Query the client terminal for foreground and background colours and if

OSC 10 or 11 is received but no colour has been set inside tmux, return
the colour from the first attached client (probably most people will
have all light or or all dark terminals).
This commit is contained in:
nicm
2023-01-03 11:43:24 +00:00
parent 3fe01ff09c
commit a41a927441
6 changed files with 199 additions and 61 deletions

View File

@ -960,6 +960,47 @@ colour_byname(const char *name)
return (-1);
}
/* Parse colour from an X11 string. */
int
colour_parseX11(const char *p)
{
double c, m, y, k = 0;
u_int r, g, b;
size_t len = strlen(p);
int colour = -1;
char *copy;
if ((len == 12 && sscanf(p, "rgb:%02x/%02x/%02x", &r, &g, &b) == 3) ||
(len == 7 && sscanf(p, "#%02x%02x%02x", &r, &g, &b) == 3) ||
sscanf(p, "%d,%d,%d", &r, &g, &b) == 3)
colour = colour_join_rgb(r, g, b);
else if ((len == 18 &&
sscanf(p, "rgb:%04x/%04x/%04x", &r, &g, &b) == 3) ||
(len == 13 && sscanf(p, "#%04x%04x%04x", &r, &g, &b) == 3))
colour = colour_join_rgb(r >> 8, g >> 8, b >> 8);
else if ((sscanf(p, "cmyk:%lf/%lf/%lf/%lf", &c, &m, &y, &k) == 4 ||
sscanf(p, "cmy:%lf/%lf/%lf", &c, &m, &y) == 3) &&
c >= 0 && c <= 1 && m >= 0 && m <= 1 &&
y >= 0 && y <= 1 && k >= 0 && k <= 1) {
colour = colour_join_rgb(
(1 - c) * (1 - k) * 255,
(1 - m) * (1 - k) * 255,
(1 - y) * (1 - k) * 255);
} else {
while (len != 0 && *p == ' ') {
p++;
len--;
}
while (len != 0 && p[len - 1] == ' ')
len--;
copy = xstrndup(p, len);
colour = colour_byname(copy);
free(copy);
}
log_debug("%s: %s = %s", __func__, p, colour_tostring(colour));
return (colour);
}
/* Initialize palette. */
void
colour_palette_init(struct colour_palette *p)
@ -1069,5 +1110,4 @@ colour_palette_from_option(struct colour_palette *p, struct options *oo)
}
a = options_array_next(a);
}
}