void InitializeBrushes(out Brush brush, out Brush overwriteBrush, VSTC.IClassificationType classificationType)
{
var props = classificationFormatMap.GetTextProperties(classificationType);
if (!props.BackgroundBrushEmpty)
{
brush = props.BackgroundBrush;
}
else
{
Debug.Assert(!classificationFormatMap.DefaultTextProperties.ForegroundBrushEmpty);
brush = classificationFormatMap.DefaultTextProperties.ForegroundBrush;
if (classificationFormatMap.DefaultTextProperties.ForegroundBrushEmpty)
{
brush = Brushes.Black;
}
}
if (brush.CanFreeze)
{
brush.Freeze();
}
overwriteBrush = brush.Clone();
overwriteBrush.Opacity = 0.5;
if (overwriteBrush.CanFreeze)
{
overwriteBrush.Freeze();
}
}
void Add(List <HexLinePart> list, int column, HexClassificationSpan cspan, VST.Span lineExtent)
{
if (cspan.Span.Length == 0)
{
return;
}
int startOffs = lineExtent.Start;
var props = classificationFormatMap.GetTextProperties(cspan.ClassificationType);
if (list.Count > 0)
{
var last = list[list.Count - 1];
if (last.AdornmentElement == null && last.TextRunProperties == props && last.Span.End == cspan.Span.Start)
{
list[list.Count - 1] = new HexLinePart(list.Count - 1, last.Column, VST.Span.FromBounds(last.Span.Start - startOffs, cspan.Span.End - startOffs), last.TextRunProperties);
return;
}
}
list.Add(new HexLinePart(list.Count, column, new VST.Span(cspan.Span.Start - startOffs, cspan.Span.Length), props));
}
public void Add(HexBufferLineFormatter bufferLines, HexClassifier classifier, NormalizedHexBufferSpanCollection spans, CancellationToken cancellationToken)
{
if (bufferLines == null)
{
throw new ArgumentNullException(nameof(bufferLines));
}
if (classifier == null)
{
throw new ArgumentNullException(nameof(classifier));
}
if (spans == null)
{
throw new ArgumentNullException(nameof(spans));
}
if (spans.Count != 0 && spans[0].Buffer != bufferLines.Buffer)
{
throw new ArgumentException();
}
var classificationSpans = new List <HexClassificationSpan>();
foreach (var span in spans)
{
if (spansCount > 0)
{
htmlWriter.WriteRaw(delimiter);
}
spansCount++;
var pos = span.Start;
for (;;)
{
classificationSpans.Clear();
var line = bufferLines.GetLineFromPosition(pos);
var text = line.GetText(span);
var context = new HexClassificationContext(line, line.TextSpan);
classifier.GetClassificationSpans(classificationSpans, context, cancellationToken);
int textPos = 0;
foreach (var tagSpan in classificationSpans)
{
if (textPos < tagSpan.Span.Start)
{
WriteCss(classificationFormatMap.DefaultTextProperties);
htmlWriter.WriteSpan(cssWriter.ToString(), text, textPos, tagSpan.Span.Start - textPos);
}
WriteCss(classificationFormatMap.GetTextProperties(tagSpan.ClassificationType));
htmlWriter.WriteSpan(cssWriter.ToString(), text, tagSpan.Span.Start, tagSpan.Span.Length);
textPos = tagSpan.Span.End;
}
if (textPos < text.Length)
{
WriteCss(classificationFormatMap.DefaultTextProperties);
htmlWriter.WriteSpan(cssWriter.ToString(), text, textPos, text.Length - textPos);
}
htmlWriter.WriteRaw("<br/>");
pos = line.BufferEnd;
if (pos >= span.End)
{
break;
}
}
}
}
