Author: Eric S. Raymond <esr@snark.thyrsus.com> 1993
Thomas E. Dickey (beginning revision 1.27 in 1996).
-$Id: ncurses.c,v 1.429 2016/01/03 01:50:10 tom Exp $
+$Id: ncurses.c,v 1.433 2016/04/24 01:00:06 tom Exp $
***************************************************************************/
}
static void
-init_all_colors(void)
+reset_all_colors(void)
{
NCURSES_PAIRS_T c;
all_colors[c].blue);
}
+#define okCOLOR(n) ((n) >= 0 && (n) < max_colors)
+#define okRGB(n) ((n) >= 0 && (n) <= 1000)
+#define DecodeRGB(n) ((n * 1000) / 0xffff)
+
+static void
+init_all_colors(bool xterm_colors, char *palette_file)
+{
+ NCURSES_PAIRS_T cp;
+ all_colors = typeMalloc(RGB_DATA, (unsigned) max_colors);
+ if (!all_colors)
+ failed("all_colors");
+ for (cp = 0; cp < max_colors; ++cp) {
+ color_content(cp,
+ &all_colors[cp].red,
+ &all_colors[cp].green,
+ &all_colors[cp].blue);
+ }
+ /* xterm and compatible terminals can read results of an OSC string
+ * asking for the current color palette.
+ */
+ if (xterm_colors) {
+ int n;
+ int got;
+ char result[BUFSIZ];
+ int check_n, check_r, check_g, check_b;
+
+ raw();
+ noecho();
+ for (n = 0; n < max_colors; ++n) {
+ fprintf(stderr, "\033]4;%d;?\007", n);
+ got = read(0, result, sizeof(result) - 1);
+ if (got < 0)
+ break;
+ result[got] = '\0';
+ if (sscanf(result, "\033]4;%d;rgb:%x/%x/%x\007",
+ &check_n,
+ &check_r,
+ &check_g,
+ &check_b) == 4 &&
+ check_n == n) {
+ all_colors[n].red = DecodeRGB(check_r);
+ all_colors[n].green = DecodeRGB(check_g);
+ all_colors[n].blue = DecodeRGB(check_b);
+ } else {
+ break;
+ }
+ }
+ reset_prog_mode();
+ }
+ if (palette_file != 0) {
+ FILE *fp = fopen(palette_file, "r");
+ if (fp != 0) {
+ char buffer[BUFSIZ];
+ int red, green, blue;
+ int scale = 1000;
+ int c;
+ while (fgets(buffer, sizeof(buffer), fp) != 0) {
+ if (sscanf(buffer, "scale:%d", &c) == 1) {
+ scale = c;
+ } else if (sscanf(buffer, "%d:%d %d %d",
+ &c,
+ &red,
+ &green,
+ &blue) == 4
+ && okCOLOR(c)
+ && okRGB(red)
+ && okRGB(green)
+ && okRGB(blue)) {
+#define Scaled(n) (NCURSES_COLOR_T) (((n) * 1000) / scale)
+ all_colors[c].red = Scaled(red);
+ all_colors[c].green = Scaled(green);
+ all_colors[c].blue = Scaled(blue);
+ }
+ }
+ fclose(fp);
+ }
+ }
+}
+
#define scaled_rgb(n) ((255 * (n)) / 1000)
static void
/* display the color test pattern, without trying to edit colors */
{
int i;
- int current = 0;
- int this_c = 0, value = 0, field = 0;
+ int current;
+ int this_c, value, field;
int last_c;
- int top_color = 0;
- int page_size = (LINES - 6);
-
- init_all_colors();
- refresh();
+ int top_color;
+ int page_size;
+
+ reset_all_colors();
+#ifdef KEY_RESIZE
+ retry:
+#endif
+ current = 0;
+ this_c = 0;
+ value = 0;
+ field = 0;
+ top_color = 0;
+ page_size = (LINES - 6);
+ erase();
for (i = 0; i < max_colors; i++)
init_pair((NCURSES_PAIRS_T) i,
value = 0;
switch (this_c) {
+#ifdef KEY_RESIZE
+ case KEY_RESIZE:
+ move(0, 0);
+ goto retry;
+#endif
+ case '!':
+ ShellOut(FALSE);
+ /* FALLTHRU */
+ case CTRL('r'):
+ endwin();
+ refresh();
+ break;
+ case CTRL('l'):
+ refresh();
+ break;
case CTRL('b'):
case KEY_PPAGE:
if (current > 0)
current = (current == (max_colors - 1) ? 0 : current + 1);
break;
+ case '\t':
case KEY_RIGHT:
field = (field == 2 ? 0 : field + 1);
break;
+ case KEY_BTAB:
case KEY_LEFT:
field = (field == 0 ? 2 : field - 1);
break;
P("To increment or decrement a value, use the same procedure, but finish");
P("with a `+' or `-'.");
P("");
+ P("Use `!' to shell-out, ^R or ^L to repaint the screen.");
+ P("");
P("Press 'm' to invoke the top-level menu with the current color settings.");
P("To quit, do ESC");
/*
* ncurses does not reset each color individually when calling endwin().
