release/src/router/libncurses/test/dots_mvcur.c

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  28
  29 /*
  30  * Author: Thomas E. Dickey - 2007
  31  *
  32  * $Id: dots_mvcur.c,v 1.10 2013/09/28 22:44:18 tom Exp $
  33  *
  34  * A simple demo of the terminfo interface, and mvcur.
  35  */
  36 #define USE_TINFO
  37 #include <test.priv.h>
  38
  39 #if HAVE_SETUPTERM
  40
  41 #include <time.h>
  42
  43 #define valid(s) ((s != 0) && s != (char *)-1)
  44
  45 static bool interrupted = FALSE;
  46 static long total_chars = 0;
  47 static time_t started;
  48
  49 static
  50 TPUTS_PROTO(outc, c)
  51 {
  52     int rc = c;
  53
  54     if (interrupted) {
  55         char tmp = (char) c;
  56         if (write(STDOUT_FILENO, &tmp, (size_t) 1) == -1)
  57             rc = EOF;
  58     } else {
  59         if (putc(c, stdout) == EOF)
  60             rc = EOF;
  61     }
  62     TPUTS_RETURN(rc);
  63 }
  64
  65 static bool
  66 outs(const char *s)
  67 {
  68     if (valid(s)) {
  69         tputs(s, 1, outc);
  70         return TRUE;
  71     }
  72     return FALSE;
  73 }
  74
  75 static void
  76 cleanup(void)
  77 {
  78     outs(exit_attribute_mode);
  79     if (!outs(orig_colors))
  80         outs(orig_pair);
  81     outs(clear_screen);
  82     outs(cursor_normal);
  83
  84     printf("\n\n%ld total chars, rate %.2f/sec\n",
  85            total_chars,
  86            ((double) (total_chars) / (double) (time((time_t *) 0) - started)));
  87 }
  88
  89 static void
  90 onsig(int n GCC_UNUSED)
  91 {
  92     interrupted = TRUE;
  93 }
  94
  95 static double
  96 ranf(void)
  97 {
  98     long r = (rand() & 077777);
  99     return ((double) r / 32768.);
 100 }
 101
 102 int
 103 main(int argc GCC_UNUSED,
 104      char *argv[]GCC_UNUSED)
 105 {
 106     int x0 = 1, y0 = 1;
 107     int x, y, z, p;
 108     double r;
 109     double c;
 110     SCREEN *sp;
 111     int my_colors;
 112
 113     CATCHALL(onsig);
 114
 115     srand((unsigned) time(0));
 116     sp = newterm((char *) 0, stdout, stdin);
 117     outs(clear_screen);
 118     outs(cursor_home);
 119     outs(cursor_invisible);
 120     my_colors = max_colors;
 121     if (my_colors > 1) {
 122         if (!valid(set_a_foreground)
 123             || !valid(set_a_background)
 124             || (!valid(orig_colors) && !valid(orig_pair)))
 125             my_colors = -1;
 126     }
 127
 128     r = (double) (lines - 4);
 129     c = (double) (columns - 4);
 130     started = time((time_t *) 0);
 131
 132     while (!interrupted) {
 133         x = (int) (c * ranf()) + 2;
 134         y = (int) (r * ranf()) + 2;
 135         p = (ranf() > 0.9) ? '*' : ' ';
 136
 137         if (mvcur(y0, x0, y, x) != ERR) {
 138             x0 = x;
 139             y0 = y;
 140         }
 141
 142         if (my_colors > 0) {
 143             z = (int) (ranf() * my_colors);
 144             if (ranf() > 0.01) {
 145                 tputs(tparm2(set_a_foreground, z), 1, outc);
 146             } else {
 147                 tputs(tparm2(set_a_background, z), 1, outc);
 148                 napms(1);
 149             }
 150         } else if (valid(exit_attribute_mode)
 151                    && valid(enter_reverse_mode)) {
 152             if (ranf() <= 0.01) {
 153                 outs((ranf() > 0.6)
 154                      ? enter_reverse_mode
 155                      : exit_attribute_mode);
 156                 napms(1);
 157             }
 158         }
 159         outc(p);
 160         ++x0;
 161         fflush(stdout);
 162         ++total_chars;
 163     }
 164     cleanup();
 165     endwin();
 166     delscreen(sp);
 167     ExitProgram(EXIT_SUCCESS);
 168 }
 169 #else
 170 int
 171 main(int argc GCC_UNUSED,
 172      char *argv[]GCC_UNUSED)
 173 {
 174     fprintf(stderr, "This program requires terminfo\n");
 175     exit(EXIT_FAILURE);
 176 }
 177 #endif