#if _NETSTANDARD_
using ClosedXML.Excel;
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Text.RegularExpressions;
namespace ClosedXML.NetStandard
{
public class XLColorTranslator
{
private static IDictionary<string, Color> NAMED_COLOR_MAP = new Dictionary<string, Color>{
//X11 Color Names (W3C color names)
//Red color names
{"indianred", Color.FromArgb(205, 92, 92)},
{"lightcoral",Color.FromArgb(240, 128, 128)},
{"salmon",Color.FromArgb(250, 128, 114)},
{"darksalmon",Color.FromArgb(233, 150, 122)},
{"crimson",Color.FromArgb(220, 20, 60)},
{"red",Color.FromArgb(255, 0, 0)},
{"firebrick",Color.FromArgb(178, 34, 34)},
{"darkred",Color.FromArgb(139, 0, 0)},
//Pink color names
{"pink",Color.FromArgb(255, 192, 203)},
{"lightpink",Color.FromArgb(255, 182, 193)},
{"hotpink",Color.FromArgb(255, 105, 180)},
{"deeppink",Color.FromArgb(255, 20, 147)},
{"mediumvioletred",Color.FromArgb(199, 21, 133)},
{"palevioletred",Color.FromArgb(219, 112, 147)},
//Orange color names
{"lightsalmon",Color.FromArgb(255, 160, 122)},
{"coral",Color.FromArgb(255, 127, 80)},
{"tomato",Color.FromArgb(255, 99, 71)},
{"orangered",Color.FromArgb(255, 69, 0)},
{"darkorange",Color.FromArgb(255, 140, 0)},
{"orange",Color.FromArgb(255, 165, 0)},
//Yellow color names
{"gold",Color.FromArgb(255, 215, 0)},
{"yellow",Color.FromArgb(255, 255, 0)},
{"lightyellow",Color.FromArgb(255, 255, 224)},
{"lemonchiffon",Color.FromArgb(255, 250, 205)},
{"lightgoldenrodyellow",Color.FromArgb(250, 250, 210)},
{"papayawhip",Color.FromArgb(255, 239, 213)},
{"moccasin",Color.FromArgb(255, 228, 181)},
{"peachpuff",Color.FromArgb(255, 218, 185)},
{"palegoldenrod",Color.FromArgb(238, 232, 170)},
{"khaki",Color.FromArgb(240, 230, 140)},
{"darkkhaki",Color.FromArgb(189, 183, 107)},
//Purple color names
{"lavender",Color.FromArgb(230, 230, 250)},
{"thistle",Color.FromArgb(216, 191, 216)},
{"plum",Color.FromArgb(221, 160, 221)},
{"violet",Color.FromArgb(238, 130, 238)},
{"orchid",Color.FromArgb(218, 112, 214)},
{"fuchsia",Color.FromArgb(255, 0, 255)},
{"magenta",Color.FromArgb(255, 0, 255)},
{"mediumorchid",Color.FromArgb(186, 85, 211)},
{"mediumpurple",Color.FromArgb(147, 112, 219)},
{"blueviolet",Color.FromArgb(138, 43, 226)},
{"darkviolet",Color.FromArgb(148, 0, 211)},
{"darkorchid",Color.FromArgb(153, 50, 204)},
{"darkmagenta",Color.FromArgb(139, 0, 139)},
{"purple",Color.FromArgb(128, 0, 128)},
{"indigo",Color.FromArgb(75, 0, 130)},
{"slateblue",Color.FromArgb(106, 90, 205)},
{"darkslateblue",Color.FromArgb(72, 61, 139)},
//Green color names
{"greenyellow",Color.FromArgb(173, 255, 47)},
{"chartreuse",Color.FromArgb(127, 255, 0)},
{"lawngreen",Color.FromArgb(124, 252, 0)},
{"lime",Color.FromArgb(0, 255, 0)},
