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/*********************************************************************
Functions for working with colors.
This is part of GNU Astronomy Utilities (Gnuastro) package.
Original author:
Mohammad Akhlaghi <mohammad@akhlaghi.org>
Contributing author(s):
Copyright (C) 2022-2024 Free Software Foundation, Inc.
Gnuastro is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation, either version 3 of the License, or (at your
option) any later version.
Gnuastro is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with Gnuastro. If not, see <http://www.gnu.org/licenses/>.
**********************************************************************/
#include <config.h>
#include <stdio.h>
#include <errno.h>
#include <error.h>
#include <stdlib.h>
#include <string.h>
#include <gnuastro/color.h>
#include <gnuastro/blank.h>
/***********************************************************************/
/************** Names and values *****************/
/***********************************************************************/
/* Return the macros for the extended HTML/CSS colors based on their names:
'https://en.wikipedia.org/wiki/Web_colors#HTML_color_names'.*/
uint8_t
gal_color_name_to_id(char *n)
{
if( !strcasecmp("aliceblue", n)) return GAL_COLOR_ALICEBLUE;
else if( !strcasecmp("antiquewhite", n)) return GAL_COLOR_ANTIQUEWHITE;
else if( !strcasecmp("aqua", n)) return GAL_COLOR_AQUA;
else if( !strcasecmp("aquamarine", n)) return GAL_COLOR_AQUAMARINE;
else if( !strcasecmp("azure", n)) return GAL_COLOR_AZURE;
else if( !strcasecmp("beige", n)) return GAL_COLOR_BEIGE;
else if( !strcasecmp("bisque", n)) return GAL_COLOR_BISQUE;
else if( !strcasecmp("black", n)) return GAL_COLOR_BLACK;
else if( !strcasecmp("blanchedalmond", n)) return GAL_COLOR_BLANCHEDALMOND;
else if( !strcasecmp("blue", n)) return GAL_COLOR_BLUE;
else if( !strcasecmp("blueviolet", n)) return GAL_COLOR_BLUEVIOLET;
else if( !strcasecmp("brown", n)) return GAL_COLOR_BROWN;
else if( !strcasecmp("burlywood", n)) return GAL_COLOR_BURLYWOOD;
else if( !strcasecmp("cadetblue", n)) return GAL_COLOR_CADETBLUE;
else if( !strcasecmp("chartreuse", n)) return GAL_COLOR_CHARTREUSE;
else if( !strcasecmp("chocolate", n)) return GAL_COLOR_CHOCOLATE;
else if( !strcasecmp("coral", n)) return GAL_COLOR_CORAL;
else if( !strcasecmp("cornflowerblue", n)) return GAL_COLOR_CORNFLOWERBLUE;
else if( !strcasecmp("cornsilk", n)) return GAL_COLOR_CORNSILK;
else if( !strcasecmp("crimson", n)) return GAL_COLOR_CRIMSON;
else if( !strcasecmp("cyan", n)) return GAL_COLOR_CYAN;
else if( !strcasecmp("darkblue", n)) return GAL_COLOR_DARKBLUE;
else if( !strcasecmp("darkcyan", n)) return GAL_COLOR_DARKCYAN;
else if( !strcasecmp("darkgoldenrod", n)) return GAL_COLOR_DARKGOLDENROD;
else if( !strcasecmp("darkgray", n)) return GAL_COLOR_DARKGRAY;
else if( !strcasecmp("darkgreen", n)) return GAL_COLOR_DARKGREEN;
else if( !strcasecmp("darkkhaki", n)) return GAL_COLOR_DARKKHAKI;
else if( !strcasecmp("darkmagenta", n)) return GAL_COLOR_DARKMAGENTA;
else if( !strcasecmp("darkolivegreen", n)) return GAL_COLOR_DARKOLIVEGREEN;
else if( !strcasecmp("darkorange", n)) return GAL_COLOR_DARKORANGE;
else if( !strcasecmp("darkorchid", n)) return GAL_COLOR_DARKORCHID;
else if( !strcasecmp("darkred", n)) return GAL_COLOR_DARKRED;
else if( !strcasecmp("darksalmon", n)) return GAL_COLOR_DARKSALMON;
else if( !strcasecmp("darkseagreen", n)) return GAL_COLOR_DARKSEAGREEN;
else if( !strcasecmp("darkslateblue", n)) return GAL_COLOR_DARKSLATEBLUE;
else if( !strcasecmp("darkslategray", n)) return GAL_COLOR_DARKSLATEGRAY;
