using System;

using System.Collections.Generic;

using System.Text;

using System.Collections;

namespace Aga.Controls.Tree

{

	public class ListModel : TreeModelBase

	{

		private IList _list;

		public int Count

		{

			get { return _list.Count; }

		}

		public ListModel()

		{

			_list = new List<object>();

		}

		public ListModel(IList list)

		{

			_list = list;

		}

		public override IEnumerable GetChildren(TreePath treePath)

		{

			return _list;

		}

		public override bool IsLeaf(TreePath treePath)

		{

			return true;

		}

		public void AddRange(IEnumerable items)

		{

			foreach (object obj in items)

				_list.Add(obj);

			OnStructureChanged(new TreePathEventArgs(TreePath.Empty));

		}

		public void Add(object item)

		{

			_list.Add(item);

			OnNodesInserted(new TreeModelEventArgs(TreePath.Empty, new int[] { _list.Count - 1 }, new object[] { item }));

		}

		public void Clear()

		{

			_list.Clear();

			OnStructureChanged(new TreePathEventArgs(TreePath.Empty));

		}

	}

}