void Add(List<HexLinePart> parts, StringBuilder sb, string s, TextRunProperties textRunProperties, Brush brush) {
var trp = new HexTextRunProperties(textRunProperties);
if (brush != null)
trp._ForegroundBrush = brush;
// Merge if possible
bool merged = false;
if (parts.Count > 0) {
var last = parts[parts.Count - 1];
if (HexTextRunProperties.Equals(last.TextRunProperties, trp)) {
last.Length += s.Length;
merged = true;
}
}
if (!merged)
parts.Add(new HexLinePart(sb.Length, s.Length, trp));
sb.Append(s);
}
HexTextRunProperties CreateHexTextRunProperties() {
var textRunProps = new HexTextRunProperties();
textRunProps._Typeface = new Typeface((FontFamily)GetValue(FontFamilyProperty),
(FontStyle)GetValue(FontStyleProperty),
(FontWeight)GetValue(FontWeightProperty),
(FontStretch)GetValue(FontStretchProperty));
textRunProps._FontRenderingEmSize = (double)GetValue(FontSizeProperty);
textRunProps._FontHintingEmSize = (double)GetValue(FontSizeProperty);
textRunProps._ForegroundBrush = (Brush)GetValue(ForegroundProperty);
textRunProps._CultureInfo = CultureInfo.CurrentUICulture;
return textRunProps;
}