else if( !strcasecmp("darkturquoise", n)) return GAL_COLOR_DARKTURQUOISE;
else if( !strcasecmp("darkviolet", n)) return GAL_COLOR_DARKVIOLET;
else if( !strcasecmp("deeppink", n)) return GAL_COLOR_DEEPPINK;
else if( !strcasecmp("deepskyblue", n)) return GAL_COLOR_DEEPSKYBLUE;
else if( !strcasecmp("dimgray", n)) return GAL_COLOR_DIMGRAY;
else if( !strcasecmp("dodgerblue", n)) return GAL_COLOR_DODGERBLUE;
else if( !strcasecmp("firebrick", n)) return GAL_COLOR_FIREBRICK;
else if( !strcasecmp("floralwhite", n)) return GAL_COLOR_FLORALWHITE;
else if( !strcasecmp("forestgreen", n)) return GAL_COLOR_FORESTGREEN;
else if( !strcasecmp("fuchsia", n)) return GAL_COLOR_FUCHSIA;
else if( !strcasecmp("gainsboro", n)) return GAL_COLOR_GAINSBORO;
else if( !strcasecmp("ghostwhite", n)) return GAL_COLOR_GHOSTWHITE;
else if( !strcasecmp("gold", n)) return GAL_COLOR_GOLD;
else if( !strcasecmp("goldenrod", n)) return GAL_COLOR_GOLDENROD;
else if( !strcasecmp("gray", n)) return GAL_COLOR_GRAY;
else if( !strcasecmp("green", n)) return GAL_COLOR_GREEN;
else if( !strcasecmp("greenyellow", n)) return GAL_COLOR_GREENYELLOW;
else if( !strcasecmp("honeydew", n)) return GAL_COLOR_HONEYDEW;
else if( !strcasecmp("hotpink", n)) return GAL_COLOR_HOTPINK;
else if( !strcasecmp("indianred", n)) return GAL_COLOR_INDIANRED;
else if( !strcasecmp("indigo", n)) return GAL_COLOR_INDIGO;
else if( !strcasecmp("ivory", n)) return GAL_COLOR_IVORY;
else if( !strcasecmp("khaki", n)) return GAL_COLOR_KHAKI;
else if( !strcasecmp("lavender", n)) return GAL_COLOR_LAVENDER;
else if( !strcasecmp("lavenderblush", n)) return GAL_COLOR_LAVENDERBLUSH;
else if( !strcasecmp("lawngreen", n)) return GAL_COLOR_LAWNGREEN;
else if( !strcasecmp("lemonchiffon", n)) return GAL_COLOR_LEMONCHIFFON;
else if( !strcasecmp("lightblue", n)) return GAL_COLOR_LIGHTBLUE;
else if( !strcasecmp("lightcoral", n)) return GAL_COLOR_LIGHTCORAL;
else if( !strcasecmp("lightcyan", n)) return GAL_COLOR_LIGHTCYAN;
else if( !strcasecmp("lightgoldenrodyellow", n)) return GAL_COLOR_LIGHTGOLDENRODYELLOW;
else if( !strcasecmp("lightgray", n)) return GAL_COLOR_LIGHTGRAY;
else if( !strcasecmp("lightgreen", n)) return GAL_COLOR_LIGHTGREEN;
else if( !strcasecmp("lightpink", n)) return GAL_COLOR_LIGHTPINK;
else if( !strcasecmp("lightsalmon", n)) return GAL_COLOR_LIGHTSALMON;
else if( !strcasecmp("lightseagreen", n)) return GAL_COLOR_LIGHTSEAGREEN;
else if( !strcasecmp("lightskyblue", n)) return GAL_COLOR_LIGHTSKYBLUE;
else if( !strcasecmp("lightslategray", n)) return GAL_COLOR_LIGHTSLATEGRAY;
else if( !strcasecmp("lightsteelblue", n)) return GAL_COLOR_LIGHTSTEELBLUE;
else if( !strcasecmp("lightyellow", n)) return GAL_COLOR_LIGHTYELLOW;
else if( !strcasecmp("lime", n)) return GAL_COLOR_LIME;
else if( !strcasecmp("limegreen", n)) return GAL_COLOR_LIMEGREEN;
else if( !strcasecmp("linen", n)) return GAL_COLOR_LINEN;
else if( !strcasecmp("magenta", n)) return GAL_COLOR_MAGENTA;
else if( !strcasecmp("maroon", n)) return GAL_COLOR_MAROON;
else if( !strcasecmp("mediumaquamarine", n)) return GAL_COLOR_MEDIUMAQUAMARINE;
else if( !strcasecmp("mediumblue", n)) return GAL_COLOR_MEDIUMBLUE;
else if( !strcasecmp("mediumorchid", n)) return GAL_COLOR_MEDIUMORCHID;
else if( !strcasecmp("mediumpurple", n)) return GAL_COLOR_MEDIUMPURPLE;
else if( !strcasecmp("mediumseagreen", n)) return GAL_COLOR_MEDIUMSEAGREEN;
else if( !strcasecmp("mediumslateblue", n)) return GAL_COLOR_MEDIUMSLATEBLUE;
else if( !strcasecmp("mediumspringgreen", n)) return GAL_COLOR_MEDIUMSPRINGGREEN;
else if( !strcasecmp("mediumturquoise", n)) return GAL_COLOR_MEDIUMTURQUOISE;
