private static XDocument GenerateSPColor(string newHexColor)
{
XDocument doc = XDocument.Parse(_baseXml);
var allSlots = doc.Descendants().Where(d => d.Name.LocalName == "color").ToList();
var baseColorNode = allSlots.FirstOrDefault(n => n.FirstAttribute.Value == "AccentText");
string hexColor = baseColorNode.Attributes().Where(a => a.Name == "value").Select(a => a.Value).Single();
Color baseColor = ColorTranslator.FromHtml("#" + hexColor);
Color newColor = ColorTranslator.FromHtml(newHexColor);
List <string> consistentSlots = new List <string> {
"ErrorText", "SearchURL", "TileText", "TileBackgroundOverlay"
};
HSLColor hslBaseColor = HSLColor.FromRgbColor(baseColor);
HSLColor hslNewColor = HSLColor.FromRgbColor(newColor);
foreach (XElement slotColor in allSlots)
{
var slotHexColor = slotColor.Attributes().Where(a => a.Name == "value").Select(a => a.Value).Single();
Color currentColor = ColorTranslator.FromHtml("#" + slotHexColor);
HSLColor hslCurrentColor = HSLColor.FromRgbColor(currentColor);
string slotName = slotColor.Attributes().Where(a => a.Name == "name").Select(a => a.Value).Single();
if (!consistentSlots.Contains(slotName) && hslCurrentColor.Hue != 0.0 && hslCurrentColor.Saturation != 0.0)
{
if (ColorsEqualIgnoringOpacity(baseColor, currentColor))
{
slotColor.Attributes().Single(a => a.Name == "value").Value = ColorTranslator.ToHtml(newColor).Trim('#');
}
else
{
double hueDifference = (double)hslCurrentColor.Hue - (double)hslBaseColor.Hue;
float hue = hslNewColor.Hue + (float)hueDifference;
float luminance = hslNewColor.Luminance;
float saturation = hslNewColor.Luminance + (hslCurrentColor.Luminance - hslBaseColor.Luminance);
HSLColor hslCalcColor = new HSLColor(hue, saturation, luminance);
Color calcColor = Color.FromArgb((int)currentColor.A, hslCalcColor.ToRgbColor());
slotColor.Attributes().Single(a => a.Name == "value").Value = ColorTranslator.ToHtml(calcColor).Trim('#');
}
}
}
return(doc);
}