anx.framework/ANX.Framework/Design/QuaternionConverter.cs

#region Using Statements
using System;
using System.Collections;
using System.ComponentModel;
#if !WIN8
using System.ComponentModel.Design.Serialization;
#endif
using System.Diagnostics.CodeAnalysis;
using System.Globalization;
using System.Reflection;

#endregion // Using Statements

#region License

//
// This file is part of the ANX.Framework created by the "ANX.Framework developer group".
//
// This file is released under the Ms-PL license.
//
//
//
// Microsoft Public License (Ms-PL)
//
// This license governs use of the accompanying software. If you use the software, you accept this license. 
// If you do not accept the license, do not use the software.
//
// 1.Definitions
//   The terms "reproduce," "reproduction," "derivative works," and "distribution" have the same meaning 
//   here as under U.S. copyright law.
//   A "contribution" is the original software, or any additions or changes to the software.
//   A "contributor" is any person that distributes its contribution under this license.
//   "Licensed patents" are a contributor's patent claims that read directly on its contribution.
//
// 2.Grant of Rights
//   (A) Copyright Grant- Subject to the terms of this license, including the license conditions and limitations 
//       in section 3, each contributor grants you a non-exclusive, worldwide, royalty-free copyright license to 
//       reproduce its contribution, prepare derivative works of its contribution, and distribute its contribution
//       or any derivative works that you create.
//   (B) Patent Grant- Subject to the terms of this license, including the license conditions and limitations in 
//       section 3, each contributor grants you a non-exclusive, worldwide, royalty-free license under its licensed
//       patents to make, have made, use, sell, offer for sale, import, and/or otherwise dispose of its contribution 
//       in the software or derivative works of the contribution in the software.
//
// 3.Conditions and Limitations
//   (A) No Trademark License- This license does not grant you rights to use any contributors' name, logo, or trademarks.
//   (B) If you bring a patent claim against any contributor over patents that you claim are infringed by the software, your 
//       patent license from such contributor to the software ends automatically.
//   (C) If you distribute any portion of the software, you must retain all copyright, patent, trademark, and attribution 
//       notices that are present in the software.
//   (D) If you distribute any portion of the software in source code form, you may do so only under this license by including
//       a complete copy of this license with your distribution. If you distribute any portion of the software in compiled or 
//       object code form, you may only do so under a license that complies with this license.
//   (E) The software is licensed "as-is." You bear the risk of using it. The contributors give no express warranties, guarantees,
//       or conditions. You may have additional consumer rights under your local laws which this license cannot change. To the
//       extent permitted under your local laws, the contributors exclude the implied warranties of merchantability, fitness for a 
//       particular purpose and non-infringement.

#endregion // License

namespace ANX.Framework.Design
{
#if !WIN8      //TODO: search replacement for Win8

    public class QuaternionConverter : MathTypeConverter
    {
        public QuaternionConverter()
        {
            base.propertyDescriptions = MathTypeConverter.CreateFieldDescriptor<Quaternion>("X", "Y", "Z", "W");
        }

        public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
        {
            float[] values = MathTypeConverter.ConvertFromString<float>(context, culture, value as String);
            if (values != null && values.Length == 4)
            {
                return new Quaternion(values[0], values[1], values[2], values[3]);
            }
            return base.ConvertFrom(context, culture, value);
        }

        public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
        {
            if (destinationType == null)
            {
                throw new ArgumentNullException("destinationType");
            }
            if (value is Quaternion)
            {
                Quaternion instance = (Quaternion)value;

                if (destinationType == typeof(string))
                {
                    return MathTypeConverter.ConvertToString<float>(context, culture, new float[] { instance.X, instance.Y, instance.Z, instance.W });
                }
                if (destinationType == typeof(InstanceDescriptor))
                {
                    var constructor = typeof(Quaternion).GetConstructor(new Type[] { typeof(float), typeof(float), typeof(float), typeof(float) });
                    return new InstanceDescriptor(constructor, new object[] { instance.X, instance.Y, instance.Z, instance.W });
                }
            }

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

        public override object CreateInstance(ITypeDescriptorContext context, IDictionary propertyValues)
        {
            if (propertyValues == null)
            {
                throw new ArgumentNullException("propertyValues");
            }
            return new Quaternion((float)propertyValues["X"], (float)propertyValues["Y"], (float)propertyValues["Z"], (float)propertyValues["W"]);
        }
    }

#endif
}