else if( !strcasecmp("mediumvioletred", n)) return GAL_COLOR_MEDIUMVIOLETRED;
else if( !strcasecmp("midnightblue", n)) return GAL_COLOR_MIDNIGHTBLUE;
else if( !strcasecmp("mintcream", n)) return GAL_COLOR_MINTCREAM;
else if( !strcasecmp("mistyrose", n)) return GAL_COLOR_MISTYROSE;
else if( !strcasecmp("moccasin", n)) return GAL_COLOR_MOCCASIN;
else if( !strcasecmp("navajowhite", n)) return GAL_COLOR_NAVAJOWHITE;
else if( !strcasecmp("navy", n)) return GAL_COLOR_NAVY;
else if( !strcasecmp("oldlace", n)) return GAL_COLOR_OLDLACE;
else if( !strcasecmp("olive", n)) return GAL_COLOR_OLIVE;
else if( !strcasecmp("olivedrab", n)) return GAL_COLOR_OLIVEDRAB;
else if( !strcasecmp("orange", n)) return GAL_COLOR_ORANGE;
else if( !strcasecmp("orangered", n)) return GAL_COLOR_ORANGERED;
else if( !strcasecmp("orchid", n)) return GAL_COLOR_ORCHID;
else if( !strcasecmp("palegoldenrod", n)) return GAL_COLOR_PALEGOLDENROD;
else if( !strcasecmp("palegreen", n)) return GAL_COLOR_PALEGREEN;
else if( !strcasecmp("paleturquoise", n)) return GAL_COLOR_PALETURQUOISE;
else if( !strcasecmp("palevioletred", n)) return GAL_COLOR_PALEVIOLETRED;
else if( !strcasecmp("papayawhip", n)) return GAL_COLOR_PAPAYAWHIP;
else if( !strcasecmp("peachpuff", n)) return GAL_COLOR_PEACHPUFF;
else if( !strcasecmp("peru", n)) return GAL_COLOR_PERU;
else if( !strcasecmp("pink", n)) return GAL_COLOR_PINK;
else if( !strcasecmp("plum", n)) return GAL_COLOR_PLUM;
else if( !strcasecmp("powderblue", n)) return GAL_COLOR_POWDERBLUE;
else if( !strcasecmp("purple", n)) return GAL_COLOR_PURPLE;
else if( !strcasecmp("red", n)) return GAL_COLOR_RED;
else if( !strcasecmp("rosybrown", n)) return GAL_COLOR_ROSYBROWN;
else if( !strcasecmp("royalblue", n)) return GAL_COLOR_ROYALBLUE;
else if( !strcasecmp("saddlebrown", n)) return GAL_COLOR_SADDLEBROWN;
else if( !strcasecmp("salmon", n)) return GAL_COLOR_SALMON;
else if( !strcasecmp("sandybrown", n)) return GAL_COLOR_SANDYBROWN;
else if( !strcasecmp("seagreen", n)) return GAL_COLOR_SEAGREEN;
else if( !strcasecmp("seashell", n)) return GAL_COLOR_SEASHELL;
else if( !strcasecmp("sienna", n)) return GAL_COLOR_SIENNA;
else if( !strcasecmp("silver", n)) return GAL_COLOR_SILVER;
else if( !strcasecmp("skyblue", n)) return GAL_COLOR_SKYBLUE;
else if( !strcasecmp("slateblue", n)) return GAL_COLOR_SLATEBLUE;
else if( !strcasecmp("slategray", n)) return GAL_COLOR_SLATEGRAY;
else if( !strcasecmp("snow", n)) return GAL_COLOR_SNOW;
else if( !strcasecmp("springgreen", n)) return GAL_COLOR_SPRINGGREEN;
else if( !strcasecmp("steelblue", n)) return GAL_COLOR_STEELBLUE;
else if( !strcasecmp("tan", n)) return GAL_COLOR_TAN;
else if( !strcasecmp("teal", n)) return GAL_COLOR_TEAL;
else if( !strcasecmp("thistle", n)) return GAL_COLOR_THISTLE;
else if( !strcasecmp("tomato", n)) return GAL_COLOR_TOMATO;
else if( !strcasecmp("turquoise", n)) return GAL_COLOR_TURQUOISE;
else if( !strcasecmp("violet", n)) return GAL_COLOR_VIOLET;
else if( !strcasecmp("wheat", n)) return GAL_COLOR_WHEAT;
else if( !strcasecmp("white", n)) return GAL_COLOR_WHITE;
else if( !strcasecmp("whitesmoke", n)) return GAL_COLOR_WHITESMOKE;
else if( !strcasecmp("yellow", n)) return GAL_COLOR_YELLOW;
else if( !strcasecmp("yellowgreen", n)) return GAL_COLOR_YELLOWGREEN;
else
printf("%s: name '%s' is not recognized. Gnuastro uses the "
"extended HTML color names described in the following "
"link (the names are not case sensitive in Gnuastro):"
"https://en.wikipedia.org/wiki/Web_colors#Extended_colors\n",
__func__, n);
/* Control should not reach here. */
error(EXIT_FAILURE, 0, "%s: a bug! Please contact us at %s to find "
