diff options
Diffstat (limited to 'grub-core/video/colors.c')
| -rw-r--r-- | grub-core/video/colors.c | 333 |
1 files changed, 333 insertions, 0 deletions
diff --git a/grub-core/video/colors.c b/grub-core/video/colors.c new file mode 100644 index 0000000..485ebb4 --- /dev/null +++ b/grub-core/video/colors.c @@ -0,0 +1,333 @@ +/* named_colors.c - Named color values. */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2008 Free Software Foundation, Inc. + * + * GRUB 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. + * + * GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <grub/types.h> +#include <grub/gui.h> +#include <grub/gui_string_util.h> +#include <grub/misc.h> +#include <grub/dl.h> +#include <grub/i18n.h> +#include <grub/color.h> + +GRUB_MOD_LICENSE ("GPLv3+"); + +struct named_color +{ + const char *name; + grub_video_rgba_color_t color; +}; + +/* + Named color list generated from the list of SVG color keywords from + <http://www.w3.org/TR/css3-color/#svg-color>, + processed through the following Perl command: + perl -ne 'chomp;split;print "{ \"$_[0]\", RGB_COLOR($_[2]) },\n"' + */ + +#define RGB_COLOR(r,g,b) {.red = r, .green = g, .blue = b, .alpha = 255} + +static struct named_color named_colors[] = +{ + { "aliceblue", RGB_COLOR(240,248,255) }, + { "antiquewhite", RGB_COLOR(250,235,215) }, + { "aqua", RGB_COLOR(0,255,255) }, + { "aquamarine", RGB_COLOR(127,255,212) }, + { "azure", RGB_COLOR(240,255,255) }, + { "beige", RGB_COLOR(245,245,220) }, + { "bisque", RGB_COLOR(255,228,196) }, + { "black", RGB_COLOR(0,0,0) }, + { "blanchedalmond", RGB_COLOR(255,235,205) }, + { "blue", RGB_COLOR(0,0,255) }, + { "blueviolet", RGB_COLOR(138,43,226) }, + { "brown", RGB_COLOR(165,42,42) }, + { "burlywood", RGB_COLOR(222,184,135) }, + { "cadetblue", RGB_COLOR(95,158,160) }, + { "chartreuse", RGB_COLOR(127,255,0) }, + { "chocolate", RGB_COLOR(210,105,30) }, + { "coral", RGB_COLOR(255,127,80) }, + { "cornflowerblue", RGB_COLOR(100,149,237) }, + { "cornsilk", RGB_COLOR(255,248,220) }, + { "crimson", RGB_COLOR(220,20,60) }, + { "cyan", RGB_COLOR(0,255,255) }, + { "darkblue", RGB_COLOR(0,0,139) }, + { "darkcyan", RGB_COLOR(0,139,139) }, + { "darkgoldenrod", RGB_COLOR(184,134,11) }, + { "darkgray", RGB_COLOR(169,169,169) }, + { "darkgreen", RGB_COLOR(0,100,0) }, + { "darkgrey", RGB_COLOR(169,169,169) }, + { "darkkhaki", RGB_COLOR(189,183,107) }, + { "darkmagenta", RGB_COLOR(139,0,139) }, + { "darkolivegreen", RGB_COLOR(85,107,47) }, + { "darkorange", RGB_COLOR(255,140,0) }, + { "darkorchid", RGB_COLOR(153,50,204) }, + { "darkred", RGB_COLOR(139,0,0) }, + { "darksalmon", RGB_COLOR(233,150,122) }, + { "darkseagreen", RGB_COLOR(143,188,143) }, + { "darkslateblue", RGB_COLOR(72,61,139) }, + { "darkslategray", RGB_COLOR(47,79,79) }, + { "darkslategrey", RGB_COLOR(47,79,79) }, + { "darkturquoise", RGB_COLOR(0,206,209) }, + { "darkviolet", RGB_COLOR(148,0,211) }, + { "deeppink", RGB_COLOR(255,20,147) }, + { "deepskyblue", RGB_COLOR(0,191,255) }, + { "dimgray", RGB_COLOR(105,105,105) }, + { "dimgrey", RGB_COLOR(105,105,105) }, + { "dodgerblue", RGB_COLOR(30,144,255) }, + { "firebrick", RGB_COLOR(178,34,34) }, + { "floralwhite", RGB_COLOR(255,250,240) }, + { "forestgreen", RGB_COLOR(34,139,34) }, + { "fuchsia", RGB_COLOR(255,0,255) }, + { "gainsboro", RGB_COLOR(220,220,220) }, + { "ghostwhite", RGB_COLOR(248,248,255) }, + { "gold", RGB_COLOR(255,215,0) }, + { "goldenrod", RGB_COLOR(218,165,32) }, + { "gray", RGB_COLOR(128,128,128) }, + { "green", RGB_COLOR(0,128,0) }, + { "greenyellow", RGB_COLOR(173,255,47) }, + { "grey", RGB_COLOR(128,128,128) }, + { "honeydew", RGB_COLOR(240,255,240) }, + { "hotpink", RGB_COLOR(255,105,180) }, + { "indianred", RGB_COLOR(205,92,92) }, + { "indigo", RGB_COLOR(75,0,130) }, + { "ivory", RGB_COLOR(255,255,240) }, + { "khaki", RGB_COLOR(240,230,140) }, + { "lavender", RGB_COLOR(230,230,250) }, + { "lavenderblush", RGB_COLOR(255,240,245) }, + { "lawngreen", RGB_COLOR(124,252,0) }, + { "lemonchiffon", RGB_COLOR(255,250,205) }, + { "lightblue", RGB_COLOR(173,216,230) }, + { "lightcoral", RGB_COLOR(240,128,128) }, + { "lightcyan", RGB_COLOR(224,255,255) }, + { "lightgoldenrodyellow", RGB_COLOR(250,250,210) }, + { "lightgray", RGB_COLOR(211,211,211) }, + { "lightgreen", RGB_COLOR(144,238,144) }, + { "lightgrey", RGB_COLOR(211,211,211) }, + { "lightpink", RGB_COLOR(255,182,193) }, + { "lightsalmon", RGB_COLOR(255,160,122) }, + { "lightseagreen", RGB_COLOR(32,178,170) }, + { "lightskyblue", RGB_COLOR(135,206,250) }, + { "lightslategray", RGB_COLOR(119,136,153) }, + { "lightslategrey", RGB_COLOR(119,136,153) }, + { "lightsteelblue", RGB_COLOR(176,196,222) }, + { "lightyellow", RGB_COLOR(255,255,224) }, + { "lime", RGB_COLOR(0,255,0) }, + { "limegreen", RGB_COLOR(50,205,50) }, + { "linen", RGB_COLOR(250,240,230) }, + { "magenta", RGB_COLOR(255,0,255) }, + { "maroon", RGB_COLOR(128,0,0) }, + { "mediumaquamarine", RGB_COLOR(102,205,170) }, + { "mediumblue", RGB_COLOR(0,0,205) }, + { "mediumorchid", RGB_COLOR(186,85,211) }, + { "mediumpurple", RGB_COLOR(147,112,219) }, + { "mediumseagreen", RGB_COLOR(60,179,113) }, + { "mediumslateblue", RGB_COLOR(123,104,238) }, + { "mediumspringgreen", RGB_COLOR(0,250,154) }, + { "mediumturquoise", RGB_COLOR(72,209,204) }, + { "mediumvioletred", RGB_COLOR(199,21,133) }, + { "midnightblue", RGB_COLOR(25,25,112) }, + { "mintcream", RGB_COLOR(245,255,250) }, + { "mistyrose", RGB_COLOR(255,228,225) }, + { "moccasin", RGB_COLOR(255,228,181) }, + { "navajowhite", RGB_COLOR(255,222,173) }, + { "navy", RGB_COLOR(0,0,128) }, + { "oldlace", RGB_COLOR(253,245,230) }, + { "olive", RGB_COLOR(128,128,0) }, + { "olivedrab", RGB_COLOR(107,142,35) }, + { "orange", RGB_COLOR(255,165,0) }, + { "orangered", RGB_COLOR(255,69,0) }, + { "orchid", RGB_COLOR(218,112,214) }, + { "palegoldenrod", RGB_COLOR(238,232,170) }, + { "palegreen", RGB_COLOR(152,251,152) }, + { "paleturquoise", RGB_COLOR(175,238,238) }, + { "palevioletred", RGB_COLOR(219,112,147) }, + { "papayawhip", RGB_COLOR(255,239,213) }, + { "peachpuff", RGB_COLOR(255,218,185) }, + { "peru", RGB_COLOR(205,133,63) }, + { "pink", RGB_COLOR(255,192,203) }, + { "plum", RGB_COLOR(221,160,221) }, + { "powderblue", RGB_COLOR(176,224,230) }, + { "purple", RGB_COLOR(128,0,128) }, + { "red", RGB_COLOR(255,0,0) }, + { "rosybrown", RGB_COLOR(188,143,143) }, + { "royalblue", RGB_COLOR(65,105,225) }, + { "saddlebrown", RGB_COLOR(139,69,19) }, + { "salmon", RGB_COLOR(250,128,114) }, + { "sandybrown", RGB_COLOR(244,164,96) }, + { "seagreen", RGB_COLOR(46,139,87) }, + { "seashell", RGB_COLOR(255,245,238) }, + { "sienna", RGB_COLOR(160,82,45) }, + { "silver", RGB_COLOR(192,192,192) }, + { "skyblue", RGB_COLOR(135,206,235) }, + { "slateblue", RGB_COLOR(106,90,205) }, + { "slategray", RGB_COLOR(112,128,144) }, + { "slategrey", RGB_COLOR(112,128,144) }, + { "snow", RGB_COLOR(255,250,250) }, + { "springgreen", RGB_COLOR(0,255,127) }, + { "steelblue", RGB_COLOR(70,130,180) }, + { "tan", RGB_COLOR(210,180,140) }, + { "teal", RGB_COLOR(0,128,128) }, + { "thistle", RGB_COLOR(216,191,216) }, + { "tomato", RGB_COLOR(255,99,71) }, + { "turquoise", RGB_COLOR(64,224,208) }, + { "violet", RGB_COLOR(238,130,238) }, + { "wheat", RGB_COLOR(245,222,179) }, + { "white", RGB_COLOR(255,255,255) }, + { "whitesmoke", RGB_COLOR(245,245,245) }, + { "yellow", RGB_COLOR(255,255,0) }, + { "yellowgreen", RGB_COLOR(154,205,50) }, + { 