{"limegreen",Color.FromArgb(50, 205, 50)},
{"palegreen",Color.FromArgb(152, 251, 152)},
{"lightgreen",Color.FromArgb(144, 238, 144)},
{"mediumspringgreen",Color.FromArgb(0, 250, 154)},
{"springgreen",Color.FromArgb(0, 255, 127)},
{"mediumseagreen",Color.FromArgb(60, 179, 113)},
{"seagreen",Color.FromArgb(46, 139, 87)},
{"forestgreen",Color.FromArgb(34, 139, 34)},
{"green",Color.FromArgb(0, 128, 0)},
{"darkgreen",Color.FromArgb(0, 100, 0)},
{"yellowgreen",Color.FromArgb(154, 205, 50)},
{"olivedrab",Color.FromArgb(107, 142, 35)},
{"olive",Color.FromArgb(128, 128, 0)},
{"darkolivegreen",Color.FromArgb(85, 107, 47)},
{"mediumaquamarine",Color.FromArgb(102, 205, 170)},
{"darkseagreen",Color.FromArgb(143, 188, 143)},
{"lightseagreen",Color.FromArgb(32, 178, 170)},
{"darkcyan",Color.FromArgb(0, 139, 139)},
{"teal",Color.FromArgb(0, 128, 128)},
//Blue color names
{"aqua",Color.FromArgb(0, 255, 255)},
{"cyan",Color.FromArgb(0, 255, 255)},
{"lightcyan",Color.FromArgb(224, 255, 255)},
{"paleturquoise",Color.FromArgb(175, 238, 238)},
{"aquamarine",Color.FromArgb(127, 255, 212)},
{"turquoise",Color.FromArgb(64, 224, 208)},
{"mediumturquoise",Color.FromArgb(72, 209, 204)},
{"darkturquoise",Color.FromArgb(0, 206, 209)},
{"cadetblue",Color.FromArgb(95, 158, 160)},
{"steelblue",Color.FromArgb(70, 130, 180)},
{"lightsteelblue",Color.FromArgb(176, 196, 222)},
{"powderblue",Color.FromArgb(176, 224, 230)},
{"lightblue",Color.FromArgb(173, 216, 230)},
{"skyblue",Color.FromArgb(135, 206, 235)},
{"lightskyblue",Color.FromArgb(135, 206, 250)},
{"deepskyblue",Color.FromArgb(0, 191, 255)},
{"dodgerblue",Color.FromArgb(30, 144, 255)},
{"cornflowerblue",Color.FromArgb(100, 149, 237)},
{"mediumslateblue",Color.FromArgb(123, 104, 238)},
{"royalblue",Color.FromArgb(65, 105, 225)},
{"blue",Color.FromArgb(0, 0, 255)},
{"mediumblue",Color.FromArgb(0, 0, 205)},
{"darkblue",Color.FromArgb(0, 0, 139)},
{"navy",Color.FromArgb(0, 0, 128)},
{"midnightblue",Color.FromArgb(25, 25, 112)},
//Brown color names
{"cornsilk",Color.FromArgb(255, 248, 220)},
{"blanchedalmond",Color.FromArgb(255, 235, 205)},
{"bisque",Color.FromArgb(255, 228, 196)},
{"navajowhite",Color.FromArgb(255, 222, 173)},
{"wheat",Color.FromArgb(245, 222, 179)},
{"burlywood",Color.FromArgb(222, 184, 135)},
{"tan",Color.FromArgb(210, 180, 140)},
{"rosybrown",Color.FromArgb(188, 143, 143)},
{"sandybrown",Color.FromArgb(244, 164, 96)},
{"goldenrod",Color.FromArgb(218, 165, 32)},
{"darkgoldenrod",Color.FromArgb(184, 134, 11)},
{"peru",Color.FromArgb(205, 133, 63)},
{"chocolate",Color.FromArgb(210, 105, 30)},
{"saddlebrown",Color.FromArgb(139, 69, 19)},
{"sienna",Color.FromArgb(160, 82, 45)},
