BCountry: add a GetPreferredLanguage method.

The APIs for this were introduced in ICU 63, so we'll need an update.
ICU 63 does not build with gcc2, so this method is disabled there.

Change-Id: Iabe49509ed6d4e578560d497d3ca336a97db4625
Reviewed-on: https://review.haiku-os.org/c/haiku/+/1874
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: Jérôme Duval <jerome.duval@gmail.com>

BCountry: add SetTo and InitCheck.

Change-Id: I5fbc2a1c0e735d6edeb23672017bb64d1b3f4390
Reviewed-on: https://review.haiku-os.org/c/haiku/+/1872
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>

Update icu x86_64 package with namespace renaming enabled.

"Renaming" means the icu namespace is suffixed with the version number,
atm icu_55. Using "renaming" allows to use two different versions of ICU,
thus easing upgrades. For instance haikuwebkit uses a current version of ICU,
while the system uses a newer one after an upgrade.

* Replace all uses of the icu namespace in our public headers, with a macro
defaulting to icu. As the namespace is only used for private fields pointers,
there should be no impact.
* Locale kit *.cpp have to import the macro from <unicode/uversion.h> *before*
including any locale headers. Ditto for a Time preferences cpp file. This way,
the correct current icu namespace is referenced.
* Fixes bug #12057.

* update (not-so-)optional package ICU to 4.8.1, which contains interesting stuff
for message formatting
* adjust LocaleKit to use namespace 'icu', as ICU has been configured to no longer
use a version specific namespace
* adjust LocaleKit to general API changes in ICU 4.8
Note: all software using ICU (like WebPositive) needs to be rebuilt!
Note: the ICU package for PPC needs to be updated before it can be used!


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42638 a95241bf-73f2-0310-859d-f6bbb57e9c96

One more monster commit (sorry ...) concerning the Locale Kit:
* extracted new class BFormattingConventions from BCountry, which
manages the formatting conventions from a given locale and
allows to get/set the four different date/time formats supported
by ICU-locales as well as number and monetary formats
* overhauled the Locale preflet:
+ drop editing features for all formats, since I don't think
they do not make much sense to have in a prefs GUI - being
able to select from the existing locales should be good
enough. Please note that you can still change the formats
programmatically in an application.
+ renamed the 'Countries' tab to 'Formatting'
+ the locale formatting conventions list in the 'Formatting'
tab is now hierarchical for easier access (less scrolling)
+ fixed functionality of 'Revert' and 'Defaults' buttons
+ added support for using the month/day-names of your preferred
language during date formatting
* adjusted BLocale to ask BFormattingConventions for the current
formats when formatting dates and times and to offer 4
different format styles (full, long, medium and short).
* adjust all classes formatting dates/times to pick the
appropriate format style
* BLocaleRoster no longer directly archives/unarchives the
individual formatting conventions but delegates that to
BFormattingConventions


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39123 a95241bf-73f2-0310-859d-f6bbb57e9c96

Next step of Locale Kit refactoring:
* BLocale now keeps language and country completely separate and
mixes the formatting conventions into the current language's locale
when formatting dates and times (needs to be done for number- and
currency-formatting, too, since the digits may not be in the
preferred language)
* optimized fetching of the flag icons such that they are all loaded
in one go (by the locale roster) - this alone speeds up the Locale
preflet considerably
* worked on fixing the language confusion in the Locale preflet
* fixed a couple of bugs in the Locale preflet that would lead to
illegal characters being displayed in the date-subpart menus


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39013 a95241bf-73f2-0310-859d-f6bbb57e9c96

* re-added GetAvailableTimeZones() to BCountry - it is now a convenience wrapper
around BLocaleRoster::GetAvailableTimeZonesForCountry()
* minor cleanup

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38412 a95241bf-73f2-0310-859d-f6bbb57e9c96

* moved support for getting timezones-by-country from BCountry to LocaleRoster,
since we'd like to be able to get the timezones of the global (i.e. empty)
country, too.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38380 a95241bf-73f2-0310-859d-f6bbb57e9c96

* moved BDateElement from BCountry to BLocale, as that's where it's being used

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38156 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Remove GetLocaleName from BCountry
* Add GetName to BLocale instead


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37919 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Move the locale-related stuff away from BCountry to BLocale.
* Remove the be_locale global object and go through the be_locale_roster instead
* Rework the storage of data for the be_locale_roster, since BLocale already holds a BCountry and a BLanguage.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37907 a95241bf-73f2-0310-859d-f6bbb57e9c96

