public static ColorType FromColor(Color color)
{
if (color.IsEmpty)
return null;
ColorType colorType = new ColorType();
colorType.r = ColorByteToFloat(color.R);
colorType.g = ColorByteToFloat(color.G);
colorType.b = ColorByteToFloat(color.B);
colorType.a = ColorByteToFloat(color.A);
return colorType;
}
public static ColorType FromString(string colorString)
{
if (String.IsNullOrEmpty(colorString))
return null;
colorString = colorString.Replace(" ", "");
if (String.IsNullOrEmpty(colorString))
return null;
ColorType colorType = new ColorType();
Regex regEx = new Regex(@"^(\d+(\.\d+)?);(\d+(\.\d+)?);(\d+(\.\d+)?)(;(\d+(\.\d+)?))?$");
Match match = regEx.Match(colorString);
if (!match.Success)
{
regEx = new Regex(@"^(\w+)(;(\d+(.\d+)?))?$");
match = regEx.Match(colorString);
if (!match.Success)
throw new ArgumentException("Use one of the following formats: 'r;g;b;a' or 'ColorName;a'.");
string colorName = match.Groups[1].Value;
KnownColor knownColor;
try
{
knownColor = (KnownColor)Enum.Parse(typeof(KnownColor), colorName, true);
}
catch (ArgumentException ex)
{
throw new ArgumentException("Color name is not known: " + ex.Message, ex);
}
Color color = Color.FromKnownColor(knownColor);
colorType = FromColor(color);
if (match.Groups[3].Success)
colorType.a = float.Parse(match.Groups[3].Value, CultureInfo.InvariantCulture);
return colorType;
}
colorType.r = float.Parse(match.Groups[1].Value, CultureInfo.InvariantCulture);
colorType.g = float.Parse(match.Groups[3].Value, CultureInfo.InvariantCulture);
colorType.b = float.Parse(match.Groups[5].Value, CultureInfo.InvariantCulture);
if (match.Groups[8].Success)
colorType.a = float.Parse(match.Groups[8].Value, CultureInfo.InvariantCulture);
else
colorType.a = 1;
return colorType;
}
public static ColorType FromString(string colorString)
{
if (String.IsNullOrEmpty(colorString))
{
return(null);
}
colorString = colorString.Replace(" ", "");
if (String.IsNullOrEmpty(colorString))
{
return(null);
}
ColorType colorType = new ColorType();
Regex regEx = new Regex(@"^(\d+(\.\d+)?);(\d+(\.\d+)?);(\d+(\.\d+)?)(;(\d+(\.\d+)?))?$");
Match match = regEx.Match(colorString);
if (!match.Success)
{
regEx = new Regex(@"^(\w+)(;(\d+(.\d+)?))?$");
match = regEx.Match(colorString);
if (!match.Success)
{
throw new ArgumentException("Use one of the following formats: 'r;g;b;a' or 'ColorName;a'.");
}
string colorName = match.Groups[1].Value;
KnownColor knownColor;
try
{
knownColor = (KnownColor)Enum.Parse(typeof(KnownColor), colorName, true);
}
catch (ArgumentException ex)
{
throw new ArgumentException("Color name is not known: " + ex.Message, ex);
}
Color color = Color.FromKnownColor(knownColor);
colorType = FromColor(color);
if (match.Groups[3].Success)
{
colorType.a = float.Parse(match.Groups[3].Value, CultureInfo.InvariantCulture);
}
return(colorType);
}
colorType.r = float.Parse(match.Groups[1].Value, CultureInfo.InvariantCulture);
colorType.g = float.Parse(match.Groups[3].Value, CultureInfo.InvariantCulture);
colorType.b = float.Parse(match.Groups[5].Value, CultureInfo.InvariantCulture);
if (match.Groups[8].Success)
{
colorType.a = float.Parse(match.Groups[8].Value, CultureInfo.InvariantCulture);
}
else
{
colorType.a = 1;
}
return(colorType);
}
public static Color ToColor(ColorType colorType)
{
if (colorType == null)
return Color.Empty;
return colorType.ToColor();
}
public static Color AsColor(this ColorType[] colorTypes)
{
return(colorTypes != null && colorTypes.Length > 0 ?
ColorType.ToColor(colorTypes[0]) :
Color.Empty);
}
