Add a few curses examples.

share/examples/curses/timer.c

@@ -0,0 +1,81 @@
+#include <curses.h>
+#include <signal.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <time.h>
+
+#define centered(y,str) mvaddstr(y, (COLS - strlen(str))/2, str)
+
+void die()
+{
+    alarm(0);
+    signal(SIGINT, SIG_IGN);
+    signal(SIGQUIT, SIG_IGN);
+    signal(SIGHUP, SIG_IGN);
+    signal(SIGTERM, SIG_IGN);
+    clear();
+    refresh();
+    endwin();
+    exit(0);
+}
+
+int main(int ac, char **av)
+{
+    int     move_col,
+            msec;
+    int     time_line,
+            move_line;
+    long    num_start_time,
+            num_now_time;
+    char    str_start_time[60],
+            str_now_time[60];
+
+    msec = 0;
+    if (ac > 1) {
+        msec = atoi(av[1]);
+	if (msec < 10)
+	    msec = 10;
+	else if (msec > 1000)
+	    msec = 1000;
+    }
+    if (! initscr())
+	exit(1);
+
+    signal(SIGINT, die);
+    signal(SIGQUIT, die);
+    signal(SIGHUP, die);
+    signal(SIGTERM, die);
+
+    box(stdscr, '*', '*');
+
+    time(&num_start_time);
+    strcpy(str_start_time, ctime(&num_start_time));
+    *(index(str_start_time, '\n')) = '\0';
+
+    centered(3, "*** Test started at: ***");
+    centered(4, str_start_time);
+
+    move_col = 1;
+    move_line = (LINES - 2) / 2;
+    time_line = move_line + (LINES - move_line - 1) / 2;
+
+    while (TRUE) {
+	time(&num_now_time);
+	strcpy(str_now_time, ctime(&num_now_time));
+	*(index(str_now_time, '\n')) = '\0';
+
+	centered(time_line, str_now_time);
+
+	mvaddstr(move_line, move_col, "<-*->");
+
+	refresh();
+
+	mvaddstr(move_line, move_col, "     ");
+	if (++move_col >= (COLS - 6))
+	    move_col = 1;
+
+	if (msec)
+	    usleep(msec * 1000);
+    }
+}