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 1.441 2016/08/27 23:43:06 tom Exp $
***************************************************************************/
}
static bool
-isQuit(int c)
+isQuit(int c, bool escape)
{
- return ((c) == QUIT || (c) == ESCAPE);
+ return ((c) == QUIT || (escape && ((c) == ESCAPE)));
}
#define case_QUIT QUIT: case ESCAPE
return ((delay < 0) && flags['t']);
}
+#define ExitOnEscape() (flags[UChar('k')] && flags[UChar('t')])
+
static void
wgetch_help(WINDOW *win, GetchFlags flags)
{
printw("Type any key to see its %s value. Also:\n",
flags['k'] ? "keypad" : "literal");
for (n = 0; n < SIZEOF(help); ++n) {
+ const char *msg = help[n];
int row = 1 + (int) (n % chk);
int col = (n >= chk) ? COLS / 2 : 0;
- int flg = ((strstr(help[n], "toggle") != 0)
- && (flags[UChar(*help[n])] != FALSE));
+ int flg = ((strstr(msg, "toggle") != 0)
+ && (flags[UChar(*msg)] != FALSE));
+ if (*msg == '^' && ExitOnEscape())
+ msg = "^[,^q -- quit";
if (flg)
(void) standout();
- MvPrintw(row, col, "%s", help[n]);
+ MvPrintw(row, col, "%s", msg);
if (col == 0)
clrtoeol();
if (flg)
if (c == ERR && blocking_getch(flags, delay)) {
wprintw(win, "ERR");
wgetch_wrap(win, first_y);
- } else if (isQuit(c)) {
+ } else if (isQuit(c, ExitOnEscape())) {
break;
} else if (c == 'e') {
flags[UChar('e')] = !flags[UChar('e')];
if (code == ERR && blocking_getch(flags, delay)) {
wprintw(win, "ERR");
wgetch_wrap(win, first_y);
- } else if (isQuit((int) c)) {
+ } else if (isQuit((int) c, ExitOnEscape())) {
break;
} else if (c == 'e') {
flags[UChar('e')] = !flags[UChar('e')];
}
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) (NCURSES_COLOR_T) ((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 = (int) 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");
MvPrintw(LINES - 1, 0, "Number: %d", value);
clrtoeol();
} while
- (!isQuit(this_c));
+ (!isQuit(this_c, TRUE));
erase();
/*
* ncurses does not reset each color individually when calling endwin().
*/
- init_all_colors();
+ reset_all_colors();
endwin();
}
beep();
break;
}
- } while (!isQuit(c = Getchar()));
+ } while (!isQuit(c = Getchar(), TRUE));
done:
slk_clear();
beep();
break;
}
- } while (!isQuit(c = Getchar()));
+ } while (!isQuit(c = Getchar(), TRUE));
done:
slk_clear();
my_list[at_code].name);
}
refresh();
- } while (!isQuit(c = Getchar()));
+ } while (!isQuit(c = Getchar(), TRUE));
Pause();
erase();
my_list[at_code].name);
}
refresh();
- } while (!isQuit(c = Getchar()));
+ } while (!isQuit(c = Getchar(), TRUE));
Pause();
erase();
WINDOW *wind;
};
-#if defined(NCURSES_VERSION)
-#if (NCURSES_VERSION_PATCH < 20070331) && NCURSES_EXT_FUNCS
+#if defined(NCURSES_VERSION) && NCURSES_EXT_FUNCS
+#if (NCURSES_VERSION_PATCH < 20070331)
#define is_keypad(win) (win)->_use_keypad
#define is_scrollok(win) (win)->_scroll
-#elif !defined(is_keypad)
-#define is_keypad(win) FALSE
-#define is_scrollok(win) FALSE
#endif
#else
#define is_keypad(win) FALSE
static void
newwin_legend(FRAME * curp)
{
+#define DATA(num, name) { name, num }
static const struct {
const char *msg;
int code;
} legend[] = {
- {
- "^C = create window", 0
- },
- {
- "^N = next window", 0
- },
- {
- "^P = previous window", 0
- },
- {
- "^F = scroll forward", 0
- },
- {
- "^B = scroll backward", 0
- },
- {
- "^K = keypad(%s)", 1
- },
- {
- "^S = scrollok(%s)", 2
- },
- {
- "^W = save window to file", 0
- },
- {
- "^R = restore window", 0
- },
+ DATA(0, "^C = create window"),
+ DATA(0, "^N = next window"),
+ DATA(0, "^P = previous window"),
+ DATA(0, "^F = scroll forward"),
+ DATA(0, "^B = scroll backward"),
