public bool RedirectToScreenStart(bool isAutoRunning)
{
if (!isAutoRunning && !EnableRtaa)
{
return(false);
}
var serverTime = ServiceLocator.Current.GetInstance <IBackendModel>().GetUniversialTime();
var canSetWatchPoint = CanSetWatchPoint(serverTime);
if (canSetWatchPoint && (isAutoRunning || !EnableRtaa))
{
var screenStart = base.GetWatchPoint();
SetWatchPoint(serverTime.AddMinutes(-ScreenEnd.Subtract(screenStart).TotalMinutes / 2).TurnToMultiplesOf5());
}
if (!EnableRtaa)
{
return(canSetWatchPoint);
}
// 自动时，如果在时间范围内，开启Timer自动刷新
if (isAutoRunning)
{
Action <DateTime> action = time =>
{
MonitoringPoint = time;
};
if (_timer == null)
{
var seconds = Convert.ToDouble(Application.Current.Resources["RtaaAutoRefreshInterval"]);
_timer = new DispatcherTimer(DispatcherPriority.ContextIdle)
{
Interval = TimeSpan.FromSeconds(seconds < 10 ? 10d : seconds)
};
_timer.Tick += (s, e) => action(ServiceLocator.Current.GetInstance <IBackendModel>().GetUniversialTime());
}
if (canSetWatchPoint)
{
RtaaIsAutoRunning = true;
action(serverTime);
}
}
else//手动，如果开启Timer，那么停止自动刷新
{
RtaaIsAutoRunning = false;
}
if (_timer != null)
{
_timer.IsEnabled = RtaaIsAutoRunning;
}
return(RtaaIsAutoRunning);
}
public DateTime GetCenterOfScreenTime()
{
var screenStart = base.GetWatchPoint();
return(screenStart.AddMinutes(ScreenEnd.Subtract(screenStart).TotalMinutes / 2).TurnToMultiplesOf5());
}