*/
- init_all_colors();
+ reset_all_colors();
endwin();
}
#ifdef TRACE
," -t mask specify default trace-level (may toggle with ^T)"
#endif
+ ," -x use xterm-compatible control for reading color palette"
};
size_t n;
for (n = 0; n < SIZEOF(tbl); n++)
main(argc,argv)
--------------------------------------------------------------------------*/
-#define okCOLOR(n) ((n) >= 0 && (n) < max_colors)
-#define okRGB(n) ((n) >= 0 && (n) <= 1000)
-
int
main(int argc, char *argv[])
{
#endif
char *palette_file = 0;
bool monochrome = FALSE;
+ bool xterm_colors = FALSE;
setlocale(LC_ALL, "");
- while ((c = getopt(argc, argv, "a:dEe:fhmp:s:Tt:")) != -1) {
+ while ((c = getopt(argc, argv, "a:dEe:fhmp:s:Tt:x")) != -1) {
switch (c) {
#ifdef NCURSES_VERSION
case 'a':
save_trace = (unsigned) strtol(optarg, 0, 0);
break;
#endif
+ case 'x':
+ xterm_colors = TRUE;
+ break;
default:
usage();
}
initscr();
bkgdset(BLANK);
+ set_terminal_modes();
+ def_prog_mode();
+
/* tests, in general, will want these modes */
use_colors = (bool) (monochrome ? FALSE : has_colors());
max_pairs = COLOR_PAIRS; /* was > 256 ? 256 : COLOR_PAIRS */
if (can_change_color()) {
- NCURSES_PAIRS_T cp;
- all_colors = typeMalloc(RGB_DATA, (unsigned) max_colors);
- if (!all_colors)
- failed("all_colors");
- for (cp = 0; cp < max_colors; ++cp) {
- color_content(cp,
- &all_colors[cp].red,
- &all_colors[cp].green,
- &all_colors[cp].blue);
- }
- if (palette_file != 0) {
- FILE *fp = fopen(palette_file, "r");
- if (fp != 0) {
- char buffer[BUFSIZ];
- int red, green, blue;
- int scale = 1000;
- while (fgets(buffer, sizeof(buffer), fp) != 0) {
- if (sscanf(buffer, "scale:%d", &c) == 1) {
- scale = c;
- } else if (sscanf(buffer, "%d:%d %d %d",
- &c,
- &red,
- &green,
- &blue) == 4
- && okCOLOR(c)
- && okRGB(red)
- && okRGB(green)
- && okRGB(blue)) {
-#define Scaled(n) (NCURSES_COLOR_T) (((n) * 1000) / scale)
- all_colors[c].red = Scaled(red);
- all_colors[c].green = Scaled(green);
- all_colors[c].blue = Scaled(blue);
- }
- }
- fclose(fp);
- }
- }
+ init_all_colors(xterm_colors, palette_file);
}
}
- set_terminal_modes();
- def_prog_mode();
/*
* Return to terminal mode, so we're guaranteed of being able to
projects / ncurses.git / commitdiff