1 /************************************************************
2 Copyright (c) 1994 by Silicon Graphics Computer Systems, Inc.
4 Permission to use, copy, modify, and distribute this
5 software and its documentation for any purpose and without
6 fee is hereby granted, provided that the above copyright
7 notice appear in all copies and that both that copyright
8 notice and this permission notice appear in supporting
9 documentation, and that the name of Silicon Graphics not be
10 used in advertising or publicity pertaining to distribution
11 of the software without specific prior written permission.
12 Silicon Graphics makes no representation about the suitability
13 of this software for any purpose. It is provided "as is"
14 without any express or implied warranty.
16 SILICON GRAPHICS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
17 SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
18 AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
19 GRAPHICS BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
20 DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
21 DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
22 OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH
23 THE USE OR PERFORMANCE OF THIS SOFTWARE.
25 ********************************************************/
27 #define DEBUG_VAR debugFlags
36 #include <X11/extensions/XKB.h>
41 InitVModInfo(VModInfo * info, struct xkb_desc * xkb)
43 ClearVModInfo(info, xkb);
49 ClearVModInfo(VModInfo * info, struct xkb_desc * xkb)
53 if (XkbcAllocNames(xkb, XkbVirtualModNamesMask, 0, 0) != Success)
55 if (XkbcAllocServerMap(xkb, XkbVirtualModsMask, 0) != Success)
58 info->newlyDefined = info->defined = info->available = 0;
59 if (xkb && xkb->names)
62 for (i = 0, bit = 1; i < XkbNumVirtualMods; i++, bit <<= 1)
64 if (xkb->names->vmods[i] != None)
71 /***====================================================================***/
74 * Handle one entry in the virtualModifiers line (e.g. NumLock).
75 * If the entry is e.g. NumLock=Mod1, stmt->value is not NULL, and the
76 * XkbServerMap's vmod is set to the given modifier. Otherwise, the vmod is 0.
78 * @param stmt The statement specifying the name and (if any the value).
79 * @param mergeMode Merge strategy (e.g. MergeOverride)
82 HandleVModDef(VModDef * stmt, struct xkb_desc *xkb, unsigned mergeMode,
85 register int i, bit, nextFree;
87 struct xkb_server_map * srv;
88 struct xkb_names * names;
92 for (i = 0, bit = 1, nextFree = -1; i < XkbNumVirtualMods; i++, bit <<= 1)
94 if (info->defined & bit)
96 if (names->vmods[i] == stmt->name)
97 { /* already defined */
98 info->available |= bit;
99 if (stmt->value == NULL)
104 const char *str2 = "";
105 if (!ExprResolveModMask(stmt->value, &mod))
107 str1 = XkbcAtomText(stmt->name);
108 ACTION("Declaration of %s ignored\n", str1);
111 if (mod.uval == srv->vmods[i])
114 str1 = XkbcAtomText(stmt->name);
115 WARN("Virtual modifier %s multiply defined\n", str1);
116 str1 = XkbcModMaskText(srv->vmods[i], True);
117 if (mergeMode == MergeOverride)
120 str1 = XkbcModMaskText(mod.uval, True);
122 ACTION("Using %s, ignoring %s\n", str1, str2);
123 if (mergeMode == MergeOverride)
124 srv->vmods[i] = mod.uval;
129 else if (nextFree < 0)
134 ERROR("Too many virtual modifiers defined (maximum %d)\n",
138 info->defined |= (1 << nextFree);
139 info->newlyDefined |= (1 << nextFree);
140 info->available |= (1 << nextFree);
141 names->vmods[nextFree] = stmt->name;
142 if (stmt->value == NULL)
144 if (ExprResolveModMask(stmt->value, &mod))
146 srv->vmods[nextFree] = mod.uval;
149 ACTION("Declaration of %s ignored\n", XkbcAtomText(stmt->name));
154 * Returns the index of the given modifier in the xkb->names->vmods array.
156 * @param priv Pointer to the xkb data structure.
157 * @param field The Atom of the modifier's name (e.g. Atom for LAlt)
158 * @param type Must be TypeInt, otherwise return False.
159 * @param val_rtrn Set to the index of the modifier that matches.
161 * @return True on success, False otherwise. If False is returned, val_rtrn is
165 LookupVModIndex(char * priv, uint32_t field, unsigned type,
166 ExprResult * val_rtrn)
169 struct xkb_desc * xkb;
171 xkb = (struct xkb_desc *) priv;
172 if ((xkb == NULL) || (xkb->names == NULL) || (type != TypeInt))
176 /* For each named modifier, get the name and compare it to the one passed
177 * in. If we get a match, return the index of the modifier.
178 * The order of modifiers is the same as in the virtual_modifiers line in
179 * the xkb_types section.
181 for (i = 0; i < XkbNumVirtualMods; i++)
183 if (xkb->names->vmods[i] == field)
193 * Get the mask for the given modifier and set val_rtrn.uval to the mask.
194 * Note that the mask returned is always > 512.
196 * @param priv Pointer to xkb data structure.
197 * @param val_rtrn Set to the mask returned.
199 * @return True on success, False otherwise. If False is returned, val_rtrn is
203 LookupVModMask(char * priv, uint32_t field, unsigned type, ExprResult * val_rtrn)
205 if (LookupVModIndex(priv, field, type, val_rtrn))
207 register unsigned ndx = val_rtrn->uval;
208 val_rtrn->uval = (1 << (XkbNumModifiers + ndx));
215 FindKeypadVMod(struct xkb_desc * xkb)
220 name = xkb_intern_atom("NumLock");
221 if ((xkb) && LookupVModIndex((char *) xkb, name, TypeInt, &rtrn))
229 ResolveVirtualModifier(ExprDef * def, struct xkb_desc *xkb,
230 ExprResult * val_rtrn, VModInfo * info)
232 struct xkb_names * names;
235 if (def->op == ExprIdent)
238 for (i = 0, bit = 1; i < XkbNumVirtualMods; i++, bit <<= 1)
240 if ((info->available & bit) && names->vmods[i] == def->value.str)
247 if (ExprResolveInteger(def, val_rtrn))
249 if (val_rtrn->uval < XkbNumVirtualMods)
251 ERROR("Illegal virtual modifier %d (must be 0..%d inclusive)\n",
252 val_rtrn->uval, XkbNumVirtualMods - 1);