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Diffstat (limited to 'colour.c')
| -rw-r--r-- | colour.c | 1073 |
1 files changed, 1073 insertions, 0 deletions
diff --git a/colour.c b/colour.c new file mode 100644 index 0000000..a282d18 --- /dev/null +++ b/colour.c @@ -0,0 +1,1073 @@ +/* $OpenBSD$ */ + +/* + * Copyright (c) 2008 Nicholas Marriott <nicholas.marriott@gmail.com> + * Copyright (c) 2016 Avi Halachmi <avihpit@yahoo.com> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER + * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include <sys/types.h> + +#include <ctype.h> +#include <stdlib.h> +#include <string.h> +#include <math.h> + +#include "tmux.h" + +static int +colour_dist_sq(int R, int G, int B, int r, int g, int b) +{ + return ((R - r) * (R - r) + (G - g) * (G - g) + (B - b) * (B - b)); +} + +static int +colour_to_6cube(int v) +{ + if (v < 48) + return (0); + if (v < 114) + return (1); + return ((v - 35) / 40); +} + +/* + * Convert an RGB triplet to the xterm(1) 256 colour palette. + * + * xterm provides a 6x6x6 colour cube (16 - 231) and 24 greys (232 - 255). We + * map our RGB colour to the closest in the cube, also work out the closest + * grey, and use the nearest of the two. + * + * Note that the xterm has much lower resolution for darker colours (they are + * not evenly spread out), so our 6 levels are not evenly spread: 0x0, 0x5f + * (95), 0x87 (135), 0xaf (175), 0xd7 (215) and 0xff (255). Greys are more + * evenly spread (8, 18, 28 ... 238). + */ +int +colour_find_rgb(u_char r, u_char g, u_char b) +{ + static const int q2c[6] = { 0x00, 0x5f, 0x87, 0xaf, 0xd7, 0xff }; + int qr, qg, qb, cr, cg, cb, d, idx; + int grey_avg, grey_idx, grey; + + /* Map RGB to 6x6x6 cube. */ + qr = colour_to_6cube(r); cr = q2c[qr]; + qg = colour_to_6cube(g); cg = q2c[qg]; + qb = colour_to_6cube(b); cb = q2c[qb]; + + /* If we have hit the colour exactly, return early. */ + if (cr == r && cg == g && cb == b) + return ((16 + (36 * qr) + (6 * qg) + qb) | COLOUR_FLAG_256); + + /* Work out the closest grey (average of RGB). */ + grey_avg = (r + g + b) / 3; + if (grey_avg > 238) + grey_idx = 23; + else + grey_idx = (grey_avg - 3) / 10; + grey = 8 + (10 * grey_idx); + + /* Is grey or 6x6x6 colour closest? */ + d = colour_dist_sq(cr, cg, cb, r, g, b); + if (colour_dist_sq(grey, grey, grey, r, g, b) < d) + idx = 232 + grey_idx; + else + idx = 16 + (36 * qr) + (6 * qg) + qb; + return (idx | COLOUR_FLAG_256); +} + +/* Join RGB into a colour. */ +int +colour_join_rgb(u_char r, u_char g, u_char b) +{ + return ((((int)((r) & 0xff)) << 16) | + (((int)((g) & 0xff)) << 8) | + (((int)((b) & 0xff))) | COLOUR_FLAG_RGB); +} + +/* Split colour into RGB. */ +void +colour_split_rgb(int c, u_char *r, u_char *g, u_char *b) +{ + *r = (c >> 16) & 0xff; + *g = (c >> 8) & 0xff; + *b = c & 0xff; +} + +/* Force colour to RGB if not already. */ +int +colour_force_rgb(int c) +{ + if (c & COLOUR_FLAG_RGB) + return (c); + if (c & COLOUR_FLAG_256) + return (colour_256toRGB(c)); + if (c >= 0 && c <= 7) + return (colour_256toRGB(c)); + if (c >= 90 && c <= 97) + return (colour_256toRGB(8 + c - 90)); + return (-1); +} + +/* Convert colour to a string. */ +const char * +colour_tostring(int c) +{ + static char s[32]; + u_char r, g, b; + + if (c == -1) + return ("none"); + + if (c & COLOUR_FLAG_RGB) { + colour_split_rgb(c, &r, &g, &b); + xsnprintf(s, sizeof s, "#%02x%02x%02x", r, g, b); + return (s); + } + + if (c & COLOUR_FLAG_256) { + xsnprintf(s, sizeof s, "colour%u", c & 0xff); + return (s); + } + + switch (c) { + case 0: + return ("black"); + case 1: + return ("red"); + case 2: + return ("green"); + case 3: + return ("yellow"); + case 4: + return ("blue"); + case 5: + return ("magenta"); + case 6: + return ("cyan"); + case 7: + return ("white"); + case 8: + return ("default"); + case 9: + return ("terminal"); + case 90: + return ("brightblack"); + case 91: + return ("brightred"); + case 92: + return ("brightgreen"); + case 93: + return ("brightyellow"); + case 94: + return ("brightblue"); + case 95: + return ("brightmagenta"); + case 96: + return ("brightcyan"); + case 97: + return ("brightwhite"); + } + return ("invalid"); +} + +/* Convert colour from string. */ +int +colour_fromstring(const char *s) +{ + const char *errstr; + const char *cp; + int n; + u_char r, g, b; + + if (*s == '#' && strlen(s) == 7) { + for (cp = s + 1; isxdigit((u_char) *cp); cp++) + ; + if (*cp != '\0') + return (-1); + n = sscanf(s + 1, "%2hhx%2hhx%2hhx", &r, &g, &b); + if (n != 3) + return (-1); + return (colour_join_rgb(r, g, b)); + } + + if (strncasecmp(s, "colour", (sizeof "colour") - 1) == 0) { + n = strtonum(s + (sizeof "colour") - 1, 0, 255, &errstr); + if (errstr != NULL) + return (-1); + return (n | COLOUR_FLAG_256); + } + if (strncasecmp(s, "color", (sizeof "color") - 1) == 0) { + n = strtonum(s + (sizeof "color") - 1, 0, 255, &errstr); + if (errstr != NULL) + return (-1); + return (n | COLOUR_FLAG_256); + } + + if (strcasecmp(s, "default") == 0) + return (8); + if (strcasecmp(s, "terminal") == 0) + return (9); + + if (strcasecmp(s, "black") == 0 || strcmp(s, "0") == 0) + return (0); + if (strcasecmp(s, "red") == 0 || strcmp(s, "1") == 0) + return (1); + if (strcasecmp(s, "green") == 0 || strcmp(s, "2") == 0) + return (2); + if (strcasecmp(s, "yellow") == 0 || strcmp(s, "3") == 0) + return (3); + if (strcasecmp(s, "blue") == 0 || strcmp(s, "4") == 0) + return (4); + if (strcasecmp(s, "magenta") == 0 || strcmp(s, "5") == 0) + return (5); + if (strcasecmp(s, "cyan") == 0 || strcmp(s, "6") == 0) + return (6); + if (strcasecmp(s, "white") == 0 || strcmp(s, "7") == 0) + return (7); + if (strcasecmp(s, "brightblack") == 0 || strcmp(s, "90") == 0) + return (90); + if (strcasecmp(s, "brightred") == 0 || strcmp(s, "91") == 0) + return (91); + if (strcasecmp(s, "brightgreen") == 0 || strcmp(s, "92") == 0) + return (92); + if (strcasecmp(s, "brightyellow") == 0 || strcmp(s, "93") == 0) + return (93); + if (strcasecmp(s, "brightblue") == 0 || strcmp(s, "94") == 0) + return (94); + if (strcasecmp(s, "brightmagenta") == 0 || strcmp(s, "95") == 0) + return (95); + if (strcasecmp(s, "brightcyan") == 0 || strcmp(s, "96") == 0) + return (96); + if (strcasecmp(s, "brightwhite") == 0 || strcmp(s, "97") == 0) + return (97); + return (colour_byname(s)); +} + +/* Convert 256 colour to RGB colour. */ +int +colour_256toRGB(int c) +{ + static const int table[256] = { + 0x000000, 0x800000, 0x008000, 0x808000, + 0x000080, 0x800080, 0x008080, 0xc0c0c0, + 0x808080, 0xff0000, 0x00ff00, 0xffff00, + 0x0000ff, 0xff00ff, 0x00ffff, 0xffffff, + 0x000000, 0x00005f, 0x000087, 0x0000af, + 0x0000d7, 0x0000ff, 0x005f00, 0x005f5f, + 0x005f87, 0x005faf, 0x005fd7, 0x005fff, + 0x008700, 0x00875f, 0x008787, 0x0087af, + 0x0087d7, 0x0087ff, 0x00af00, 0x00af5f, + 0x00af87, 0x00afaf, 0x00afd7, 0x00afff, + 0x00d700, 0x00d75f, 0x00d787, 0x00d7af, + 0x00d7d7, 0x00d7ff, 0x00ff00, 0x00ff5f, + 0x00ff87, 0x00ffaf, 0x00ffd7, 0x00ffff, + 0x5f0000, 0x5f005f, 0x5f0087, 0x5f00af, + 0x5f00d7, 0x5f00ff, 0x5f5f00, 0x5f5f5f, + 0x5f5f87, 0x5f5faf, 0x5f5fd7, 0x5f5fff, + 0x5f8700, 0x5f875f, 0x5f8787, 0x5f87af, + 0x5f87d7, 0x5f87ff, 0x5faf00, 0x5faf5f, + 0x5faf87, 0x5fafaf, 0x5fafd7, 0x5fafff, + 0x5fd700, 0x5fd75f, 0x5fd787, 0x5fd7af, + 0x5fd7d7, 0x5fd7ff, 0x5fff00, 0x5fff5f, + 0x5fff87, 0x5fffaf, 0x5fffd7, 0x5fffff, + 0x870000, 0x87005f, 0x870087, 0x8700af, + 0x8700d7, 0x8700ff, 0x875f00, 0x875f5f, + 0x875f87, 0x875faf, 0x875fd7, 0x875fff, + 0x878700, 0x87875f, 0x878787, 0x8787af, + 0x8787d7, 0x8787ff, 0x87af00, 0x87af5f, + 0x87af87, 