static public Color?parseColor(string input)
{
ColorConverter c = new ColorConverter();
if (Regex.IsMatch(input, "^(#[0-9A-Fa-f]{3})$|^(#[0-9A-Fa-f]{6})$"))
{
return((Color)c.ConvertFromString(input));
}
ColorConverter.StandardValuesCollection svc = (ColorConverter.StandardValuesCollection)c.GetStandardValues();
foreach (Color o in svc)
{
if (o.Name.Equals(input, StringComparison.OrdinalIgnoreCase))
{
return((Color)c.ConvertFromString(input));
}
}
return(null);
}
public static Color ParseColor(String colorString)
{
ColorConverter colorConverter = new ColorConverter();
// case 1: "Color [A=255, R=0, G=255, B=64]"
// case 2: "Color [Red]"
if (colorString.Contains("Color"))
{
bool case1 = false;
for (int i = 0; i < colorString.Length; i++)
{
if (char.IsDigit(colorString[i]))
{
case1 = true;
break;
}
}
// if case 1, e.g., "Color [A=255, R=0, G=255, B=64]"
if (case1)
{
int pos = colorString.IndexOf("[");
String inner2 = colorString.Substring(pos + 1);
String[] rgbs = inner2.Split(new Char[] { ' ' });
int pos2 = rgbs[1].IndexOf("=");
int pos3 = rgbs[1].IndexOf(",");
String red = rgbs[1].Substring(pos2 + 1, pos3 - pos2 - 1);
int iRed = Int32.Parse(red);
pos2 = rgbs[2].IndexOf("=");
pos3 = rgbs[2].IndexOf(",");
String green = rgbs[2].Substring(pos2 + 1, pos3 - pos2 - 1);
int iGreen = Int32.Parse(green);
pos2 = rgbs[3].IndexOf("=");
pos3 = rgbs[3].IndexOf("]");
String blue = rgbs[3].Substring(pos2 + 1, pos3 - pos2 - 1);
int iBlue = Int32.Parse(blue);
Color col = Color.FromArgb(iRed, iGreen, iBlue);
return(col);
}
// else case2, e.g., "Color [Red]"
else
{
int pos2 = colorString.IndexOf("[");
int pos3 = colorString.IndexOf("]");
String colorString2 = colorString.Substring(pos2 + 1, pos3 - pos2 - 1);
Color col;
try
{
col = (Color)colorConverter.ConvertFromString(colorString2);
}
catch (Exception ex)
{
throw new Exception(String.Format("Error: {0} is not recognized as a color ({1})", colorString, ex.Message));
}
return(col);
}
}
else
{
ColorConverter.StandardValuesCollection svc = (ColorConverter.StandardValuesCollection)colorConverter.GetStandardValues();
foreach (Color color in svc)
{
if (color.Name.Equals(colorString, StringComparison.OrdinalIgnoreCase))
{
Color col = (Color)colorConverter.ConvertFromString(colorString);
return(col);
}
}
throw new Exception(String.Format("Error: {0} is not recognized as a color", colorString));
}
}
