public void SetTimeRegion(double originalRegionBegin, double originalRegionEnd, double finalRegionBegin, double finalRegionEnd)
{
using (SceneEditTransaction editTransaction = this.ViewModel.CreateEditTransaction(StringTable.UndoUnitMoveScheduledProperties))
{
double scaleFactor = (finalRegionEnd - finalRegionBegin) / (originalRegionEnd - originalRegionBegin);
TimeRegionChangeDetails details = TimeRegionChangeDetails.None;
if (Tolerances.AreClose(originalRegionEnd - originalRegionBegin, 0.0))
{
details |= TimeRegionChangeDetails.FromZero;
}
if (Tolerances.AreClose(finalRegionEnd - finalRegionBegin, 0.0))
{
details |= TimeRegionChangeDetails.ToZero;
}
if (!Tolerances.AreClose(scaleFactor, 1.0))
{
details |= TimeRegionChangeDetails.Scale;
}
if (!Tolerances.AreClose(originalRegionBegin, finalRegionBegin))
{
details |= TimeRegionChangeDetails.Translate;
}
this.RecursiveSetTimeRegion(details, scaleFactor, originalRegionBegin, originalRegionEnd, finalRegionBegin, finalRegionEnd);
editTransaction.Commit();
}
}
private void RecursiveSetTimeRegion(TimeRegionChangeDetails details, double scaleFactor, double originalRegionBegin, double originalRegionEnd, double finalRegionBegin, double finalRegionEnd)
{
StoryboardTimelineSceneNode timelineSceneNode = this as StoryboardTimelineSceneNode;
if (timelineSceneNode != null)
{
for (int index = 0; index < timelineSceneNode.Children.Count; ++index)
{
timelineSceneNode.Children[index].RecursiveSetTimeRegion(details, scaleFactor, originalRegionBegin, originalRegionEnd, finalRegionBegin, finalRegionEnd);
}
}
this.SetTimeRegionCore(details, scaleFactor, originalRegionBegin, originalRegionEnd, finalRegionBegin, finalRegionEnd);
}
protected virtual void SetTimeRegionCore(TimeRegionChangeDetails details, double scaleFactor, double originalRegionBegin, double originalRegionEnd, double finalRegionBegin, double finalRegionEnd)
{
if ((details & TimeRegionChangeDetails.FromZero) != TimeRegionChangeDetails.None || (details & TimeRegionChangeDetails.ToZero) != TimeRegionChangeDetails.None)
{
this.Begin = finalRegionBegin;
this.Duration = finalRegionEnd - finalRegionBegin;
}
else if ((details & TimeRegionChangeDetails.Scale) != TimeRegionChangeDetails.None)
{
System.Windows.Duration?nullable = this.GetLocalOrDefaultValueAsWpf(TimelineSceneNode.DurationProperty) as System.Windows.Duration?;
this.Duration = (!nullable.HasValue || !nullable.Value.HasTimeSpan ? this.NaturalDuration : nullable.Value.TimeSpan.TotalSeconds) * scaleFactor;
this.Begin = (this.Begin - originalRegionBegin) * scaleFactor + finalRegionBegin;
}
else
{
if ((details & TimeRegionChangeDetails.Translate) == TimeRegionChangeDetails.None)
{
return;
}
this.Begin += finalRegionBegin - originalRegionBegin;
}
}
protected override void SetTimeRegionCore(TimeRegionChangeDetails details, double scaleFactor, double originalRegionBegin, double originalRegionEnd, double finalRegionBegin, double finalRegionEnd)
{
if ((details & TimeRegionChangeDetails.ToZero) != TimeRegionChangeDetails.None)
{
IList <KeyFrameSceneNode> keyFrameCollection = this.KeyFrameCollection;
if (keyFrameCollection.Count > 0)
{
for (int index = keyFrameCollection.Count - 1; index > 0; --index)
{
this.RemoveKeyFrame(keyFrameCollection[index].Time);
}
keyFrameCollection[0].Time = finalRegionBegin;
}
}
if ((details & TimeRegionChangeDetails.Scale) != TimeRegionChangeDetails.None && (details & TimeRegionChangeDetails.FromZero) == TimeRegionChangeDetails.None)
{
IList <KeyFrameSceneNode> keyFrameCollection = this.KeyFrameCollection;
for (int index = 0; index < keyFrameCollection.Count; ++index)
{
KeyFrameSceneNode keyFrameSceneNode = keyFrameCollection[index];
keyFrameSceneNode.Time = (keyFrameSceneNode.Time - originalRegionBegin) * scaleFactor + finalRegionBegin;
}
}
else
{
if ((details & TimeRegionChangeDetails.Translate) == TimeRegionChangeDetails.None)
{
return;
}
double num = finalRegionBegin - originalRegionBegin;
IList <KeyFrameSceneNode> keyFrameCollection = this.KeyFrameCollection;
for (int index = 0; index < keyFrameCollection.Count; ++index)
{
keyFrameCollection[index].Time += num;
}
}
}
protected override void SetTimeRegionCore(TimeRegionChangeDetails details, double scaleFactor, double originalRegionBegin, double originalRegionEnd, double finalRegionBegin, double finalRegionEnd)
{
}
