src/xkbutils.c

   1 /* coded by Ketmar // Vampire Avalon (psyc://ketmar.no-ip.org/~Ketmar)
   2  * Understanding is not required. Only obedience.
   3  *
   4  * This program is free software. It comes without any warranty, to
   5  * the extent permitted by applicable law. You can redistribute it
   6  * and/or modify it under the terms of the Do What The Fuck You Want
   7  * To Public License, Version 2, as published by Sam Hocevar. See
   8  * http://sam.zoy.org/wtfpl/COPYING for more details.
   9  */
  10 #include "xkbutils.h"
  11
  12 #include <stdio.h>
  13 #include <stdlib.h>
  14 #include <string.h>
  15
  16 #include <X11/Xlib.h>
  17 #include <X11/XKBlib.h>
  18
  19
  20 ////////////////////////////////////////////////////////////////////////////////
  21 int activeLayout (Display *dpy) {
  22   XkbStateRec state;
  23   memset(&state, 0, sizeof(state));
  24   XkbGetState(dpy, XkbUseCoreKbd, &state);
  25   return (int)state.group;
  26 }
  27
  28
  29 void setActiveLayout (Display *dpy, int group) {
  30   XkbStateRec state;
  31   memset(&state, 0, sizeof(state));
  32   XkbLockGroup(dpy, XkbUseCoreKbd, group);
  33   // the following call is necessary
  34   XkbGetState(dpy, XkbUseCoreKbd, &state);
  35 }
  36
  37
  38 int layoutNames (Display *dpy, char *names[]) {
  39   XkbDescRec desc;
  40   int cnt;
  41   memset(&desc, 0, sizeof(desc));
  42   desc.device_spec = XkbUseCoreKbd;
  43   XkbGetControls(dpy, XkbGroupsWrapMask, &desc);
  44   XkbGetNames(dpy, XkbGroupNamesMask, &desc);
  45   cnt = (int)desc.ctrls->num_groups;
  46   XGetAtomNames(dpy, desc.names->groups, cnt, names);
  47   XkbFreeControls(&desc, XkbGroupsWrapMask, True);
  48   XkbFreeNames(&desc, XkbGroupNamesMask, True);
  49   return cnt;
  50 }
  51
  52
  53 void freeLayoutNames (char **names, int cnt) {
  54   for (; cnt > 0; ++names, --cnt) if (*names) { XFree(*names); *names = NULL; }
  55 }
  56
  57
  58 void printLayouts (Display *dpy) {
  59   char *names[XkbNumKbdGroups+1];
  60   int cnt = layoutNames(dpy, names);
  61   int active = activeLayout(dpy);
  62   for (int f = 0; f < cnt; ++f) printf("%d: %s%s\n", f, names[f], f==active?" (active)":"");
  63   freeLayoutNames(names, cnt);
  64 }
  65
  66
  67 int layoutCount (Display *dpy) {
  68   XkbDescRec desc[1];
  69   memset(desc, 0, sizeof(desc));
  70   desc->device_spec = XkbUseCoreKbd;
  71   XkbGetControls(dpy, XkbGroupsWrapMask, desc);
  72   return (int)desc->ctrls->num_groups;
  73 }