#region Using Statements
using System;
using System.Collections.Generic;
using ANX.Framework.Graphics;
using ANX.Framework.NonXNA;

#endregion

// This file is part of the ANX.Framework created by the
// "ANX.Framework developer group" and released under the Ms-PL license.
// For details see: http://anxframework.codeplex.com/license

using Dx11 = SharpDX.Direct3D11;

namespace ANX.RenderSystem.Windows.DX11
{
	public class EffectTechnique_DX11 : INativeEffectTechnique
	{
		private readonly Effect parentEffect;

		public EffectTechnique_DX11(Effect parentEffect, Dx11.EffectTechnique nativeTechnique)
		{
            if (parentEffect == null)
            {
                throw new ArgumentNullException("parentEffect");
            }

			this.parentEffect = parentEffect;
			NativeTechnique = nativeTechnique;
		}

        public Dx11.EffectTechnique NativeTechnique { get; protected set; }

        public string Name
		{
			get
			{
				return NativeTechnique.Description.Name;
			}
		}

		public IEnumerable<EffectPass> Passes
		{
			get
			{
				for (int i = 0; i < NativeTechnique.Description.PassCount; i++)
				{
					yield return new EffectPass(new EffectPass_DX11(this.parentEffect, NativeTechnique.GetPassByIndex(i)));
				}
			}
		}

        public EffectAnnotationCollection Annotations
        {
            get { throw new NotImplementedException(); }
        }

        public void Dispose()
        {
            Dispose(true);
            GC.SuppressFinalize(this);
        }

        protected virtual void Dispose(bool disposeManaged)
        {
            if (disposeManaged)
            {
                if (NativeTechnique != null)
                {
                    NativeTechnique.Dispose();
                    NativeTechnique = null;
                }
            }
        }
    }
}