/* * Grand digital clock for curses compatible terminals * Usage: grdc [-s] [-d msecs] [n] -- run for n seconds (default infinity) * Flags: -s: scroll (default scroll duration 120msec) * -d msecs: specify scroll duration (implies -s) * * modified 10-18-89 for curses (jrl) * 10-18-89 added signal handling * 03-23-04 added centering, scroll delay (cap) * * $FreeBSD: src/games/grdc/grdc.c,v 1.8.2.1 2001/10/02 11:51:49 ru Exp $ */ #include #include #include #include #include #ifndef NONPOSIX #include #endif #define XLENGTH 58 #define YDEPTH 7 time_t now; struct tm *tm; short disp[11] = { 075557, 011111, 071747, 071717, 055711, 074717, 074757, 071111, 075757, 075717, 002020 }; long old[6], next[6], new[6], mask; volatile sig_atomic_t sigtermed; int hascolor = 0; long int scroll_msecs = 120; int xbase, ybase, xmax, ymax; static void set(int, int); static void standt(int); static void sighndl(int); static void usage(void); static void draw_row(int, int); static void snooze(long int); void sighndl(int signo) { sigtermed = signo; } int main(int argc, char **argv) { int i, s, k; int n; int ch; int scrol; int forever; n = scrol = 0; forever = 1; while ((ch = getopt(argc, argv, "d:s")) != -1) switch (ch) { case 'd': scroll_msecs = atol(optarg); if (scroll_msecs < 0) errx(1, "scroll duration may not be negative"); /* FALLTHROUGH */ case 's': scrol = 1; break; case '?': default: usage(); /* NOTREACHED */ } argc -= optind; argv += optind; if (argc > 1) { usage(); /* NOTREACHED */ } if (argc > 0) { n = atoi(*argv); forever = 0; } initscr(); getmaxyx(stdscr, ymax, xmax); if (ymax < YDEPTH + 2 || xmax < XLENGTH + 4) { endwin(); errx(1, "terminal too small"); } xbase = (xmax - XLENGTH) / 2 + 2; ybase = (ymax - YDEPTH) / 2 + 1; signal(SIGINT, sighndl); signal(SIGTERM, sighndl); signal(SIGHUP, sighndl); cbreak(); noecho(); curs_set(0); hascolor = has_colors(); if (hascolor) { start_color(); init_pair(1, COLOR_BLACK, COLOR_RED); init_pair(2, COLOR_RED, COLOR_BLACK); init_pair(3, COLOR_WHITE, COLOR_BLACK); attrset(COLOR_PAIR(2)); } clear(); refresh(); if (hascolor) { attrset(COLOR_PAIR(3)); mvaddch(ybase - 2, xbase - 3, ACS_ULCORNER); hline(ACS_HLINE, XLENGTH); mvaddch(ybase - 2, xbase - 2 + XLENGTH, ACS_URCORNER); mvaddch(ybase + YDEPTH - 1, xbase - 3, ACS_LLCORNER); hline(ACS_HLINE, XLENGTH); mvaddch(ybase + YDEPTH - 1, xbase - 2 + XLENGTH, ACS_LRCORNER); move(ybase - 1, xbase - 3); vline(ACS_VLINE, YDEPTH); move(ybase - 1, xbase - 2 + XLENGTH); vline(ACS_VLINE, YDEPTH); attrset(COLOR_PAIR(2)); refresh(); } do { mask = 0; time(&now); tm = localtime(&now); 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) { snooze(scroll_msecs / 6); for(i = 0; i < 5; i++) new[i] = (new[i] & ~mask) | (new[i+1] & mask); new[5] = (new[5] & ~mask) | (next[k] & mask); } else new[k] = (new[k] & ~mask) | (next[k] & mask); next[k] = 0; for (s = 1; s >= 0; s--) { standt(s); for (i = 0; i < 6; i++) { draw_row(i, s); } if (!s) { move(ybase, 0); refresh(); } } } move(ybase, 0); refresh(); snooze(1000 - (scrol ? scroll_msecs : 0)); } while (forever ? 1 : --n); standend(); clear(); refresh(); endwin(); return(0); } void snooze(long int msecs) { struct timespec ts; ts.tv_sec = 0; ts.tv_nsec = 1000000 * msecs; nanosleep(&ts, NULL); if (sigtermed) { standend(); clear(); refresh(); endwin(); errx(1, "terminated by signal %d", (int)sigtermed); } } void draw_row(int i, int s) { long a, t; int j; if ((a = (new[i] ^ old[i]) & (s ? new : old)[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) { old[i] = new[i]; } } 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] ^ old[i]) & m; } if (mask & m) mask |= m; } 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); } } } void usage(void) { fprintf(stderr, "usage: grdc [-s] [-d msecs] [n]\n"); exit(1); }