0, { 0, 0, 0, 0 } } /* Terminator. */ +}; + +/* Get the color named NAME. If the color was found, returns 1 and + stores the color into *COLOR. If the color was not found, returns 0 and + does not modify *COLOR. */ +int +grub_video_get_named_color (const char *name, + grub_video_rgba_color_t *color) +{ + int i; + for (i = 0; named_colors[i].name; i++) + { + if (grub_strcmp (named_colors[i].name, name) == 0) + { + *color = named_colors[i].color; + return 1; + } + } + return 0; +} + +static int +parse_hex_color_component (const char *s, unsigned start, unsigned end) +{ + unsigned len; + char buf[3]; + + len = end - start; + /* Check the limits so we don't overrun the buffer. */ + if (len < 1 || len > 2) + return 0; + + if (len == 1) + { + buf[0] = s[start]; /* Get the first and only hex digit. */ + buf[1] = buf[0]; /* Duplicate the hex digit. */ + } + else if (len == 2) + { + buf[0] = s[start]; + buf[1] = s[start + 1]; + } + + buf[2] = '\0'; + + return grub_strtoul (buf, 0, 16); +} + +/* Parse a color string of the form "r, g, b", "#RGB", "#RGBA", + "#RRGGBB", or "#RRGGBBAA". */ +grub_err_t +grub_video_parse_color (const char *s, grub_video_rgba_color_t *color) +{ + grub_video_rgba_color_t c; + const char *s0; + + /* Skip whitespace. */ + while (*s && grub_isspace (*s)) + s++; + + s0 = s; + + if (*s == '#') + { + /* HTML-style. Number if hex digits: + [6] #RRGGBB [3] #RGB + [8] #RRGGBBAA [4] #RGBA */ + + s++; /* Skip the '#'. */ + /* Count the hexits to determine the format. */ + int hexits = 0; + const char *end = s; + while (grub_isxdigit (*end)) + { + end++; + hexits++; + } + + /* Parse the color components based on the format. */ + if (hexits == 3 || hexits == 4) + { + c.red = parse_hex_color_component (s, 0, 1); + c.green = parse_hex_color_component (s, 1, 2); + c.blue = parse_hex_color_component (s, 2, 3); + if (hexits == 4) + c.alpha = parse_hex_color_component (s, 3, 4); + else + c.alpha = 255; + } + else if (hexits == 6 || hexits == 8) + { + c.red = parse_hex_color_component (s, 0, 2); + c.green = parse_hex_color_component (s, 2, 4); + c.blue = parse_hex_color_component (s, 4, 6); + if (hexits == 8) + c.alpha = parse_hex_color_component (s, 6, 8); + else + c.alpha = 255; + } + else + return grub_error (GRUB_ERR_BAD_ARGUMENT, + N_("invalid color specification `%s'"), s0); + } + else if (grub_isdigit (*s)) + { + /* Comma separated decimal values. */ + c.red = grub_strtoul (s, 0, 0); + s = grub_strchr (s, ','); + if (!s) + return grub_error (GRUB_ERR_BAD_ARGUMENT, + N_("invalid color specification `%s'"), s0); + s++; + c.green = grub_strtoul (s, 0, 0); + s = grub_strchr (s, ','); + if (!s) + return grub_error (GRUB_ERR_BAD_ARGUMENT, + N_("invalid color specification `%s'"), s0); + s++; + c.blue = grub_strtoul (s, 0, 0); + s = grub_strchr (s, ','); + if (!s) + c.alpha = 255; + else + { + s++; + c.alpha = grub_strtoul (s, 0, 0); + } + } + else + { + if (! grub_video_get_named_color (s, &c)) + return grub_error (GRUB_ERR_BAD_ARGUMENT, + N_("invalid color specification `%s'"), s0); + } + + if (grub_errno == GRUB_ERR_NONE) + *color = c; + return grub_errno; +} |