git.mutantstargoat.com Git - oftp/blob - src/dos/input.c

   1 #include <conio.h>
   2 #include "input.h"
   3
   4 int init_input(void)
   5 {
   6         return 0;
   7 }
   8
   9 void cleanup_input(void)
  10 {
  11 }
  12
  13 static int conv_special(int key)
  14 {
  15         switch(key) {
  16         case 72:
  17                 return KB_UP;
  18         case 80:
  19                 return KB_DOWN;
  20         case 75:
  21                 return KB_LEFT;
  22         case 77:
  23                 return KB_RIGHT;
  24         case 71:
  25                 return KB_HOME;
  26         case 79:
  27                 return KB_END;
  28         case 82:
  29                 return KB_INS;
  30         case 83:
  31                 return KB_DEL;
  32         case 73:
  33                 return KB_PGUP;
  34         case 81:
  35                 return KB_PGDN;
  36         default:
  37                 break;
  38         }
  39
  40         if(key >= 58 && key <= 70) {
  41                 return KB_F1 + (key - 59);
  42         }
  43
  44         return -1;
  45 }
  46
  47 int poll_input(union event *ev)
  48 {
  49         static int special;
  50
  51         if(have_input()) {
  52                 ev->type = EV_KEY;
  53                 if((ev->key.key = getch()) == 0) {
  54                         special = 1;
  55                         return 0;
  56                 }
  57
  58                 if(special) {
  59                         special = 0;
  60                         if((ev->key.key = conv_special(ev->key.key)) == -1) {
  61                                 return 0;
  62                         }
  63                 } else {
  64                         if(ev->key.key == '\r') {
  65                                 ev->key.key = '\n';
  66                         }
  67                 }
  68                 return 1;
  69         }
  70         return 0;
  71 }
  72
  73 int have_input(void)
  74 {
  75         return kbhit();
  76 }