39f2269fcb
Obtained from: ftp://dickey.his.com/ncurses/
316 lines
6.4 KiB
C
316 lines
6.4 KiB
C
/*
|
|
* Grand digital clock for curses compatible terminals
|
|
* Usage: gdc [-s] [n] -- run for n seconds (default infinity)
|
|
* Flags: -s: scroll
|
|
*
|
|
* modified 10-18-89 for curses (jrl)
|
|
* 10-18-89 added signal handling
|
|
*
|
|
* $Id: gdc.c,v 1.21 2002/03/23 22:17:24 tom Exp $
|
|
*/
|
|
|
|
#include <time.h>
|
|
|
|
#include <test.priv.h>
|
|
|
|
#define YBASE 10
|
|
#define XBASE 10
|
|
#define XLENGTH 54
|
|
#define YDEPTH 5
|
|
|
|
static short disp[11] =
|
|
{
|
|
075557, 011111, 071747, 071717, 055711,
|
|
074717, 074757, 071111, 075757, 075717, 002020
|
|
};
|
|
static long older[6], next[6], newer[6], mask;
|
|
|
|
static int sigtermed = 0;
|
|
static bool redirected = FALSE;
|
|
static bool hascolor = FALSE;
|
|
|
|
static RETSIGTYPE
|
|
sighndl(int signo)
|
|
{
|
|
signal(signo, sighndl);
|
|
sigtermed = signo;
|
|
if (redirected) {
|
|
endwin();
|
|
ExitProgram(EXIT_FAILURE);
|
|
}
|
|
}
|
|
|
|
static void
|
|
drawbox(void)
|
|
{
|
|
chtype bottom[XLENGTH + 1];
|
|
int n;
|
|
|
|
if (hascolor)
|
|
attrset(COLOR_PAIR(3));
|
|
|
|
mvaddch(YBASE - 1, XBASE - 1, ACS_ULCORNER);
|
|
hline(ACS_HLINE, XLENGTH);
|
|
mvaddch(YBASE - 1, XBASE + XLENGTH, ACS_URCORNER);
|
|
|
|
mvaddch(YBASE + YDEPTH, XBASE - 1, ACS_LLCORNER);
|
|
mvinchnstr(YBASE + YDEPTH, XBASE, bottom, XLENGTH);
|
|
for (n = 0; n < XLENGTH; n++)
|
|
bottom[n] = ACS_HLINE | (bottom[n] & (A_ATTRIBUTES | A_COLOR));
|
|
mvaddchnstr(YBASE + YDEPTH, XBASE, bottom, XLENGTH);
|
|
mvaddch(YBASE + YDEPTH, XBASE + XLENGTH, ACS_LRCORNER);
|
|
|
|
move(YBASE, XBASE - 1);
|
|
vline(ACS_VLINE, YDEPTH);
|
|
|
|
move(YBASE, XBASE + XLENGTH);
|
|
vline(ACS_VLINE, YDEPTH);
|
|
|
|
if (hascolor)
|
|
attrset(COLOR_PAIR(2));
|
|
}
|
|
|
|
static void
|
|
standt(int on)
|
|
{
|
|
if (on) {
|
|
if (hascolor) {
|
|
attron(COLOR_PAIR(1));
|
|
} else {
|
|
attron(A_STANDOUT);
|
|
}
|
|
} else {
|
|
if (hascolor) {
|
|
attron(COLOR_PAIR(2));
|
|
} else {
|
|
attroff(A_STANDOUT);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
set(int t, int n)
|
|
{
|
|
int i, m;
|
|
|
|
m = 7 << n;
|
|
for (i = 0; i < 5; i++) {
|
|
next[i] |= ((disp[t] >> ((4 - i) * 3)) & 07) << n;
|
|
mask |= (next[i] ^ older[i]) & m;
|
|
}
|
|
if (mask & m)
|
|
mask |= m;
|
|
}
|
|
|
|
static void
|
|
usage(void)
|
|
{
|
|
static const char *msg[] =
|
|
{
|
|
"Usage: gdc [options] [count]"
|
|
,""
|
|
,"Options:"
|
|
," -n redirect input to /dev/null"
|
|
," -s scroll each number into place, rather than flipping"
|
|
,""
|
|
,"If you specify a count, gdc runs for that number of seconds"
|
|
};
|
|
unsigned j;
|
|
for (j = 0; j < SIZEOF(msg); j++)
|
|
fprintf(stderr, "%s\n", msg[j]);
|
|
ExitProgram(EXIT_FAILURE);
|
|
}
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
time_t now;
|
|
struct tm *tm;
|
|
long t, a;
|
|
int i, j, s, k;
|
|
int count = 0;
|
|
FILE *ofp = stdout;
|
|
FILE *ifp = stdin;
|
|
bool scrol = FALSE;
|
|
|
|
signal(SIGINT, sighndl);
|
|
signal(SIGTERM, sighndl);
|
|
signal(SIGKILL, sighndl);
|
|
|
|
while ((k = getopt(argc, argv, "sn")) != EOF) {
|
|
switch (k) {
|
|
case 's':
|
|
scrol = TRUE;
|
|
break;
|
|
case 'n':
|
|
ifp = fopen("/dev/null", "r");
|
|
redirected = TRUE;
|
|
break;
|
|
default:
|
|
usage();
|
|
}
|
|
}
|
|
if (optind < argc) {
|
|
count = atoi(argv[optind++]);
|
|
}
|
|
if (optind < argc)
|
|
usage();
|
|
|
|
if (redirected) {
|
|
char *name = getenv("TERM");
|
|
if (name == 0
|
|
|| newterm(name, ofp, ifp) == 0) {
|
|
