Initial Commit

Charts/Axes/DateTime/Strategies/DelegateStrategy.cs

@@ -0,0 +1,30 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Microsoft.Research.DynamicDataDisplay.Charts.Axes.DateTime.Strategies
+{
+	public class DelegateDateTimeStrategy : DefaultDateTimeTicksStrategy
+	{
+		private readonly Func<TimeSpan, DifferenceIn?> function;
+		public DelegateDateTimeStrategy(Func<TimeSpan, DifferenceIn?> function)
+		{
+			if (function == null)
+				throw new ArgumentNullException("function");
+
+			this.function = function;
+		}
+
+		public override DifferenceIn GetDifference(TimeSpan span)
+		{
+			DifferenceIn? customResult = function(span);
+
+			DifferenceIn result = customResult.HasValue ?
+				customResult.Value :
+				base.GetDifference(span);
+
+			return result;
+		}
+	}
+}