public AdornmentInfo GetAdornmentInfo(IntraTextAdornmentTaggerDisplayMode mode)
{
switch (mode)
{
case IntraTextAdornmentTaggerDisplayMode.HideOriginalText_WithoutLastLineBreak:
{
var affinity = Span.Length > 0 ? null : Affinity;
return(new AdornmentInfo(Span, affinity));
}
case IntraTextAdornmentTaggerDisplayMode.DoNotHideOriginalText_BeforeLastLineBreak:
{
SnapshotPoint start;
if (!Affinity.HasValue || Affinity.Value == PositionAffinity.Predecessor)
{
start = Span.Start;
}
else
{
start = Span.End;
}
var adornmentSpan = new SnapshotSpan(start, 0);
return(new AdornmentInfo(adornmentSpan, Affinity));
}
default:
throw new InvalidOperationException($"Unknown {nameof(IntraTextAdornmentTaggerDisplayMode)}: '{mode}'.");
}
}
/// <param name="adornmentAffinity">Determines whether adornments based on data tags with zero-length spans
/// will stick with preceding or succeeding text characters.</param>
protected IntraTextAdornmentTagTransformer(
IWpfTextView textView, ITagAggregator <TDataTag> dataTagger,
IntraTextAdornmentTaggerDisplayMode mode,
PositionAffinity adornmentAffinity = PositionAffinity.Successor)
: base(textView)
{
this.AdornmentAffinity = adornmentAffinity;
this.DataTagger = dataTagger;
this.DataTagger.TagsChanged += HandleDataTagsChanged;
Mode = mode;
}
