DrawToolsRedux/GraphicsList.cs

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using System;
using System.Collections;
using System.Collections.Generic;
using System.Drawing;
using System.Globalization;
using System.Reflection;
using System.Runtime.Serialization;
using System.Windows.Forms;

namespace DrawTools
{
	/// <summary>
	/// List of graphic objects
	/// </summary>
	[Serializable]
	public class GraphicsList
	{
		private ArrayList graphicsList;

		private bool _isDirty;

		public bool Dirty
		{
			get
			{
				if (_isDirty == false)
				{
					foreach (DrawObject o in graphicsList)
					{
						if (o.Dirty)
						{
							_isDirty = true;
							break;
						}
					}
				}
				return _isDirty;
			}
			set
			{
				foreach (DrawObject o in graphicsList)
					o.Dirty = false;
				_isDirty = false;
			}
		}

		/// <summary>
		/// Returns IEnumerable object which may be used for enumeration
		/// of selected objects.
		/// 
		/// Note: returning IEnumerable<DrawObject> breaks CLS-compliance
		/// (assembly CLSCompliant = true is removed from AssemblyInfo.cs).
		/// To make this program CLS-compliant, replace 
		/// IEnumerable<DrawObject> with IEnumerable. This requires
		/// casting to object at runtime.
		/// </summary>
		/// <value></value>
		public IEnumerable<DrawObject> Selection
		{
			get