Attribute-flavored Domain Driven Design

using System;
using System.ComponentModel;
using System.Globalization;
using Cubox.Model;

namespace Cubox.Model
{
	internal class LocationConverter : ExpandableObjectConverter
	{
		/// <summary>
		/// 
		/// </summary>
		/// <param name="context"></param>
		/// <param name="sourceType"></param>
		/// <returns></returns>
		public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType)
		{
			if (sourceType == typeof(string))
			{
				return true;
			}
			return base.CanConvertFrom (context, sourceType);
		}

		/// <summary>
		/// 
		/// </summary>
		/// <param name="context"></param>
		/// <param name="culture"></param>
		/// <param name="value"></param>
		/// <returns></returns>
		public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
		{
			if (value is string)
			{
				try
				{
					char c = char.Parse(";");
					string[] s = (value as string).Split(c);

					Location loc = new Location();
					loc.Latitude = double.Parse(s[0]);
					loc.Longitude = double.Parse(s[1]);
					return loc;
				}
				catch
				{
					throw new ArgumentException("Cannot convert from '" + (string)value + "' to type Location");
				}
			}
			return base.ConvertFrom (context, culture, value);
		}

		/// <summary>
		/// 
		/// </summary>
		/// <param name="context"></param>
		/// <param name="culture"></param>
		/// <param name="value"></param>
		/// <param name="destinationType"></param>
		/// <returns></returns>
		public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
		{
			if (destinationType == typeof(string) && value is Location)
			{
				Location loc = value as Location;
				
				return (loc.Latitude + "; " + loc.Longitude);

			}
			return base.ConvertTo (context, culture, value, destinationType);
		}

	}


}