internal SnapshotSpan GetCurrentSpanInSnapshot(ViewTextSpan originalSpan, ITextSnapshot textSnapshot)
{
var start = _disconnectedBufferGraph.ViewSnapshot.CreateTrackingPoint(originalSpan.TextSpan.Start, PointTrackingMode.Negative).GetPosition(textSnapshot);
var end = Math.Max(start, this.CommitTrackingSpanEndPoint.GetPosition(textSnapshot));
return(new SnapshotSpan(
textSnapshot, Span.FromBounds(start, end)));
}
internal string GetCurrentTextInSnapshot(
ViewTextSpan originalSpan,
ITextSnapshot textSnapshot,
int?endPoint = null)
{
var currentSpan = GetCurrentSpanInSnapshot(originalSpan, textSnapshot);
var startPosition = currentSpan.Start;
var endPosition = endPoint.HasValue ? endPoint.Value : currentSpan.End;
// TODO(cyrusn): What to do if the span is empty, or the end comes before the start.
// Can that even happen? Not sure, so we'll just be resilient just in case.
return(startPosition <= endPosition
? textSnapshot.GetText(Span.FromBounds(startPosition, endPosition))
: string.Empty);
}
internal string GetCurrentTextInSnapshot(
ViewTextSpan originalSpan,
ITextSnapshot textSnapshot,
int? endPoint = null)
{
var currentSpan = GetCurrentSpanInSnapshot(originalSpan, textSnapshot);
var startPosition = currentSpan.Start;
var endPosition = endPoint.HasValue ? endPoint.Value : currentSpan.End;
// TODO(cyrusn): What to do if the span is empty, or the end comes before the start.
// Can that even happen? Not sure, so we'll just be resilient just in case.
return startPosition <= endPosition
? textSnapshot.GetText(Span.FromBounds(startPosition, endPosition))
: string.Empty;
}
internal SnapshotSpan GetCurrentSpanInSnapshot(ViewTextSpan originalSpan, ITextSnapshot textSnapshot)
{
var start = _disconnectedBufferGraph.ViewSnapshot.CreateTrackingPoint(originalSpan.TextSpan.Start, PointTrackingMode.Negative).GetPosition(textSnapshot);
var end = Math.Max(start, this.CommitTrackingSpanEndPoint.GetPosition(textSnapshot));
return new SnapshotSpan(
textSnapshot, Span.FromBounds(start, end));
}
