/// ------------------------------------------------------------------------------------
public void SetIgnoredFlagForSegment(AnnotationSegment segment, bool ignore)
{
if (segment != null)
{
var segmentIndex = TimeTier.GetIndexOfSegment(segment);
var timeRange = segment.TimeRange.Copy();
if (ignore)
{
Action restoreState = GetActionToRestoreStateWhenUndoingAnIgnore(segment);
Tiers.MarkSegmentAsIgnored(segmentIndex);
_undoStack.Push(new SegmentChange(SegmentChangeType.Ignored, timeRange, timeRange, sc =>
{
Tiers.MarkSegmentAsUnignored(segmentIndex);
restoreState();
}));
}
else
{
Tiers.MarkSegmentAsUnignored(segmentIndex);
_undoStack.Push(new SegmentChange(SegmentChangeType.Unignored, timeRange, timeRange,
sc => Tiers.MarkSegmentAsIgnored(segmentIndex)));
}
}
else
{
if (!ignore)
{
throw new InvalidOperationException("New segment can never be unignored.");
}
AddIgnoredSegment(VirtualBoundaryBeyondLastSegment);
}
}