diff options
| -rw-r--r-- | src/gui/gui-color.c | 111 | ||||
| -rw-r--r-- | src/gui/gui-color.h | 2 |
2 files changed, 113 insertions, 0 deletions
diff --git a/src/gui/gui-color.c b/src/gui/gui-color.c index 13b4ea8ff..59bf114c1 100644 --- a/src/gui/gui-color.c +++ b/src/gui/gui-color.c @@ -31,6 +31,7 @@ #include <signal.h> #include <time.h> #include <ctype.h> +#include <limits.h> #include "../core/weechat.h" #include "../core/wee-config.h" @@ -51,6 +52,54 @@ struct t_hashtable *gui_color_hash_palette_color = NULL; struct t_hashtable *gui_color_hash_palette_alias = NULL; struct t_weelist *gui_color_list_with_alias = NULL; +/* terminal colors */ +int gui_color_term256[256] = +{ + 0x000000, 0x800000, 0x008000, 0x808000, 0x000080, 0x800080, /* 0-5 */ + 0x008080, 0xc0c0c0, 0x808080, 0xff0000, 0x00ff00, 0xffff00, /* 6-11 */ + 0x0000ff, 0xff00ff, 0x00ffff, 0xffffff, 0x000000, 0x00005f, /* 12-17 */ + 0x000087, 0x0000af, 0x0000d7, 0x0000ff, 0x005f00, 0x005f5f, /* 18-23 */ + 0x005f87, 0x005faf, 0x005fd7, 0x005fff, 0x008700, 0x00875f, /* 24-29 */ + 0x008787, 0x0087af, 0x0087d7, 0x0087ff, 0x00af00, 0x00af5f, /* 30-35 */ + 0x00af87, 0x00afaf, 0x00afd7, 0x00afff, 0x00d700, 0x00d75f, /* 36-41 */ + 0x00d787, 0x00d7af, 0x00d7d7, 0x00d7ff, 0x00ff00, 0x00ff5f, /* 42-47 */ + 0x00ff87, 0x00ffaf, 0x00ffd7, 0x00ffff, 0x5f0000, 0x5f005f, /* 48-53 */ + 0x5f0087, 0x5f00af, 0x5f00d7, 0x5f00ff, 0x5f5f00, 0x5f5f5f, /* 54-59 */ + 0x5f5f87, 0x5f5faf, 0x5f5fd7, 0x5f5fff, 0x5f8700, 0x5f875f, /* 60-65 */ + 0x5f8787, 0x5f87af, 0x5f87d7, 0x5f87ff, 0x5faf00, 0x5faf5f, /* 66-71 */ + 0x5faf87, 0x5fafaf, 0x5fafd7, 0x5fafff, 0x5fd700, 0x5fd75f, /* 72-77 */ + 0x5fd787, 0x5fd7af, 0x5fd7d7, 0x5fd7ff, 0x5fff00, 0x5fff5f, /* 78-83 */ + 0x5fff87, 0x5fffaf, 0x5fffd7, 0x5fffff, 0x870000, 0x87005f, /* 84-89 */ + 0x870087, 0x8700af, 0x8700d7, 0x8700ff, 0x875f00, 0x875f5f, /* 90-95 */ + 0x875f87, 0x875faf, 0x875fd7, 0x875fff, 0x878700, 0x87875f, /* 96-101 */ + 0x878787, 0x8787af, 0x8787d7, 0x8787ff, 0x87af00, 0x87af5f, /* 102-107 */ + 0x87af87, 0x87afaf, 0x87afd7, 0x87afff, 0x87d700, 0x87d75f, /* 108-113 */ + 0x87d787, 0x87d7af, 0x87d7d7, 0x87d7ff, 0x87ff00, 0x87ff5f, /* 114-119 */ + 0x87ff87, 0x87ffaf, 0x87ffd7, 0x87ffff, 0xaf0000, 0xaf005f, /* 120-125 */ + 0xaf0087, 0xaf00af, 0xaf00d7, 0xaf00ff, 0xaf5f00, 0xaf5f5f, /* 126-131 */ + 0xaf5f87, 0xaf5faf, 0xaf5fd7, 0xaf5fff, 0xaf8700, 0xaf875f, /* 132-137 */ + 0xaf8787, 0xaf87af, 0xaf87d7, 0xaf87ff, 0xafaf00, 0xafaf5f, /* 138-143 */ + 0xafaf87, 0xafafaf, 0xafafd7, 0xafafff, 0xafd700, 0xafd75f, /* 144-149 */ + 0xafd787, 0xafd7af, 0xafd7d7, 0xafd7ff, 0xafff00, 0xafff5f, /* 150-155 */ + 0xafff87, 0xafffaf, 0xafffd7, 0xafffff, 0xd70000, 0xd7005f, /* 156-161 */ + 0xd70087, 0xd700af, 0xd700d7, 0xd700ff, 0xd75f00, 0xd75f5f, /* 162-167 */ + 0xd75f87, 0xd75faf, 0xd75fd7, 0xd75fff, 0xd78700, 0xd7875f, /* 168-173 */ + 0xd78787, 0xd787af, 0xd787d7, 0xd787ff, 0xd7af00, 0xd7af5f, /* 174-179 */ + 0xd7af87, 0xd7afaf, 0xd7afd7, 0xd7afff, 0xd7d700, 0xd7d75f, /* 180-185 */ + 0xd7d787, 0xd7d7af, 0xd7d7d7, 0xd7d7ff, 