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ttyclock.c
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ttyclock.c
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/*
* TTY-CLOCK Main file.
* Copyright © 2009-2018 tty-clock contributors
* Copyright © 2008 Martin Duquesnoy <[email protected]>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of the nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "ttyclock.h"
void
init(void)
{
struct sigaction sig;
setlocale(LC_TIME,"");
ttyclock.bg = COLOR_BLACK;
/* Init ncurses */
if (ttyclock.tty) {
FILE *ftty = fopen(ttyclock.tty, "r+");
if (!ftty) {
fprintf(stderr, "tty-clock: error: '%s' couldn't be opened: %s.\n",
ttyclock.tty, strerror(errno));
exit(EXIT_FAILURE);
}
ttyclock.ttyscr = newterm(NULL, ftty, ftty);
assert(ttyclock.ttyscr != NULL);
set_term(ttyclock.ttyscr);
} else
initscr();
cbreak();
noecho();
keypad(stdscr, true);
start_color();
curs_set(false);
clear();
/* Init default terminal color */
if(use_default_colors() == OK)
ttyclock.bg = -1;
/* Init color pair */
init_pair(0, ttyclock.bg, ttyclock.bg);
init_pair(1, ttyclock.bg, ttyclock.option.color);
init_pair(2, ttyclock.option.color, ttyclock.bg);
// init_pair(0, ttyclock.bg, ttyclock.bg);
// init_pair(1, ttyclock.bg, ttyclock.option.color);
// init_pair(2, ttyclock.option.color, ttyclock.bg);
refresh();
/* Init signal handler */
sig.sa_handler = signal_handler;
sig.sa_flags = 0;
sigaction(SIGTERM, &sig, NULL);
sigaction(SIGINT, &sig, NULL);
sigaction(SIGSEGV, &sig, NULL);
/* Init global struct */
ttyclock.running = true;
if(!ttyclock.geo.x)
ttyclock.geo.x = 0;
if(!ttyclock.geo.y)
ttyclock.geo.y = 0;
if(!ttyclock.geo.a)
ttyclock.geo.a = 1;
if(!ttyclock.geo.b)
ttyclock.geo.b = 1;
ttyclock.geo.w = (ttyclock.option.second) ? SECFRAMEW : NORMFRAMEW;
ttyclock.geo.h = 7;
ttyclock.tm = localtime(&(ttyclock.lt));
if(ttyclock.option.utc) {
ttyclock.tm = gmtime(&(ttyclock.lt));
}
ttyclock.lt = time(NULL);
update_hour();
/* Create clock win */
ttyclock.framewin = newwin(ttyclock.geo.h,
ttyclock.geo.w,
ttyclock.geo.x,
ttyclock.geo.y);
if(ttyclock.option.box) {
box(ttyclock.framewin, 0, 0);
}
if (ttyclock.option.bold)
{
wattron(ttyclock.framewin, A_BLINK);
}
/* Create the date win */
ttyclock.datewin = newwin(DATEWINH, strlen(ttyclock.date.datestr) + 2,
ttyclock.geo.x + ttyclock.geo.h - 1,
ttyclock.geo.y + (ttyclock.geo.w / 2) -
(strlen(ttyclock.date.datestr) / 2) - 1);
if(ttyclock.option.box && ttyclock.option.date) {
box(ttyclock.datewin, 0, 0);
}
clearok(ttyclock.datewin, true);
set_center(ttyclock.option.center);
nodelay(stdscr, true);
if (ttyclock.option.date)
{
wrefresh(ttyclock.datewin);
}
wrefresh(ttyclock.framewin);
return;
}
void
signal_handler(int signal)
{
switch(signal)
{
case SIGINT:
case SIGTERM:
ttyclock.running = false;
break;
/* Segmentation fault signal */
case SIGSEGV:
endwin();
fprintf(stderr, "Segmentation fault.\n");
exit(EXIT_FAILURE);
break;
}
return;
}
void
cleanup(void)
{
if (ttyclock.ttyscr)
delscreen(ttyclock.ttyscr);
free(ttyclock.tty);
}
void
update_hour(void)
{
int ihour;
char tmpstr[128];
ttyclock.lt = time(NULL);
ttyclock.tm = localtime(&(ttyclock.lt));
if(ttyclock.option.utc) {
ttyclock.tm = gmtime(&(ttyclock.lt));
}
ihour = ttyclock.tm->tm_hour;
if(ttyclock.option.twelve)
ttyclock.meridiem = ((ihour >= 12) ? PMSIGN : AMSIGN);
else
ttyclock.meridiem = "\0";
/* Manage hour for twelve mode */
ihour = ((ttyclock.option.twelve && ihour > 12) ? (ihour - 12) : ihour);
