internal void DocumentReopened(ITextDocument document)
{
_document = document;
ITextSnapshot snapshot = document.TextBuffer.CurrentSnapshot;
SnapshotPoint start;
SnapshotPoint end;
if (_useLineIndex)
{
start = PersistentSpan.LineIndexToSnapshotPoint(_startLine, _startIndex, snapshot);
end = PersistentSpan.LineIndexToSnapshotPoint(_endLine, _endIndex, snapshot);
if (end < start)
{
//Guard against the case where _start & _end are something like (100,2) & (101, 1).
//Those points would pass the argument validation (since _endLine > _startLine) but
//would cause problems if the document has only 5 lines since they would map to
//(5, 2) & (5, 1).
end = start;
}
}
else
{
start = new SnapshotPoint(snapshot, Math.Min(_nonTrackingSpan.Start, snapshot.Length));
end = new SnapshotPoint(snapshot, Math.Min(_nonTrackingSpan.End, snapshot.Length));
}
_span = snapshot.CreateTrackingSpan(new SnapshotSpan(start, end), _trackingMode);
_filePath = null;
}
internal PersistentSpan Create(ITextSnapshot snapshot, int startLine, int startIndex, int endLine, int endIndex, SpanTrackingMode trackingMode)
{
var start = PersistentSpan.LineIndexToSnapshotPoint(startLine, startIndex, snapshot);
var end = PersistentSpan.LineIndexToSnapshotPoint(endLine, endIndex, snapshot);
if (end < start)
{
end = start;
}
return(this.Create(new SnapshotSpan(start, end), trackingMode));
}
public IPersistentSpan Create(ITextSnapshot snapshot, int startLine, int startIndex, int endLine, int endIndex, SpanTrackingMode trackingMode)
{
ITextDocument document;
if (this.TextDocumentFactoryService.TryGetTextDocument(snapshot.TextBuffer, out document))
{
var start = PersistentSpan.LineIndexToSnapshotPoint(startLine, startIndex, snapshot);
var end = PersistentSpan.LineIndexToSnapshotPoint(endLine, endIndex, snapshot);
if (end < start)
{
end = start;
}
PersistentSpan persistentSpan = new PersistentSpan(document, new SnapshotSpan(start, end), trackingMode, this);
this.AddSpan(document, persistentSpan);
return(persistentSpan);
}
return(null);
}
internal void DocumentReopened()
{
ITextSnapshot snapshot = this.SpanSet.Document.TextBuffer.CurrentSnapshot;
SnapshotPoint start;
SnapshotPoint end;
if (_useLineIndex)
{
start = PersistentSpan.LineIndexToSnapshotPoint(_startLine, _startIndex, snapshot);
end = PersistentSpan.LineIndexToSnapshotPoint(_endLine, _endIndex, snapshot);
if (end < start)
{
//Guard against the case where _start & _end are something like (100,2) & (101, 1).
//Those points would pass the argument validation (since _endLine > _startLine) but
//would cause problems if the document has only 5 lines since they would map to
//(5, 2) & (5, 1).
end = start;
}
}
else
{
start = new SnapshotPoint(snapshot, Math.Min(_originalSpan.Start, snapshot.Length));
end = new SnapshotPoint(snapshot, Math.Min(_originalSpan.End, snapshot.Length));
}
var snapshotSpan = new SnapshotSpan(start, end);
_span = snapshot.CreateTrackingSpan(snapshotSpan, _trackingMode);
_originalSpan = snapshotSpan;
_originalVersion = snapshot.Version;
PersistentSpan.SnapshotPointToLineIndex(snapshotSpan.Start, out _startLine, out _startIndex);
PersistentSpan.SnapshotPointToLineIndex(snapshotSpan.End, out _endLine, out _endIndex);
}