"and solve the problem. Control should not reach this part "
"of the function", __func__, PACKAGE_BUGREPORT);
return GAL_COLOR_INVALID;
}
/* Return the name of each color. */
char *
gal_color_id_to_name(uint8_t color)
{
switch(color)
{
case GAL_COLOR_ALICEBLUE: return "aliceblue";
case GAL_COLOR_ANTIQUEWHITE: return "antiquewhite";
case GAL_COLOR_AQUA: return "aqua";
case GAL_COLOR_AQUAMARINE: return "aquamarine";
case GAL_COLOR_AZURE: return "azure";
case GAL_COLOR_BEIGE: return "beige";
case GAL_COLOR_BISQUE: return "bisque";
case GAL_COLOR_BLACK: return "black";
case GAL_COLOR_BLANCHEDALMOND: return "blanchedalmond";
case GAL_COLOR_BLUE: return "blue";
case GAL_COLOR_BLUEVIOLET: return "blueviolet";
case GAL_COLOR_BROWN: return "brown";
case GAL_COLOR_BURLYWOOD: return "burlywood";
case GAL_COLOR_CADETBLUE: return "cadetblue";
case GAL_COLOR_CHARTREUSE: return "chartreuse";
case GAL_COLOR_CHOCOLATE: return "chocolate";
case GAL_COLOR_CORAL: return "coral";
case GAL_COLOR_CORNFLOWERBLUE: return "cornflowerblue";
case GAL_COLOR_CORNSILK: return "cornsilk";
case GAL_COLOR_CRIMSON: return "crimson";
case GAL_COLOR_CYAN: return "cyan";
case GAL_COLOR_DARKBLUE: return "darkblue";
case GAL_COLOR_DARKCYAN: return "darkcyan";
case GAL_COLOR_DARKGOLDENROD: return "darkgoldenrod";
case GAL_COLOR_DARKGRAY: return "darkgray";
case GAL_COLOR_DARKGREEN: return "darkgreen";
case GAL_COLOR_DARKKHAKI: return "darkkhaki";
case GAL_COLOR_DARKMAGENTA: return "darkmagenta";
case GAL_COLOR_DARKOLIVEGREEN: return "darkolivegreen";
case GAL_COLOR_DARKORANGE: return "darkorange";
case GAL_COLOR_DARKORCHID: return "darkorchid";
case GAL_COLOR_DARKRED: return "darkred";
case GAL_COLOR_DARKSALMON: return "darksalmon";
case GAL_COLOR_DARKSEAGREEN: return "darkseagreen";
case GAL_COLOR_DARKSLATEBLUE: return "darkslateblue";
case GAL_COLOR_DARKSLATEGRAY: return "darkslategray";
case GAL_COLOR_DARKTURQUOISE: return "darkturquoise";
case GAL_COLOR_DARKVIOLET: return "darkviolet";
case GAL_COLOR_DEEPPINK: return "deeppink";
case GAL_COLOR_DEEPSKYBLUE: return "deepskyblue";
case GAL_COLOR_DIMGRAY: return "dimgray";
case GAL_COLOR_DODGERBLUE: return "dodgerblue";
case GAL_COLOR_FIREBRICK: return "firebrick";
case GAL_COLOR_FLORALWHITE: return "floralwhite";
case GAL_COLOR_FORESTGREEN: return "forestgreen";
case GAL_COLOR_FUCHSIA: return "fuchsia";
case GAL_COLOR_GAINSBORO: return "gainsboro";
case GAL_COLOR_GHOSTWHITE: return "ghostwhite";
case GAL_COLOR_GOLD: return "gold";
case GAL_COLOR_GOLDENROD: return "goldenrod";
case GAL_COLOR_GRAY: return "gray";
case GAL_COLOR_GREEN: return "green";
case GAL_COLOR_GREENYELLOW: return "greenyellow";
case GAL_COLOR_HONEYDEW: return "honeydew";
case GAL_COLOR_HOTPINK: return "hotpink";
case GAL_COLOR_INDIANRED: return "indianred";
case GAL_COLOR_INDIGO: return "indigo";
case GAL_COLOR_IVORY: return "ivory";
case GAL_COLOR_KHAKI: return "khaki";
case GAL_COLOR_LAVENDER: return "lavender";
case GAL_COLOR_LAVENDERBLUSH: return "lavenderblush";
case GAL_COLOR_LAWNGREEN: return "lawngreen";
case GAL_COLOR_LEMONCHIFFON: return "lemonchiffon";
case GAL_COLOR_LIGHTBLUE: return "lightblue";
case GAL_COLOR_LIGHTCORAL: return "lightcoral";
case GAL_COLOR_LIGHTCYAN: return "lightcyan";
case GAL_COLOR_LIGHTGOLDENRODYELLOW: return "lightgoldenrodyellow";
case GAL_COLOR_LIGHTGRAY: return "lightgray";
case GAL_COLOR_LIGHTGREEN: return "lightgreen";
case GAL_COLOR_LIGHTPINK: return "lightpink";
case GAL_COLOR_LIGHTSALMON: return "lightsalmon";
case GAL_COLOR_LIGHTSEAGREEN: return "lightseagreen";
case GAL_COLOR_LIGHTSKYBLUE: return "lightskyblue";
case GAL_COLOR_LIGHTSLATEGRAY: return "lightslategray";
