| 1 | using System;
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| 2 | using System.Collections.Generic;
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| 3 | using System.Linq;
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| 4 | using System.Text;
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| 5 | using Microsoft.Research.DynamicDataDisplay.Common.Auxiliary;
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| 6 |
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| 7 | namespace Microsoft.Research.DynamicDataDisplay.Charts.NewAxis
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| 8 | {
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| 9 | public abstract class DateTimeTicksProviderBase : ITicksProvider<DateTime>
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| 10 | {
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| 11 | public abstract ITicksInfo<DateTime> GetTicks(Range<DateTime> range, int ticksCount);
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| 12 |
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| 13 | public abstract int DecreaseTickCount(int ticksCount);
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| 14 |
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| 15 | public abstract int IncreaseTickCount(int ticksCount);
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| 16 |
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| 17 | protected static DifferenceIn GetDifference(TimeSpan span)
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| 18 | {
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| 19 | // for negative time spans
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| 20 | span = span.Duration();
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| 21 |
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| 22 | DifferenceIn diff;
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| 23 | if (span.Days > 365)
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| 24 | diff = DifferenceIn.Year;
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| 25 | else if (span.Days > 30)
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| 26 | diff = DifferenceIn.Month;
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| 27 | else if (span.Days > 0)
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| 28 | diff = DifferenceIn.Day;
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| 29 | else if (span.Hours > 0)
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| 30 | diff = DifferenceIn.Hour;
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| 31 | else if (span.Minutes > 0)
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| 32 | diff = DifferenceIn.Minute;
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| 33 | else if (span.Seconds > 0)
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| 34 | diff = DifferenceIn.Second;
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| 35 | else
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| 36 | diff = DifferenceIn.Millisecond;
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| 37 |
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| 38 | return diff;
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| 39 | }
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| 40 |
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| 41 | protected static DateTime Shift(DateTime dateTime, DifferenceIn diff)
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| 42 | {
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| 43 | DateTime res = dateTime;
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| 44 |
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| 45 | switch (diff)
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| 46 | {
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| 47 | case DifferenceIn.Year:
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| 48 | res = res.AddYears(1);
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| 49 | break;
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| 50 | case DifferenceIn.Month:
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| 51 | res = res.AddMonths(1);
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| 52 | break;
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| 53 | case DifferenceIn.Day:
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| 54 | res = res.AddDays(1);
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| 55 | break;
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| 56 | case DifferenceIn.Hour:
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| 57 | res = res.AddHours(1);
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| 58 | break;
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| 59 | case DifferenceIn.Minute:
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| 60 | res = res.AddMinutes(1);
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| 61 | break;
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| 62 | case DifferenceIn.Second:
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| 63 | res = res.AddSeconds(1);
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| 64 | break;
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| 65 | case DifferenceIn.Millisecond:
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| 66 | res = res.AddMilliseconds(1);
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| 67 | break;
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| 68 | default:
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| 69 | break;
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| 70 | }
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| 71 |
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| 72 | return res;
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| 73 | }
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| 74 |
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| 75 | protected static DateTime RoundDown(DateTime dateTime, DifferenceIn diff)
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| 76 | {
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| 77 | DateTime res = dateTime;
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| 78 |
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| 79 | switch (diff)
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| 80 | {
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| 81 | case DifferenceIn.Year:
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| 82 | res = new DateTime(dateTime.Year, 1, 1);
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| 83 | break;
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| 84 | case DifferenceIn.Month:
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| 85 | res = new DateTime(dateTime.Year, dateTime.Month, 1);
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| 86 | break;
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| 87 | case DifferenceIn.Day:
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| 88 | res = dateTime.Date;
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| 89 | break;
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| 90 | case DifferenceIn.Hour:
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| 91 | res = dateTime.Date.AddHours(dateTime.Hour);
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| 92 | break;
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| 93 | case DifferenceIn.Minute:
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| 94 | res = dateTime.Date.AddHours(dateTime.Hour).AddMinutes(dateTime.Minute);
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| 95 | break;
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| 96 | case DifferenceIn.Second:
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| 97 | res = dateTime.Date.AddHours(dateTime.Hour).AddMinutes(dateTime.Minute).AddSeconds(dateTime.Second);
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| 98 | break;
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| 99 | case DifferenceIn.Millisecond:
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| 100 | res = dateTime.Date.AddHours(dateTime.Hour).AddMinutes(dateTime.Minute).AddSeconds(dateTime.Second).AddMilliseconds(dateTime.Millisecond);
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| 101 | break;
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| 102 | default:
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| 103 | break;
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| 104 | }
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| 105 |
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| 106 | DebugVerify.Is(res <= dateTime);
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| 107 |
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| 108 | return res;
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| 109 | }
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| 110 |
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| 111 | protected static DateTime RoundUp(DateTime dateTime, DifferenceIn diff)
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| 112 | {
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| 113 | DateTime res = RoundDown(dateTime, diff);
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| 114 |
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| 115 | switch (diff)
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| 116 | {
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| 117 | case DifferenceIn.Year:
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| 118 | res = res.AddYears(1);
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| 119 | break;
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| 120 | case DifferenceIn.Month:
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| 121 | res = res.AddMonths(1);
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| 122 | break;
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| 123 | case DifferenceIn.Day:
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| 124 | res = res.AddDays(1);
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| 125 | break;
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| 126 | case DifferenceIn.Hour:
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| 127 | res = res.AddHours(1);
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| 128 | break;
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| 129 | case DifferenceIn.Minute:
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| 130 | res = res.AddMinutes(1);
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| 131 | break;
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| 132 | case DifferenceIn.Second:
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| 133 | res = res.AddSeconds(1);
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| 134 | break;
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| 135 | case DifferenceIn.Millisecond:
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| 136 | res = res.AddMilliseconds(1);
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| 137 | break;
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| 138 | default:
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| 139 | break;
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| 140 | }
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| 141 |
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| 142 | return res;
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| 143 | }
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| 144 | }
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| 145 | }
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