Use dark gray color for black glyphs in TTY
This is Michael Deutschmann's use_darkgray -patch. Adds a boolean option use_darkgray, settable in config file. This patch has been in use on NAO for years, and I have heard once someone say their terminal didn't support the dark gray color.
This commit is contained in:
Pasi Kallinen
@@ -809,10 +809,9 @@ cl_eos() /* free after Robert Viduya */
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extern char *tparm();
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#endif
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# ifdef COLOR_BLACK /* trust include file */
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#undef COLOR_BLACK
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# else
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# ifndef COLOR_BLACK /* trust include file */
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# ifndef _M_UNIX /* guess BGR */
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#define COLOR_BLACK 0
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#define COLOR_BLUE 1
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#define COLOR_GREEN 2
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#define COLOR_CYAN 3
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@@ -821,6 +820,7 @@ extern char *tparm();
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#define COLOR_YELLOW 6
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#define COLOR_WHITE 7
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# else /* guess RGB */
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#define COLOR_BLACK 0
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#define COLOR_RED 1
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#define COLOR_GREEN 2
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#define COLOR_YELLOW 3
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@@ -830,43 +830,125 @@ extern char *tparm();
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#define COLOR_WHITE 7
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# endif
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# endif
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#define COLOR_BLACK COLOR_BLUE
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const int ti_map[8] = {
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COLOR_BLACK, COLOR_RED, COLOR_GREEN, COLOR_YELLOW,
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COLOR_BLUE, COLOR_MAGENTA, COLOR_CYAN, COLOR_WHITE };
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/* Mapping data for the six terminfo colors that resolve to pairs of nethack
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* colors. Black and white are handled specially.
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*/
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const struct {int ti_color, nh_color, nh_bright_color;} ti_map[6] =
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{
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{COLOR_RED,CLR_RED,CLR_ORANGE},
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{COLOR_GREEN,CLR_GREEN,CLR_BRIGHT_GREEN},
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{COLOR_YELLOW,CLR_BROWN,CLR_YELLOW},
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{COLOR_BLUE,CLR_BLUE,CLR_BRIGHT_BLUE},
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{COLOR_MAGENTA,CLR_MAGENTA,CLR_BRIGHT_MAGENTA},
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{COLOR_CYAN,CLR_CYAN,CLR_BRIGHT_CYAN}
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};
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static void
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init_hilite()
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{
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register int c;
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char *setf, *scratch;
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for (c = 0; c < SIZE(hilites); c++)
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hilites[c] = nh_HI;
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hilites[CLR_GRAY] = hilites[NO_COLOR] = (char *)0;
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int md_len;
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if (tgetnum("Co") < 8
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|| (MD == NULL) || (strlen(MD) == 0)
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|| ((setf = tgetstr("AF", (char **)0)) == (char *)0
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&& (setf = tgetstr("Sf", (char **)0)) == (char *)0))
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{
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/* Fallback when colors not available
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* It's arbitrary to collapse all colors except gray
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* together, but that's what the previous code did.