case GAL_COLOR_LIGHTSTEELBLUE: return "lightsteelblue";
case GAL_COLOR_LIGHTYELLOW: return "lightyellow";
case GAL_COLOR_LIME: return "lime";
case GAL_COLOR_LIMEGREEN: return "limegreen";
case GAL_COLOR_LINEN: return "linen";
case GAL_COLOR_MAGENTA: return "magenta";
case GAL_COLOR_MAROON: return "maroon";
case GAL_COLOR_MEDIUMAQUAMARINE: return "mediumaquamarine";
case GAL_COLOR_MEDIUMBLUE: return "mediumblue";
case GAL_COLOR_MEDIUMORCHID: return "mediumorchid";
case GAL_COLOR_MEDIUMPURPLE: return "mediumpurple";
case GAL_COLOR_MEDIUMSEAGREEN: return "mediumseagreen";
case GAL_COLOR_MEDIUMSLATEBLUE: return "mediumslateblue";
case GAL_COLOR_MEDIUMSPRINGGREEN: return "mediumspringgreen";
case GAL_COLOR_MEDIUMTURQUOISE: return "mediumturquoise";
case GAL_COLOR_MEDIUMVIOLETRED: return "mediumvioletred";
case GAL_COLOR_MIDNIGHTBLUE: return "midnightblue";
case GAL_COLOR_MINTCREAM: return "mintcream";
case GAL_COLOR_MISTYROSE: return "mistyrose";
case GAL_COLOR_MOCCASIN: return "moccasin";
case GAL_COLOR_NAVAJOWHITE: return "navajowhite";
case GAL_COLOR_NAVY: return "navy";
case GAL_COLOR_OLDLACE: return "oldlace";
case GAL_COLOR_OLIVE: return "olive";
case GAL_COLOR_OLIVEDRAB: return "olivedrab";
case GAL_COLOR_ORANGE: return "orange";
case GAL_COLOR_ORANGERED: return "orangered";
case GAL_COLOR_ORCHID: return "orchid";
case GAL_COLOR_PALEGOLDENROD: return "palegoldenrod";
case GAL_COLOR_PALEGREEN: return "palegreen";
case GAL_COLOR_PALETURQUOISE: return "paleturquoise";
case GAL_COLOR_PALEVIOLETRED: return "palevioletred";
case GAL_COLOR_PAPAYAWHIP: return "papayawhip";
case GAL_COLOR_PEACHPUFF: return "peachpuff";
case GAL_COLOR_PERU: return "peru";
case GAL_COLOR_PINK: return "pink";
case GAL_COLOR_PLUM: return "plum";
case GAL_COLOR_POWDERBLUE: return "powderblue";
case GAL_COLOR_PURPLE: return "purple";
case GAL_COLOR_RED: return "red";
case GAL_COLOR_ROSYBROWN: return "rosybrown";
case GAL_COLOR_ROYALBLUE: return "royalblue";
case GAL_COLOR_SADDLEBROWN: return "saddlebrown";
case GAL_COLOR_SALMON: return "salmon";
case GAL_COLOR_SANDYBROWN: return "sandybrown";
case GAL_COLOR_SEAGREEN: return "seagreen";
case GAL_COLOR_SEASHELL: return "seashell";
case GAL_COLOR_SIENNA: return "sienna";
case GAL_COLOR_SILVER: return "silver";
case GAL_COLOR_SKYBLUE: return "skyblue";
case GAL_COLOR_SLATEBLUE: return "slateblue";
case GAL_COLOR_SLATEGRAY: return "slategray";
case GAL_COLOR_SNOW: return "snow";
case GAL_COLOR_SPRINGGREEN: return "springgreen";
case GAL_COLOR_STEELBLUE: return "steelblue";
case GAL_COLOR_TAN: return "tan";
case GAL_COLOR_TEAL: return "teal";
case GAL_COLOR_THISTLE: return "thistle";
case GAL_COLOR_TOMATO: return "tomato";
case GAL_COLOR_TURQUOISE: return "turquoise";
case GAL_COLOR_VIOLET: return "violet";
case GAL_COLOR_WHEAT: return "wheat";
case GAL_COLOR_WHITE: return "white";
case GAL_COLOR_WHITESMOKE: return "whitesmoke";
case GAL_COLOR_YELLOW: return "yellow";
case GAL_COLOR_YELLOWGREEN: return "yellowgreen";
default:
error(EXIT_FAILURE, 0, "%s: color id '%u' is not recognized",
__func__, color);
}
/* Control should not reach here. */
error(EXIT_FAILURE, 0, "%s: a bug! Please contact us at %s to find "
"and solve the problem. Control should not reach this part "
"of the function", __func__, PACKAGE_BUGREPORT);
return GAL_BLANK_STRING;
}
/* Return the fractional RGB color space of pre-defined colors. We are
using 'n' for "name" and 'f' for RGB-Fractional value to help in
readability. The names and values are taken from the extended HTML/CSS
colors: https://en.wikipedia.org/wiki/Web_colors#HTML_color_names.
