GetWindows() with reflection

[swharden]

Use reflection to make it easy to list available windows and get window by name. Something like

cbWindow.Items.AddRange
(
    typeof(FftSharp.Window)
        .GetMethods()
        .Select(x => x)
        .Where(x => x.GetParameters().Length == 1)
        .Where(x => x.ReturnType == typeof(double[]))
        .OrderBy(x => x.Name)
        .Select(x => x.Name)
        .ToArray()
);

MethodInfo[] infos = typeof(FftSharp.Window).GetMethods(BindingFlags.Public | BindingFlags.Static);
foreach (var info in infos)
{
    if (info.Name == cbWindow.Text)
    {
        double[] window = (double[])info.Invoke(null, new object[] { spec.FftSize });
        spec.SetWindow(window);
        break;
    }
}

[swharden]

d'oh! This already exists. FftSharp.Window.GetWindowByName(windowName, pointCount)

        public static string[] GetWindowNames()
        {
            return typeof(Window)
                    .GetMethods(BindingFlags.Public | BindingFlags.Static)
                    .Where(x => x.ReturnType.Equals(typeof(double[])))
                    .Where(x => x.GetParameters().Length == 1)
                    .Where(x => x.GetParameters()[0].ParameterType == typeof(int))
                    .Select(x => x.Name)
                    .ToArray();
        }

        public static double[] GetWindowByName(string windowName, int pointCount)
        {
            MethodInfo[] windowInfos = typeof(Window)
                                .GetMethods(BindingFlags.Public | BindingFlags.Static)
                                .Where(x => x.ReturnType.Equals(typeof(double[])))
                                .Where(x => x.GetParameters().Length == 1)
                                .Where(x => x.GetParameters()[0].ParameterType == typeof(int))
                                .Where(x => x.Name == windowName)
                                .ToArray();

            if (windowInfos.Length == 0)
                throw new ArgumentException($"invalid window name: {windowName}");

            object[] parameters = new object[] { pointCount };
            double[] result = (double[])windowInfos[0].Invoke(null, parameters);
            return result;
        }