public void CancelCurrent()
{
if (Nodes.Count > 0)
{
TimeNode last = Nodes.Last();
if (last.Stop == null)
{
Nodes.Remove(last);
}
}
}
public void Stop(Time stop)
{
if (Nodes.Count > 0)
{
TimeNode last = Nodes.Last();
if (last.Stop == null)
{
last.Stop = stop;
}
}
Nodes.OrderBy(tn => tn.Start.MSeconds);
}
public TimeNode Join(TimeNode tn)
{
if (tn.Stop < Start || tn.Start > Stop)
{
return(null);
}
else
{
return new TimeNode {
Start = new Time(Math.Min(Start.MSeconds, tn.Start.MSeconds)),
Stop = new Time(Math.Max(Stop.MSeconds, tn.Stop.MSeconds))
}
};
}
public TimeNode Start(Time start, string name = null)
{
TimeNode tn;
if (name == null)
{
name = Name;
}
Stop(start);
tn = new TimeNode {
Name = name, Start = start
};
Nodes.Add(tn);
return(tn);
}
public TimeNode Intersect(TimeNode tn)
{
if (tn.Stop == null || tn.Start == null || Start == null || Stop == null)
{
return(null);
}
if (tn.Stop <= Start || tn.Start >= Stop)
{
return(null);
}
else
{
return new TimeNode {
Start = new Time(Math.Max(Start.MSeconds, tn.Start.MSeconds)),
Stop = new Time(Math.Min(Stop.MSeconds, tn.Stop.MSeconds))
}
};
}
#endregion
}
/// <summary>
/// Resynchronize events with the periods synced with the video file.
/// Imported projects or fake analysis projects create events assuming periods
/// don't have gaps between them.
/// After adding a file to the project and synchronizing the periods with the
/// video file, all events must be offseted with the new start time of the period.
///
/// Before sync:
/// Period 1: start=00:00:00 Period 2: start=00:30:00
/// evt1 00:10:00 evt2 00:32:00
/// After sync:
/// Period 1: start=00:05:00 Period 2: start= 00:39:00
/// evt1 00:15:00 evt2 00:41:00
/// </summary>
/// <param name="oldPeriods">The periods baseline to sync against.</param>
public void ResyncEvents(IList <Period> oldPeriods)
{
RangeObservableCollection <TimelineEvent> newTimeline = new RangeObservableCollection <TimelineEvent> ();
if (oldPeriods.Count != Periods.Count)
{
throw new IndexOutOfRangeException(
"Periods count is different from the project's ones");
}
for (int i = 0; i < oldPeriods.Count; i++)
{
Period oldPeriod = oldPeriods [i];
TimeNode oldTN = oldPeriod.PeriodNode;
TimeNode newTN = Periods [i].PeriodNode;
Time diff = newTN.Start - oldTN.Start;
/* Find the events in this period */
var periodEvents = Timeline.Where(e =>
e.EventTime >= oldTN.Start &&
e.EventTime <= oldTN.Stop).ToList();
/* Apply new offset and move the new timeline so that the next
* iteration for the following period does not use them anymore */
periodEvents.ForEach(e => {
e.Move(diff);
newTimeline.Add(e);
Timeline.Remove(e);
});
foreach (TimeNode tn in oldPeriod.Nodes)
{
tn.Move(diff);
}
}
Timeline = newTimeline;
}
protected override void CollectionChanged(object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
{
if (Count != 0 && Duration != null)
{
if (VisibleRegion == null)
{
VisibleRegion = new TimeNode {
Start = new Time(0), Stop = new Time(Duration.MSeconds)
};
}
else
{
if (VisibleRegion.Start > Duration)
{
VisibleRegion.Start = new Time(0);
}
if (VisibleRegion.Stop > Duration)
{
VisibleRegion.Stop = new Time(Duration.MSeconds);
}
}
}
base.CollectionChanged(sender, e);
}