+ DATA(1, "^K = keypad(%s)"),
+ DATA(2, "^S = scrollok(%s)"),
+ DATA(0, "^W = save window"),
+ DATA(0, "^R = restore window"),
#if HAVE_WRESIZE
- {
- "^X = resize", 0
- },
+ DATA(0, "^X = resize"),
#endif
- {
- "^Q%s = exit", 3
- }
+ DATA(3, "^Q%s = exit")
};
+#undef DATA
size_t n;
int x;
bool do_keypad = HaveKeypad(curp);
} else if ((fp = fopen(DUMPFILE, "w")) == (FILE *) 0) {
transient(current, "Can't open screen dump file");
} else {
- (void) putwin(frame_win(current), fp);
+ int rc = putwin(frame_win(current), fp);
(void) fclose(fp);
- current = delete_framed(current, TRUE);
+ if (rc == OK) {
+ current = delete_framed(current, TRUE);
+ } else {
+ transient(current, "Can't write screen dump file");
+ }
}
break;
break;
#endif /* HAVE_WRESIZE */
- case KEY_F(10): /* undocumented --- use this to test area clears */
- selectcell(0, 0, LINES - 1, COLS - 1);
- clrtobot();
- refresh();
- break;
-
case KEY_UP:
newwin_move(current, -1, 0);
break;
usescr = frame_win(current);
wrefresh(usescr);
} while
- (!isQuit(c = wGetchar(usescr))
+ (!isQuit(c = wGetchar(usescr), TRUE)
&& (c != ERR));
breakout:
memset(flavor, 0, sizeof(flavor));
state = overlap_help(0, flavor);
- while (!isQuit(ch = Getchar()))
+ while (!isQuit(ch = Getchar(), TRUE))
switch (ch) {
case 'a': /* refresh window A first, then B */
overlap_test_0(win1, win2);
endwin();
}
+static void
+show_setting_name(const char *name)
+{
+ printw("%-25s ", name);
+}
+
+static void
+show_string_setting(const char *name, const char *value)
+{
+ show_setting_name(name);
+ if (value) {
+ printw("\"%s\"", value);
+ } else {
+ attron(A_REVERSE);
+ addstr("<NULL>");
+ attroff(A_REVERSE);
+ }
+ addch('\n');
+}
+
+static void
+show_number_setting(const char *name, int value)
+{
+ show_setting_name(name);
+ if (value >= 0) {
+ printw("%d", value);
+ } else {
+ attron(A_REVERSE);
+ printw("%d", value);
+ attroff(A_REVERSE);
+ }
+ addch('\n');
+}
+
+static void
+show_boolean_setting(const char *name, int value)
+{
+ show_setting_name(name);
+ if (value >= 0) {
+ printw("%s", value ? "TRUE" : "FALSE");
+ } else {
+ attron(A_REVERSE);
+ printw("%d", value);
+ attroff(A_REVERSE);
+ }
+ addch('\n');
+}
+
+static void
+show_settings(void)
+{
+#if USE_WIDEC_SUPPORT
+ wchar_t ch;
+#endif
+
+ move(0, 0);
+ show_string_setting("termname", termname());
+ show_string_setting("longname", longname());
+ show_number_setting("baudrate", baudrate());
+ if (erasechar() > 0) {
+ show_string_setting("unctrl(erasechar)", unctrl(erasechar()));
+ show_string_setting("keyname(erasechar)", keyname(erasechar()));
+ }
+ if (killchar() > 0) {
+ show_string_setting("unctrl(killchar)", unctrl(killchar()));
+ show_string_setting("keyname(killchar)", keyname(killchar()));
+ }
+#if USE_WIDEC_SUPPORT
+ if (erasewchar(&ch) == OK) {
+ show_string_setting("key_name(erasewchar)", key_name(ch));
+ }
+ if (killwchar(&ch) == OK) {
+ show_string_setting("key_name(killwchar)", key_name(ch));
+ }
+#endif
+ show_boolean_setting("has_ic", has_ic());
+ show_boolean_setting("has_il", has_il());
+ Pause();
+ erase();
+ endwin();
+}
+
/****************************************************************************
*
* Main sequence
break;
#endif
+ case 'v':
+ show_settings();
+ break;
+
case '?':
break;
#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++)
#if USE_LIBMENU && defined(TRACE)
(void) puts("t = set trace level");
#endif
+ (void) puts("v = show terminal name and settings");
(void) puts("? = repeat this command summary");
(void) fputs("> ", stdout);
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 / blobdiff