added: winix functions: locale, timezone

changed: time zones -- now we have the daylight saving time
       different for each year (start, end)
added: config option: time_zone_id (size_t)
       time zone identifier for not logged users
       or for newly created accounts
       those identifiers you can see in etc/time_zones.conf file
       or by using timezone winix function with 'a' parameter (timezone/a) (!!IMPROVE ME NOT IMPLEMENTED YET)
       default: 34 (Coordinated Universal Time UTC+00:00)
added: config option: locale_default_id (size_t)
       locale for not logged users
       or for newly created accounts
added: config option: locale_max_id (size_t)
       a maximum value of a locale identifier
       default: 100 (maximum: 1000)
       each locale files should have its own identifier (in "winix_locale_id" field)
       from zero to this value
added: config option: time_zone_max_id (size_t)
       maximum value of a time zone identifier
       time zones with an id greater than this will be skipped
       default: 130 (maximum: 1000)
removed: config option: locale_default



git-svn-id: svn://ttmath.org/publicrep/winix/trunk@852 e52654a7-88a9-db11-a3e9-0013d4bc506e

core/system.cpp

@@ -69,6 +69,7 @@ void System::ReadTimeZones()
 	name_temp += '/';
 	name_temp += config->time_zones_file;
 
+	time_zones.SetTimeZoneMaxId(config->time_zone_max_id);
 	time_zones.ReadTimeZones(name_temp);
 }
 
@@ -894,30 +895,40 @@ return status;
 
 
 
-time_t System::ToLocal(time_t gmt_time)
+time_t System::ToLocal(time_t utc_time)
 {
-time_t local_time;
+size_t tz_id;
 
 	if( cur->session && cur->session->puser )
-		local_time = cur->session->puser->time_zone.ToLocal(gmt_time);
+		tz_id = cur->session->puser->time_zone_id;
 	else
-		local_time = config->time_zone.ToLocal(gmt_time);
+		tz_id = config->time_zone_default_id;
 
-return local_time;
+	TimeZone * tz = time_zones.GetZone(tz_id);
+
+	if( tz )
+		return tz->ToLocal(utc_time);
+
+return utc_time;
 }
 
 
 
-PT::Date System::ToLocal(const PT::Date & gmt_date)
+PT::Date System::ToLocal(const PT::Date & utc_date)
 {
-PT::Date local_date;
+size_t tz_id;
 
 	if( cur->session && cur->session->puser )
-		local_date = cur->session->puser->time_zone.ToLocal(gmt_date);
+		tz_id = cur->session->puser->time_zone_id;
 	else
-		local_date = config->time_zone.ToLocal(gmt_date);
+		tz_id = config->time_zone_default_id;
 
-return local_date;
+	TimeZone * tz = time_zones.GetZone(tz_id);
+
+	if( tz )
+		return tz->ToLocal(utc_date);
+
+return utc_date;
 }
 
 
@@ -925,28 +936,38 @@ return local_date;
 
 time_t System::ToUTC(time_t local_time)
 {
-time_t utc_time;
+size_t tz_id;
 
 	if( cur->session && cur->session->puser )
-		utc_time = cur->session->puser->time_zone.ToUTC(local_time);
+		tz_id = cur->session->puser->time_zone_id;
 	else
-		utc_time = config->time_zone.ToUTC(local_time);
+		tz_id = config->time_zone_default_id;
 
-return utc_time;
+	TimeZone * tz = time_zones.GetZone(tz_id);
+
+	if( tz )
+		return tz->ToUTC(local_time);
+
+return local_time;
 }
 
 
 
 PT::Date System::ToUTC(const PT::Date & local_date)
 {
-PT::Date utc_date;
+size_t tz_id;
 
 	if( cur->session && cur->session->puser )
-		utc_date = cur->session->puser->time_zone.ToUTC(local_date);
+		tz_id = cur->session->puser->time_zone_id;
 	else
-		utc_date = config->time_zone.ToUTC(local_date);
+		tz_id = config->time_zone_default_id;
 
-return utc_date;
+	TimeZone * tz = time_zones.GetZone(tz_id);
+
+	if( tz )
+		return tz->ToUTC(local_date);
+
+return local_date;
 }