fprintf(stderr, "cannot open terminal\n");
|
|
ExitProgram(EXIT_FAILURE);
|
|
}
|
|
|
|
} else {
|
|
initscr();
|
|
}
|
|
cbreak();
|
|
noecho();
|
|
nodelay(stdscr, 1);
|
|
curs_set(0);
|
|
|
|
hascolor = has_colors();
|
|
|
|
if (hascolor) {
|
|
int bg = COLOR_BLACK;
|
|
start_color();
|
|
#if HAVE_USE_DEFAULT_COLORS
|
|
if (use_default_colors() == OK)
|
|
bg = -1;
|
|
#endif
|
|
init_pair(1, COLOR_BLACK, COLOR_RED);
|
|
init_pair(2, COLOR_RED, bg);
|
|
init_pair(3, COLOR_WHITE, bg);
|
|
attrset(COLOR_PAIR(2));
|
|
}
|
|
|
|
restart:
|
|
for (j = 0; j < 5; j++)
|
|
older[j] = newer[j] = next[j] = 0;
|
|
|
|
clear();
|
|
drawbox();
|
|
|
|
do {
|
|
char buf[30];
|
|
|
|
time(&now);
|
|
tm = localtime(&now);
|
|
|
|
mask = 0;
|
|
set(tm->tm_sec % 10, 0);
|
|
set(tm->tm_sec / 10, 4);
|
|
set(tm->tm_min % 10, 10);
|
|
set(tm->tm_min / 10, 14);
|
|
set(tm->tm_hour % 10, 20);
|
|
set(tm->tm_hour / 10, 24);
|
|
set(10, 7);
|
|
set(10, 17);
|
|
|
|
for (k = 0; k < 6; k++) {
|
|
if (scrol) {
|
|
for (i = 0; i < 5; i++)
|
|
newer[i] = (newer[i] & ~mask) | (newer[i + 1] & mask);
|
|
newer[5] = (newer[5] & ~mask) | (next[k] & mask);
|
|
} else
|
|
newer[k] = (newer[k] & ~mask) | (next[k] & mask);
|
|
next[k] = 0;
|
|
for (s = 1; s >= 0; s--) {
|
|
standt(s);
|
|
for (i = 0; i < 6; i++) {
|
|
if ((a = (newer[i] ^ older[i]) & (s ? newer : older)[i])
|
|
!= 0) {
|
|
for (j = 0, t = 1 << 26; t; t >>= 1, j++) {
|
|
if (a & t) {
|
|
if (!(a & (t << 1))) {
|
|
move(YBASE + i, XBASE + 2 * j);
|
|
}
|
|
addstr(" ");
|
|
}
|
|
}
|
|
}
|
|
if (!s) {
|
|
older[i] = newer[i];
|
|
}
|
|
}
|
|
if (!s) {
|
|
if (scrol)
|
|
drawbox();
|
|
refresh();
|
|
/*
|
|
* If we're scrolling, space out the refreshes to fake
|
|
* movement. That's 7 frames, or 6 intervals, which would
|
|
* be 166 msec if we spread it out over a second. It looks
|
|
* better (but will well on a slow terminal, e.g., less
|
|
* than 9600bd) to squeeze that into a half-second, and use
|
|
* half of 170 msec to ensure that the program doesn't eat
|
|
* a lot of time when asking what time it is, at the top of
|
|
* this loop -TD
|
|
*/
|
|
if (scrol)
|
|
napms(85);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* this depends on the detailed format of ctime(3) */
|
|
(void) strcpy(buf, ctime(&now));
|
|
(void) strcpy(buf + 10, buf + 19);
|
|
mvaddstr(16, 30, buf);
|
|
|
|
move(6, 0);
|
|
drawbox();
|
|
refresh();
|
|
|
|
/*
|
|
* If we're not scrolling, wait 1000 msec (1 sec). Use napms() rather
|
|
* than sleep() because the latter does odd things on some systems,
|
|
* e.g., suspending output as well.
|
|
*/
|
|
if (scrol)
|
|
napms(500);
|
|
else
|
|
napms(1000);
|
|
|
|
/*
|
|
* This is a safe way to check if we're interrupted - making the signal
|
|
* handler set a flag that we can check. Since we're running
|
|
* nodelay(), the wgetch() call returns immediately, and in particular
|
|
* will return an error if interrupted. This works only if we can
|
|
* read from the input, of course.
|
|
*/
|
|
switch (wgetch(stdscr)) {
|
|
case 'q':
|
|
count = 1;
|
|
break;
|
|
case 's':
|
|
nodelay(stdscr, FALSE);
|
|
break;
|
|
case ' ':
|
|
nodelay(stdscr, TRUE);
|
|
break;
|
|
#ifdef KEY_RESIZE
|
|
case KEY_RESIZE:
|
|
#endif
|
|
case '?':
|
|
goto restart;
|
|
case ERR:
|
|
if (sigtermed) {
|
|
standend();
|
|
endwin();
|
|
fprintf(stderr, "gdc terminated by signal %d\n", sigtermed);
|
|
ExitProgram(EXIT_FAILURE);
|
|
}
|
|
/* FALLTHRU */
|
|
default:
|
|
continue;
|
|
}
|
|
} while (--count);
|
|
standend();
|
|
endwin();
|
|
ExitProgram(EXIT_SUCCESS);
|
|
}
|