public ClockViewModel(ClockInfo info, TimeShiftProvider timeShiftProvider)
{
_info = info;
_timeShiftProvider = timeShiftProvider;
_timeZoneService = TimeZoneService.FindSystemTimeZoneById(_info.TimeZoneId);
_timer.Tick += OnTimerTick;
Delete = new RelayCommand(() => ViewModelStorage.Main.DeleteClock(_info)); //Clean-up
CalculateTime();
_timeShiftProvider.PropertyChanged += (s, e) => CalculateTime();
}
public bool Equals(ITimeZoneEx other)
{
if (ReferenceEquals(null, other))
{
return(false);
}
if (ReferenceEquals(this, other))
{
return(true);
}
return(Id.Equals(other.Id));
}
public static TimeZoneSelectItem ToTimeZoneSelectItem(this ITimeZoneEx tz)
{
return(new TimeZoneSelectItem()
{
Id = tz.Id,
DisplayName = string.Format("(UTC{0}{1}) {2}",
tz.BaseUtcOffset.Hours > 0 ? "+" : string.Empty,
tz.BaseUtcOffset,
tz.DaylightName),
UtcOffset = tz.BaseUtcOffset
});
}
/// <summary>
/// Sets the specified timezone on the date without converting the time
/// </summary>
/// <param name="dateTimeOffset"></param>
/// <param name="timeZone"></param>
/// <returns></returns>
public static DateTimeOffset SpecifyTimeZone(DateTimeOffset dateTimeOffset, ITimeZoneEx timeZone)
{
if (timeZone == null)
{
throw new ArgumentNullException("timeZone");
}
// Treat the date as UTC
var dateAsUtc = DateTime.SpecifyKind(dateTimeOffset.DateTime, DateTimeKind.Utc);
// This is to find the correct offset
var asLocal = timeZone.ConvertTime(dateAsUtc);
return(new DateTimeOffset(DateTime.SpecifyKind(dateAsUtc, DateTimeKind.Unspecified), asLocal.Offset));
}
public ClockItem(string tzoneId)
{
_tz = TimeZoneService.FindSystemTimeZoneById(tzoneId);
TimeZone = _tz.ToTimeZoneSelectItem();
//TimerTask = new AsyncTimer(1000).WhenTick(i => OnOneSecondPassed()).StartAsync();
var timer = new DispatcherTimer { Interval = TimeSpan.FromSeconds(1) };
timer.Tick += (sender, o) =>
{
var offset = _tz.ConvertTime(DateTime.Now);
Time = offset.DateTime;
OnPropertyChanged("Time");
};
timer.Start();
}
public ClockItem(string tzoneId)
{
_tz = TimeZoneService.FindSystemTimeZoneById(tzoneId);
TimeZone = _tz.ToTimeZoneSelectItem();
//TimerTask = new AsyncTimer(1000).WhenTick(i => OnOneSecondPassed()).StartAsync();
var timer = new DispatcherTimer {
Interval = TimeSpan.FromSeconds(1)
};
timer.Tick += (sender, o) =>
{
var offset = _tz.ConvertTime(DateTime.Now);
Time = offset.DateTime;
OnPropertyChanged("Time");
};
timer.Start();
}
private DateTime CalculateTime(ITimeZoneEx timeService)
{
var dateTimeOffset = timeService.ConvertTime(DateTime.Now);
return dateTimeOffset.DateTime + _timeShiftProvider.TimeShift;
}
/// <summary>
/// Sets the specified timezone on the date without converting the time
/// </summary>
/// <param name="dateTimeOffset"></param>
/// <param name="timeZone"></param>
/// <returns></returns>
public static DateTimeOffset SpecifyTimeZone(DateTimeOffset dateTimeOffset, ITimeZoneEx timeZone)
{
if (timeZone == null)
throw new ArgumentNullException("timeZone");
// Treat the date as UTC
var dateAsUtc = DateTime.SpecifyKind(dateTimeOffset.DateTime, DateTimeKind.Utc);
// This is to find the correct offset
var asLocal = timeZone.ConvertTime(dateAsUtc);
return new DateTimeOffset(DateTime.SpecifyKind(dateAsUtc, DateTimeKind.Unspecified), asLocal.Offset);
}