From 2774e142e1081c4b4225a281b7348235d54ef354 Mon Sep 17 00:00:00 2001
From: Adrien Destugues <pulkomandy@pulkomandy.ath.cx>
Date: Fri, 23 Jul 2010 13:19:33 +0000
Subject: [PATCH]  * Add a BTimeZone class for handling time zones.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37718 a95241bf-73f2-0310-859d-f6bbb57e9c96
---
 headers/os/locale/TimeZone.h | 31 ++++++++++++++++++
 src/kits/locale/Jamfile      | 16 ++++++----
 src/kits/locale/TimeZone.cpp | 62 ++++++++++++++++++++++++++++++++++++
 3 files changed, 102 insertions(+), 7 deletions(-)
 create mode 100644 headers/os/locale/TimeZone.h
 create mode 100644 src/kits/locale/TimeZone.cpp

diff --git a/headers/os/locale/TimeZone.h b/headers/os/locale/TimeZone.h
new file mode 100644
index 0000000000..20be021f33
--- /dev/null
+++ b/headers/os/locale/TimeZone.h
@@ -0,0 +1,31 @@
+/*
+Copyright 2010, Haiku, Inc.
+Distributed under the terms of the MIT License.
+*/
+
+
+#ifndef __TIMEZONE_H__
+#define __TIMEZONE_H__
+
+
+class BString;
+namespace icu_44 {
+	class TimeZone;
+}
+
+
+class BTimeZone {
+	public:
+					BTimeZone(const char* zoneCode);
+					~BTimeZone();
+
+		void		Name(BString& name);
+		void		Code(BString& code);
+		int			OffsetFromGMT();
+
+	private:
+		icu_44::TimeZone*	fICUTimeZone;
+};
+
+
+#endif
diff --git a/src/kits/locale/Jamfile b/src/kits/locale/Jamfile
index eb3dd266a2..c5cf851fc9 100644
--- a/src/kits/locale/Jamfile
+++ b/src/kits/locale/Jamfile
@@ -11,8 +11,16 @@ local sources =
 	Catalog.cpp
 	Collator.cpp
 	Country.cpp
-	Currency.cpp
 	DefaultCatalog.cpp
+	HashMapCatalog.cpp
+	Language.cpp
+	LibbeLocaleBackend.cpp
+	LibraryInit.cpp
+	Locale.cpp
+	LocaleRoster.cpp
+	TimeZone.cpp
+
+	Currency.cpp
 	FloatFormat.cpp
 	FloatFormatImpl.cpp
 	FloatFormatParameters.cpp
@@ -20,16 +28,10 @@ local sources =
 	FormatImpl.cpp
 	FormatParameters.cpp
 	GenericNumberFormat.cpp
-	HashMapCatalog.cpp
 	IntegerFormat.cpp
 	IntegerFormatImpl.cpp
 	IntegerFormatParameters.cpp
 	langinfo.cpp
-	Language.cpp
-	LibbeLocaleBackend.cpp
-	LibraryInit.cpp
-	Locale.cpp
-	LocaleRoster.cpp
 	NumberFormat.cpp
 	NumberFormatImpl.cpp
 	NumberFormatParameters.cpp
diff --git a/src/kits/locale/TimeZone.cpp b/src/kits/locale/TimeZone.cpp
new file mode 100644
index 0000000000..44f30406cf
--- /dev/null
+++ b/src/kits/locale/TimeZone.cpp
@@ -0,0 +1,62 @@
+/*
+Copyright 2010, Adrien Destugues <pulkomandy@pulkomandy.ath.cx>
+Distributed under the terms of the MIT License.
+*/
+
+
+#include <TimeZone.h>
+
+#include <String.h>
+
+#include <unicode/timezone.h>
+#include <ICUWrapper.h>
+
+
+BTimeZone::BTimeZone(const char* zoneCode)
+{
+	fICUTimeZone = TimeZone::createTimeZone(zoneCode);
+}
+
+
+BTimeZone::~BTimeZone()
+{
+	delete fICUTimeZone;
+}
+
+
+void
+BTimeZone::Name(BString& name)
+{
+	UnicodeString unicodeName;
+	fICUTimeZone->getDisplayName(unicodeName);
+
+	BStringByteSink converter(&name);
+	unicodeName.toUTF8(converter);
+}
+
+
+void
+BTimeZone::Code(BString& code)
+{
+	UnicodeString unicodeName;
+	fICUTimeZone->getID(unicodeName);
+
+	BStringByteSink converter(&code);
+	unicodeName.toUTF8(converter);
+}
+
+
+int
+BTimeZone::OffsetFromGMT()
+{
+	int32_t rawOffset;
+	int32_t dstOffset;
+	time_t now;
+	UErrorCode error = U_ZERO_ERROR;
+	fICUTimeZone->getOffset(time(&now) * 1000, FALSE, rawOffset, dstOffset
+		, error);
+	if (error != U_ZERO_ERROR)
+		return 0;
+	else
+		return rawOffset + dstOffset;
+}