ihour = ((ttyclock.option.twelve && !ihour) ? 12 : ihour);
/* Set hour */
ttyclock.date.hour[0] = ihour / 10;
ttyclock.date.hour[1] = ihour % 10;
/* Set minutes */
ttyclock.date.minute[0] = ttyclock.tm->tm_min / 10;
ttyclock.date.minute[1] = ttyclock.tm->tm_min % 10;
/* Set date string */
strcpy(ttyclock.date.old_datestr, ttyclock.date.datestr);
strftime(tmpstr,
sizeof(tmpstr),
ttyclock.option.format,
ttyclock.tm);
sprintf(ttyclock.date.datestr, "%s%s", tmpstr, ttyclock.meridiem);
/* Set seconds */
ttyclock.date.second[0] = ttyclock.tm->tm_sec / 10;
ttyclock.date.second[1] = ttyclock.tm->tm_sec % 10;
return;
}
void
draw_number(int n, int x, int y)
{
int i, sy = y;
for(i = 0; i < 30; ++i, ++sy)
{
if(sy == y + 6)
{
sy = y;
++x;
}
if (ttyclock.option.bold)
wattron(ttyclock.framewin, A_BLINK);
else
wattroff(ttyclock.framewin, A_BLINK);
wbkgdset(ttyclock.framewin, COLOR_PAIR(number[n][i/2]));
mvwaddch(ttyclock.framewin, x, sy, ' ');
}
wrefresh(ttyclock.framewin);
return;
}
void
draw_clock(void)
{
if (ttyclock.option.date && !ttyclock.option.rebound &&
strcmp(ttyclock.date.datestr, ttyclock.date.old_datestr) != 0)
{
clock_move(ttyclock.geo.x,
ttyclock.geo.y,
ttyclock.geo.w,
ttyclock.geo.h);
}
/* Draw hour numbers */
draw_number(ttyclock.date.hour[0], 1, 1);
draw_number(ttyclock.date.hour[1], 1, 8);
chtype dotcolor = COLOR_PAIR(1);
if (ttyclock.option.blink && time(NULL) % 2 == 0)
dotcolor = COLOR_PAIR(2);
/* 2 dot for number separation */
wbkgdset(ttyclock.framewin, dotcolor);
mvwaddstr(ttyclock.framewin, 2, 16, " ");
mvwaddstr(ttyclock.framewin, 4, 16, " ");
/* Draw minute numbers */
draw_number(ttyclock.date.minute[0], 1, 20);
draw_number(ttyclock.date.minute[1], 1, 27);
/* Draw the date */
if (ttyclock.option.bold)
wattron(ttyclock.datewin, A_BOLD);
else
wattroff(ttyclock.datewin, A_BOLD);
if (ttyclock.option.date)
{
wbkgdset(ttyclock.datewin, (COLOR_PAIR(2)));
mvwprintw(ttyclock.datewin, (DATEWINH / 2), 1, "%s", ttyclock.date.datestr);
wrefresh(ttyclock.datewin);
}
/* Draw second if the option is enabled */
if(ttyclock.option.second)
{
/* Again 2 dot for number separation */
wbkgdset(ttyclock.framewin, dotcolor);
mvwaddstr(ttyclock.framewin, 2, NORMFRAMEW, " ");
mvwaddstr(ttyclock.framewin, 4, NORMFRAMEW, " ");
/* Draw second numbers */
draw_number(ttyclock.date.second[0], 1, 39);
draw_number(ttyclock.date.second[1], 1, 46);
}
return;
}
void
clock_move(int x, int y, int w, int h)
{
/* Erase border for a clean move */
wbkgdset(ttyclock.framewin, COLOR_PAIR(0));
wborder(ttyclock.framewin, ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ');
werase(ttyclock.framewin);
wrefresh(ttyclock.framewin);
if (ttyclock.option.date)
{
wbkgdset(ttyclock.datewin, COLOR_PAIR(0));
wborder(ttyclock.datewin, ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ');
werase(ttyclock.datewin);
wrefresh(ttyclock.datewin);
}
/* Frame win move */
mvwin(ttyclock.framewin, (ttyclock.geo.x = x), (ttyclock.geo.y = y));
wresize(ttyclock.framewin, (ttyclock.geo.h = h), (ttyclock.geo.w = w));
/* Date win move */
if (ttyclock.option.date)
{
mvwin(ttyclock.datewin,
ttyclock.geo.x + ttyclock.geo.h - 1,
ttyclock.geo.y + (ttyclock.geo.w / 2) - (strlen(ttyclock.date.datestr) / 2) - 1);
wresize(ttyclock.datewin, DATEWINH, strlen(ttyclock.date.datestr) + 2);
if (ttyclock.option.box) {
box(ttyclock.datewin, 0, 0);
}
}
if (ttyclock.option.box)
{
box(ttyclock.framewin, 0, 0);
}
wrefresh(ttyclock.framewin);
