Made MatterControl run as a .net standard app

Moving matter control to a lib and creating a new exe to run it

MatterControlLib/Library/Providers/GeneratorItem.cs

@@ -0,0 +1,129 @@
+/*
+Copyright (c) 2017, John Lewin
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+The views and conclusions contained in the software and documentation are those
+of the authors and should not be interpreted as representing official policies,
+either expressed or implied, of the FreeBSD Project.
+*/
+
+using System;
+using System.Linq;
+using System.Threading.Tasks;
+using MatterHackers.Agg;
+using MatterHackers.DataConverters3D;
+
+namespace MatterHackers.MatterControl.Library
+{
+	public static class ColorRange
+	{
+		private static int currentColorIndex = 0;
+
+		private static Color[] colors;
+
+		private static int totalColors = 0;
+
+		static ColorRange()
+		{
+			TotalColors = 12;
+		}
+
+		public static int TotalColors
+		{
+			get => totalColors;
+			set
+			{
+				if (totalColors != value)
+				{
+					totalColors = value;
+					colors = Enumerable.Range(0, totalColors).Select(colorIndex => ColorF.FromHSL(colorIndex / (double)totalColors, 1, .5).ToColor()).ToArray();
+				}
+			}
+		}
+
+		public static Color NextColor()
+		{
+			return colors[(currentColorIndex++) % TotalColors];
+		}
+	}
+
+	public class GeneratorItem : ILibraryObject3D
+	{
+		private Func<string> nameResolver;
+
+		/// <summary>
+		/// The delegate responsible for producing the item
+		/// </summary>
+		private Func<IObject3D> collector;
+
+		public GeneratorItem(Func<string> nameResolver)
+		{
+			this.nameResolver = nameResolver;
+			this.IsProtected = true;
+		}
+
+		public GeneratorItem(Func<string> nameResolver, Func<IObject3D> collector, string category = null)
+		{
+			this.nameResolver = nameResolver;
+			this.collector = collector;
+			this.Category = category;
+			//this.Color = ColorRange.NextColor();
+		}
+
+		public string ID => $"MatterHackers/ItemGenerator/{Name}".GetHashCode().ToString();
+		public string Category { get; set; }
+		public string Name => nameResolver?.Invoke();
+
+		public string ContentType { get; set; } = "mcx";
+
+		public bool IsProtected { get; set; }
+		public bool IsVisible => true;
+
+		public DateTime DateCreated { get; set; } = DateTime.Now;
+
+		public DateTime DateModified => DateCreated;
+
+		public Color Color { get; set; }
+
+		public long FileSize => 0;
+
+		public string FileName => $"{this.Name}.{this.ContentType}";
+
+		public string AssetPath => "";
+
+		public bool LocalContentExists => true;
+
+		public Task<IObject3D> GetObject3D(Action<double, string> reportProgress)
+		{
+			var result = collector?.Invoke();
+
+			// If the content has not set a color, we'll assign from the running ColorRange
+			if (result.Color == Color.Transparent)
+			{
+				result.Color = this.Color;
+			}
+
+			return Task.FromResult(result);
+		}
+	}
+}