WIP Timezone support

* BCountry can list the timezones applicable for the country
 * BCountry can give its name (for example France), or LocaleName (french (France)). The second one will later be moved to BLocale class along with 
most of the locale settings ; but this needs a bit of refactoring.
 * The Locale preflet now uses LocaleName instead of Name, since it deals with locales. The time preflet will want only country names, without te 
language information, for example.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37690 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/os/locale/Country.h

@@ -8,6 +8,7 @@
 
 
 class BBitmap;
+class BMessage;
 
 namespace icu_44 {
 	class DateFormat;
@@ -41,6 +42,7 @@ class BCountry {
 		virtual 		~BCountry();
 
 		virtual bool 	Name(BString&) const;
+		bool			LocaleName(BString&) const;
 		const char*		Code() const;
 		status_t		GetIcon(BBitmap* result);
 
@@ -106,6 +108,9 @@ class BCountry {
 		bool		MonGrouping(BString&) const;
 		virtual int32	MonFracDigits() const;
 
+		// timezones
+		status_t GetTimeZones(BMessage* timezones);
+
 	private:
 		icu_44::DateFormat* fICULongDateFormatter;
 		icu_44::DateFormat* fICUShortDateFormatter;

headers/os/locale/LocaleRoster.h

@@ -53,6 +53,8 @@ class BLocaleRoster {
 			// the message contains one or more 'language'-string-fields
 			// which contain the language-name(s)
 
+		status_t GetAvailableCountries(BMessage *) const;
+
 		status_t GetInstalledCatalogs(BMessage *, const char* sigPattern = NULL,
 			const char* langPattern = NULL,	int32 fingerprint = 0) const;
 			// the message contains...

src/kits/locale/Country.cpp

@@ -115,6 +115,17 @@ BCountry::~BCountry()
 
 bool
 BCountry::Name(BString& name) const
+{
+	UnicodeString uString;
+	fICULocale->getDisplayCountry(uString);
+	BStringByteSink stringConverter(&name);
+	uString.toUTF8(stringConverter);
+	return true;
+}
+
+
+bool
+BCountry::LocaleName(BString& name) const
 {
 	UnicodeString uString;
 	fICULocale->getDisplayName(uString);
@@ -139,18 +150,18 @@ BCountry::GetIcon(BBitmap* result)
 	// TODO: a proper way to locate the library being used ?
 	BResources storage("/boot/system/lib/liblocale.so");
 	if (storage.InitCheck() != B_OK)
-   		return B_ERROR;
-   	size_t size;
-   	const char* code = fICULocale->getCountry();
+		return B_ERROR;
+	size_t size;
+	const char* code = fICULocale->getCountry();
 	if (code != NULL) {
-   		const void* buffer = storage.LoadResource(B_VECTOR_ICON_TYPE, code,
-   			&size);
-   		if (buffer != NULL && size != 0) {
+		const void* buffer = storage.LoadResource(B_VECTOR_ICON_TYPE, code,
+			&size);
+		if (buffer != NULL && size != 0) {
 			return BIconUtils::GetVectorIcon(static_cast<const uint8*>(buffer),
 				size, result);
-   		}
+		}
 	}
-   	return B_BAD_DATA;
+	return B_BAD_DATA;
 }
 
 
@@ -840,3 +851,30 @@ BCountry::MonFracDigits() const
 	return 2;
 }
 
+
+// #pragma mark - Timezones
+
+
+status_t
+BCountry::GetTimeZones(BMessage* timezones)
+{
+	if (timezones == NULL)
+		return B_BAD_DATA;
+
+
+	StringEnumeration* icuTimeZoneList = TimeZone::createEnumeration(
+		fICULocale->getCountry());
+	UErrorCode error = U_ZERO_ERROR;
+
+	const char* tzName;
+	while (tzName = icuTimeZoneList->next(NULL, error)) {
+		if (error == U_ZERO_ERROR)
+			timezones->AddString("zones", tzName);
+		else
+			error = U_ZERO_ERROR;
+	}
+
+	delete icuTimeZoneList;
+
+	return B_OK;
+}

src/kits/locale/LocaleRoster.cpp

@@ -641,6 +641,24 @@ BLocaleRoster::GetInstalledLanguages(BMessage *languages) const
 }
 
 
+// Get all the available countries from ICU
+status_t
+BLocaleRoster::GetAvailableCountries(BMessage *countries) const
+{
+	if (!countries)
+		return B_BAD_VALUE;
+
+	int32 i;
+	const char* const* countryList = uloc_getISOCountries();
+
+	for (i = 0; countryList[i] != NULL; i++) {
+		countries->AddString("countries", countryList[i]);
+	}
+
+	return B_OK;
+}
+
+
 status_t
 BLocaleRoster::GetInstalledCatalogs(BMessage * languageList,
 		const char* sigPattern,	const char* langPattern, int32 fingerprint) const

src/preferences/locale/LocaleWindow.cpp

@@ -168,9 +168,7 @@ LocaleWindow::LocaleWindow()
 		B_WILL_DRAW | B_FRAME_EVENTS, false, true);
 	listView->SetSelectionMessage(new BMessage(kMsgCountrySelection));
 
-	// get all available countries from ICU
-	// Use DateFormat::getAvailableLocale so we get only the one we can
-	// use. Maybe check the NumberFormat one and see if there is more.
+	// get all available countries
 	BMessage countryList;
 	be_locale_roster->GetInstalledLanguages(&countryList);
 	BString countryCode;
@@ -180,7 +178,7 @@ LocaleWindow::LocaleWindow()
 		BCountry country(countryCode);
 		BString countryName;
 
-		country.Name(countryName);
+		country.LocaleName(countryName);
 
 		LanguageListItem* item
 			= new LanguageListItem(countryName, countryCode,
@@ -189,24 +187,6 @@ LocaleWindow::LocaleWindow()
 		if (!strcmp(countryCode, defaultCountry->Code()))
 			listView->Select(listView->CountItems() - 1);
 	}
-	/*
-	int32_t localeCount;
-	const Locale* currentLocale = Locale::getAvailableLocales(localeCount);
-
-	for (int index = 0; index < localeCount; index++) {
-		UnicodeString countryFullName;
-		BString string;
-		BStringByteSink sink(&string);
-		currentLocale[index].getDisplayName(countryFullName);
-		countryFullName.toUTF8(sink);
-
-		LanguageListItem* item
-			= new LanguageListItem(string, currentLocale[index].getName(),
-				NULL);
-		listView->AddItem(item);
-		if (!strcmp(currentLocale[index].getName(), defaultCountry->Code()))
-			listView->Select(listView->CountItems() - 1);
-	}*/
 
 	// TODO: find a real solution intead of this hack
 	listView->SetExplicitMinSize(