diff options
Diffstat (limited to 'src/mscorlib/shared/System/Globalization/JapaneseCalendar.WinRT.cs')
-rw-r--r-- | src/mscorlib/shared/System/Globalization/JapaneseCalendar.WinRT.cs | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/src/mscorlib/shared/System/Globalization/JapaneseCalendar.WinRT.cs b/src/mscorlib/shared/System/Globalization/JapaneseCalendar.WinRT.cs new file mode 100644 index 0000000000..6a9df97200 --- /dev/null +++ b/src/mscorlib/shared/System/Globalization/JapaneseCalendar.WinRT.cs @@ -0,0 +1,62 @@ +// Licensed to the .NET Foundation under one or more agreements. +// The .NET Foundation licenses this file to you under the MIT license. +// See the LICENSE file in the project root for more information. + +using System.Diagnostics; + +using Internal.Runtime.Augments; + +namespace System.Globalization +{ + public partial class JapaneseCalendar : Calendar + { + private static EraInfo[] GetJapaneseEras() + { + int erasCount = WinRTInterop.Callbacks.GetJapaneseEraCount(); + if (erasCount < 4) + { + return null; + } + + EraInfo[] eras = new EraInfo[erasCount]; + int lastMaxYear = GregorianCalendar.MaxYear; + + for (int i = erasCount; i > 0; i--) + { + DateTimeOffset dateOffset; + + string eraName; + string abbreviatedEraName; + + if (!GetJapaneseEraInfo(i, out dateOffset, out eraName, out abbreviatedEraName)) + { + return null; + } + + DateTime dt = new DateTime(dateOffset.Ticks); + + eras[erasCount - i] = new EraInfo(i, dt.Year, dt.Month, dt.Day, dt.Year - 1, 1, lastMaxYear - dt.Year + 1, + eraName, abbreviatedEraName, GetJapaneseEnglishEraName(i)); // era #4 start year/month/day, yearOffset, minEraYear + + lastMaxYear = dt.Year; + } + + return eras; + } + + // PAL Layer ends here + + private static string[] JapaneseErasEnglishNames = new String[] { "M", "T", "S", "H" }; + + private static string GetJapaneseEnglishEraName(int era) + { + Debug.Assert(era > 0); + return era <= JapaneseErasEnglishNames.Length ? JapaneseErasEnglishNames[era - 1] : " "; + } + + private static bool GetJapaneseEraInfo(int era, out DateTimeOffset dateOffset, out string eraName, out string abbreviatedEraName) + { + return WinRTInterop.Callbacks.GetJapaneseEraInfo(era, out dateOffset, out eraName, out abbreviatedEraName); + } + } +} |