Largish cleanup sweep concerning the Locale Kit (sorry it got so big):
* refactored private/mutable stuff out of LocaleRoster into MutableLocaleRoster
* moved management of Locale/Time settings file and broadcasting of any changes
out of preflets and into MutableLocaleRoster
* added proper sorting to the listviews of the Locale preflet
* the Time preflet no longer overlaps long timezone names into the actual time
* several fixes with respect to leaking ICU objects, esp. in BCountry
* the locale roster no longer passes out references to its own BCountry object,
but uses copies, instead - this makes locking superfluous, as the clients'
BCountry objects can no longer be changed by the setting a new default
country in the locale roster
* removed pretty useless POSIX-style symbol fetching from BCountry - if we
need that at all, it should live in the dedicated formatter classes
* adjusted readonlybootprompt, dstcheck and Deskbar to the changed Locale API
* refactored existing Time-formatter into TimeUnitFormat and DurationFormat
(the latter of which is now used by AboutSystem)
* added stubs for Date, DateTime and Time formatters
* lots of coding style fixes throughout the Locale Kit and the Locale and Time
preflets
This will probably break most external apps making use of the Locale Kit - it
does break WebPositive.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37831 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Bcountry : private methods start with underscore. The timezone list isnow actually a list of BTimeZone objects, that holdsall the needed info, not only the code. Also tweak the listing code to
remove duplicatesfromthe list generated by ICU.
* BTimeZone : remove Code, rename Name to GetName. The class is likely to change again for further optimization.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37719 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Add locking system to BCountry to avoid problems with the formatters being deleted while you use them, or created multiple times.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37716 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Style fixes (some pointed out by Axel, some others by the vim stylechecker).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37698 a95241bf-73f2-0310-859d-f6bbb57e9c96

* BCountry : add error checking in case the system runs out of memory, cleanup function prototypes (we don't need virtual, this was a leftover of
OpenTracker days)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37697 a95241bf-73f2-0310-859d-f6bbb57e9c96

* BCountry : use lazy initialisation for the date and time formatters, since they are not always used. Makes instancaiating a country faster, and
so, loading the locale preflet is also faster and use less memory.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37696 a95241bf-73f2-0310-859d-f6bbb57e9c96

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

* BCountry : add copy constructor and assignment operator
* The locale roster uses them instead of messing with pointers, to avoid ownership problems
* The Locale preflet works on a copy of the default country instead of altering it directly


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37649 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Add FormatDate variant returning fields positions and associated DateFields returning their identifiers
* Use them in the time preflet to display and edit the date in a local-aware way


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37551 a95241bf-73f2-0310-859d-f6bbb57e9c96

BDateField is already used in ColumnListView, so use another name for this enum.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37518 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Allow use of unicode character in time view
* Some support for languages having an order different than H:M:S:AM (like chinese). Does not seem to work too well, but I can't spot what I missed
* API to get the infos about the type of each field in a time format


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37517 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Add an API to get a formatted time along with delimiters for the differrent fields, for further parsing/formatting


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37514 a95241bf-73f2-0310-859d-f6bbb57e9c96

Update ICU to 4.4
* Remove 4.2 sourcecode
* ICU is now an optional package (mandatory)
* Adjust the namespaces and libraries names where needed


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37498 a95241bf-73f2-0310-859d-f6bbb57e9c96

Support for setting 12/24Hr mode in locale preflet.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37427 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Introduce a new method in BCountry to get the first day of week (monday or sunday)
* Localize date in deskbar properly, and use the new API to show the calendar. The "show european date" checkbox is now gone.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37344 a95241bf-73f2-0310-859d-f6bbb57e9c96

Add a call in BCountry to get an icon for that country.
Untested and not working yet since we don't provide any icon.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36303 a95241bf-73f2-0310-859d-f6bbb57e9c96

-Started to localize the appearance preflet to find more locale kit bugs. It worked.
-MarkForTranslation was not scanned by collectcatkeys, improved the regexp to take it into account
-Some gristing was missing in jamrules, added a bit, still seem to miss some.
-Replaced $(var:B).ext with $(var:S=.ext) as it is the proper way in order not to loose grist and mess things up
-Removed icu include and replaced direct class nesting with pointer to avoid binary compatibility breakage on ICU updates.
-Fixed TimeFormatSettingsView to properly include needed icu things. Should not be there, actually. Needs cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33210 a95241bf-73f2-0310-859d-f6bbb57e9c96

* reintegrated gsoc-locale-kit branch into trunk - there's more
work to do, but it's about time to give this code more exposure.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33176 a95241bf-73f2-0310-859d-f6bbb57e9c96

Applied patch by PulkoMandy, adjusted and extended by myself:
* integrating most of the locale kit into the build (and image)
* removed LocaleBuild.h and _IMPEXP_LOCALE since that does not make
sense for elf (which usually exports all symbols anyway)
* added a couple of locale kit related pseudo targets for convenience
Hey, some of that stuff already seems to work :-)

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@30545 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Copied imported OpenTracker Locale Kit files from the vendor branch
into their new homes (at least for now, might need some adjustment).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@30540 a95241bf-73f2-0310-859d-f6bbb57e9c96

Update icu x86_64 package with namespace renaming enabled.

