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/* Copyright (c) 2000 Lars Bernhardsson, see README for licence details */
/*
* Minimal clock app for larswm. No fork()/exec() is done, it updates
* the status bar by setting the LARSWM_BARTEXT atom every second.
*/
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <time.h>
#ifdef USE_LOCALE
#include <locale.h>
#endif
#include <X11/X.h>
#include <X11/Xos.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xatom.h>
#define CLOCK_LENGTH 100
int
main (int argc, char **argv)
{
int i;
time_t t;
char *slist;
char *format = "%c";
char *display_string = "";
Display *dpy;
Atom bartext_larswm;
XTextProperty pr;
#ifdef USE_LOCALE
setlocale (LC_ALL, "");
#endif
for (i = 1; i < argc; i++)
{
if (strcmp (argv[i], "-display") == 0 && i + 1 < argc)
{
display_string = argv[++i];
}
else if (strcmp (argv[i], "-format") == 0 && i + 1 < argc)
{
format = argv[++i];
}
else
{
fprintf (stderr, "usage: %s [-display display] [-format format]\n",
argv[0]);
exit (1);
}
}
dpy = XOpenDisplay (display_string);
if (dpy == 0)
{
perror ("XOpenDisplay");
exit (1);
}
bartext_larswm = XInternAtom (dpy, "LARSWM_BARTEXT", False);
slist = malloc (CLOCK_LENGTH);
while (1)
{
time (&t);
strftime (slist, CLOCK_LENGTH, format, localtime (&t));
XStringListToTextProperty (&slist, 1, &pr);
XSetTextProperty (dpy, DefaultRootWindow (dpy), &pr, bartext_larswm);
XFree (pr.value);
XSync (dpy, False);
sleep (1);
}
}
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