kc3-lang/libxkbcommon/src/text.h

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• Hash : 3b389b15
  Author :
  Date : 2012-09-27T18:49:13
  

  Don't limit key names to 4 characters
  
  Currently you can't give a key in xkb_keycodes a name of more than
  XKB_KEY_NAME_LENGTH (= 4) chars. This is a pretty annoying and arbitrary
  limitation; it leads to names such as <RTSH>, <COMP>, <PRSC>, <KPAD>
  etc. which may be hard to decipher, and makes it impossible to give
  more standard names (e.g. from linux/input.h) to keycodes.
  
  The purpose of this, as far as I can tell, was to save memory and to
  allow encoding a key name directly to a 32 bit value (unsigned long it
  was).
  
  We remove this limitation by just storing the names as atoms; this lifts
  the limit, allows for easy comparison like the unsigned long thing, and
  doesn't use more memory than previous solution. It also relieves us from
  doing all of the annoying conversions to/from long.
  
  This has a large diffstat only because KeyNameText, which is used a lot,
  now needs to take the context in order to resolve the atom.
  
  Signed-off-by: Ran Benita <ran234@gmail.com>
  

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• src/text.h

• /*
   * Copyright © 2009 Dan Nicholson
   *
   * Permission is hereby granted, free of charge, to any person obtaining a
   * copy of this software and associated documentation files (the "Software"),
   * to deal in the Software without restriction, including without limitation
   * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   * and/or sell copies of the Software, and to permit persons to whom the
   * Software is furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice (including the next
   * paragraph) shall be included in all copies or substantial portions of the
   * Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
   * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
   * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
   * DEALINGS IN THE SOFTWARE.
   */
  
  #ifndef TEXT_H
  #define TEXT_H
  
  typedef struct {
      const char *name;
      unsigned int value;
  } LookupEntry;
  
  bool
  LookupString(const LookupEntry tab[], const char *string,
                unsigned int *value_rtrn);
  
  const char *
  LookupValue(const LookupEntry tab[], unsigned int value);
  
  extern const LookupEntry ctrlMaskNames[];
  extern const LookupEntry modComponentMaskNames[];
  extern const LookupEntry groupComponentMaskNames[];
  extern const LookupEntry groupMaskNames[];
  extern const LookupEntry groupNames[];
  extern const LookupEntry levelNames[];
  extern const LookupEntry buttonNames[];
  extern const LookupEntry useModMapValueNames[];
  extern const LookupEntry actionTypeNames[];
  extern const LookupEntry symInterpretMatchMaskNames[];
  
  const char *
  VModMaskText(struct xkb_keymap *keymap, xkb_mod_mask_t cmask);
  
  xkb_mod_index_t
  ModNameToIndex(const char *name);
  
  const char *
  ModIndexToName(xkb_mod_index_t ndx);
  
  const char *
  ModIndexText(xkb_mod_index_t ndx);
  
  const char *
  ModMaskText(xkb_mod_mask_t mask);
  
  const char *
  ActionTypeText(unsigned type);
  
  const char *
  KeysymText(xkb_keysym_t sym);
  
  const char *
  KeyNameText(struct xkb_context *ctx, xkb_atom_t name);
  
  const char *
  SIMatchText(unsigned type);
  
  #endif /* TEXT_H */
  

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