Cleanup classes.

CutToLength/Bin.cs

@@ -0,0 +1,48 @@
+using System;
+using System.Collections.Generic;
+
+namespace CutToLength
+{
+    public class Bin
+    {
+        public List<BinItem> Items;
+
+        public Bin(double length)
+        {
+            Items = new List<BinItem>();
+            Length = length;
+        }
+
+        public double Spacing { get; set; }
+
+        public double Length { get; set; }
+
+        public double UsedLength
+        {
+            get
+            {
+                return Items.Sum(i => i.Length) + Spacing * Items.Count;
+            }
+        }
+
+        public double RemainingLength
+        {
+            get { return Length - UsedLength; }
+        }
+
+        public double Utilization
+        {
+            get { return (UsedLength / Length * 100.0); }
+        }
+
+        public override string ToString()
+        {
+            return string.Format(
+                "Length: {0}\", {1}\" remaining, {2} items, {3}% utilization",
+                Math.Round(Length, 4),
+                Math.Round(RemainingLength, 4),
+                Items.Count,
+                Math.Round(Utilization, 2));
+        }
+    }
+}