kc3-lang/libxkbcommon/src/misc.c

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• Hash : bc50cdd4
  Author :
  Date : 2012-06-05T18:46:24
  

  darray: some changes for convenience - Make darray_free also initialize the array back to an empty state, and stop worrying about it everywhere. - Add darray_mem, to access the underlying memory, which we do manually now using &darray_item(arr, 0). This makes a bit more clear when we actually mean to take the address of a specific item. - Add darray_copy, to make a deep copy of a darray. - Add darray_same, to test whether two darrays have the same underlying memory (e.g. if the struct itself was value copied). This should used where previously two arrays were compared for pointer equality. Signed-off-by: Ran Benita <ran234@gmail.com>

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• src/misc.c

• /************************************************************
  Copyright (c) 1993 by Silicon Graphics Computer Systems, Inc.
  
  Permission to use, copy, modify, and distribute this
  software and its documentation for any purpose and without
  fee is hereby granted, provided that the above copyright
  notice appear in all copies and that both that copyright
  notice and this permission notice appear in supporting
  documentation, and that the name of Silicon Graphics not be
  used in advertising or publicity pertaining to distribution
  of the software without specific prior written permission.
  Silicon Graphics makes no representation about the suitability
  of this software for any purpose. It is provided "as is"
  without any express or implied warranty.
  
  SILICON GRAPHICS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
  SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
  AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
  GRAPHICS BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
  DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
  DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
  OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION  WITH
  THE USE OR PERFORMANCE OF THIS SOFTWARE.
  
  ********************************************************/
  
  #include "xkb-priv.h"
  #include "alloc.h"
  
  static struct xkb_kt_map_entry map2Level[]= {
      {
          .active = true,
          .level = ShiftMask,
          .mods = {.mask = 1, .vmods = ShiftMask, .real_mods = 0 }
      }
  };
  
  static struct xkb_kt_map_entry mapAlpha[]= {
      {
          .active = true,
          .level = ShiftMask,
          .mods = { .mask = 1, .vmods = ShiftMask, .real_mods = 0 }
      },
      {
          .active = true,
          .level = LockMask,
          .mods = { .mask = 0, .vmods = LockMask,  .real_mods = 0 }
      }
  };
  
  static struct xkb_mods preAlpha[]= {
      { .mask = 0,        .vmods = 0,        .real_mods = 0 },
      { .mask = LockMask, .vmods = LockMask, .real_mods = 0 }
  };
  
  #define NL_VMOD_MASK 0
  static struct xkb_kt_map_entry mapKeypad[]= {
      {
          .active = true,
          .level = ShiftMask,
          .mods = { .mask = 1, .vmods = ShiftMask, .real_mods = 0 }
      },
      {
          .active = false,
          .level = 0,
          .mods = { .mask = 1, .vmods = 0, .real_mods = NL_VMOD_MASK }
      }
  };
  
  static const struct xkb_key_type canonicalTypes[XkbNumRequiredTypes] = {
      {
          .mods = { .mask = 0, .vmods = 0, .real_mods = 0 },
          .num_levels = 1,
          .preserve = NULL,
          .name = NULL,
          .level_names = NULL
      },
      {
          .mods = { .mask = ShiftMask, .vmods = ShiftMask, .real_mods = 0 },
          .num_levels = 2,
          .map = darray_lit(map2Level),
          .preserve = NULL,
          .name = NULL,
          .level_names = NULL
      },
      {
          .mods = { .mask = ShiftMask|LockMask, .vmods = ShiftMask|LockMask, .real_mods = 0 },
          .num_levels = 2,
          .map = darray_lit(mapAlpha),
          .preserve = preAlpha,
          .name = NULL,
          .level_names = NULL
      },
      {
          .mods = { .mask = ShiftMask, .vmods = ShiftMask, .real_mods = NL_VMOD_MASK },
          .num_levels = 2,
          .map = darray_lit(mapKeypad),
          .preserve = NULL,
          .name = NULL,
          .level_names = NULL
      }
  };
  
  int
  XkbcInitCanonicalKeyTypes(struct xkb_keymap *keymap, unsigned which,
                            int keypadVMod)
  {
      struct xkb_client_map * map;
      const struct xkb_key_type *from;
      int rtrn;
  
      if (!keymap)
          return BadMatch;
  
      rtrn = XkbcAllocClientMap(keymap, XkbKeyTypesMask, XkbNumRequiredTypes);
      if (rtrn != Success)
          return rtrn;
  
      map = keymap->map;
      if ((which & XkbAllRequiredTypes) == 0)
          return Success;
  
      rtrn = Success;
      from = canonicalTypes;
  
      if (which & XkbOneLevelMask)
          rtrn = XkbcCopyKeyType(&from[XkbOneLevelIndex],
                                 &darray_item(map->types, XkbOneLevelIndex));
  
      if ((which & XkbTwoLevelMask) && (rtrn == Success))
          rtrn = XkbcCopyKeyType(&from[XkbTwoLevelIndex],
                                 &darray_item(map->types, XkbTwoLevelIndex));
  
      if ((which & XkbAlphabeticMask) && (rtrn == Success))
          rtrn = XkbcCopyKeyType(&from[XkbAlphabeticIndex],
                                 &darray_item(map->types, XkbAlphabeticIndex));
  
      if ((which & XkbKeypadMask) && (rtrn == Success)) {
          struct xkb_key_type * type;
  
          rtrn = XkbcCopyKeyType(&from[XkbKeypadIndex],
                                 &darray_item(map->types, XkbKeypadIndex));
          type = &darray_item(map->types, XkbKeypadIndex);
  