0x87afaf, 0x87afd7, 0x87afff, + 0x87d700, 0x87d75f, 0x87d787, 0x87d7af, + 0x87d7d7, 0x87d7ff, 0x87ff00, 0x87ff5f, + 0x87ff87, 0x87ffaf, 0x87ffd7, 0x87ffff, + 0xaf0000, 0xaf005f, 0xaf0087, 0xaf00af, + 0xaf00d7, 0xaf00ff, 0xaf5f00, 0xaf5f5f, + 0xaf5f87, 0xaf5faf, 0xaf5fd7, 0xaf5fff, + 0xaf8700, 0xaf875f, 0xaf8787, 0xaf87af, + 0xaf87d7, 0xaf87ff, 0xafaf00, 0xafaf5f, + 0xafaf87, 0xafafaf, 0xafafd7, 0xafafff, + 0xafd700, 0xafd75f, 0xafd787, 0xafd7af, + 0xafd7d7, 0xafd7ff, 0xafff00, 0xafff5f, + 0xafff87, 0xafffaf, 0xafffd7, 0xafffff, + 0xd70000, 0xd7005f, 0xd70087, 0xd700af, + 0xd700d7, 0xd700ff, 0xd75f00, 0xd75f5f, + 0xd75f87, 0xd75faf, 0xd75fd7, 0xd75fff, + 0xd78700, 0xd7875f, 0xd78787, 0xd787af, + 0xd787d7, 0xd787ff, 0xd7af00, 0xd7af5f, + 0xd7af87, 0xd7afaf, 0xd7afd7, 0xd7afff, + 0xd7d700, 0xd7d75f, 0xd7d787, 0xd7d7af, + 0xd7d7d7, 0xd7d7ff, 0xd7ff00, 0xd7ff5f, + 0xd7ff87, 0xd7ffaf, 0xd7ffd7, 0xd7ffff, + 0xff0000, 0xff005f, 0xff0087, 0xff00af, + 0xff00d7, 0xff00ff, 0xff5f00, 0xff5f5f, + 0xff5f87, 0xff5faf, 0xff5fd7, 0xff5fff, + 0xff8700, 0xff875f, 0xff8787, 0xff87af, + 0xff87d7, 0xff87ff, 0xffaf00, 0xffaf5f, + 0xffaf87, 0xffafaf, 0xffafd7, 0xffafff, + 0xffd700, 0xffd75f, 0xffd787, 0xffd7af, + 0xffd7d7, 0xffd7ff, 0xffff00, 0xffff5f, + 0xffff87, 0xffffaf, 0xffffd7, 0xffffff, + 0x080808, 0x121212, 0x1c1c1c, 0x262626, + 0x303030, 0x3a3a3a, 0x444444, 0x4e4e4e, + 0x585858, 0x626262, 0x6c6c6c, 0x767676, + 0x808080, 0x8a8a8a, 0x949494, 0x9e9e9e, + 0xa8a8a8, 0xb2b2b2, 0xbcbcbc, 0xc6c6c6, + 0xd0d0d0, 0xdadada, 0xe4e4e4, 0xeeeeee + }; + + return (table[c & 0xff] | COLOUR_FLAG_RGB); +} + +/* Convert 256 colour to 16 colour. */ +int +colour_256to16(int c) +{ + static const char table[256] = { + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, + 0, 4, 4, 4, 12, 12, 2, 6, 4, 4, 12, 12, 2, 2, 6, 4, + 12, 12, 2, 2, 2, 6, 12, 12, 10, 10, 10, 10, 14, 12, 10, 10, + 10, 10, 10, 14, 1, 5, 4, 4, 12, 12, 3, 8, 4, 4, 12, 12, + 2, 2, 6, 4, 12, 12, 2, 2, 2, 6, 12, 12, 10, 10, 10, 10, + 14, 12, 10, 10, 10, 10, 10, 14, 1, 1, 5, 4, 12, 12, 1, 1, + 5, 4, 12, 12, 3, 3, 8, 4, 12, 12, 2, 2, 2, 6, 12, 12, + 10, 10, 10, 10, 14, 12, 10, 10, 10, 10, 10, 14, 1, 1, 1, 5, + 12, 12, 1, 1, 1, 5, 12, 12, 1, 1, 1, 5, 12, 12, 3, 3, + 3, 7, 12, 12, 10, 10, 10, 10, 14, 12, 10, 10, 10, 10, 10, 14, + 9, 9, 9, 9, 13, 12, 9, 9, 9, 9, 13, 12, 9, 9, 9, 9, + 13, 12, 9, 9, 9, 9, 13, 12, 11, 11, 11, 11, 7, 12, 10, 10, + 10, 10, 10, 14, 9, 9, 9, 9, 9, 13, 9, 9, 9, 9, 9, 13, + 9, 9, 9, 9, 9, 13, 9, 9, 9, 9, 9, 13, 9, 9, 9, 9, + 9, 13, 11, 11, 11, 11, 11, 15, 0, 0, 0, 0, 0, 0, 8, 8, + 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 15, 15, 15, 15, 15, 15 + }; + + return (table[c & 0xff]); +} + +/* Get colour by X11 colour name. */ +int +colour_byname(const char *name) +{ + static const struct { + const char *name; + int c; + } colours[] = { + { "AliceBlue", 0xf0f8ff }, + { "AntiqueWhite", 0xfaebd7 }, + { "AntiqueWhite1", 0xffefdb }, + { "AntiqueWhite2", 0xeedfcc }, + { "AntiqueWhite3", 0xcdc0b0 }, + { "AntiqueWhite4", 0x8b8378 }, + { "BlanchedAlmond", 0xffebcd }, + { "BlueViolet", 0x8a2be2 }, + { "CadetBlue", 0x5f9ea0 }, + { "CadetBlue1", 0x98f5ff }, + { "CadetBlue2", 0x8ee5ee }, + { "CadetBlue3", 0x7ac5cd }, + { "CadetBlue4", 0x53868b }, + { "CornflowerBlue", 0x6495ed }, + { "DarkBlue", 0x00008b }, + { "DarkCyan", 0x008b8b }, + { "DarkGoldenrod", 0xb8860b }, + { "DarkGoldenrod1", 0xffb90f }, + { "DarkGoldenrod2", 0xeead0e }, + { "DarkGoldenrod3", 0xcd950c }, + { "DarkGoldenrod4", 0x8b6508 }, + { "DarkGray", 0xa9a9a9 }, + { "DarkGreen", 0x006400 }, + { "DarkGrey", 0xa9a9a9 }, + { "DarkKhaki", 0xbdb76b }, + { "DarkMagenta", 0x8b008b }, + { "DarkOliveGreen", 0x556b2f }, + { "DarkOliveGreen1", 0xcaff70 }, + { "DarkOliveGreen2", 0xbcee68 }, + { "DarkOliveGreen3", 