wrefresh(ttyclock.datewin);
return;
}
/* Useless but fun :) */
void
clock_rebound(void)
{
if(!ttyclock.option.rebound)
return;
if(ttyclock.geo.x < 1)
ttyclock.geo.a = 1;
if(ttyclock.geo.x > (LINES - ttyclock.geo.h - DATEWINH))
ttyclock.geo.a = -1;
if(ttyclock.geo.y < 1)
ttyclock.geo.b = 1;
if(ttyclock.geo.y > (COLS - ttyclock.geo.w - 1))
ttyclock.geo.b = -1;
clock_move(ttyclock.geo.x + ttyclock.geo.a,
ttyclock.geo.y + ttyclock.geo.b,
ttyclock.geo.w,
ttyclock.geo.h);
return;
}
void
set_second(void)
{
int new_w = (((ttyclock.option.second = !ttyclock.option.second)) ? SECFRAMEW : NORMFRAMEW);
int y_adj;
for(y_adj = 0; (ttyclock.geo.y - y_adj) > (COLS - new_w - 1); ++y_adj);
clock_move(ttyclock.geo.x, (ttyclock.geo.y - y_adj), new_w, ttyclock.geo.h);
set_center(ttyclock.option.center);
return;
}
void
set_center(bool b)
{
if((ttyclock.option.center = b))
{
ttyclock.option.rebound = false;
clock_move((LINES / 2 - (ttyclock.geo.h / 2)),
(COLS / 2 - (ttyclock.geo.w / 2)),
ttyclock.geo.w,
ttyclock.geo.h);
}
return;
}
void
set_box(bool b)
{
ttyclock.option.box = b;
wbkgdset(ttyclock.framewin, COLOR_PAIR(0));
wbkgdset(ttyclock.datewin, COLOR_PAIR(0));
if(ttyclock.option.box) {
wbkgdset(ttyclock.framewin, COLOR_PAIR(0));
wbkgdset(ttyclock.datewin, COLOR_PAIR(0));
box(ttyclock.framewin, 0, 0);
box(ttyclock.datewin, 0, 0);
}
else {
wborder(ttyclock.framewin, ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ');
wborder(ttyclock.datewin, ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ');
}
wrefresh(ttyclock.datewin);
wrefresh(ttyclock.framewin);
}
void
key_event(void)
{
int i, c;
struct timespec length = { ttyclock.option.delay, ttyclock.option.nsdelay };
fd_set rfds;
FD_ZERO(&rfds);
FD_SET(STDIN_FILENO, &rfds);
if (ttyclock.option.screensaver)
{
c = wgetch(stdscr);
if(c != ERR && ttyclock.option.noquit == false)
{
ttyclock.running = false;
}
else
{
nanosleep(&length, NULL);
for(i = 0; i < 8; ++i)
if(c == (i + '0'))
{
ttyclock.option.color = i;
init_pair(1, ttyclock.bg, i);
init_pair(2, i, ttyclock.bg);
}
}
return;
}
switch(c = wgetch(stdscr))
{
case KEY_RESIZE:
endwin();
init();
break;
case KEY_UP:
case 'k':
case 'K':
if(ttyclock.geo.x >= 1
&& !ttyclock.option.center)
clock_move(ttyclock.geo.x - 1, ttyclock.geo.y, ttyclock.geo.w, ttyclock.geo.h);
break;
case KEY_DOWN:
case 'j':
case 'J':
if(ttyclock.geo.x <= (LINES - ttyclock.geo.h - DATEWINH)
&& !ttyclock.option.center)
clock_move(ttyclock.geo.x + 1, ttyclock.geo.y, ttyclock.geo.w, ttyclock.geo.h);
break;
case KEY_LEFT:
case 'h':
case 'H':
if(ttyclock.geo.y >= 1
&& !ttyclock.option.center)
clock_move(ttyclock.geo.x, ttyclock.geo.y - 1, ttyclock.geo.w, ttyclock.geo.h);
break;
case KEY_RIGHT:
case 'l':
case 'L':
if(ttyclock.geo.y <= (COLS - ttyclock.geo.w - 1)
&& !ttyclock.option.center)
clock_move(ttyclock.geo.x, ttyclock.geo.y + 1, ttyclock.geo.w, ttyclock.geo.h);
break;
case 'q':
case 'Q':
if (ttyclock.option.noquit == false)
ttyclock.running = false;
break;
case 's':
case 'S':
set_second();
break;
case 't':
case 'T':
ttyclock.option.twelve = !ttyclock.option.twelve;
/* Set the new ttyclock.date.datestr to resize date window */
update_hour();
clock_move(ttyclock.geo.x, ttyclock.geo.y, ttyclock.geo.w, ttyclock.geo.h);
break;
case 'c':
case 'C':
set_center(!ttyclock.option.center);
break;
case 'b':
case 'B':
ttyclock.option.bold = !ttyclock.option.bold;
break;
case 'r':
case 'R':
ttyclock.option.rebound = !ttyclock.option.rebound;
