public void Add(string text, FontAndColorSetting format)
{
SimpleTextRunProperties props;
if (!propMap.TryGetValue(format.GetHashCode(), out props))
{
props = new SimpleTextRunProperties(format);
propMap.Add(format.GetHashCode(), props);
}
var span = new FormattedSpan(textBuilder.Length, text.Length, props);
textBuilder.Append(text);
spans.Add(span);
cache.Change(span.Start, span.Length, 0);
}
public FormattedSpan(int start, int length, SimpleTextRunProperties format)
{
this.Start = start;
this.Length = length;
this.Format = format;
}
