* added possibility to pass in the timezone when formatting the time

* added TODOs about the need to get rid of some of the date/time-formatting
  shortcut methods

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38146 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/os/locale/Locale.h

@@ -13,6 +13,7 @@
 
 class BCatalog;
 class BString;
+class BTimeZone;
 
 
 class BLocale {
@@ -46,6 +47,8 @@ public:
 
 								// Date
 
+								// TODO: drop some of these once BDateFormat
+								//       has been implemented!
 			status_t			FormatDate(char* string, size_t maxSize,
 									time_t time, bool longFormat);
 			status_t			FormatDate(BString* string, time_t time,
@@ -63,10 +66,13 @@ public:
 
 								// Time
 
+								// TODO: drop some of these once BTimeFormat
+								//       has been implemented!
 			status_t			FormatTime(char* string, size_t maxSize,
 									time_t time, bool longFormat);
 			status_t			FormatTime(BString* string, time_t time,
-									bool longFormat);
+									bool longFormat,
+									const BTimeZone* timeZone = NULL);
 			status_t			FormatTime(BString* string,
 									int*& fieldPositions, int& fieldCount,
 									time_t time, bool longFormat);

src/kits/locale/Locale.cpp

@@ -9,6 +9,7 @@
 #include <Catalog.h>
 #include <Locale.h>
 #include <LocaleRoster.h>
+#include <TimeZone.h>
 
 #include <unicode/datefmt.h>
 #include <unicode/dcfmtsym.h>
@@ -393,7 +394,8 @@ BLocale::FormatTime(char* string, size_t maxSize, time_t time, bool longFormat)
 
 
 status_t
-BLocale::FormatTime(BString* string, time_t time, bool longFormat)
+BLocale::FormatTime(BString* string, time_t time, bool longFormat,
+	const BTimeZone* timeZone)
 {
 	string->Truncate(0);
 
@@ -402,6 +404,14 @@ BLocale::FormatTime(BString* string, time_t time, bool longFormat)
 	if (timeFormatter.Get() == NULL)
 		return B_NO_MEMORY;
 
+	if (timeZone != NULL) {
+		ObjectDeleter<TimeZone> icuTimeZone
+			= TimeZone::createTimeZone(timeZone->Code().String());
+		if (icuTimeZone.Get() == NULL)
+			return B_NO_MEMORY;
+		timeFormatter->setTimeZone(*icuTimeZone.Get());
+	}
+
 	UnicodeString ICUString;
 	ICUString = timeFormatter->format((UDate)time * 1000, ICUString);