, int count) { Items = items; Index = index; Count = count; }
public override string ToString()
{
return String.Format("(ItemRangeEventArgs {0} Cnt: {2})", Index, Items, Count);
}
}
public class EventedList : List
{
public EventedList() : base() { }
public EventedList(int capacity) : base(capacity) { }
public EventedList(IEnumerable collection) : base(collection) { }
public event ItemInsertedHandler ItemInserted;
public event ItemRemovedHandler ItemRemoved;
public event ItemRangeInsertedHandler ItemRangeInserted;
public event ItemRangeRemovedHandler ItemRangeRemoved;
public delegate void ItemInsertedHandler(object sender, ItemAtEventArgs e);
public delegate void ItemRemovedHandler(object sender, ItemAtEventArgs e);
public delegate void ItemRangeInsertedHandler(object sender, ItemRangeEventArgs e);
public delegate void ItemRangeRemovedHandler(object sender, ItemRangeEventArgs e);
protected virtual void OnItemRemoved(ItemAtEventArgs e)
{
ItemRemovedHandler handler1 = this.ItemRemoved;
if (handler1 != null)
handler1(this, e);
}
protected virtual void OnItemInserted(ItemAtEventArgs e)
{
ItemInsertedHandler handler1 = this.ItemInserted;
if (handler1 != null)
handler1(this, e);
}
protected virtual void OnItemRangeRemoved(ItemRangeEventArgs e)
{
ItemRangeRemovedHandler handler1 = this.ItemRangeRemoved;
if (handler1 != null)
handler1(this, e);
}
protected virtual void OnItemRangeInserted(ItemRangeEventArgs e)
{
ItemRangeInsertedHandler handler1 = this.ItemRangeInserted;
if (handler1 != null)
handler1(this, e);
}
public new void Add(T item)
{
base.Add(item);
OnItemInserted(new ItemAtEventArgs(item, base.Count - 1));
}
public new void AddRange(IEnumerable collection)
{
this.InsertRange(base.Count, collection);
}
public new void Insert(int index, T item)
{
base.Insert(index, item);
OnItemInserted(new ItemAtEventArgs(item, index));
}
public new void InsertRange(int index, IEnumerable collection)
{
int count = base.Count;
base.InsertRange(index, collection);
count = base.Count - count;
OnItemRangeInserted(new ItemRangeEventArgs(base.GetRange(index, count).ToArray(), index, count));
}
public new bool Remove(T item)
{
int num1 = base.IndexOf(item);
if (num1 >= 0)
{
this.RemoveAt(num1);
return true;
}
return false;
}
public new void RemoveAt(int index)
{
T item = base[index];
base.RemoveAt(index);
OnItemRemoved(new ItemAtEventArgs(item, index));
}
public new void RemoveRange(int index, int count)
{
List rc = base.GetRange(index, count);
base.RemoveRange(index, count);
OnItemRangeRemoved(new ItemRangeEventArgs(rc.ToArray(), index, count));
}
}
}