Relationship Oriented Programming - The IDE plus More on Agile Project Management

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;

namespace ROPLib
{
	public class AttributeNameConverter : StringConverter
	{
		public override bool GetStandardValuesSupported(ITypeDescriptorContext context)
		{
			return true;
		}

		public override TypeConverter.StandardValuesCollection GetStandardValues(ITypeDescriptorContext context)
		{
			List<string> names = Schema.Instance.GetSortedAttributeNames();

			return new StandardValuesCollection(names);
		}
	}

	/// <summary>
	/// Gets a list of entity attributes for a Relationship.EntityA property or an Entity instance.
	/// </summary>
	public class EntityAttributesConverter : StringConverter
	{
		public override bool GetStandardValuesSupported(ITypeDescriptorContext context)
		{
			return true;
		}

		public override TypeConverter.StandardValuesCollection GetStandardValues(ITypeDescriptorContext context)
		{
			List<string> names = new List<string>();
			string entityName;

			if (context.Instance is Relationship)
			{
				entityName = ((Relationship)context.Instance).EntityA;
				Entity entity = null;

				foreach (EntitiesContainer ec in Schema.Instance.EntitiesContainer)
				{
					entity = ec.Entities.Find(t => t.Name == entityName);

					if (entity != null)
					{
						break;
					}
				}

				entity.EntityAttributes.ForEach(t => names.Add(t.Name));
			}
			else if (context.Instance is Entity)
			{
				((Entity)context.Instance).EntityAttributes.ForEach(t => names.Add(t.Name));
			}

			names.Sort();

			return new StandardValuesCollection(names);
		}
	}

	public class EntityNameConverter : StringConverter
	{
		public override bool GetStandardValuesSupported(ITypeDescriptorContext context)
		{
			return true;
		}

		public override TypeConverter.StandardValuesCollection GetStandardValues(ITypeDescriptorContext context)
		{
			List<string> names = new List<string>();
			Schema.Instance.EntitiesContainer.ForEach(t => t.Entities.ForEach(a => names.Add(a.Name)));
			names.Sort();

			return new StandardValuesCollection(names);
		}
	}

	public class ListOfItemsNameConverter : StringConverter
	{
		public override bool GetStandardValuesSupported(ITypeDescriptorContext context)
		{
			return true;
		}

		public override TypeConverter.StandardValuesCollection GetStandardValues(ITypeDescriptorContext context)
		{
			List<string> names = new List<string>();
			Schema.Instance.ListsContainer.ForEach(t => t.ListOfItems.ForEach(l => names.Add(l.Name)));
			names.Sort();

			return new StandardValuesCollection(names);
		}
	}

	public class ListOfPairsNameConverter : StringConverter
	{
		public override bool GetStandardValuesSupported(ITypeDescriptorContext context)
		{
			return true;
		}

		public override TypeConverter.StandardValuesCollection GetStandardValues(ITypeDescriptorContext context)
		{
			List<string> names = new List<string>();
			Schema.Instance.PairsContainer.ForEach(t => t.ListOfPairs.ForEach(l => names.Add(l.Name)));
			names.Sort();

			return new StandardValuesCollection(names);
		}
	}
}