Add VisibleDomainRelativePercent.Create overloads for TimeRange and ResourceTimeRange columns.

Author: Cristian Levcovici

src/Microsoft.Performance.SDK/Processing/Projection/ViewportRelativePercentProjection.cs

@@ -34,6 +34,54 @@ var columnRelativeToVisibleDomain
                 return columnRelativeToVisibleDomain;
             }
 
+            /// <summary>
+            ///     Creates a projection that returns the percentage of the visible time consumed by this
+            ///     <see cref="TimeRange"/>.
+            /// </summary>
+            /// <param name="timeRangeColumn">
+            ///     Time range.
+            /// </param>
+            /// <returns>
+            ///     Percent of time consumed by the given time range in a given visible domain.
+            /// </returns>
+            public static IProjection<int, double> Create(
+                IProjection<int, TimeRange> timeRangeColumn)
+            {
+                Guard.NotNull(timeRangeColumn, nameof(timeRangeColumn));
+
+                var aggregateRowsInVisibleDomainColumn
+                    = Projection.AggregateInVisibleDomain<TimeRange, TimestampDelta>(timeRangeColumn);
+
+                var columnRelativeToVisibleDomain
+                    = Percent.Create(timeRangeColumn.Compose(timeRange => timeRange.Duration), aggregateRowsInVisibleDomainColumn);
+
+                return columnRelativeToVisibleDomain;
+            }
+
+            /// <summary>
+            ///     Creates a projection that returns the percentage of the visible time consumed by this
+            ///     <see cref="ResourceTimeRange"/>.
+            /// </summary>
+            /// <param name="resourceTimeRangeColumn">
+            ///     Resource time range.
+            /// </param>
+            /// <returns>
+            ///     Percent of time consumed by the given resource time range in a given visible domain.
+            /// </returns>
+            public static IProjection<int, double> Create(
+                IProjection<int, ResourceTimeRange> resourceTimeRangeColumn)
+            {
+                Guard.NotNull(resourceTimeRangeColumn, nameof(resourceTimeRangeColumn));
+
+                var aggregateRowsInVisibleDomainColumn
+                    = Projection.AggregateInVisibleDomain<ResourceTimeRange, TimestampDelta>(resourceTimeRangeColumn);
+
+                var columnRelativeToVisibleDomain
+                    = Percent.Create(resourceTimeRangeColumn.Compose(resourceTimeRange => resourceTimeRange.Duration), aggregateRowsInVisibleDomainColumn);
+
+                return columnRelativeToVisibleDomain;
+            }
+
             /// <summary>
             ///     Creates a projection that maps a percentage relative to an entire domain to a percentage
             ///     relative to the current visible domain.