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31 * Author: Thomas E. Dickey
33 * $Id: dots_curses.c,v 1.16 2020/02/02 23:34:34 tom Exp $
35 * A simple demo of the curses interface used for comparison with termcap.
37 #include <test.priv.h>
45 static bool interrupted = FALSE;
46 static long total_chars = 0;
47 static time_t started;
54 printf("\n\n%ld total cells, rate %.2f/sec\n",
56 ((double) (total_chars) / (double) (time((time_t *) 0) - started)));
60 onsig(int n GCC_UNUSED)
68 long r = (rand() & 077777);
69 return ((double) r / 32768.);
73 mypair(int fg, int bg)
75 int pair = (fg * COLORS) + bg;
76 return (pair >= COLOR_PAIRS) ? -1 : pair;
80 set_colors(int fg, int bg)
82 int pair = mypair(fg, bg);
84 attron(COLOR_PAIR(mypair(fg, bg)));
91 static const char *msg[] =
93 "Usage: dots_curses [options]"
96 ," -T TERM override $TERM"
97 #if HAVE_USE_DEFAULT_COLORS
98 ," -d invoke use_default_colors()"
101 ," -e allow environment $LINES / $COLUMNS"
103 ," -m SIZE set margin (default: 2)"
104 ," -s MSECS delay 1% of the time (default: 1 msecs)"
108 for (n = 0; n < SIZEOF(msg); n++)
109 fprintf(stderr, "%s\n", msg[n]);
111 ExitProgram(EXIT_FAILURE);
115 main(int argc, char *argv[])
121 #if HAVE_USE_DEFAULT_COLORS
122 bool d_option = FALSE;
129 while ((ch = getopt(argc, argv, "T:dem:s:")) != -1) {
132 need = 6 + strlen(optarg);
133 my_env = malloc(need);
134 _nc_SPRINTF(my_env, _nc_SLIMIT(need) "TERM=%s", optarg);
137 #if HAVE_USE_DEFAULT_COLORS
148 m_option = atoi(optarg);
151 s_option = atoi(optarg);
159 srand((unsigned) time(0));
161 InitAndCatch(initscr(), onsig);
164 #if HAVE_USE_DEFAULT_COLORS
166 use_default_colors();
168 for (fg = 0; fg < COLORS; fg++) {
169 for (bg = 0; bg < COLORS; bg++) {
173 ExitProgram(EXIT_FAILURE);
175 pair = mypair(fg, bg);
177 init_pair((short) pair, (short) fg, (short) bg);
182 r = (double) (LINES - (m_option * 2));
183 c = (double) (COLS - (m_option * 2));
184 started = time((time_t *) 0);
188 while (!interrupted) {
189 int x = (int) (c * ranf()) + m_option;
190 int y = (int) (r * ranf()) + m_option;
191 int p = (ranf() > 0.9) ? '*' : ' ';
195 int z = (int) (ranf() * COLORS);
197 set_colors(fg = z, bg);
198 attron(COLOR_PAIR(mypair(fg, bg)));
200 set_colors(fg, bg = z);
204 if (ranf() <= 0.01) {
218 ExitProgram(EXIT_SUCCESS);