/**
Set the current time zone
@param const int timezone Time zone value to set in minutes. Verify: localtime = UTC + timezone
@return bool true if successfull, false if errors (see CGErrorMgr::GetLastWinMsg())
**/
bool CTime::SetTimeZone(const int timezone)
{
#ifdef WIN32
TIME_ZONE_INFORMATION tzi;
if (GetTimeZoneInformation(&tzi) == TIME_ZONE_ID_INVALID)
return false;
tzi.Bias = -(long)(timezone);
if (!SetTimeZoneInformation(&tzi))
return false;
return true;
#else
if (system("tzselect > /var/tmp/tz_out.txt") != 0) {
return false;
}
FILE *f;
CString zonename;
if ((f = fopen("/var/tmp/tz_out.txt", "r"))) {
char buffer[128];
//unsigned long len, cnt = 0;
if ( fscanf(f, "%s", buffer) != 1)
{
fclose (f);
return false;
}
zonename = buffer;
fclose (f);
} else {
return false;
}
return SetTimeZoneName(zonename);
#endif
}
BOOL My_SetTimeZoneInformation()
{
CONST TIME_ZONE_INFORMATION * lpTimeZoneInformation=NULL;
BOOL returnVal_Real = NULL;
BOOL returnVal_Intercepted = NULL;
DWORD error_Real = 0;
DWORD error_Intercepted = 0;
disableInterception();
returnVal_Real = SetTimeZoneInformation (lpTimeZoneInformation);
error_Real = GetLastError();
enableInterception();
returnVal_Intercepted = SetTimeZoneInformation (lpTimeZoneInformation);
error_Intercepted = GetLastError();
return ((returnVal_Real == returnVal_Intercepted) && (error_Real == error_Intercepted));
}
/**
* Sets the system time to GPS time if not yet done and
* defined in settings
*/
static void
SystemClockTimer()
{
#ifdef WIN32
const NMEAInfo &basic = CommonInterface::Basic();
// Altair doesn't have a battery-backed up realtime clock,
// so as soon as we get a fix for the first time, set the
// system clock to the GPS time.
static bool sysTimeInitialised = false;
if (basic.alive &&
CommonInterface::GetComputerSettings().set_system_time_from_gps
&& basic.gps.real
/* assume that we only have a valid date and time when we have a
full GPS fix */
&& basic.location_available
&& !sysTimeInitialised) {
SYSTEMTIME sysTime;
::GetSystemTime(&sysTime);
sysTime.wYear = (unsigned short)basic.date_time_utc.year;
sysTime.wMonth = (unsigned short)basic.date_time_utc.month;
sysTime.wDay = (unsigned short)basic.date_time_utc.day;
sysTime.wHour = (unsigned short)basic.date_time_utc.hour;
sysTime.wMinute = (unsigned short)basic.date_time_utc.minute;
sysTime.wSecond = (unsigned short)basic.date_time_utc.second;
sysTime.wMilliseconds = 0;
::SetSystemTime(&sysTime);
#if defined(_WIN32_WCE) && defined(GNAV)
TIME_ZONE_INFORMATION tzi;
tzi.Bias = - CommonInterface::GetComputerSettings().utc_offset / 60;
_tcscpy(tzi.StandardName,TEXT("Altair"));
tzi.StandardDate.wMonth= 0; // disable daylight savings
tzi.StandardBias = 0;
_tcscpy(tzi.DaylightName,TEXT("Altair"));
tzi.DaylightDate.wMonth= 0; // disable daylight savings
tzi.DaylightBias = 0;
SetTimeZoneInformation(&tzi);
#endif
sysTimeInitialised =true;
} else if (!basic.alive)
/* set system clock again after a device reconnect; the new device
may have a better GPS time */
sysTimeInitialised = false;
#else
// XXX
#endif
}
static VOID
SetLocalTimeZone(HWND hwnd)
{
TIME_ZONE_INFORMATION TimeZoneInformation;
PTIMEZONE_ENTRY Entry;
DWORD dwIndex;
DWORD i;
dwIndex = (DWORD)SendMessageW(hwnd,
CB_GETCURSEL,
0,
0);
i = 0;
Entry = TimeZoneListHead;
while (i < dwIndex)
{
if (Entry == NULL)
return;
i++;
Entry = Entry->Next;
}
wcscpy(TimeZoneInformation.StandardName,
Entry->StandardName);
wcscpy(TimeZoneInformation.DaylightName,
Entry->DaylightName);
TimeZoneInformation.Bias = Entry->TimezoneInfo.Bias;
TimeZoneInformation.StandardBias = Entry->TimezoneInfo.StandardBias;
TimeZoneInformation.DaylightBias = Entry->TimezoneInfo.DaylightBias;
memcpy(&TimeZoneInformation.StandardDate,
&Entry->TimezoneInfo.StandardDate,
sizeof(SYSTEMTIME));
memcpy(&TimeZoneInformation.DaylightDate,
&Entry->TimezoneInfo.DaylightDate,
sizeof(SYSTEMTIME));
/* Set time zone information */
SetTimeZoneInformation(&TimeZoneInformation);
}