"Renaming" means the icu namespace is suffixed with the version number,
atm icu_55. Using "renaming" allows to use two different versions of ICU,
thus easing upgrades. For instance haikuwebkit uses a current version of ICU,
while the system uses a newer one after an upgrade.

* Replace all uses of the icu namespace in our public headers, with a macro
defaulting to icu. As the namespace is only used for private fields pointers,
there should be no impact.
* Locale kit *.cpp have to import the macro from <unicode/uversion.h> *before*
including any locale headers. Ditto for a Time preferences cpp file. This way,
the correct current icu namespace is referenced.
* Fixes bug #12057.

* update (not-so-)optional package ICU to 4.8.1, which contains interesting stuff
for message formatting
* adjust LocaleKit to use namespace 'icu', as ICU has been configured to no longer
use a version specific namespace
* adjust LocaleKit to general API changes in ICU 4.8
Note: all software using ICU (like WebPositive) needs to be rebuilt!
Note: the ICU package for PPC needs to be updated before it can be used!


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42638 a95241bf-73f2-0310-859d-f6bbb57e9c96

One more monster commit (sorry ...) concerning the Locale Kit:
* extracted new class BFormattingConventions from BCountry, which
manages the formatting conventions from a given locale and
allows to get/set the four different date/time formats supported
by ICU-locales as well as number and monetary formats
* overhauled the Locale preflet:
+ drop editing features for all formats, since I don't think
they do not make much sense to have in a prefs GUI - being
able to select from the existing locales should be good
enough. Please note that you can still change the formats
programmatically in an application.
+ renamed the 'Countries' tab to 'Formatting'
+ the locale formatting conventions list in the 'Formatting'
tab is now hierarchical for easier access (less scrolling)
+ fixed functionality of 'Revert' and 'Defaults' buttons
+ added support for using the month/day-names of your preferred
language during date formatting
* adjusted BLocale to ask BFormattingConventions for the current
formats when formatting dates and times and to offer 4
different format styles (full, long, medium and short).
* adjust all classes formatting dates/times to pick the
appropriate format style
* BLocaleRoster no longer directly archives/unarchives the
individual formatting conventions but delegates that to
BFormattingConventions


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39123 a95241bf-73f2-0310-859d-f6bbb57e9c96

Next step of Locale Kit refactoring:
* BLocale now keeps language and country completely separate and
mixes the formatting conventions into the current language's locale
when formatting dates and times (needs to be done for number- and
currency-formatting, too, since the digits may not be in the
preferred language)
* optimized fetching of the flag icons such that they are all loaded
in one go (by the locale roster) - this alone speeds up the Locale
preflet considerably
* worked on fixing the language confusion in the Locale preflet
* fixed a couple of bugs in the Locale preflet that would lead to
illegal characters being displayed in the date-subpart menus


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39013 a95241bf-73f2-0310-859d-f6bbb57e9c96

* re-added GetAvailableTimeZones() to BCountry - it is now a convenience wrapper
around BLocaleRoster::GetAvailableTimeZonesForCountry()
* minor cleanup

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38412 a95241bf-73f2-0310-859d-f6bbb57e9c96

* moved support for getting timezones-by-country from BCountry to LocaleRoster,
since we'd like to be able to get the timezones of the global (i.e. empty)
country, too.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38380 a95241bf-73f2-0310-859d-f6bbb57e9c96

* moved BDateElement from BCountry to BLocale, as that's where it's being used

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38156 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Remove GetLocaleName from BCountry
* Add GetName to BLocale instead


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37919 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Move the locale-related stuff away from BCountry to BLocale.
* Remove the be_locale global object and go through the be_locale_roster instead
* Rework the storage of data for the be_locale_roster, since BLocale already holds a BCountry and a BLanguage.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37907 a95241bf-73f2-0310-859d-f6bbb57e9c96