After copying the names and values into a plain-text file (by mouse,
group by group, 'color.txt'), I converted it to the format used in this
function with the following AWK command:
awk '{printf "case GAL_COLOR_%s: ", toupper($1); \
printf "f[0]=%.2f; f[1]=%.2f; f[2]=%.2f; break;\n", \
$5/255, $6/255, $7/255}' colors.txt \
| sort \
| awk '{printf "%s %-25s %s %s %s %s\n", \
$1, $2, $3, $4, $5, $6}'
*/
void
gal_color_in_rgb(uint8_t color, float *f)
{
switch(color)
{
case GAL_COLOR_ALICEBLUE: f[0]=0.94; f[1]=0.97; f[2]=1.00; break;
case GAL_COLOR_ANTIQUEWHITE: f[0]=0.98; f[1]=0.92; f[2]=0.84; break;
case GAL_COLOR_AQUA: f[0]=0.00; f[1]=1.00; f[2]=1.00; break;
case GAL_COLOR_AQUAMARINE: f[0]=0.50; f[1]=1.00; f[2]=0.83; break;
case GAL_COLOR_AZURE: f[0]=0.94; f[1]=1.00; f[2]=1.00; break;
case GAL_COLOR_BEIGE: f[0]=0.96; f[1]=0.96; f[2]=0.86; break;
case GAL_COLOR_BISQUE: f[0]=1.00; f[1]=0.89; f[2]=0.77; break;
case GAL_COLOR_BLACK: f[0]=0.00; f[1]=0.00; f[2]=0.00; break;
case GAL_COLOR_BLANCHEDALMOND: f[0]=1.00; f[1]=0.92; f[2]=0.80; break;
case GAL_COLOR_BLUE: f[0]=0.00; f[1]=0.00; f[2]=1.00; break;
case GAL_COLOR_BLUEVIOLET: f[0]=0.54; f[1]=0.17; f[2]=0.89; break;
case GAL_COLOR_BROWN: f[0]=0.65; f[1]=0.16; f[2]=0.16; break;
case GAL_COLOR_BURLYWOOD: f[0]=0.87; f[1]=0.72; f[2]=0.53; break;
case GAL_COLOR_CADETBLUE: f[0]=0.37; f[1]=0.62; f[2]=0.63; break;
case GAL_COLOR_CHARTREUSE: f[0]=0.50; f[1]=1.00; f[2]=0.00; break;
case GAL_COLOR_CHOCOLATE: f[0]=0.82; f[1]=0.41; f[2]=0.12; break;
case GAL_COLOR_CORAL: f[0]=1.00; f[1]=0.50; f[2]=0.31; break;
case GAL_COLOR_CORNFLOWERBLUE: f[0]=0.39; f[1]=0.58; f[2]=0.93; break;
case GAL_COLOR_CORNSILK: f[0]=1.00; f[1]=0.97; f[2]=0.86; break;
case GAL_COLOR_CRIMSON: f[0]=0.86; f[1]=0.08; f[2]=0.24; break;
case GAL_COLOR_CYAN: f[0]=0.00; f[1]=1.00; f[2]=1.00; break;
case GAL_COLOR_DARKBLUE: f[0]=0.00; f[1]=0.00; f[2]=0.55; break;
case GAL_COLOR_DARKCYAN: f[0]=0.00; f[1]=0.55; f[2]=0.55; break;
case GAL_COLOR_DARKGOLDENROD: f[0]=0.72; f[1]=0.53; f[2]=0.04; break;
case GAL_COLOR_DARKGRAY: f[0]=0.66; f[1]=0.66; f[2]=0.66; break;
case GAL_COLOR_DARKGREEN: f[0]=0.00; f[1]=0.39; f[2]=0.00; break;
case GAL_COLOR_DARKKHAKI: f[0]=0.74; f[1]=0.72; f[2]=0.42; break;
case GAL_COLOR_DARKMAGENTA: f[0]=0.55; f[1]=0.00; f[2]=0.55; break;
case GAL_COLOR_DARKOLIVEGREEN: f[0]=0.33; f[1]=0.42; f[2]=0.18; break;
case GAL_COLOR_DARKORANGE: f[0]=1.00; f[1]=0.55; f[2]=0.00; break;
case GAL_COLOR_DARKORCHID: f[0]=0.60; f[1]=0.20; f[2]=0.80; break;
case GAL_COLOR_DARKRED: f[0]=0.55; f[1]=0.00; f[2]=0.00; break;
case GAL_COLOR_DARKSALMON: f[0]=0.91; f[1]=0.59; f[2]=0.48; break;
case GAL_COLOR_DARKSEAGREEN: f[0]=0.56; f[1]=0.74; f[2]=0.56; break;
case GAL_COLOR_DARKSLATEBLUE: f[0]=0.28; f[1]=0.24; f[2]=0.55; break;
case GAL_COLOR_DARKSLATEGRAY: f[0]=0.18; f[1]=0.31; f[2]=0.31; break;
case GAL_COLOR_DARKTURQUOISE: f[0]=0.00; f[1]=0.81; f[2]=0.82; break;
case GAL_COLOR_DARKVIOLET: f[0]=0.58; f[1]=0.00; f[2]=0.83; break;
case GAL_COLOR_DEEPPINK: f[0]=1.00; f[1]=0.08; f[2]=0.58; break;
case GAL_COLOR_DEEPSKYBLUE: f[0]=0.00; f[1]=0.75; f[2]=1.00; break;
case GAL_COLOR_DIMGRAY: f[0]=0.41; f[1]=0.41; f[2]=0.41; break;
case GAL_COLOR_DODGERBLUE: f[0]=0.12; f[1]=0.56; f[2]=1.00; break;
