public IEnumerable <ITagSpan <ClassificationTag> > GetTags(Microsoft.VisualStudio.Text.NormalizedSnapshotSpanCollection spans)
{
if (activeSpans == null)
{
yield break;
}
if (activeSpans.Count == 0 || spans.Count == 0)
{
yield break;
}
if (activeSpans[0].Snapshot != spans[0].Snapshot)
{
activeSpans = new NormalizedSnapshotSpanCollection(
activeSpans.Select(
span => span.TranslateTo(spans[0].Snapshot, SpanTrackingMode.EdgeExclusive)
));
}
foreach (var span in NormalizedSnapshotSpanCollection.Overlap(spans, activeSpans))
{
yield return(new TagSpan <ClassificationTag>(span, new ClassificationTag(ClassificationType)));
}
}
/// <summary>
/// Gets a list of tags related to a span
/// </summary>
/// <param name="spans"></param>
/// <returns></returns>
public IEnumerable <ITagSpan <ErrorTag> > GetTags(Microsoft.VisualStudio.Text.NormalizedSnapshotSpanCollection spans)
{
foreach (SnapshotSpan span in spans)
{
foreach (DesignerNode node in nodeProvider.GetNodes(span, node => node.NodeType != NDjango.Interfaces.NodeType.ParsingContext))
{
switch (node.ErrorMessage.Severity)
{
case -1:
case 0:
continue;
case 1:
yield return(new TagSpan <ErrorTag>(node.SnapshotSpan, new ErrorTag(PredefinedErrorTypeNames.Warning)));
break;
default:
yield return(new TagSpan <ErrorTag>(node.SnapshotSpan, new ErrorTag(PredefinedErrorTypeNames.SyntaxError)));
break;
}
}
}
}
public IEnumerable <ITagSpan <TodoGlyphTag> > GetTags(Microsoft.VisualStudio.Text.NormalizedSnapshotSpanCollection spans)
{
foreach (var span in spans)
{
String text = span.GetText();
var match = todoLineRegex.Match(text);
if (match.Success)
{
var point = span.Start.Add(match.Index);
var spanNew = new SnapshotSpan(span.Snapshot, new Span(point.Position, match.Length));
var hasDueBy = false;
if (match.Groups.Count == 2 && match.Groups[1].Value.ToLower() == "by")
{
hasDueBy = true;
}
ITextViewLine line = null;
DateTime? dueDate = null;
string friendly = null;
try
{
line = _textView.Caret.ContainingTextViewLine;
if (hasDueBy)
{
var dateSpan = new SnapshotSpan(span.Snapshot, new Span(point.Position + match.Length, span.Length - match.Length));
var str = dateSpan.GetText();
DateMatcher matcher = new DateMatcher();
dueDate = matcher.FromString(str, out friendly);
// Bail if there isn't a good date found (should give visual feedback to dev).
if (!dueDate.HasValue)
{
continue;
}
}
}
catch (Exception ex)
{
continue;
}
var actions = new ReadOnlyCollection <SmartTagActionSet>(new SmartTagActionSet[] {}.ToList());
if (line != null &&
//_textView.Caret.ContainingTextViewLine.ContainsBufferPosition(span.Start)
//true
_textView.TextSnapshot.GetLineNumberFromPosition(_textView.Caret.Position.BufferPosition) ==
span.Start.GetContainingLine().LineNumber
)
{
actions = GetSmartTagActions(spanNew, dueDate, friendly);
}
yield return(new TagSpan <TodoGlyphTag>(spanNew,
new TodoGlyphTag(SmartTagType.Ephemeral, actions)
));
}
}
}
/// <summary>
/// Gets a list of tags related to a span
/// </summary>
/// <param name="spans"></param>
/// <returns></returns>
public IEnumerable <ITagSpan <Constants.ErrorTag> > GetTags(Microsoft.VisualStudio.Text.NormalizedSnapshotSpanCollection spans)
{
foreach (SnapshotSpan span in spans)
{
foreach (DesignerNode node in nodeProvider.GetNodes(span, node => node.NodeType != NDjango.Interfaces.NodeType.ParsingContext))
{
if (node.ErrorMessage.Severity > -1)
{
yield return(new TagSpan <Constants.ErrorTag>(node.SnapshotSpan, new Constants.ErrorTag()));
}
}
}
}
/// <summary>
/// Computes the difference between two normalized snapshot span collections and normalizes the result.
/// </summary>
/// <param name="left">The collection from which to subtract <paramref name="right"/>.</param>
/// <param name="right">The collection to subtract from <paramref name="left"/>.</param>
/// <returns>The normalized set difference.</returns>
/// <exception cref="ArgumentNullException"><paramref name="left"/> or <paramref name="right"/> is null.</exception>
/// <exception cref="ArgumentException">The input collections refer to different snapshots.</exception>
public static NormalizedSnapshotSpanCollection Difference(NormalizedSnapshotSpanCollection left, NormalizedSnapshotSpanCollection right)
{
if (left == null)
{
throw new ArgumentNullException("left");
}
if (right == null)
{
throw new ArgumentNullException("right");
}
if (left.Count == 0)
{
return(left);
}
if (right.Count == 0)
{
return(left);
}
if (left.snapshot != right.snapshot)
{
throw new ArgumentException(Strings.MismatchedSnapshots);
}
NormalizedSpanCollection leftSpans = left.spans ?? new NormalizedSpanCollection(left.span);
NormalizedSpanCollection rightSpans = right.spans ?? new NormalizedSpanCollection(right.span);
return(new NormalizedSnapshotSpanCollection(left[0].Snapshot, NormalizedSpanCollection.Difference(leftSpans, rightSpans)));
}
/// <summary>
/// Determines whether two snapshot span collections are equal
/// </summary>
/// <param name="obj">The second collection.</param>
/// <returns><c>true</c> if the two collections are equal, otherwise <c>false</c>.</returns>
public override bool Equals(object obj)
{
NormalizedSnapshotSpanCollection set = obj as NormalizedSnapshotSpanCollection;
return(this == set);
}