Largish cleanup sweep concerning the Locale Kit (sorry it got so big):
* refactored private/mutable stuff out of LocaleRoster into MutableLocaleRoster
* moved management of Locale/Time settings file and broadcasting of any changes
out of preflets and into MutableLocaleRoster
* added proper sorting to the listviews of the Locale preflet
* the Time preflet no longer overlaps long timezone names into the actual time
* several fixes with respect to leaking ICU objects, esp. in BCountry
* the locale roster no longer passes out references to its own BCountry object,
but uses copies, instead - this makes locking superfluous, as the clients'
BCountry objects can no longer be changed by the setting a new default
country in the locale roster
* removed pretty useless POSIX-style symbol fetching from BCountry - if we
need that at all, it should live in the dedicated formatter classes
* adjusted readonlybootprompt, dstcheck and Deskbar to the changed Locale API
* refactored existing Time-formatter into TimeUnitFormat and DurationFormat
(the latter of which is now used by AboutSystem)
* added stubs for Date, DateTime and Time formatters
* lots of coding style fixes throughout the Locale Kit and the Locale and Time
preflets
This will probably break most external apps making use of the Locale Kit - it
does break WebPositive.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37831 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Bcountry : private methods start with underscore. The timezone list isnow actually a list of BTimeZone objects, that holdsall the needed info, not only the code. Also tweak the listing code to
remove duplicatesfromthe list generated by ICU.
* BTimeZone : remove Code, rename Name to GetName. The class is likely to change again for further optimization.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37719 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Add locking system to BCountry to avoid problems with the formatters being deleted while you use them, or created multiple times.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37716 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Style fixes (some pointed out by Axel, some others by the vim stylechecker).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37698 a95241bf-73f2-0310-859d-f6bbb57e9c96

* BCountry : add error checking in case the system runs out of memory, cleanup function prototypes (we don't need virtual, this was a leftover of
OpenTracker days)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37697 a95241bf-73f2-0310-859d-f6bbb57e9c96

* BCountry : use lazy initialisation for the date and time formatters, since they are not always used. Makes instancaiating a country faster, and
so, loading the locale preflet is also faster and use less memory.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37696 a95241bf-73f2-0310-859d-f6bbb57e9c96

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

* BCountry : add copy constructor and assignment operator
* The locale roster uses them instead of messing with pointers, to avoid ownership problems
* The Locale preflet works on a copy of the default country instead of altering it directly


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37649 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Add FormatDate variant returning fields positions and associated DateFields returning their identifiers
* Use them in the time preflet to display and edit the date in a local-aware way


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37551 a95241bf-73f2-0310-859d-f6bbb57e9c96

BDateField is already used in ColumnListView, so use another name for this enum.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37518 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Allow use of unicode character in time view
* Some support for languages having an order different than H:M:S:AM (like chinese). Does not seem to work too well, but I can't spot what I missed
* API to get the infos about the type of each field in a time format


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37517 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Add an API to get a formatted time along with delimiters for the differrent fields, for further parsing/formatting


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37514 a95241bf-73f2-0310-859d-f6bbb57e9c96

Update ICU to 4.4
* Remove 4.2 sourcecode
* ICU is now an optional package (mandatory)
* Adjust the namespaces and libraries names where needed


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37498 a95241bf-73f2-0310-859d-f6bbb57e9c96

Support for setting 12/24Hr mode in locale preflet.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37427 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Introduce a new method in BCountry to get the first day of week (monday or sunday)
* Localize date in deskbar properly, and use the new API to show the calendar. The "show european date" checkbox is now gone.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37344 a95241bf-73f2-0310-859d-f6bbb57e9c96

Add a call in BCountry to get an icon for that country.
Untested and not working yet since we don't provide any icon.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36303 a95241bf-73f2-0310-859d-f6bbb57e9c96

-Started to localize the appearance preflet to find more locale kit bugs. It worked.
-MarkForTranslation was not scanned by collectcatkeys, improved the regexp to take it into account
-Some gristing was missing in jamrules, added a bit, still seem to miss some.
-Replaced $(var:B).ext with $(var:S=.ext) as it is the proper way in order not to loose grist and mess things up
-Removed icu include and replaced direct class nesting with pointer to avoid binary compatibility breakage on ICU updates.
-Fixed TimeFormatSettingsView to properly include needed icu things. Should not be there, actually. Needs cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33210 a95241bf-73f2-0310-859d-f6bbb57e9c96

* reintegrated gsoc-locale-kit branch into trunk - there's more
work to do, but it's about time to give this code more exposure.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33176 a95241bf-73f2-0310-859d-f6bbb57e9c96

Applied patch by PulkoMandy, adjusted and extended by myself:
* integrating most of the locale kit into the build (and image)
* removed LocaleBuild.h and _IMPEXP_LOCALE since that does not make
sense for elf (which usually exports all symbols anyway)
* added a couple of locale kit related pseudo targets for convenience
Hey, some of that stuff already seems to work :-)

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@30545 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Copied imported OpenTracker Locale Kit files from the vendor branch
into their new homes (at least for now, might need some adjustment).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@30540 a95241bf-73f2-0310-859d-f6bbb57e9c96