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

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  28 /*
  29  * $Id: demo_altkeys.c,v 1.9 2010/11/14 00:59:26 tom Exp $
  30  *
  31  * Demonstrate the define_key() function.
  32  * Thomas Dickey - 2005/10/22
  33  */
  34
  35 #include <test.priv.h>
  36
  37 #if defined(NCURSES_VERSION) && NCURSES_EXT_FUNCS
  38
  39 #if TIME_WITH_SYS_TIME
  40 # include <sys/time.h>
  41 # include <time.h>
  42 #else
  43 # if HAVE_SYS_TIME_H
  44 #  include <sys/time.h>
  45 # else
  46 #  include <time.h>
  47 # endif
  48 #endif
  49
  50 #define MY_LOGFILE "demo_altkeys.log"
  51 #define MY_KEYS (KEY_MAX + 1)
  52
  53 /*
  54  * Log the most recently-written line to our logfile
  55  */
  56 static void
  57 log_last_line(WINDOW *win)
  58 {
  59     FILE *fp;
  60     int y, x, n;
  61     char temp[256];
  62
  63     if ((fp = fopen(MY_LOGFILE, "a")) != 0) {
  64         int need = sizeof(temp) - 1;
  65         if (need > COLS)
  66             need = COLS;
  67         getyx(win, y, x);
  68         wmove(win, y - 1, 0);
  69         n = winnstr(win, temp, need);
  70         while (n-- > 0) {
  71             if (isspace(UChar(temp[n])))
  72                 temp[n] = '\0';
  73             else
  74                 break;
  75         }
  76         wmove(win, y, x);
  77         fprintf(fp, "%s\n", temp);
  78         fclose(fp);
  79     }
  80 }
  81
  82 int
  83 main(int argc GCC_UNUSED, char *argv[]GCC_UNUSED)
  84 {
  85     int n;
  86     int ch;
  87 #if HAVE_GETTIMEOFDAY
  88     int secs, msecs;
  89     struct timeval current, previous;
  90 #endif
  91
  92     unlink(MY_LOGFILE);
  93
  94     newterm(0, stdout, stdin);
  95     (void) cbreak();            /* take input chars one at a time, no wait for \n */
  96     (void) noecho();            /* don't echo input */
  97
  98     scrollok(stdscr, TRUE);
  99     keypad(stdscr, TRUE);
 100     move(0, 0);
 101
 102     /* we do the define_key() calls after keypad(), since the first call to
 103      * keypad() initializes the corresponding data.
 104      */
 105     for (n = 0; n < 255; ++n) {
 106         char temp[10];
 107         sprintf(temp, "\033%c", n);
 108         define_key(temp, n + MY_KEYS);
 109     }
 110     for (n = KEY_MIN; n < KEY_MAX; ++n) {
 111         char *value;
 112         if ((value = keybound(n, 0)) != 0) {
 113             char *temp = typeMalloc(char, strlen(value) + 2);
 114             sprintf(temp, "\033%s", value);
 115             define_key(temp, n + MY_KEYS);
 116             free(temp);
 117             free(value);
 118         }
 119     }
 120
 121 #if HAVE_GETTIMEOFDAY
 122     gettimeofday(&previous, 0);
 123 #endif
 124
 125     while ((ch = getch()) != ERR) {
 126         bool escaped = (ch >= MY_KEYS);
 127         const char *name = keyname(escaped ? (ch - MY_KEYS) : ch);
 128
 129 #if HAVE_GETTIMEOFDAY
 130         gettimeofday(&current, 0);
 131         secs = (int) (current.tv_sec - previous.tv_sec);
 132         msecs = (int) ((current.tv_usec - previous.tv_usec) / 1000);
 133         if (msecs < 0) {
 134             msecs += 1000;
 135             --secs;
 136         }
 137         if (msecs >= 1000) {
 138             secs += msecs / 1000;
 139             msecs %= 1000;
 140         }
 141         printw("%6d.%03d ", secs, msecs);
 142         previous = current;
 143 #endif
 144         printw("Keycode %d, name %s%s\n",
 145                ch,
 146                escaped ? "ESC-" : "",
 147                name != 0 ? name : "<null>");
 148         log_last_line(stdscr);
 149         clrtoeol();
 150         if (ch == 'q')
 151             break;
 152     }
 153     endwin();
 154     ExitProgram(EXIT_SUCCESS);
 155 }
 156 #else
 157 int
 158 main(void)
 159 {
 160     printf("This program requires the ncurses library\n");
 161     ExitProgram(EXIT_FAILURE);
 162 }
 163 #endif