68 lines
1.4 KiB
C#
68 lines
1.4 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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namespace Microsoft.Research.DynamicDataDisplay.Charts
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{
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public class ExtendedDaysStrategy : IDateTimeTicksStrategy
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{
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private static readonly DifferenceIn[] diffs = new DifferenceIn[] {
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DifferenceIn.Year,
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DifferenceIn.Day,
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DifferenceIn.Hour,
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DifferenceIn.Minute,
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DifferenceIn.Second,
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DifferenceIn.Millisecond
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};
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public DifferenceIn GetDifference(TimeSpan span)
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{
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span = span.Duration();
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DifferenceIn diff;
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if (span.Days > 365)
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diff = DifferenceIn.Year;
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else if (span.Days > 0)
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diff = DifferenceIn.Day;
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else if (span.Hours > 0)
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diff = DifferenceIn.Hour;
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else if (span.Minutes > 0)
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diff = DifferenceIn.Minute;
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else if (span.Seconds > 0)
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diff = DifferenceIn.Second;
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else
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diff = DifferenceIn.Millisecond;
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return diff;
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}
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public bool TryGetLowerDiff(DifferenceIn diff, out DifferenceIn lowerDiff)
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{
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lowerDiff = diff;
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int index = Array.IndexOf(diffs, diff);
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if (index == -1)
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return false;
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if (index == diffs.Length - 1)
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return false;
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lowerDiff = diffs[index + 1];
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return true;
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}
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public bool TryGetBiggerDiff(DifferenceIn diff, out DifferenceIn biggerDiff)
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{
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biggerDiff = diff;
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int index = Array.IndexOf(diffs, diff);
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if (index == -1 || index == 0)
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return false;
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biggerDiff = diffs[index - 1];
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return true;
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}
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}
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}
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