public override Edit Reverse()
{
switch (action)
{
case ListEditAction.ChangeItem:
for (int i = 0; i < items.Count; i++)
{
T backup = items[i];
items[i] = list[i + startIndex];
list[i + startIndex] = backup;
}
break;
case ListEditAction.AddItem:
list.RemoveRange(startIndex, items.Count);
action = ListEditAction.RemoveItem;
break;
case ListEditAction.RemoveItem:
list.InsertRange(startIndex, items);
action = ListEditAction.AddItem;
break;
}
return(this);
}
public ListRangeEdit(ListEditAction action, List <T> list, List <T> items, int startIndex)
{
this.action = action;
this.list = list;
this.items = items;
this.startIndex = startIndex;
}
public IListEdit(ListEditAction action, IList <T> list, T item, int index)
{
this.action = action;
this.list = list;
this.item = item;
this.index = index;
}
public override Edit Reverse()
{
switch (action)
{
case ListEditAction.ChangeItem:
T backup = list[index];
list[index] = item;
item = backup;
break;
case ListEditAction.AddItem:
list.RemoveAt(index);
action = ListEditAction.RemoveItem;
break;
case ListEditAction.RemoveItem:
list.Insert(index, item);
action = ListEditAction.AddItem;
break;
}
return(this);
}