0xa2cd5a }, + { "DarkOliveGreen4", 0x6e8b3d }, + { "DarkOrange", 0xff8c00 }, + { "DarkOrange1", 0xff7f00 }, + { "DarkOrange2", 0xee7600 }, + { "DarkOrange3", 0xcd6600 }, + { "DarkOrange4", 0x8b4500 }, + { "DarkOrchid", 0x9932cc }, + { "DarkOrchid1", 0xbf3eff }, + { "DarkOrchid2", 0xb23aee }, + { "DarkOrchid3", 0x9a32cd }, + { "DarkOrchid4", 0x68228b }, + { "DarkRed", 0x8b0000 }, + { "DarkSalmon", 0xe9967a }, + { "DarkSeaGreen", 0x8fbc8f }, + { "DarkSeaGreen1", 0xc1ffc1 }, + { "DarkSeaGreen2", 0xb4eeb4 }, + { "DarkSeaGreen3", 0x9bcd9b }, + { "DarkSeaGreen4", 0x698b69 }, + { "DarkSlateBlue", 0x483d8b }, + { "DarkSlateGray", 0x2f4f4f }, + { "DarkSlateGray1", 0x97ffff }, + { "DarkSlateGray2", 0x8deeee }, + { "DarkSlateGray3", 0x79cdcd }, + { "DarkSlateGray4", 0x528b8b }, + { "DarkSlateGrey", 0x2f4f4f }, + { "DarkTurquoise", 0x00ced1 }, + { "DarkViolet", 0x9400d3 }, + { "DeepPink", 0xff1493 }, + { "DeepPink1", 0xff1493 }, + { "DeepPink2", 0xee1289 }, + { "DeepPink3", 0xcd1076 }, + { "DeepPink4", 0x8b0a50 }, + { "DeepSkyBlue", 0x00bfff }, + { "DeepSkyBlue1", 0x00bfff }, + { "DeepSkyBlue2", 0x00b2ee }, + { "DeepSkyBlue3", 0x009acd }, + { "DeepSkyBlue4", 0x00688b }, + { "DimGray", 0x696969 }, + { "DimGrey", 0x696969 }, + { "DodgerBlue", 0x1e90ff }, + { "DodgerBlue1", 0x1e90ff }, + { "DodgerBlue2", 0x1c86ee }, + { "DodgerBlue3", 0x1874cd }, + { "DodgerBlue4", 0x104e8b }, + { "FloralWhite", 0xfffaf0 }, + { "ForestGreen", 0x228b22 }, + { "GhostWhite", 0xf8f8ff }, + { "GreenYellow", 0xadff2f }, + { "HotPink", 0xff69b4 }, + { "HotPink1", 0xff6eb4 }, + { "HotPink2", 0xee6aa7 }, + { "HotPink3", 0xcd6090 }, + { "HotPink4", 0x8b3a62 }, + { "IndianRed", 0xcd5c5c }, + { "IndianRed1", 0xff6a6a }, + { "IndianRed2", 0xee6363 }, + { "IndianRed3", 0xcd5555 }, + { "IndianRed4", 0x8b3a3a }, + { "LavenderBlush", 0xfff0f5 }, + { "LavenderBlush1", 0xfff0f5 }, + { "LavenderBlush2", 0xeee0e5 }, + { "LavenderBlush3", 0xcdc1c5 }, + { "LavenderBlush4", 0x8b8386 }, + { "LawnGreen", 0x7cfc00 }, + { "LemonChiffon", 0xfffacd }, + { "LemonChiffon1", 0xfffacd }, + { "LemonChiffon2", 0xeee9bf }, + { "LemonChiffon3", 0xcdc9a5 }, + { "LemonChiffon4", 0x8b8970 }, + { "LightBlue", 0xadd8e6 }, + { "LightBlue1", 0xbfefff }, + { "LightBlue2", 0xb2dfee }, + { "LightBlue3", 0x9ac0cd }, + { "LightBlue4", 0x68838b }, + { "LightCoral", 0xf08080 }, + { "LightCyan", 0xe0ffff }, + { "LightCyan1", 0xe0ffff }, + { "LightCyan2", 0xd1eeee }, + { "LightCyan3", 0xb4cdcd }, + { "LightCyan4", 0x7a8b8b }, + { "LightGoldenrod", 0xeedd82 }, + { "LightGoldenrod1", 0xffec8b }, + { "LightGoldenrod2", 0xeedc82 }, + { "LightGoldenrod3", 0xcdbe70 }, + { "LightGoldenrod4", 0x8b814c }, + { "LightGoldenrodYellow", 0xfafad2 }, + { "LightGray", 0xd3d3d3 }, + { "LightGreen", 0x90ee90 }, + { "LightGrey", 0xd3d3d3 }, + { "LightPink", 0xffb6c1 }, + { "LightPink1", 0xffaeb9 }, + { "LightPink2", 0xeea2ad }, + { "LightPink3", 0xcd8c95 }, + { "LightPink4", 0x8b5f65 }, + { "LightSalmon", 0xffa07a }, + { "LightSalmon1", 0xffa07a }, + { "LightSalmon2", 0xee9572 }, + { "LightSalmon3", 0xcd8162 }, + { "LightSalmon4", 0x8b5742 }, + { "LightSeaGreen", 0x20b2aa }, + { "LightSkyBlue", 0x87cefa }, + { "LightSkyBlue1", 0xb0e2ff }, + { "LightSkyBlue2", 0xa4d3ee }, + { "LightSkyBlue3", 0x8db6cd }, + { "LightSkyBlue4", 0x607b8b }, + { "LightSlateBlue", 0x8470ff }, + { "LightSlateGray", 0x778899 }, + { "LightSlateGrey", 0x778899 }, + { "LightSteelBlue", 0xb0c4de }, + { "LightSteelBlue1", 0xcae1ff }, + { "LightSteelBlue2", 0xbcd2ee }, + { "LightSteelBlue3", 0xa2b5cd }, + { "LightSteelBlue4", 0x6e7b8b }, + { "LightYellow", 0xffffe0 }, + { "LightYellow1", 0xffffe0 }, + { "LightYellow2", 0xeeeed1 }, + { "LightYellow3", 0xcdcdb4 }, + { "LightYellow4", 0x8b8b7a }, + { "LimeGreen", 0x32cd32 }, + { "MediumAquamarine", 