Setulc only does RGB colour so add Setulc1 to do non-RGB colours, GitHub

issue 3627.
This commit is contained in:
nicm 2023-09-02 09:17:23 +00:00
parent c5542637d7
commit d209fe9b1e
5 changed files with 28 additions and 9 deletions

10
tmux.1
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@ -6802,9 +6802,15 @@ Set a styled underscore.
The single parameter is one of: 0 for no underscore, 1 for normal
underscore, 2 for double underscore, 3 for curly underscore, 4 for dotted
underscore and 5 for dashed underscore.
.It Em \&Setulc , \&ol
.It Em \&Setulc , \&Setulc1, \&ol
Set the underscore colour or reset to the default.
The argument is (red * 65536) + (green * 256) + blue where each is between 0
.Em Setulc
is for RGB colours and
.Em Setulc1
for ANSI or 256 colours.
The
.Em Setulc
argument is (red * 65536) + (green * 256) + blue where each is between 0
and 255.
.It Em \&Ss , Se
Set or reset the cursor style.

1
tmux.h
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@ -536,6 +536,7 @@ enum tty_code_code {
TTYC_SETRGBB,
TTYC_SETRGBF,
TTYC_SETULC,
TTYC_SETULC1,
TTYC_SGR0,
TTYC_SITM,
TTYC_SMACS,

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@ -145,6 +145,7 @@ static const struct tty_feature tty_feature_overline = {
static const char *const tty_feature_usstyle_capabilities[] = {
"Smulx=\\E[4::%p1%dm",
"Setulc=\\E[58::2::%p1%{65536}%/%d::%p1%{256}%/%{255}%&%d::%p1%{255}%&%d%;m",
"Setulc1=\\E[58::5::%p1%dm",
"ol=\\E[59m",
NULL
};

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@ -264,6 +264,7 @@ static const struct tty_term_code_entry tty_term_codes[] = {
[TTYC_SETRGBB] = { TTYCODE_STRING, "setrgbb" },
[TTYC_SETRGBF] = { TTYCODE_STRING, "setrgbf" },
[TTYC_SETULC] = { TTYCODE_STRING, "Setulc" },
[TTYC_SETULC1] = { TTYCODE_STRING, "Setulc1" },
[TTYC_SE] = { TTYCODE_STRING, "Se" },
[TTYC_SXL] = { TTYCODE_FLAG, "Sxl" },
[TTYC_SGR0] = { TTYCODE_STRING, "sgr0" },

16
tty.c
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@ -2814,11 +2814,13 @@ tty_check_us(__unused struct tty *tty, struct colour_palette *palette,
gc->us = c;
}
/* Underscore colour is set as RGB so convert. */
/* Convert underscore colour if only RGB can be supported. */
if (!tty_term_has(tty->term, TTYC_SETULC1)) {
if ((c = colour_force_rgb (gc->us)) == -1)
gc->us = 8;
else
gc->us = c;
}
}
static void
@ -2898,9 +2900,17 @@ tty_colours_us(struct tty *tty, const struct grid_cell *gc)
goto save;
}
/* Must be an RGB colour - this should never happen. */
if (~gc->us & COLOUR_FLAG_RGB)
/*
* If this is not an RGB colour, use Setulc1 if it exists, otherwise
* convert.
*/
if (~gc->us & COLOUR_FLAG_RGB) {
c = gc->us;
if ((~c & COLOUR_FLAG_256) && (c >= 90 && c <= 97))
c -= 82;
tty_putcode_i(tty, TTYC_SETULC1, c & ~COLOUR_FLAG_256);
return;
}
/*
* Setulc and setal follows the ncurses(3) one argument "direct colour"