private Style FindCustomStyle(XElement block)
{
var child = block.Descendants(Namespace + "T").FirstOrDefault();
if (child != null)
{
var analyzer = new StyleAnalyzer(Root);
var style = new Style(analyzer.CollectFrom(child, true));
// normalize style background to page background
if (style.Highlight != pageColor && pageColor == "automatic")
{
if (style.Highlight == "#FFFFFF")
{
style.Highlight = "automatic";
}
}
// compare and find
var find = customStyles.Find(s => s.Equals(style));
return(find);
}
return(null);
}
private bool ClearTextBackground(IEnumerable <XElement> runs, bool deep = false)
{
var updated = false;
foreach (var run in runs)
{
var style = new Style(analyzer.CollectFrom(run, true));
if (!string.IsNullOrEmpty(style.Highlight))
{
style.Highlight = Style.Automatic;
}
var darkText = !style.Color.Equals(Style.Automatic) &&
ColorTranslator.FromHtml(style.Color).GetBrightness() < 0.5;
// if dark-on-dark or light-on-light
if (darkText == darkPage)
{
style.Color = darkText ? White : Black;
}
var stylizer = new Stylizer(style);
stylizer.ApplyStyle(run);
ClearHyperlinkBackground(run);
updated = true;
// deep prevents runs from being processed multiple times
// NOTE sometimes OneNote will incorrectly set the collapsed attribute,
// thinking it is set to 1 but is not visually collapsed!
if (!deep && run.Parent.Attribute("collapsed")?.Value == "1")
{
updated |= ClearTextBackground(
run.Parent.Descendants(ns + "T").Where(e => e != run),
true);
}
}
return(updated);
}