{"brown",Color.FromArgb(165, 42, 42)},
{"maroon",Color.FromArgb(128, 0, 0)},
//White color names
{"white",Color.FromArgb(255, 255, 255)},
{"snow",Color.FromArgb(255, 250, 250)},
{"honeydew",Color.FromArgb(240, 255, 240)},
{"mintcream",Color.FromArgb(245, 255, 250)},
{"azure",Color.FromArgb(240, 255, 255)},
{"aliceblue",Color.FromArgb(240, 248, 255)},
{"ghostwhite",Color.FromArgb(248, 248, 255)},
{"whitesmoke",Color.FromArgb(245, 245, 245)},
{"seashell",Color.FromArgb(255, 245, 238)},
{"beige",Color.FromArgb(245, 245, 220)},
{"oldlace",Color.FromArgb(253, 245, 230)},
{"floralwhite",Color.FromArgb(255, 250, 240)},
{"ivory",Color.FromArgb(255, 255, 240)},
{"antiquewhite",Color.FromArgb(250, 235, 215)},
{"linen",Color.FromArgb(250, 240, 230)},
{"lavenderblush",Color.FromArgb(255, 240, 245)},
{"mistyrose",Color.FromArgb(255, 228, 225)},
//Grey color names
{"gainsboro",Color.FromArgb(220, 220, 220)},
{"lightgrey",Color.FromArgb(211, 211, 211)},
{"silver",Color.FromArgb(192, 192, 192)},
{"darkgray",Color.FromArgb(169, 169, 169)},
{"gray",Color.FromArgb(128, 128, 128)},
{"dimgray",Color.FromArgb(105, 105, 105)},
{"lightslategray",Color.FromArgb(119, 136, 153)},
{"slategray",Color.FromArgb(112, 128, 144)},
{"darkslategray",Color.FromArgb(47, 79, 79)},
{"black",Color.FromArgb(0, 0, 0)},
};
private static Regex HexParser = new Regex("^#([0-9a-f]{2})?([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2})$");
private static Regex ShortHexParser = new Regex("^#([0-9a-f]{1})?([0-9a-f]{1})([0-9a-f]{1})([0-9a-f]{1})$");
public static Color FromKnownColor(KnownColor knownColor)
{
var s = knownColor.ToString().ToLowerInvariant();
return XLColorTranslator.FromHtml(s);
}
public static Color FromHtml(string htmlColor)
{
string id = htmlColor.Trim().ToLowerInvariant();
if (NAMED_COLOR_MAP.ContainsKey(id))
{
return NAMED_COLOR_MAP[id];
}
else
{
var m = HexParser.Match(id);
if (m.Value == String.Empty)
{
m = ShortHexParser.Match(id);
if (m.Value == String.Empty)
{
throw new ArgumentException("Invalid HTML color: " + htmlColor);
}
}
if (XLHelper.IsNullOrWhiteSpace(m.Groups[1].Value))
return Color.FromArgb(
Convert.ToInt32(m.Groups[2].Value.PadRight(2, m.Groups[2].Value[0]), 16),
Convert.ToInt32(m.Groups[3].Value.PadRight(2, m.Groups[3].Value[0]), 16),
Convert.ToInt32(m.Groups[4].Value.PadRight(2, m.Groups[4].Value[0]), 16));
else
return Color.FromArgb(
Convert.ToInt32(m.Groups[1].Value.PadRight(2, m.Groups[1].Value[0]), 16),
Convert.ToInt32(m.Groups[2].Value.PadRight(2, m.Groups[2].Value[0]), 16),
Convert.ToInt32(m.Groups[3].Value.PadRight(2, m.Groups[3].Value[0]), 16),
Convert.ToInt32(m.Groups[4].Value.PadRight(2, m.Groups[4].Value[0]), 16));
}
}
}
}
#endif
