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author | Jiyoung Yun <jy910.yun@samsung.com> | 2017-04-13 14:17:19 +0900 |
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committer | Jiyoung Yun <jy910.yun@samsung.com> | 2017-04-13 14:17:19 +0900 |
commit | a56e30c8d33048216567753d9d3fefc2152af8ac (patch) | |
tree | 7e5d979695fc4a431740982eb1cfecc2898b23a5 /src/mscorlib/src/System/Globalization/HijriCalendar.Win32.cs | |
parent | 4b11dc566a5bbfa1378d6266525c281b028abcc8 (diff) | |
download | coreclr-a56e30c8d33048216567753d9d3fefc2152af8ac.tar.gz coreclr-a56e30c8d33048216567753d9d3fefc2152af8ac.tar.bz2 coreclr-a56e30c8d33048216567753d9d3fefc2152af8ac.zip |
Imported Upstream version 2.0.0.11353upstream/2.0.0.11353
Diffstat (limited to 'src/mscorlib/src/System/Globalization/HijriCalendar.Win32.cs')
-rw-r--r-- | src/mscorlib/src/System/Globalization/HijriCalendar.Win32.cs | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/src/mscorlib/src/System/Globalization/HijriCalendar.Win32.cs b/src/mscorlib/src/System/Globalization/HijriCalendar.Win32.cs new file mode 100644 index 0000000000..4ba95c8fa8 --- /dev/null +++ b/src/mscorlib/src/System/Globalization/HijriCalendar.Win32.cs @@ -0,0 +1,83 @@ +// 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 Microsoft.Win32; + +namespace System.Globalization +{ + public partial class HijriCalendar : Calendar + { + private int GetHijriDateAdjustment() + { + if (_hijriAdvance == Int32.MinValue) + { + // Never been set before. Use the system value from registry. + _hijriAdvance = GetAdvanceHijriDate(); + } + return (_hijriAdvance); + } + + private const String InternationalRegKey = "Control Panel\\International"; + private const String HijriAdvanceRegKeyEntry = "AddHijriDate"; + + /*=================================GetAdvanceHijriDate========================== + **Action: Gets the AddHijriDate value from the registry. + **Returns: + **Arguments: None. + **Exceptions: + **Note: + ** The HijriCalendar has a user-overidable calculation. That is, use can set a value from the control + ** panel, so that the calculation of the Hijri Calendar can move ahead or backwards from -2 to +2 days. + ** + ** The valid string values in the registry are: + ** "AddHijriDate-2" => Add -2 days to the current calculated Hijri date. + ** "AddHijriDate" => Add -1 day to the current calculated Hijri date. + ** "" => Add 0 day to the current calculated Hijri date. + ** "AddHijriDate+1" => Add +1 days to the current calculated Hijri date. + ** "AddHijriDate+2" => Add +2 days to the current calculated Hijri date. + ============================================================================*/ + private static int GetAdvanceHijriDate() + { + int hijriAdvance = 0; + Microsoft.Win32.RegistryKey key = null; + + using (key = Registry.CurrentUser.OpenSubKey(InternationalRegKey, writable: false)) + { + if (key == null) + return 0; + + Object value = key.GetValue(HijriAdvanceRegKeyEntry); + if (value == null) + { + return (0); + } + String str = value.ToString(); + if (String.Compare(str, 0, HijriAdvanceRegKeyEntry, 0, HijriAdvanceRegKeyEntry.Length, StringComparison.OrdinalIgnoreCase) == 0) + { + if (str.Length == HijriAdvanceRegKeyEntry.Length) + hijriAdvance = -1; + else + { + str = str.Substring(HijriAdvanceRegKeyEntry.Length); + try + { + int advance = Int32.Parse(str.ToString(), CultureInfo.InvariantCulture); + if ((advance >= MinAdvancedHijri) && (advance <= MaxAdvancedHijri)) + { + hijriAdvance = advance; + } + } + // If we got garbage from registry just ignore it. + // hijriAdvance = 0 because of declaraction assignment up above. + catch (ArgumentException) { } + catch (FormatException) { } + catch (OverflowException) { } + } + } + } + + return (hijriAdvance); + } + } +} |