public IEnumerable <ITagSpan <ClassificationTag> > GetTags(NormalizedSnapshotSpanCollection spans)
{
if (spans.Count == 0)
{
yield break;
}
if (firsttime)
{
bool newversion;
_languangeService.Parse(_buffer, out newversion);
firsttime = false;
}
ITextSnapshot currentSnapshot = _buffer.CurrentSnapshot;
var ts = _languangeService.GetClassificationInfo(filepath);
var lines = currentSnapshot.Lines.ToArray();
foreach (var t in ts)
{
TextSpan scope = t.Item2;
if (t.Item4 == SQDeclarationType.Class ||
t.Item4 == SQDeclarationType.Enum)
{
scope = t.Item1;
}
if (scope.iEndLine == -1 || scope.iStartLine == -1 ||
scope.iEndLine >= currentSnapshot.LineCount || scope.iStartLine >= currentSnapshot.LineCount)
{
continue;
}
int length = 0;
string collpasedlabel = t.Item3;
SnapshotPoint?start = null;
try
{
var startLine = lines[scope.iStartLine];
var endLine = lines[scope.iEndLine];
start = startLine.Start + scope.iStartIndex;
length = (endLine.Start - startLine.Start) + scope.iEndIndex - scope.iStartIndex;
if (start.Value.Position + length >= currentSnapshot.Length)
{
length = currentSnapshot.Length - start.Value.Position;
}
}
catch (Exception)
{
length = 0;
}
if (length > 0 && start != null)
{
bool update = false;
SnapshotSpan snap = new SnapshotSpan(start.Value, length);
foreach (var nspan in spans)
{
var line = currentSnapshot.GetLineFromPosition(nspan.Start);
if (line.Extent.IntersectsWith(snap))
{
update = true;
break;
}
}
if (!update)
{
continue;
}
if (ForceNewVersion)
{
TagsChanged(this, new SnapshotSpanEventArgs(snap));
}
switch (t.Item4)
{
case SQDeclarationType.AttributeScope:
yield return(new TagSpan <ClassificationTag>(snap, _attribtag)); break;
case SQDeclarationType.CommentScope:
yield return(new TagSpan <ClassificationTag>(snap, _commenttag)); break;
case SQDeclarationType.LiteralScope:
yield return(new TagSpan <ClassificationTag>(snap, _stringtag)); break;
case SQDeclarationType.Extend:
case SQDeclarationType.Class:
yield return(new TagSpan <ClassificationTag>(snap, _classtag)); break;
case SQDeclarationType.Enum:
yield return(new TagSpan <ClassificationTag>(snap, _enumtag)); break;
case SQDeclarationType.SubName:
yield return(new TagSpan <ClassificationTag>(snap, _subnametag)); break;
case SQDeclarationType.Number:
yield return(new TagSpan <ClassificationTag>(snap, _numberictag)); break;
case SQDeclarationType.KeyWord:
yield return(new TagSpan <ClassificationTag>(snap, _keywordtag)); break;
}
}
}
ForceNewVersion = false;
/* if (cachekeys != null)
* {
* foreach (var kwspan in cachekeys)
* {
* bool cancel = false;
* foreach (var nokwspan in nokeywordspans)
* {
* if (nokwspan.Contains(kwspan.Position))//nokwspan.IntersectsWith(kwspan))
* {
* cancel = true;
* break;
* }
* }
* if (cancel)
* yield break;
*
* SnapshotSpan keysnap = new SnapshotSpan(currentSnapshot, kwspan.Position, kwspan.Length);
* if (ForceNewVersion)
* // TagsChanged(this, new SnapshotSpanEventArgs(keysnap));
*
* yield return new TagSpan<ClassificationTag>(keysnap, _keywordtag);
* }
* }*/
/*foreach (var t in _currentTags)
* {
* yield return t;
* }*/
}
public IEnumerable <ITagSpan <IOutliningRegionTag> > GetTags(NormalizedSnapshotSpanCollection spans)
{
if (spans.Count == 0)
{
yield break;
}
ITextSnapshot currentSnapshot = _buffer.CurrentSnapshot;
/*_CompilerError errors = null;
* SQDeclaration sqdec = _languangeService.Parse(currentSnapshot.TextBuffer, ref errors);
* if (sqdec == null)
* yield return null;
* _textspans.Clear();
* GetSpans(_textspans, sqdec);*/
var ts = _languangeService.GetClassificationInfo(filepath);
foreach (var t in ts)
{
SQDeclarationType type = t.Item4;
if (type == SQDeclarationType.Class ||
type == SQDeclarationType.Function ||
type == SQDeclarationType.Scope ||
type == SQDeclarationType.AttributeScope ||
type == SQDeclarationType.Enum ||
type == SQDeclarationType.Constructor ||
type == SQDeclarationType.CommentScope)
{
var scope = t.Item2;
if (scope.iStartLine == scope.iEndLine || scope.iEndLine == -1 || scope.iStartLine == -1 ||
scope.iEndLine >= currentSnapshot.LineCount || scope.iStartLine >= currentSnapshot.LineCount)
{
continue;
}
SnapshotSpan?snap = null;
string collpasedlabel = "...";
bool collapsed = type == SQDeclarationType.AttributeScope;
try
{
collpasedlabel = t.Item3;
var startLine = currentSnapshot.GetLineFromLineNumber(scope.iStartLine);
var endLine = currentSnapshot.GetLineFromLineNumber(scope.iEndLine);
var start = startLine.Start + scope.iStartIndex;
int length = (endLine.Start - startLine.Start) + scope.iEndIndex - scope.iStartIndex;
if (start.Position + length >= currentSnapshot.Length)
{
length = currentSnapshot.Length - start.Position;
}
if (length > 0)
{
snap = new SnapshotSpan(start, length);
}
}
catch (Exception)
{
//this is a safe assumption as the currentsnapshot may have changed at this time
}
if (snap != null)
{
yield return(new TagSpan <IOutliningRegionTag>(snap.Value, new OutliningRegionTag(collapsed, collapsed, collpasedlabel, snap.Value.GetText())));
}
}
}
}