case GAL_COLOR_FIREBRICK: f[0]=0.70; f[1]=0.13; f[2]=0.13; break;
case GAL_COLOR_FLORALWHITE: f[0]=1.00; f[1]=0.98; f[2]=0.94; break;
case GAL_COLOR_FORESTGREEN: f[0]=0.13; f[1]=0.55; f[2]=0.13; break;
case GAL_COLOR_FUCHSIA: f[0]=1.00; f[1]=0.00; f[2]=1.00; break;
case GAL_COLOR_GAINSBORO: f[0]=0.86; f[1]=0.86; f[2]=0.86; break;
case GAL_COLOR_GHOSTWHITE: f[0]=0.97; f[1]=0.97; f[2]=1.00; break;
case GAL_COLOR_GOLDENROD: f[0]=0.85; f[1]=0.65; f[2]=0.13; break;
case GAL_COLOR_GOLD: f[0]=1.00; f[1]=0.84; f[2]=0.00; break;
case GAL_COLOR_GRAY: f[0]=0.50; f[1]=0.50; f[2]=0.50; break;
case GAL_COLOR_GREEN: f[0]=0.00; f[1]=0.50; f[2]=0.00; break;
case GAL_COLOR_GREENYELLOW: f[0]=0.68; f[1]=1.00; f[2]=0.18; break;
case GAL_COLOR_HONEYDEW: f[0]=0.94; f[1]=1.00; f[2]=0.94; break;
case GAL_COLOR_HOTPINK: f[0]=1.00; f[1]=0.41; f[2]=0.71; break;
case GAL_COLOR_INDIANRED: f[0]=0.80; f[1]=0.36; f[2]=0.36; break;
case GAL_COLOR_INDIGO: f[0]=0.29; f[1]=0.00; f[2]=0.51; break;
case GAL_COLOR_IVORY: f[0]=1.00; f[1]=1.00; f[2]=0.94; break;
case GAL_COLOR_KHAKI: f[0]=0.94; f[1]=0.90; f[2]=0.55; break;
case GAL_COLOR_LAVENDERBLUSH: f[0]=1.00; f[1]=0.94; f[2]=0.96; break;
case GAL_COLOR_LAVENDER: f[0]=0.90; f[1]=0.90; f[2]=0.98; break;
case GAL_COLOR_LAWNGREEN: f[0]=0.49; f[1]=0.99; f[2]=0.00; break;
case GAL_COLOR_LEMONCHIFFON: f[0]=1.00; f[1]=0.98; f[2]=0.80; break;
case GAL_COLOR_LIGHTBLUE: f[0]=0.68; f[1]=0.85; f[2]=0.90; break;
case GAL_COLOR_LIGHTCORAL: f[0]=0.94; f[1]=0.50; f[2]=0.50; break;
case GAL_COLOR_LIGHTCYAN: f[0]=0.88; f[1]=1.00; f[2]=1.00; break;
case GAL_COLOR_LIGHTGOLDENRODYELLOW: f[0]=0.98; f[1]=0.98; f[2]=0.82; break;
case GAL_COLOR_LIGHTGRAY: f[0]=0.83; f[1]=0.83; f[2]=0.83; break;
case GAL_COLOR_LIGHTGREEN: f[0]=0.56; f[1]=0.93; f[2]=0.56; break;
case GAL_COLOR_LIGHTPINK: f[0]=1.00; f[1]=0.71; f[2]=0.76; break;
case GAL_COLOR_LIGHTSALMON: f[0]=1.00; f[1]=0.63; f[2]=0.48; break;
case GAL_COLOR_LIGHTSEAGREEN: f[0]=0.13; f[1]=0.70; f[2]=0.67; break;
case GAL_COLOR_LIGHTSKYBLUE: f[0]=0.53; f[1]=0.81; f[2]=0.98; break;
case GAL_COLOR_LIGHTSLATEGRAY: f[0]=0.47; f[1]=0.53; f[2]=0.60; break;
case GAL_COLOR_LIGHTSTEELBLUE: f[0]=0.69; f[1]=0.77; f[2]=0.87; break;
case GAL_COLOR_LIGHTYELLOW: f[0]=1.00; f[1]=1.00; f[2]=0.88; break;
case GAL_COLOR_LIME: f[0]=0.00; f[1]=1.00; f[2]=0.00; break;
case GAL_COLOR_LIMEGREEN: f[0]=0.20; f[1]=0.80; f[2]=0.20; break;
case GAL_COLOR_LINEN: f[0]=0.98; f[1]=0.94; f[2]=0.90; break;
case GAL_COLOR_MAGENTA: f[0]=1.00; f[1]=0.00; f[2]=1.00; break;
case GAL_COLOR_MAROON: f[0]=0.50; f[1]=0.00; f[2]=0.00; break;
case GAL_COLOR_MEDIUMAQUAMARINE: f[0]=0.40; f[1]=0.80; f[2]=0.67; break;
case GAL_COLOR_MEDIUMBLUE: f[0]=0.00; f[1]=0.00; f[2]=0.80; break;
case GAL_COLOR_MEDIUMORCHID: f[0]=0.73; f[1]=0.33; f[2]=0.83; break;
case GAL_COLOR_MEDIUMPURPLE: f[0]=0.58; f[1]=0.44; f[2]=0.86; break;
case GAL_COLOR_MEDIUMSEAGREEN: f[0]=0.24; f[1]=0.70; f[2]=0.44; break;
case GAL_COLOR_MEDIUMSLATEBLUE: f[0]=0.48; f[1]=0.41; f[2]=0.93; break;
case GAL_COLOR_MEDIUMSPRINGGREEN: f[0]=0.00; f[1]=0.98; f[2]=0.60; break;
case GAL_COLOR_MEDIUMTURQUOISE: f[0]=0.28; f[1]=0.82; f[2]=0.80; break;
case GAL_COLOR_MEDIUMVIOLETRED: f[0]=0.78; f[1]=0.08; f[2]=0.52; break;
case GAL_COLOR_MIDNIGHTBLUE: f[0]=0.10; f[1]=0.10; f[2]=0.44; break;
