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/**************************************************************************** * Copyright (c) 1998-2012,2013 Free Software Foundation, Inc. * * * * Permission is hereby granted, free of charge, to any person obtaining a * * copy of this software and associated documentation files (the * * "Software"), to deal in the Software without restriction, including * * without limitation the rights to use, copy, modify, merge, publish, * * distribute, distribute with modifications, sublicense, and/or sell * * copies of the Software, and to permit persons to whom the Software is * * furnished to do so, subject to the following conditions: * * * * The above copyright notice and this permission notice shall be included * * in all copies or substantial portions of the Software. * * * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * * * * Except as contained in this notice, the name(s) of the above copyright * * holders shall not be used in advertising or otherwise to promote the * * sale, use or other dealings in this Software without prior written * * authorization. * ****************************************************************************/ /* * 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 1.37 2013/04/27 19:50:17 tom Exp $ */ #include <test.priv.h> #include <time.h> #define YBASE 10 #define XBASE 10 #define XLENGTH 54 #define YDEPTH 5 #define PAIR_DIGITS 1 #define PAIR_OTHERS 2 #define PAIR_FRAMES 3 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 void sighndl(int signo) { signal(signo, sighndl); sigtermed = signo; if (redirected) { endwin(); ExitProgram(EXIT_FAILURE); } } static void drawbox(bool scrolling) { chtype bottom[XLENGTH + 1]; int n; if (hascolor) (void) attrset((attr_t) COLOR_PAIR(PAIR_FRAMES)); 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); if ((mvinchnstr(YBASE + YDEPTH, XBASE, bottom, XLENGTH)) != ERR) { for (n = 0; n < XLENGTH; n++) { if (!scrolling) bottom[n] &= ~A_COLOR; bottom[n] = ACS_HLINE | (bottom[n] & (A_ATTRIBUTES | A_COLOR)); } (void) 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) (void) attrset((attr_t) COLOR_PAIR(PAIR_OTHERS)); } static void standt(int on) { if (on) { if (hascolor) { attron((attr_t) COLOR_PAIR(PAIR_DIGITS)); } else { attron(A_STANDOUT); } } else { if (hascolor) { attron((attr_t) COLOR_PAIR(PAIR_OTHERS)); } 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; setlocale(LC_ALL, ""); CATCHALL(sighndl); while ((k = getopt(argc, argv, "sn")) != -1) { 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++]); assert(count >= 0); } 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) { short bg = COLOR_BLACK; start_color(); #if HAVE_USE_DEFAULT_COLORS if (use_default_colors() == OK) bg = -1; #endif init_pair(PAIR_DIGITS, COLOR_BLACK, COLOR_RED); init_pair(PAIR_OTHERS, COLOR_RED, bg); init_pair(PAIR_FRAMES, COLOR_WHITE, bg); (void) attrset((attr_t) COLOR_PAIR(PAIR_OTHERS)); } restart: for (j = 0; j < 5; j++) older[j] = newer[j] = next[j] = 0; clear(); drawbox(FALSE); do { char buf[40]; 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(TRUE); 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 work 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 -T.Dickey */ if (scrol) napms(85); } } } /* this depends on the detailed format of ctime(3) */ (void) strncpy(buf, ctime(&now), 30); (void) strcpy(buf + 10, buf + 19); MvAddStr(16, 30, buf); move(6, 0); drawbox(FALSE); 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) { (void) standend(); endwin(); fprintf(stderr, "gdc terminated by signal %d\n", sigtermed); ExitProgram(EXIT_FAILURE); } /* FALLTHRU */ default: continue; } } while (--count); (void) standend(); endwin(); ExitProgram(EXIT_SUCCESS); }
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