          if ((keypadVMod >= 0) && (keypadVMod < XkbNumVirtualMods) &&
              (rtrn == Success)) {
              struct xkb_kt_map_entry *entry;
              type->mods.vmods = (1 << keypadVMod);
  
              entry = &darray_item(type->map, 0);
              entry->active = true;
              entry->mods.mask = ShiftMask;
              entry->mods.real_mods = ShiftMask;
              entry->mods.vmods = 0;
              entry->level = 1;
  
              entry = &darray_item(type->map, 1);
              entry->active = false;
              entry->mods.mask = 0;
              entry->mods.real_mods = 0;
              entry->mods.vmods = (1 << keypadVMod);
              entry->level = 1;
          }
      }
  
      return Success;
  }
  
  unsigned
  _XkbcKSCheckCase(xkb_keysym_t ks)
  {
      unsigned set = (ks & (~0xff)) >> 8;
      unsigned rtrn = 0;
  
      switch (set) {
      case 0: /* latin 1 */
          if ((ks >= XKB_KEY_A && ks <= XKB_KEY_Z) ||
              (ks >= XKB_KEY_Agrave && ks <= XKB_KEY_THORN && ks != XKB_KEY_multiply))
              rtrn |= _XkbKSUpper;
          if ((ks >= XKB_KEY_a && ks <= XKB_KEY_z) ||
              (ks >= XKB_KEY_agrave && ks <= XKB_KEY_ydiaeresis))
              rtrn |= _XkbKSLower;
          break;
      case 1: /* latin 2 */
          if ((ks >= XKB_KEY_Aogonek && ks <= XKB_KEY_Zabovedot && ks != XKB_KEY_breve) ||
              (ks >= XKB_KEY_Racute && ks<=XKB_KEY_Tcedilla))
              rtrn |= _XkbKSUpper;
          if ((ks >= XKB_KEY_aogonek && ks <= XKB_KEY_zabovedot && ks != XKB_KEY_caron) ||
              (ks >= XKB_KEY_racute && ks <= XKB_KEY_tcedilla))
              rtrn |= _XkbKSLower;
          break;
      case 2: /* latin 3 */
          if ((ks >= XKB_KEY_Hstroke && ks <= XKB_KEY_Jcircumflex) ||
              (ks >= XKB_KEY_Cabovedot && ks <= XKB_KEY_Scircumflex))
              rtrn |= _XkbKSUpper;
          if ((ks >= XKB_KEY_hstroke && ks <= XKB_KEY_jcircumflex) ||
              (ks >= XKB_KEY_cabovedot && ks <= XKB_KEY_scircumflex))
              rtrn |= _XkbKSLower;
          break;
      case 3: /* latin 4 */
          if ((ks >= XKB_KEY_Rcedilla && ks <= XKB_KEY_Tslash) ||
              (ks == XKB_KEY_ENG) ||
              (ks >= XKB_KEY_Amacron && ks <= XKB_KEY_Umacron))
              rtrn |= _XkbKSUpper;
          if ((ks >= XKB_KEY_rcedilla && ks <= XKB_KEY_tslash) ||
              (ks == XKB_KEY_eng) ||
              (ks >= XKB_KEY_amacron && ks <= XKB_KEY_umacron))
              rtrn |= _XkbKSLower;
          break;
      case 18: /* latin 8 */
          if ((ks == XKB_KEY_Wcircumflex) ||
              (ks == XKB_KEY_Ycircumflex) ||
              (ks == XKB_KEY_Babovedot) ||
              (ks == XKB_KEY_Dabovedot) ||
              (ks == XKB_KEY_Fabovedot) ||
              (ks == XKB_KEY_Mabovedot) ||
              (ks == XKB_KEY_Pabovedot) ||
              (ks == XKB_KEY_Sabovedot) ||
              (ks == XKB_KEY_Tabovedot) ||
              (ks == XKB_KEY_Wdiaeresis) ||
              (ks == XKB_KEY_Ygrave))
              rtrn |= _XkbKSUpper;
          if ((ks == XKB_KEY_wcircumflex) ||
              (ks == XKB_KEY_ycircumflex) ||
              (ks == XKB_KEY_babovedot) ||
              (ks == XKB_KEY_dabovedot) ||
              (ks == XKB_KEY_fabovedot) ||
              (ks == XKB_KEY_mabovedot) ||
              (ks == XKB_KEY_pabovedot) ||
              (ks == XKB_KEY_sabovedot) ||
              (ks == XKB_KEY_tabovedot) ||
              (ks == XKB_KEY_wdiaeresis) ||
              (ks == XKB_KEY_ygrave))
              rtrn |= _XkbKSLower;
          break;
      case 19: /* latin 9 */
          if (ks == XKB_KEY_OE || ks == XKB_KEY_Ydiaeresis)
              rtrn |= _XkbKSUpper;
          if (ks == XKB_KEY_oe)
              rtrn |= _XkbKSLower;
          break;
      }
  
      return rtrn;
  }
  
  xkb_keycode_t
  XkbcFindKeycodeByName(struct xkb_keymap *keymap, const char *name,
                        bool use_aliases)
  {
      struct xkb_key_alias *alias;
      xkb_keycode_t i;
  
      for (i = keymap->min_key_code; i <= keymap->max_key_code; i++) {
          if (strncmp(darray_item(keymap->names->keys, i).name, name,
                      XkbKeyNameLength) == 0)
              return i;
      }
  
      if (!use_aliases)
          return 0;
  
  
      darray_foreach(alias, keymap->names->key_aliases)
          if (strncmp(name, alias->alias, XkbKeyNameLength) == 0)
              return XkbcFindKeycodeByName(keymap, alias->real, false);
  
      return 0;
  }
  

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