public void CreateTags(IEnumerable <UI.ViewModel.MatchNode> matches)
{
using (m_storage.Update())
{
m_storage.RemoveTagSpans(s => true);
if (matches == null)
{
return;
}
var snapshot = m_buffer.CurrentSnapshot;
foreach (var match in matches)
{
var matchInfo = new MatchInfo(match.Index);
foreach (var group in match.Groups)
{
if (group.Number == 0)
{
continue;
}
if (!group.Success)
{
continue;
}
var groupInfo = new GroupInfo(matchInfo, group.Index, group.Number, group.Name);
foreach (var capture in group.Captures)
{
var captureInfo = new CaptureInfo(groupInfo, capture.Index);
if (capture.Segment != null &&
0 < capture.Segment.Length &&
snapshot.TryCreateTrackingSpan(capture.Segment.Start, capture.Segment.Length, out var span))
{
// we do not add group with index 0 so it is better to adjust indices
var classificationType = GetGroupClassificationType(captureInfo.Parent.Index - 1);
m_storage.CreateTagSpan(span, new CaptureTag(captureInfo, classificationType));
}
}
}
}
m_storage.PinSnapshot(snapshot);
}
}
public void Hightlight(Int32 start, Int32 length)
{
using (m_storage.Update())
{
m_storage.RemoveTagSpans(s => true);
if (m_view.TextBuffer.CurrentSnapshot.TryCreateTrackingSpan(start, length, out var span))
{
if (length == 0)
{
var textHeightAbove = m_view.FormattedLineSource.TextHeightAboveBaseline;
var textHeightBelow = m_view.FormattedLineSource.TextHeightBelowBaseline;
var columnWidth = m_view.FormattedLineSource.ColumnWidth;
var lineHeight = m_view.FormattedLineSource.LineHeight;
var adornment = CreateAdornment(columnWidth, lineHeight);
SetLayoutOptions(adornment);
adornment.Measure(new Size(Double.PositiveInfinity, Double.PositiveInfinity));
m_storage.CreateTagSpan(span,
new IntraTextAdornmentTag(
adornment,
null,
0,
textHeightAbove,
0, //textHeightAbove + textHeightBelow,
0,
PositionAffinity.Predecessor));
}
else
{
m_storage.CreateTagSpan(span, new HightlightTag());
}
}
}
}