0x66cdaa }, + { "MediumBlue", 0x0000cd }, + { "MediumOrchid", 0xba55d3 }, + { "MediumOrchid1", 0xe066ff }, + { "MediumOrchid2", 0xd15fee }, + { "MediumOrchid3", 0xb452cd }, + { "MediumOrchid4", 0x7a378b }, + { "MediumPurple", 0x9370db }, + { "MediumPurple1", 0xab82ff }, + { "MediumPurple2", 0x9f79ee }, + { "MediumPurple3", 0x8968cd }, + { "MediumPurple4", 0x5d478b }, + { "MediumSeaGreen", 0x3cb371 }, + { "MediumSlateBlue", 0x7b68ee }, + { "MediumSpringGreen", 0x00fa9a }, + { "MediumTurquoise", 0x48d1cc }, + { "MediumVioletRed", 0xc71585 }, + { "MidnightBlue", 0x191970 }, + { "MintCream", 0xf5fffa }, + { "MistyRose", 0xffe4e1 }, + { "MistyRose1", 0xffe4e1 }, + { "MistyRose2", 0xeed5d2 }, + { "MistyRose3", 0xcdb7b5 }, + { "MistyRose4", 0x8b7d7b }, + { "NavajoWhite", 0xffdead }, + { "NavajoWhite1", 0xffdead }, + { "NavajoWhite2", 0xeecfa1 }, + { "NavajoWhite3", 0xcdb38b }, + { "NavajoWhite4", 0x8b795e }, + { "NavyBlue", 0x000080 }, + { "OldLace", 0xfdf5e6 }, + { "OliveDrab", 0x6b8e23 }, + { "OliveDrab1", 0xc0ff3e }, + { "OliveDrab2", 0xb3ee3a }, + { "OliveDrab3", 0x9acd32 }, + { "OliveDrab4", 0x698b22 }, + { "OrangeRed", 0xff4500 }, + { "OrangeRed1", 0xff4500 }, + { "OrangeRed2", 0xee4000 }, + { "OrangeRed3", 0xcd3700 }, + { "OrangeRed4", 0x8b2500 }, + { "PaleGoldenrod", 0xeee8aa }, + { "PaleGreen", 0x98fb98 }, + { "PaleGreen1", 0x9aff9a }, + { "PaleGreen2", 0x90ee90 }, + { "PaleGreen3", 0x7ccd7c }, + { "PaleGreen4", 0x548b54 }, + { "PaleTurquoise", 0xafeeee }, + { "PaleTurquoise1", 0xbbffff }, + { "PaleTurquoise2", 0xaeeeee }, + { "PaleTurquoise3", 0x96cdcd }, + { "PaleTurquoise4", 0x668b8b }, + { "PaleVioletRed", 0xdb7093 }, + { "PaleVioletRed1", 0xff82ab }, + { "PaleVioletRed2", 0xee799f }, + { "PaleVioletRed3", 0xcd6889 }, + { "PaleVioletRed4", 0x8b475d }, + { "PapayaWhip", 0xffefd5 }, + { "PeachPuff", 0xffdab9 }, + { "PeachPuff1", 0xffdab9 }, + { "PeachPuff2", 0xeecbad }, + { "PeachPuff3", 0xcdaf95 }, + { "PeachPuff4", 0x8b7765 }, + { "PowderBlue", 0xb0e0e6 }, + { "RebeccaPurple", 0x663399 }, + { "RosyBrown", 0xbc8f8f }, + { "RosyBrown1", 0xffc1c1 }, + { "RosyBrown2", 0xeeb4b4 }, + { "RosyBrown3", 0xcd9b9b }, + { "RosyBrown4", 0x8b6969 }, + { "RoyalBlue", 0x4169e1 }, + { "RoyalBlue1", 0x4876ff }, + { "RoyalBlue2", 0x436eee }, + { "RoyalBlue3", 0x3a5fcd }, + { "RoyalBlue4", 0x27408b }, + { "SaddleBrown", 0x8b4513 }, + { "SandyBrown", 0xf4a460 }, + { "SeaGreen", 0x2e8b57 }, + { "SeaGreen1", 0x54ff9f }, + { "SeaGreen2", 0x4eee94 }, + { "SeaGreen3", 0x43cd80 }, + { "SeaGreen4", 0x2e8b57 }, + { "SkyBlue", 0x87ceeb }, + { "SkyBlue1", 0x87ceff }, + { "SkyBlue2", 0x7ec0ee }, + { "SkyBlue3", 0x6ca6cd }, + { "SkyBlue4", 0x4a708b }, + { "SlateBlue", 0x6a5acd }, + { "SlateBlue1", 0x836fff }, + { "SlateBlue2", 0x7a67ee }, + { "SlateBlue3", 0x6959cd }, + { "SlateBlue4", 0x473c8b }, + { "SlateGray", 0x708090 }, + { "SlateGray1", 0xc6e2ff }, + { "SlateGray2", 0xb9d3ee }, + { "SlateGray3", 0x9fb6cd }, + { "SlateGray4", 0x6c7b8b }, + { "SlateGrey", 0x708090 }, + { "SpringGreen", 0x00ff7f }, + { "SpringGreen1", 0x00ff7f }, + { "SpringGreen2", 0x00ee76 }, + { "SpringGreen3", 0x00cd66 }, + { "SpringGreen4", 0x008b45 }, + { "SteelBlue", 0x4682b4 }, + { "SteelBlue1", 0x63b8ff }, + { "SteelBlue2", 0x5cacee }, + { "SteelBlue3", 0x4f94cd }, + { "SteelBlue4", 0x36648b }, + { "VioletRed", 0xd02090 }, + { "VioletRed1", 0xff3e96 }, + { "VioletRed2", 0xee3a8c }, + { "VioletRed3", 0xcd3278 }, + { "VioletRed4", 0x8b2252 }, + { "WebGray", 0x808080 }, + { "WebGreen", 0x008000 }, + { "WebGrey", 0x808080 }, + { "WebMaroon", 0x800000 }, + { "WebPurple", 0x800080 }, + { "WhiteSmoke", 0xf5f5f5 }, + { "X11Gray", 0xbebebe }, + { "X11Green", 0x00ff00 }, + { "X11Grey", 0xbebebe }, + { "X11Maroon", 0xb03060 }, + { "X11Purple", 0xa020f0 }, + { "YellowGreen", 