case GAL_COLOR_MINTCREAM: f[0]=0.96; f[1]=1.00; f[2]=0.98; break;
case GAL_COLOR_MISTYROSE: f[0]=1.00; f[1]=0.89; f[2]=0.88; break;
case GAL_COLOR_MOCCASIN: f[0]=1.00; f[1]=0.89; f[2]=0.71; break;
case GAL_COLOR_NAVAJOWHITE: f[0]=1.00; f[1]=0.87; f[2]=0.68; break;
case GAL_COLOR_NAVY: f[0]=0.00; f[1]=0.00; f[2]=0.50; break;
case GAL_COLOR_OLDLACE: f[0]=0.99; f[1]=0.96; f[2]=0.90; break;
case GAL_COLOR_OLIVEDRAB: f[0]=0.42; f[1]=0.56; f[2]=0.14; break;
case GAL_COLOR_OLIVE: f[0]=0.50; f[1]=0.50; f[2]=0.00; break;
case GAL_COLOR_ORANGE: f[0]=1.00; f[1]=0.65; f[2]=0.00; break;
case GAL_COLOR_ORANGERED: f[0]=1.00; f[1]=0.27; f[2]=0.00; break;
case GAL_COLOR_ORCHID: f[0]=0.85; f[1]=0.44; f[2]=0.84; break;
case GAL_COLOR_PALEGOLDENROD: f[0]=0.93; f[1]=0.91; f[2]=0.67; break;
case GAL_COLOR_PALEGREEN: f[0]=0.60; f[1]=0.98; f[2]=0.60; break;
case GAL_COLOR_PALETURQUOISE: f[0]=0.69; f[1]=0.93; f[2]=0.93; break;
case GAL_COLOR_PALEVIOLETRED: f[0]=0.86; f[1]=0.44; f[2]=0.58; break;
case GAL_COLOR_PAPAYAWHIP: f[0]=1.00; f[1]=0.94; f[2]=0.84; break;
case GAL_COLOR_PEACHPUFF: f[0]=1.00; f[1]=0.85; f[2]=0.73; break;
case GAL_COLOR_PERU: f[0]=0.80; f[1]=0.52; f[2]=0.25; break;
case GAL_COLOR_PINK: f[0]=1.00; f[1]=0.75; f[2]=0.80; break;
case GAL_COLOR_PLUM: f[0]=0.87; f[1]=0.63; f[2]=0.87; break;
case GAL_COLOR_POWDERBLUE: f[0]=0.69; f[1]=0.88; f[2]=0.90; break;
case GAL_COLOR_PURPLE: f[0]=0.50; f[1]=0.00; f[2]=0.50; break;
case GAL_COLOR_RED: f[0]=1.00; f[1]=0.00; f[2]=0.00; break;
case GAL_COLOR_ROSYBROWN: f[0]=0.74; f[1]=0.56; f[2]=0.56; break;
case GAL_COLOR_ROYALBLUE: f[0]=0.25; f[1]=0.41; f[2]=0.88; break;
case GAL_COLOR_SADDLEBROWN: f[0]=0.55; f[1]=0.27; f[2]=0.07; break;
case GAL_COLOR_SALMON: f[0]=0.98; f[1]=0.50; f[2]=0.45; break;
case GAL_COLOR_SANDYBROWN: f[0]=0.96; f[1]=0.64; f[2]=0.38; break;
case GAL_COLOR_SEAGREEN: f[0]=0.18; f[1]=0.55; f[2]=0.34; break;
case GAL_COLOR_SEASHELL: f[0]=1.00; f[1]=0.96; f[2]=0.93; break;
case GAL_COLOR_SIENNA: f[0]=0.63; f[1]=0.32; f[2]=0.18; break;
case GAL_COLOR_SILVER: f[0]=0.75; f[1]=0.75; f[2]=0.75; break;
case GAL_COLOR_SKYBLUE: f[0]=0.53; f[1]=0.81; f[2]=0.92; break;
case GAL_COLOR_SLATEBLUE: f[0]=0.42; f[1]=0.35; f[2]=0.80; break;
case GAL_COLOR_SLATEGRAY: f[0]=0.44; f[1]=0.50; f[2]=0.56; break;
case GAL_COLOR_SNOW: f[0]=1.00; f[1]=0.98; f[2]=0.98; break;
case GAL_COLOR_SPRINGGREEN: f[0]=0.00; f[1]=1.00; f[2]=0.50; break;
case GAL_COLOR_STEELBLUE: f[0]=0.27; f[1]=0.51; f[2]=0.71; break;
case GAL_COLOR_TAN: f[0]=0.82; f[1]=0.71; f[2]=0.55; break;
case GAL_COLOR_TEAL: f[0]=0.00; f[1]=0.50; f[2]=0.50; break;
case GAL_COLOR_THISTLE: f[0]=0.85; f[1]=0.75; f[2]=0.85; break;
case GAL_COLOR_TOMATO: f[0]=1.00; f[1]=0.39; f[2]=0.28; break;
case GAL_COLOR_TURQUOISE: f[0]=0.25; f[1]=0.88; f[2]=0.82; break;
case GAL_COLOR_VIOLET: f[0]=0.93; f[1]=0.51; f[2]=0.93; break;
case GAL_COLOR_WHEAT: f[0]=0.96; f[1]=0.87; f[2]=0.70; break;
case GAL_COLOR_WHITE: f[0]=1.00; f[1]=1.00; f[2]=1.00; break;
case GAL_COLOR_WHITESMOKE: f[0]=0.96; f[1]=0.96; f[2]=0.96; break;
case GAL_COLOR_YELLOW: f[0]=1.00; f[1]=1.00; f[2]=0.00; break;
case GAL_COLOR_YELLOWGREEN: f[0]=0.60; f[1]=0.80; f[2]=0.20; break;
default:
error(EXIT_FAILURE, 0, "%s: code '%u' doesn't correspond to "
"any recognized color", __func__, color);
}
}
|
