src/bin/modifiers.cpp

   1 /*
   2  * modifiers - asserts (un)pressed modifier keys
   3  * (c) 2002, Francois Revol, revol@free.fr
   4  * for OpenBeOS
   5  * compile with:
   6  * LDFLAGS=-lbe make modifiers
   7  */
   8
   9 #include <OS.h>
  10 #include <stdio.h>
  11 #include <string.h>
  12 #include <strings.h>
  13 #include <InterfaceDefs.h>
  14
  15
  16 int32 modifier_bits[] = {
  17         B_SHIFT_KEY,
  18         B_COMMAND_KEY,
  19         B_CONTROL_KEY,
  20         B_CAPS_LOCK,
  21         B_SCROLL_LOCK,
  22         B_NUM_LOCK,
  23         B_OPTION_KEY,
  24         B_MENU_KEY,
  25         B_LEFT_SHIFT_KEY,
  26         B_RIGHT_SHIFT_KEY,
  27         B_LEFT_COMMAND_KEY,
  28         B_RIGHT_COMMAND_KEY,
  29         B_LEFT_CONTROL_KEY,
  30         B_RIGHT_CONTROL_KEY,
  31         B_LEFT_OPTION_KEY,
  32         B_RIGHT_OPTION_KEY,
  33         0
  34 };
  35
  36
  37 const char *modifier_names[] = { "shift", "command", "control", "capslock", "scrolllock", "numlock", "option", "menu", "lshift", "rshift", "lcommand", "rcommand", "lcontrol", "rcontrol", "loption", "roption", NULL };
  38
  39
  40 int
  41 usage(char *progname, int error)
  42 {
  43         FILE *outstr;
  44         outstr = error?stderr:stdout;
  45         fprintf(outstr, "Usage: %s [-help] [-list] [-/+][[|l|r][shift|control|command|option]|capslock|scrolllock|numlock|menu]\n", progname);
  46         fprintf(outstr, "\t- asserts unpressed modifier,\n");
  47         fprintf(outstr, "\t+ asserts pressed modifier,\n");
  48         return error;
  49 }
  50
  51
  52 int
  53 list_modifiers(int mods)
  54 {
  55         int i;
  56         int gotone = 0;
  57         for (i=0; modifier_names[i]; i++) {
  58                 if (mods & modifier_bits[i]) {
  59                         if (gotone)
  60                                 printf(",");
  61                         gotone = 0;
  62                         printf("%s", modifier_names[i]);
  63                         gotone = 1;
  64                 }
  65                 if (modifier_names[i+1] == NULL)
  66                         printf("\n");
  67         }
  68         return 0;
  69 }
  70
  71
  72 int
  73 main(int argc, char **argv)
  74 {
  75         int32 mods;
  76         int32 mask_xor = 0x0;
  77         int32 mask_and = 0x0;
  78         int i, j;
  79
  80         mods = modifiers();
  81         if (argc == 1)
  82                 return usage(argv[0], 1);
  83         for (i=1; i<argc; i++) {
  84                 if (!strncmp(argv[i], "-h", 2))
  85                         return usage(argv[0], 0);
  86                 else if (!strcmp(argv[i], "-list"))
  87                         return list_modifiers(mods);
  88                 else if (strlen(argv[i]) > 1 && (*argv[i] == '-' || *argv[i] ==  '+')) {
  89                         for (j=0; modifier_names[j]; j++) {
  90                                 if (!strcmp(argv[i]+1, modifier_names[j])) {
  91                                         if (*argv[i] == '-')
  92                                                 mask_and |= modifier_bits[j];
  93                                         else
  94                                                 mask_xor |= modifier_bits[j];
  95                                         break;
  96                                 }
  97                         }
  98                         if (modifier_names[j] == NULL)
  99                                 return usage(argv[0], 1);
 100                 } else
 101                         return usage(argv[0], 1);
 102         }
 103         mask_and |= mask_xor;
 104         return (((mods & mask_and) ^ mask_xor) != 0);
 105 }
 106