if(ttyclock.option.rebound && ttyclock.option.center)
ttyclock.option.center = false;
break;
case 'x':
case 'X':
set_box(!ttyclock.option.box);
break;
case '0': case '1': case '2': case '3':
case '4': case '5': case '6': case '7':
i = c - '0';
ttyclock.option.color = i;
init_pair(1, ttyclock.bg, i);
init_pair(2, i, ttyclock.bg);
break;
default:
pselect(1, &rfds, NULL, NULL, &length, NULL);
}
return;
}
int
main(int argc, char **argv)
{
int c;
/* Alloc ttyclock */
memset(&ttyclock, 0, sizeof(ttyclock_t));
ttyclock.option.date = true;
/* Default date format */
strncpy(ttyclock.option.format, "%F", sizeof (ttyclock.option.format));
/* Default color */
ttyclock.option.color = COLOR_GREEN; /* COLOR_GREEN = 2 */
/* Default delay */
ttyclock.option.delay = 1; /* 1FPS */
ttyclock.option.nsdelay = 0; /* -0FPS */
ttyclock.option.blink = false;
atexit(cleanup);
while ((c = getopt(argc, argv, "iuvsScbtrhBxnDC:f:d:T:a:")) != -1)
{
switch(c)
{
case 'h':
default:
printf("usage : tty-clock [-iuvsScbtrahDBxn] [-C [0-7]] [-f format] [-d delay] [-a nsdelay] [-T tty] \n"
" -s Show seconds \n"
" -S Screensaver mode \n"
" -x Show box \n"
" -c Set the clock at the center of the terminal \n"
" -C [0-7] Set the clock color \n"
" -b Use bold colors \n"
" -t Set the hour in 12h format \n"
" -u Use UTC time \n"
" -T tty Display the clock on the specified terminal \n"
" -r Do rebound the clock \n"
" -f format Set the date format \n"
" -n Don't quit on keypress \n"
" -v Show tty-clock version \n"
" -i Show some info about tty-clock \n"
" -h Show this page \n"
" -D Hide date \n"
" -B Enable blinking colon \n"
" -d delay Set the delay between two redraws of the clock. Default 1s. \n"
" -a nsdelay Additional delay between two redraws in nanoseconds. Default 0ns.\n");
exit(EXIT_SUCCESS);
break;
case 'i':
puts("TTY-Clock 2 © by Martin Duquesnoy ([email protected]), Grey ([email protected])");
exit(EXIT_SUCCESS);
break;
case 'u':
ttyclock.option.utc = true;
break;
case 'v':
puts("TTY-Clock 2 © devel version");
exit(EXIT_SUCCESS);
break;
case 's':
ttyclock.option.second = true;
break;
case 'S':
ttyclock.option.screensaver = true;
break;
case 'c':
ttyclock.option.center = true;
break;
case 'b':
ttyclock.option.bold = true;
break;
case 'C':
if(atoi(optarg) >= 0 && atoi(optarg) < 8)
ttyclock.option.color = atoi(optarg);
break;
case 't':
ttyclock.option.twelve = true;
break;
case 'r':
ttyclock.option.rebound = true;
break;
case 'f':
strncpy(ttyclock.option.format, optarg, 100);
break;
case 'd':
if(atol(optarg) >= 0 && atol(optarg) < 100)
ttyclock.option.delay = atol(optarg);
break;
case 'D':
ttyclock.option.date = false;
break;
case 'B':
ttyclock.option.blink = true;
break;
case 'a':
if(atol(optarg) >= 0 && atol(optarg) < 1000000000)
ttyclock.option.nsdelay = atol(optarg);
break;
case 'x':
ttyclock.option.box = true;
break;
case 'T': {
struct stat sbuf;
if (stat(optarg, &sbuf) == -1) {
fprintf(stderr, "tty-clock: error: couldn't stat '%s': %s.\n",
optarg, strerror(errno));
exit(EXIT_FAILURE);
} else if (!S_ISCHR(sbuf.st_mode)) {
fprintf(stderr, "tty-clock: error: '%s' doesn't appear to be a character device.\n",
optarg);
exit(EXIT_FAILURE);
} else {
free(ttyclock.tty);
ttyclock.tty = strdup(optarg);
}}
break;
case 'n':
ttyclock.option.noquit = true;
break;
}
}
init();
attron(A_BLINK);
while(ttyclock.running)
{
clock_rebound();
update_hour();
draw_clock();
key_event();
}
endwin();
return 0;
}
// vim: expandtab tabstop=5 softtabstop=5 shiftwidth=5