0xd7ff00, 0xd7ff5f, /* 186-191 */ + 0xd7ff87, 0xd7ffaf, 0xd7ffd7, 0xd7ffff, 0xff0000, 0xff005f, /* 192-197 */ + 0xff0087, 0xff00af, 0xff00d7, 0xff00ff, 0xff5f00, 0xff5f5f, /* 198-203 */ + 0xff5f87, 0xff5faf, 0xff5fd7, 0xff5fff, 0xff8700, 0xff875f, /* 204-209 */ + 0xff8787, 0xff87af, 0xff87d7, 0xff87ff, 0xffaf00, 0xffaf5f, /* 210-215 */ + 0xffaf87, 0xffafaf, 0xffafd7, 0xffafff, 0xffd700, 0xffd75f, /* 216-221 */ + 0xffd787, 0xffd7af, 0xffd7d7, 0xffd7ff, 0xffff00, 0xffff5f, /* 222-227 */ + 0xffff87, 0xffffaf, 0xffffd7, 0xffffff, 0x080808, 0x121212, /* 228-233 */ + 0x1c1c1c, 0x262626, 0x303030, 0x3a3a3a, 0x444444, 0x4e4e4e, /* 234-239 */ + 0x585858, 0x626262, 0x6c6c6c, 0x767676, 0x808080, 0x8a8a8a, /* 240-245 */ + 0x949494, 0x9e9e9e, 0xa8a8a8, 0xb2b2b2, 0xbcbcbc, 0xc6c6c6, /* 246-251 */ + 0xd0d0d0, 0xdadada, 0xe4e4e4, 0xeeeeee, /* 252-255 */ +}; + /* * Searches for a color with configuration option name. @@ -401,6 +450,68 @@ gui_color_get_custom (const char *color_name) } /* + * Converts a terminal color to its RGB value. + * + * Returns a RGB color as integer. + */ + +int +gui_color_convert_term_to_rgb (int color) +{ + if ((color < 0) || (color > 255)) + return 0; + + return gui_color_term256[color]; +} + +/* + * Converts a RGB color to the closest terminal color. + * + * Argument "limit" is the number of colors to check in the table of terminal + * colors (starting from 0). So for example 256 will return any of the 256 + * colors, 16 will return a color between 0 and 15. + * + * Returns the closest terminal color (0-255). + */ + +int +gui_color_convert_rgb_to_term (int rgb, int limit) +{ + int i, r1, g1, b1, r2, g2, b2, diff, best_diff, best_color; + + r1 = rgb >> 16; + g1 = (rgb >> 8) & 0xFF; + b1 = rgb & 0xFF; + + best_diff = INT_MAX; + best_color = 0; + + for (i = 0; i < limit; i++) + { + r2 = gui_color_term256[i] >> 16; + g2 = (gui_color_term256[i] >> 8) & 0xFF; + b2 = gui_color_term256[i] & 0xFF; + + diff = ((r2 - r1) * (r2 - r1)) + + ((g2 - g1) * (g2 - g1)) + + ((b2 - b1) * (b2 - b1)); + + /* exact match! */ + if (diff == 0) + return i; + + if (diff < best_diff) + { + best_color = i; + best_diff = diff; + } + } + + /* return the closest color */ + return best_color; +} + +/* * Removes WeeChat color codes from a message. * * If replacement is not NULL and not empty, it is used to replace color codes diff --git a/src/gui/gui-color.h b/src/gui/gui-color.h index 598b22555..a40527ca9 100644 --- a/src/gui/gui-color.h +++ b/src/gui/gui-color.h @@ -170,6 +170,8 @@ extern int gui_color_attr_get_flag (char c); extern void gui_color_attr_build_string (int color, char *str_attr); extern const char *gui_color_get_custom (const char *color_name); extern char *gui_color_decode (const char *string, const char *replacement); +extern int gui_color_convert_term_to_rgb (int color); +extern int gui_color_convert_rgb_to_term (int rgb, int limit); extern char *gui_color_emphasize (const char *string, const char *search, int case_sensitive, regex_t *regex); extern void gui_color_free (struct t_gui_color *color); |