private List <LineSpan> GetHighlightedSpans(long startOffset, long endOffset)
{
foreach (Highlighter highlighter in _highlighters)
{
if (highlighter.Intersects(startOffset, endOffset))
{
var entireLine = new LineSpan(startOffset, endOffset, SystemColors.WindowText, SystemColors.Window, true);
return(BreakIntoHighlightedSpans(entireLine));
}
}
return(null);
}
private List <LineSpan> BreakIntoHighlightedSpans(LineSpan lineSpan)
{
List <LineSpan> result = BreakIntoSpans(_highlighters[0], lineSpan);
for (int i = 1; i < _highlighters.Count; i++)
{
var curHighlighter = _highlighters[i];
var nextResult = new List <LineSpan>();
result.ForEach(span => nextResult.AddRange(BreakIntoSpans(curHighlighter, span)));
result = nextResult;
}
return(result);
}
private static List <LineSpan> BreakIntoSpans(Highlighter highlighter, LineSpan span)
{
var result = new List <LineSpan>();
if (highlighter.Intersects(span.Start, span.End))
{
if (highlighter.StartOffset > span.Start)
{
result.Add(new LineSpan(span.Start, highlighter.StartOffset, span.TextColor, span.BackgroundColor, true));
}
result.Add(new LineSpan(Math.Max(span.Start, highlighter.StartOffset), Math.Min(span.End, highlighter.EndOffset),
highlighter.TextColor.HasValue ? highlighter.TextColor.Value : span.TextColor,
highlighter.BackgroundColor.HasValue ? highlighter.BackgroundColor.Value : span.BackgroundColor, false));
if (highlighter.EndOffset < span.End)
{
result.Add(new LineSpan(highlighter.EndOffset, span.End, span.TextColor, span.BackgroundColor, true));
}
}
else
{
result.Add(span);
}
return(result);
}
private List<LineSpan> GetHighlightedSpans(long startOffset, long endOffset)
{
foreach (Highlighter highlighter in _highlighters)
{
if (highlighter.Intersects(startOffset, endOffset))
{
var entireLine = new LineSpan(startOffset, endOffset, SystemColors.WindowText, SystemColors.Window, true);
return BreakIntoHighlightedSpans(entireLine);
}
}
return null;
}
private List<LineSpan> BreakIntoHighlightedSpans(LineSpan lineSpan)
{
List<LineSpan> result = BreakIntoSpans(_highlighters[0], lineSpan);
for (int i = 1; i < _highlighters.Count; i++)
{
var curHighlighter = _highlighters[i];
var nextResult = new List<LineSpan>();
result.ForEach(span => nextResult.AddRange(BreakIntoSpans(curHighlighter, span)));
result = nextResult;
}
return result;
}
private static List<LineSpan> BreakIntoSpans(Highlighter highlighter, LineSpan span)
{
var result = new List<LineSpan>();
if (highlighter.Intersects(span.Start, span.End))
{
if (highlighter.StartOffset > span.Start)
{
result.Add(new LineSpan(span.Start, highlighter.StartOffset, span.TextColor, span.BackgroundColor, true));
}
result.Add(new LineSpan(Math.Max(span.Start, highlighter.StartOffset), Math.Min(span.End, highlighter.EndOffset),
highlighter.TextColor.HasValue ? highlighter.TextColor.Value : span.TextColor,
highlighter.BackgroundColor.HasValue ? highlighter.BackgroundColor.Value : span.BackgroundColor, false));
if (highlighter.EndOffset < span.End)
{
result.Add(new LineSpan(highlighter.EndOffset, span.End, span.TextColor, span.BackgroundColor, true));
}
}
else
result.Add(span);
return result;
}