0x9acd32 }, + { "alice blue", 0xf0f8ff }, + { "antique white", 0xfaebd7 }, + { "aqua", 0x00ffff }, + { "aquamarine", 0x7fffd4 }, + { "aquamarine1", 0x7fffd4 }, + { "aquamarine2", 0x76eec6 }, + { "aquamarine3", 0x66cdaa }, + { "aquamarine4", 0x458b74 }, + { "azure", 0xf0ffff }, + { "azure1", 0xf0ffff }, + { "azure2", 0xe0eeee }, + { "azure3", 0xc1cdcd }, + { "azure4", 0x838b8b }, + { "beige", 0xf5f5dc }, + { "bisque", 0xffe4c4 }, + { "bisque1", 0xffe4c4 }, + { "bisque2", 0xeed5b7 }, + { "bisque3", 0xcdb79e }, + { "bisque4", 0x8b7d6b }, + { "black", 0x000000 }, + { "blanched almond", 0xffebcd }, + { "blue violet", 0x8a2be2 }, + { "blue", 0x0000ff }, + { "blue1", 0x0000ff }, + { "blue2", 0x0000ee }, + { "blue3", 0x0000cd }, + { "blue4", 0x00008b }, + { "brown", 0xa52a2a }, + { "brown1", 0xff4040 }, + { "brown2", 0xee3b3b }, + { "brown3", 0xcd3333 }, + { "brown4", 0x8b2323 }, + { "burlywood", 0xdeb887 }, + { "burlywood1", 0xffd39b }, + { "burlywood2", 0xeec591 }, + { "burlywood3", 0xcdaa7d }, + { "burlywood4", 0x8b7355 }, + { "cadet blue", 0x5f9ea0 }, + { "chartreuse", 0x7fff00 }, + { "chartreuse1", 0x7fff00 }, + { "chartreuse2", 0x76ee00 }, + { "chartreuse3", 0x66cd00 }, + { "chartreuse4", 0x458b00 }, + { "chocolate", 0xd2691e }, + { "chocolate1", 0xff7f24 }, + { "chocolate2", 0xee7621 }, + { "chocolate3", 0xcd661d }, + { "chocolate4", 0x8b4513 }, + { "coral", 0xff7f50 }, + { "coral1", 0xff7256 }, + { "coral2", 0xee6a50 }, + { "coral3", 0xcd5b45 }, + { "coral4", 0x8b3e2f }, + { "cornflower blue", 0x6495ed }, + { "cornsilk", 0xfff8dc }, + { "cornsilk1", 0xfff8dc }, + { "cornsilk2", 0xeee8cd }, + { "cornsilk3", 0xcdc8b1 }, + { "cornsilk4", 0x8b8878 }, + { "crimson", 0xdc143c }, + { "cyan", 0x00ffff }, + { "cyan1", 0x00ffff }, + { "cyan2", 0x00eeee }, + { "cyan3", 0x00cdcd }, + { "cyan4", 0x008b8b }, + { "dark blue", 0x00008b }, + { "dark cyan", 0x008b8b }, + { "dark goldenrod", 0xb8860b }, + { "dark gray", 0xa9a9a9 }, + { "dark green", 0x006400 }, + { "dark grey", 0xa9a9a9 }, + { "dark khaki", 0xbdb76b }, + { "dark magenta", 0x8b008b }, + { "dark olive green", 0x556b2f }, + { "dark orange", 0xff8c00 }, + { "dark orchid", 0x9932cc }, + { "dark red", 0x8b0000 }, + { "dark salmon", 0xe9967a }, + { "dark sea green", 0x8fbc8f }, + { "dark slate blue", 0x483d8b }, + { "dark slate gray", 0x2f4f4f }, + { "dark slate grey", 0x2f4f4f }, + { "dark turquoise", 0x00ced1 }, + { "dark violet", 0x9400d3 }, + { "deep pink", 0xff1493 }, + { "deep sky blue", 0x00bfff }, + { "dim gray", 0x696969 }, + { "dim grey", 0x696969 }, + { "dodger blue", 0x1e90ff }, + { "firebrick", 0xb22222 }, + { "firebrick1", 0xff3030 }, + { "firebrick2", 0xee2c2c }, + { "firebrick3", 0xcd2626 }, + { "firebrick4", 0x8b1a1a }, + { "floral white", 0xfffaf0 }, + { "forest green", 0x228b22 }, + { "fuchsia", 0xff00ff }, + { "gainsboro", 0xdcdcdc }, + { "ghost white", 0xf8f8ff }, + { "gold", 0xffd700 }, + { "gold1", 0xffd700 }, + { "gold2", 0xeec900 }, + { "gold3", 0xcdad00 }, + { "gold4", 0x8b7500 }, + { "goldenrod", 0xdaa520 }, + { "goldenrod1", 0xffc125 }, + { "goldenrod2", 0xeeb422 }, + { "goldenrod3", 0xcd9b1d }, + { "goldenrod4", 0x8b6914 }, + { "green yellow", 0xadff2f }, + { "green", 0x00ff00 }, + { "green1", 0x00ff00 }, + { "green2", 0x00ee00 }, + { "green3", 0x00cd00 }, + { "green4", 0x008b00 }, + { "honeydew", 0xf0fff0 }, + { "honeydew1", 0xf0fff0 }, + { "honeydew2", 0xe0eee0 }, + { "honeydew3", 0xc1cdc1 }, + { "honeydew4", 0x838b83 }, + { "hot pink", 0xff69b4 }, + { "indian red", 0xcd5c5c }, + { "indigo", 0x4b0082 }, + { "ivory", 0xfffff0 }, + { "ivory1", 0xfffff0 }, + { "ivory2", 0xeeeee0 }, + { "ivory3", 0xcdcdc1 }, + { "ivory4", 0x8b8b83 }, + { "khaki", 0xf0e68c }, + { "khaki1", 0xfff68f }, + { "khaki2", 0xeee685 }, + { "khaki3", 0xcdc673 }, + { "khaki4", 0x8b864e }, + { "lavender blush", 0xfff0f5 }, + { "lavender", 0xe6e6fa }, + { "lawn green", 0x7cfc00 }, + { "lemon chiffon", 0xfffacd }, + { "light blue", 0xadd8e6 }, + { "light coral", 0xf08080 }, + { "light cyan", 0xe0ffff }, + { "light goldenrod yellow", 0xfafad2 }, + { "light goldenrod", 0xeedd82 }, + { "light gray", 0xd3d3d3 }, + { "light green", 0x90ee90 }, + { "light grey", 0xd3d3d3 }, + { "light pink", 0xffb6c1 }, + { "light salmon", 0xffa07a }, + { "light sea green", 0x20b2aa }, + { "light sky blue", 0x87cefa }, + { "light slate blue", 0x8470ff }, + { "light slate gray", 0x778899 }, + { "light slate grey", 0x778899 }, + { "light steel blue", 0xb0c4de }, + { "light yellow", 0xffffe0 }, + { "lime green", 0x32cd32 }, + { "lime", 0x00ff00 }, + { "linen", 0xfaf0e6 }, + { "magenta", 0xff00ff }, + { "magenta1", 0xff00ff }, + { "magenta2", 0xee00ee }, + { "magenta3", 0xcd00cd }, + { "magenta4", 0x8b008b }, + { "maroon", 0xb03060 }, + { "maroon1", 0xff34b3 }, + { "maroon2", 0xee30a7 }, + { "maroon3", 0xcd2990 }, + { "maroon4", 0x8b1c62 }, + { "medium aquamarine", 0x66cdaa }, + { "medium blue", 0x0000cd }, + { "medium orchid", 0xba55d3 }, + { "medium purple", 0x9370db }, + { "medium sea green", 0x3cb371 }, + { "medium slate blue", 0x7b68ee }, + { "medium spring green", 0x00fa9a }, + { "medium turquoise", 0x48d1cc }, + { "medium violet red", 0xc71585 }, + { "midnight blue", 0x191970 }, + { "mint cream", 0xf5fffa }, + { "misty rose", 0xffe4e1 }, + { "moccasin", 0xffe4b5 }, + { "navajo white", 0xffdead }, + { "navy blue", 0x000080 }, + { "navy", 0x000080 }, + { "old lace", 0xfdf5e6 }, + { "olive drab", 0x6b8e23 }, + { "olive", 0x808000 }, + { "orange red", 0xff4500 }, + { "orange", 0xffa500 }, + { "orange1", 0xffa500 }, + { "orange2", 0xee9a00 }, + { "orange3", 0xcd8500 }, + { "orange4", 0x8b5a00 }, + { "orchid", 0xda70d6 }, + { "orchid1", 0xff83fa }, + { "orchid2", 0xee7ae9 }, + { "orchid3", 0xcd69c9 }, + { "orchid4", 0x8b4789 }, + { "pale goldenrod", 0xeee8aa }, + { "pale green", 0x98fb98 }, + { "pale turquoise", 0xafeeee }, + { "pale violet red", 0xdb7093 }, + { "papaya whip", 0xffefd5 }, + { "peach puff", 0xffdab9 }, + { "peru", 0xcd853f }, + { "pink", 0xffc0cb }, + { "pink1", 0xffb5c5 }, + { "pink2", 0xeea9b8 }, + { "pink3", 0xcd919e }, + { "pink4", 0x8b636c }, + { "plum", 0xdda0dd }, + { "plum1", 0xffbbff }, + { "plum2", 0xeeaeee }, + { "plum3", 0xcd96cd }, + { "plum4", 0x8b668b }, + { "powder blue", 0xb0e0e6 }, + { "purple", 0xa020f0 }, + { "purple1", 0x9b30ff }, + { "purple2", 0x912cee }, + { "purple3", 0x7d26cd }, + { "purple4", 0x551a8b }, + { "rebecca purple", 0x663399 }, + { "red", 0xff0000 }, + { "red1", 0xff0000 }, + { "red2", 0xee0000 }, + { "red3", 0xcd0000 }, + { "red4", 0x8b0000 }, + { "rosy brown", 0xbc8f8f }, + { "royal blue", 0x4169e1 }, + { "saddle brown", 0x8b4513 }, + { "salmon", 0xfa8072 }, + { "salmon1", 0xff8c69 }, + { "salmon2", 0xee8262 }, + { "salmon3", 0xcd7054 }, + { "salmon4", 0x8b4c39 }, + { "sandy brown", 0xf4a460 }, + { "sea green", 0x2e8b57 }, + { "seashell", 0xfff5ee }, + { "seashell1", 0xfff5ee }, + { "seashell2", 0xeee5de }, + { "seashell3", 0xcdc5bf }, + { "seashell4", 0x8b8682 }, + { "sienna", 0xa0522d }, + { "sienna1", 0xff8247 }, + { "sienna2", 0xee7942 }, + { "sienna3", 0xcd6839 }, + { "sienna4", 0x8b4726 }, + { "silver", 0xc0c0c0 }, + { "sky blue", 0x87ceeb }, + { "slate blue", 0x6a5acd }, + { "slate gray", 0x708090 }, + { "slate grey", 0x708090 }, + { "snow", 0xfffafa }, + { "snow1", 0xfffafa }, + { "snow2", 0xeee9e9 }, + { "snow3", 0xcdc9c9 }, + { "snow4", 0x8b8989 }, + { "spring green", 0x00ff7f }, + { "steel blue", 0x4682b4 }, + { "tan", 0xd2b48c }, + { "tan1", 0xffa54f }, + { "tan2", 0xee9a49 }, + { "tan3", 0xcd853f }, + { "tan4", 0x8b5a2b }, + { "teal", 