public IEnumerable <ITagSpan <RegionTag> > GetTags(NormalizedSnapshotSpanCollection snapShotSpans)
{
foreach (SnapshotSpan snapshotSpan in snapShotSpans.Where(IsRegionOrEndRegion))
{
SnapshotPoint?point = View.Caret.Position.Point.GetPoint(SourceBuffer, View.Caret.Position.Affinity);
int pointPosition = point.HasValue ? snapshotSpan.Snapshot.GetLineNumberFromPosition(point.Value) : -1;
int lineNumberFromPosition = snapshotSpan.Snapshot.GetLineNumberFromPosition(snapshotSpan.Start);
int index = snapshotSpan.GetText().IndexOf(Constants.RegionIndicatorCharacter);
SnapshotSpan newSpan = new SnapshotSpan(snapshotSpan.Snapshot, (int)snapshotSpan.Start + index, snapshotSpan.Length - index);
string classificationTypeNames = lineNumberFromPosition != pointPosition
? Constants.InactiveRegionClassificationTypeNames
: Constants.ActiveRegionClassificationTypeNames;
yield return(new TagSpan <RegionTag>(newSpan, new RegionTag(ClassificationTypeRegistryService.GetClassificationType(classificationTypeNames))));
}
}
public static (SnapshotSpan SelectItem1, SnapshotSpan SelectItem2)? SwapTarget(NormalizedSnapshotSpanCollection selectedSpans)
{
var result = new List <SnapshotSpan>();
foreach (var item in selectedSpans.Where(x => !string.IsNullOrEmpty(x.GetText())))
{
result.Add(item);
if (2 < result.Count)
{
return(null);
}
}
if (result.Count == 2)
{
return(result[0], result[1]);
}
return(null);
}