Moved nesting to SawCut library

CutToLength/Models/UIItem.cs

@@ -0,0 +1,66 @@
+using Newtonsoft.Json;
+using SawCut;
+using System;
+
+namespace CutToLength
+{
+    public class UIItem
+    {
+        public UIItem()
+        {
+        }
+
+        public string Name { get; set; }
+
+        public string LengthInputValue { get; set; }
+
+        public double? Length
+        {
+            get
+            {
+                try
+                {
+                    var input = Fraction.ReplaceFractionsWithDecimals(LengthInputValue);
+
+                    double d;
+
+                    if (double.TryParse(input, out d))
+                    {
+                        LengthInputValue += "\"";
+                        return d;
+                    }
+
+                    return ArchUnits.ParseToInches(LengthInputValue);
+                }
+                catch
+                {
+                    return null;
+                }
+            }
+        }
+
+        [JsonIgnore]
+        public double? TotalLength
+        {
+            get 
+            {
+                var length = Length;
+
+                if (length == null)
+                    return null;
+
+                return Math.Round(length.Value * Quantity, 8); 
+            }
+        }
+
+        public int Quantity { get; set; } = 1;
+
+        private string GetDefaultName()
+        {
+            if (Length == 0)
+                return "-";
+
+            return string.Format("{0}\" LG", Length);
+        }
+    }
+}