0x008080 }, + { "thistle", 0xd8bfd8 }, + { "thistle1", 0xffe1ff }, + { "thistle2", 0xeed2ee }, + { "thistle3", 0xcdb5cd }, + { "thistle4", 0x8b7b8b }, + { "tomato", 0xff6347 }, + { "tomato1", 0xff6347 }, + { "tomato2", 0xee5c42 }, + { "tomato3", 0xcd4f39 }, + { "tomato4", 0x8b3626 }, + { "turquoise", 0x40e0d0 }, + { "turquoise1", 0x00f5ff }, + { "turquoise2", 0x00e5ee }, + { "turquoise3", 0x00c5cd }, + { "turquoise4", 0x00868b }, + { "violet red", 0xd02090 }, + { "violet", 0xee82ee }, + { "web gray", 0x808080 }, + { "web green", 0x008000 }, + { "web grey", 0x808080 }, + { "web maroon", 0x800000 }, + { "web purple", 0x800080 }, + { "wheat", 0xf5deb3 }, + { "wheat1", 0xffe7ba }, + { "wheat2", 0xeed8ae }, + { "wheat3", 0xcdba96 }, + { "wheat4", 0x8b7e66 }, + { "white smoke", 0xf5f5f5 }, + { "white", 0xffffff }, + { "x11 gray", 0xbebebe }, + { "x11 green", 0x00ff00 }, + { "x11 grey", 0xbebebe }, + { "x11 maroon", 0xb03060 }, + { "x11 purple", 0xa020f0 }, + { "yellow green", 0x9acd32 }, + { "yellow", 0xffff00 }, + { "yellow1", 0xffff00 }, + { "yellow2", 0xeeee00 }, + { "yellow3", 0xcdcd00 }, + { "yellow4", 0x8b8b00 } + }; + u_int i; + int c; + + if (strncmp(name, "grey", 4) == 0 || strncmp(name, "gray", 4) == 0) { + if (!isdigit((u_char)name[4])) + return (0xbebebe|COLOUR_FLAG_RGB); + c = round(2.55 * atoi(name + 4)); + if (c < 0 || c > 255) + return (-1); + return (colour_join_rgb(c, c, c)); + } + for (i = 0; i < nitems(colours); i++) { + if (strcasecmp(colours[i].name, name) == 0) + return (colours[i].c|COLOUR_FLAG_RGB); + } + return (-1); +} + +/* Initialize palette. */ +void +colour_palette_init(struct colour_palette *p) +{ + p->fg = 8; + p->bg = 8; + p->palette = NULL; + p->default_palette = NULL; +} + +/* Clear palette. */ +void +colour_palette_clear(struct colour_palette *p) +{ + if (p != NULL) { + p->fg = 8; + p->bg = 8; + free(p->palette); + p->palette = NULL; + } +} + +/* Free a palette. */ +void +colour_palette_free(struct colour_palette *p) +{ + if (p != NULL) { + free(p->palette); + p->palette = NULL; + free(p->default_palette); + p->default_palette = NULL; + } +} + +/* Get a colour from a palette. */ +int +colour_palette_get(struct colour_palette *p, int c) +{ + if (p == NULL) + return (-1); + + if (c >= 90 && c <= 97) + c = 8 + c - 90; + else if (c & COLOUR_FLAG_256) + c &= ~COLOUR_FLAG_256; + else if (c >= 8) + return (-1); + + if (p->palette != NULL && p->palette[c] != -1) + return (p->palette[c]); + if (p->default_palette != NULL && p->default_palette[c] != -1) + return (p->default_palette[c]); + return (-1); +} + +/* Set a colour in a palette. */ +int +colour_palette_set(struct colour_palette *p, int n, int c) +{ + u_int i; + + if (p == NULL || n > 255) + return (0); + + if (c == -1 && p->palette == NULL) + return (0); + + if (c != -1 && p->palette == NULL) { + if (p->palette == NULL) + p->palette = xcalloc(256, sizeof *p->palette); + for (i = 0; i < 256; i++) + p->palette[i] = -1; + } + p->palette[n] = c; + return (1); +} + +/* Build palette defaults from an option. */ +void +colour_palette_from_option(struct colour_palette *p, struct options *oo) +{ + struct options_entry *o; + struct options_array_item *a; + u_int i, n; + int c; + + if (p == NULL) + return; + + o = options_get(oo, "pane-colours"); + if ((a = options_array_first(o)) == NULL) { + if (p->default_palette != NULL) { + free(p->default_palette); + p->default_palette = NULL; + } + return; + } + if (p->default_palette == NULL) + p->default_palette = xcalloc(256, sizeof *p->default_palette); + for (i = 0; i < 256; i++) + p->default_palette[i] = -1; + while (a != NULL) { + n = options_array_item_index(a); + if (n < 256) { + c = options_array_item_value(a)->number; + p->default_palette[n] = c; + } + a = options_array_next(a); + } + +} |