private ColorizedIdentifier GenerateIdentifier(string text)
{
var identifier = new ColorizedIdentifier(text);
Prefix prefix = GetPrefix(identifier.Text);
identifier.Prefix = prefix;
identifier.Color = GenerateColor(identifier);
var classificationName = ClassificationPrefix + identifier.Text;
IClassificationType classification;
if (_typeRegistry.GetClassificationType(classificationName) != null)
{
classification = _typeRegistry.GetClassificationType(classificationName);
}
else
{
classification = _typeRegistry.CreateClassificationType(classificationName, new[] { _baseClassification });
identifier.IsDirty = true;
}
identifier.Classification = classification;
return(identifier);
}
private ColorHCL GenerateColor(ColorizedIdentifier identifier)
{
var text = identifier.Text;
text = Regex.Replace(text, identifier.Prefix.ToString(), "");
double chroma = 25;
double luminance = 50;
int[] hueLimit = { 0, 360 };
var prefixIndex = Array.IndexOf(DefaultPrefixes, identifier.Prefix);
switch (prefixIndex)
{
case 4: //interface
hueLimit[0] = 100;
hueLimit[1] = 150;
break;
case 5: //public
if (String.IsNullOrEmpty(Regex.Replace(text, "[^a-z]", ""))) //ALL Caps
{
chroma = 14.5;
luminance = 66;
}
else
{
chroma = 20;
luminance = 66.5;
}
break;
case 6: //@
hueLimit[0] = 320;
hueLimit[1] = 340;
break;
default: //private
chroma = 35.7;
luminance = 66.5;
break;
}
var firstLetter = text[0];
text = text.Remove(0, 1);
const int lowercaseCharacters = 4;
const int uppercaseCharacters = 3;
var uppercase = Regex.Replace(text, "[^A-Z]", "");
var lowercase = Regex.Replace(text, "[^a-z]", "");
double huePercentage = 0;
double hueStep = 16.67; //6 steps
if (!Char.IsLower(firstLetter))
{
huePercentage += hueStep;
}
huePercentage += hueStep * 3 * LetterToPercentage(firstLetter);
double lowercasePercentage = 0;
for (int i = 0; i < Math.Min(lowercaseCharacters, lowercase.Length); ++i)
{
lowercasePercentage += LetterToPercentage(lowercase[i]);
}
lowercasePercentage = lowercasePercentage / lowercaseCharacters;
huePercentage += hueStep * lowercasePercentage;
double uppercasePercentage = 0;
for (int i = 0; i < Math.Min(uppercaseCharacters, uppercase.Length); ++i)
{
uppercasePercentage += LetterToPercentage(uppercase[i]);
}
uppercasePercentage = uppercasePercentage / uppercaseCharacters;
huePercentage += hueStep * uppercasePercentage;
if (Regex.IsMatch(text, "[0-9]$"))
{
var number = int.Parse(text[text.Length - 1].ToString());
++number;
huePercentage += hueStep * number / 10.0;
}
huePercentage += hueStep * 2 * text.Length / 15.0;
if (huePercentage > 100)
{
huePercentage = 100;
}
huePercentage /= 100.0;
return(new ColorHCL(hueLimit[0] + huePercentage * (hueLimit[1] - hueLimit[0]), chroma * 3.0f, luminance));
}