Canvas/Model.cs

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using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Windows.Forms;
using System.Xml;
using System.IO;
using System.Reflection;

namespace Canvas
{
	public class DataModel : IModel
	{
		static Dictionary<string, Type> m_toolTypes = new Dictionary<string,Type>();
		static public IDrawObject NewDrawObject(string objecttype)
		{
			if (m_toolTypes.ContainsKey(objecttype))
			{
				string type = m_toolTypes[objecttype].ToString();
				return Assembly.GetExecutingAssembly().CreateInstance(type) as IDrawObject;
			}
			return null;
		}

		Dictionary<string, IDrawObject> m_drawObjectTypes = new Dictionary<string, IDrawObject>(); 
		DrawTools.DrawObjectBase CreateObject(string objecttype)
		{
			if (m_drawObjectTypes.ContainsKey(objecttype))
			{
				return m_drawObjectTypes[objecttype].Clone() as DrawTools.DrawObjectBase;
			}
			return null;
		}


		Dictionary<string, IEditTool> m_editTools = new Dictionary<string, IEditTool>(); 
		public void AddEditTool(string key, IEditTool tool)
		{
			m_editTools.Add(key, tool);
		}

		public bool IsDirty
		{
			get { return m_undoBuffer.Dirty; }
		}
		UndoRedoBuffer m_undoBuffer = new UndoRedoBuffer();
		
		UnitPoint m_centerPoint = UnitPoint.Empty;
		[XmlSerializable]
		public UnitPoint CenterPoint
		{
			get { return m_centerPoint; }
			set { m_centerPoint = value; }
		}

		float m_zoom = 1;
		GridLayer m_gridLayer = new GridLayer();
		BackgroundLayer m_backgroundLayer = new BackgroundLayer();
		List<ICanvasLayer> m_layers = new List<ICanvasLayer>();