using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using CPF.ReoGrid.Main;

namespace CPF.ReoGrid
{
	public class WorksheetCollection : IList<Worksheet>, ICollection<Worksheet>, IEnumerable<Worksheet>, IEnumerable
	{
		internal WorksheetCollection(Workbook workbook)
		{
			this.adapter = workbook.controlAdapter;
			this.workbook = workbook;
		}

		public Worksheet Create(string name = null)
		{
			return this.workbook.CreateWorksheet(name);
		}

		public void Add(Worksheet sheet)
		{
			this.workbook.InsertWorksheet(this.workbook.worksheets.Count, sheet);
		}

		public void Insert(int index, Worksheet sheet)
		{
			this.workbook.InsertWorksheet(index, sheet);
		}

		public void Clear()
		{
			this.workbook.ClearWorksheets();
		}

		public bool Contains(Worksheet sheet)
		{
			return this.workbook.worksheets.Contains(sheet);
		}

		public int Count
		{
			get
			{
				return this.workbook.worksheets.Count;
			}
		}

		public bool IsReadOnly
		{
			get
			{
				return this.workbook.Readonly;
			}
		}

		public bool Remove(Worksheet sheet)
		{
			return this.workbook.RemoveWorksheet(sheet);
		}

		public IEnumerator<Worksheet> GetEnumerator()
		{
			return this.workbook.worksheets.GetEnumerator();
		}

		IEnumerator IEnumerable.GetEnumerator()
		{
			return this.workbook.worksheets.GetEnumerator();
		}

		public Worksheet this[int index]
		{
			get
			{
				bool flag = index < 0 || index >= this.workbook.worksheets.Count;
				if (flag)
				{
					throw new ArgumentOutOfRangeException("index");
				}
				return this.workbook.worksheets[index];
			}
			set
			{
				bool flag = index < 0 || index >= this.workbook.worksheets.Count;
				if (flag)
				{
					throw new ArgumentOutOfRangeException("index");
				}
				this.workbook.worksheets[index] = value;
			}
		}

		public Worksheet this[string name]
		{
			get
			{
				return this.workbook.worksheets.FirstOrDefault((Worksheet s) => string.Compare(s.Name, name, true) == 0);
			}
		}

		public int IndexOf(Worksheet sheet)
		{
			return this.workbook.GetWorksheetIndex(sheet);
		}

		public void RemoveAt(int index)
		{
			this.workbook.RemoveWorksheet(index);
		}

		public void CopyTo(Worksheet[] array, int arrayIndex)
		{
			this.workbook.worksheets.CopyTo(array, arrayIndex);
		}

		private IControlAdapter adapter;

		private Workbook workbook;
	}
}