using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Drawing;
using System.Windows.Forms;

namespace WeifenLuo.WinFormsUI.Docking
{
	public class FloatWindowCollection : ReadOnlyCollection<FloatWindow>
	{
		internal FloatWindowCollection()
            : base(new List<FloatWindow>())
		{
		}

		internal int Add(FloatWindow fw)
		{
			if (Items.Contains(fw))
				return Items.IndexOf(fw);

			Items.Add(fw);
            return Count - 1;
		}

		internal void Dispose()
		{
			for (int i=Count - 1; i>=0; i--)
				this[i].Close();
		}

		internal void Remove(FloatWindow fw)
		{
			Items.Remove(fw);
		}

		internal void BringWindowToFront(FloatWindow fw)
		{
			Items.Remove(fw);
			Items.Add(fw);
		}
	}
}