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*/
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hilites[CLR_BLACK] = nh_HI;
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hilites[CLR_RED] = nh_HI;
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hilites[CLR_GREEN] = nh_HI;
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hilites[CLR_BROWN] = nh_HI;
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hilites[CLR_BLUE] = nh_HI;
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hilites[CLR_MAGENTA] = nh_HI;
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hilites[CLR_CYAN] = nh_HI;
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hilites[CLR_GRAY] = "";
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hilites[NO_COLOR] = "";
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hilites[CLR_ORANGE] = nh_HI;
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hilites[CLR_BRIGHT_GREEN] = nh_HI;
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hilites[CLR_YELLOW] = nh_HI;
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hilites[CLR_BRIGHT_BLUE] = nh_HI;
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hilites[CLR_BRIGHT_MAGENTA] = nh_HI;
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hilites[CLR_BRIGHT_CYAN] = nh_HI;
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hilites[CLR_WHITE] = nh_HI;
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return;
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for (c = 0; c < CLR_MAX / 2; c++) {
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scratch = tparm(setf, ti_map[c]);
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if (c != CLR_GRAY) {
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hilites[c] = (char *) alloc(strlen(scratch) + 1);
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Strcpy(hilites[c], scratch);
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}
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if (c != CLR_BLACK) {
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hilites[c|BRIGHT] = (char*) alloc(strlen(scratch)+strlen(MD)+1);
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Strcpy(hilites[c|BRIGHT], MD);
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Strcat(hilites[c|BRIGHT], scratch);
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}
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md_len = strlen(MD);
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c = 6;
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while (c--) {
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char *work;
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scratch = tparm(setf,ti_map[c].ti_color);
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work = (char *) alloc(strlen(scratch) + md_len + 1);
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Strcpy(work,MD);
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hilites[ti_map[c].nh_bright_color] = work;
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work += md_len;
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Strcpy(work,scratch);
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hilites[ti_map[c].nh_color] = work;
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}
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scratch = tparm(setf,COLOR_WHITE);
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hilites[CLR_WHITE] = (char *) alloc(strlen(scratch) + md_len + 1);
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Strcpy(hilites[CLR_WHITE],MD);
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Strcat(hilites[CLR_WHITE],scratch);
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hilites[CLR_GRAY] = "";
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hilites[NO_COLOR] = "";
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if (iflags.wc2_darkgray) {
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/* On many terminals, esp. those using classic PC CGA/EGA/VGA
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* textmode, specifying "hilight" and "black" simultaneously
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* produces a dark shade of gray that is visible against a
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* black background. We can use it to represent black objects.
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*/
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scratch = tparm(setf,COLOR_BLACK);
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hilites[CLR_BLACK] = (char *) alloc(strlen(scratch) + md_len + 1);
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Strcpy(hilites[CLR_BLACK],MD);
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Strcat(hilites[CLR_BLACK],scratch);
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} else {
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/* But it's concievable that hilighted black-on-black could
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* still be invisible on many others. We substitute blue for
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* black.
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*/
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hilites[CLR_BLACK] = hilites[CLR_BLUE];
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}
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}
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static void
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kill_hilite()
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{
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/* if colors weren't available, no freeing needed */
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if (hilites[CLR_BLACK] == nh_HI)
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return;
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if (hilites[CLR_BLACK] != hilites[CLR_BLUE])
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free(hilites[CLR_BLACK]);
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/* CLR_BLUE overlaps CLR_BRIGHT_BLUE, do not free */
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/* CLR_GREEN overlaps CLR_BRIGHT_GREEN, do not free */
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/* CLR_CYAN overlaps CLR_BRIGHT_CYAN, do not free */
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/* CLR_RED overlaps CLR_ORANGE, do not free */
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/* CLR_MAGENTA overlaps CLR_BRIGHT_MAGENTA, do not free */
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/* CLR_BROWN overlaps CLR_YELLOW, do not free */
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/* CLR_GRAY is a constant "", do not free */
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/* NO_COLOR is a constant "", do not free */
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free(hilites[CLR_BRIGHT_BLUE]);
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free(hilites[CLR_BRIGHT_GREEN]);
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free(hilites[CLR_BRIGHT_CYAN]);
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free(hilites[CLR_YELLOW]);
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free(hilites[CLR_ORANGE]);
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free(hilites[CLR_BRIGHT_MAGENTA]);
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free(hilites[CLR_WHITE]);
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}
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# else /* UNIX && TERMINFO */
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# ifndef TOS
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@@ -1011,7 +1093,6 @@ init_hilite()
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# endif
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# endif /* TOS */
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}
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# endif /* UNIX */
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static void
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kill_hilite()
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@@ -1029,6 +1110,7 @@ kill_hilite()
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# endif
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return;
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}
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# endif /* UNIX */
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#endif /* TEXTCOLOR */
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@@ -56,7 +56,7 @@ struct window_procs tty_procs = {
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#if defined(SELECTSAVED)
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WC2_SELECTSAVED|
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#endif
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0L,
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WC2_DARKGRAY,
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tty_init_nhwindows,
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tty_player_selection,
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tty_askname,
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