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
35 #include <X11/extensions/XKB.h>
40 InitVModInfo(VModInfo * info, struct xkb_desc * xkb)
42 ClearVModInfo(info, xkb);
48 ClearVModInfo(VModInfo * info, struct xkb_desc * xkb)
52 if (XkbcAllocNames(xkb, XkbVirtualModNamesMask, 0, 0) != Success)
54 if (XkbcAllocServerMap(xkb, XkbVirtualModsMask, 0) != Success)
57 info->newlyDefined = info->defined = info->available = 0;
58 if (xkb && xkb->names)
61 for (i = 0, bit = 1; i < XkbNumVirtualMods; i++, bit <<= 1)
63 if (xkb->names->vmods[i] != None)
70 /***====================================================================***/
73 * Handle one entry in the virtualModifiers line (e.g. NumLock).
74 * If the entry is e.g. NumLock=Mod1, stmt->value is not NULL, and the
75 * XkbServerMap's vmod is set to the given modifier. Otherwise, the vmod is 0.
77 * @param stmt The statement specifying the name and (if any the value).
78 * @param mergeMode Merge strategy (e.g. MergeOverride)
81 HandleVModDef(VModDef * stmt, struct xkb_desc *xkb, unsigned mergeMode,
84 register int i, bit, nextFree;
86 struct xkb_server_map * srv;
87 struct xkb_names * names;
91 for (i = 0, bit = 1, nextFree = -1; i < XkbNumVirtualMods; i++, bit <<= 1)
93 if (info->defined & bit)
95 if (names->vmods[i] == stmt->name)
96 { /* already defined */
97 info->available |= bit;
98 if (stmt->value == NULL)
103 const char *str2 = "";
104 if (!ExprResolveModMask(stmt->value, &mod))
106 str1 = XkbcAtomText(stmt->name);
107 ACTION("Declaration of %s ignored\n", str1);
110 if (mod.uval == srv->vmods[i])
113 str1 = XkbcAtomText(stmt->name);
114 WARN("Virtual modifier %s multiply defined\n", str1);
115 str1 = XkbcModMaskText(srv->vmods[i], True);
116 if (mergeMode == MergeOverride)
119 str1 = XkbcModMaskText(mod.uval, True);
121 ACTION("Using %s, ignoring %s\n", str1, str2);
122 if (mergeMode == MergeOverride)
123 srv->vmods[i] = mod.uval;
128 else if (nextFree < 0)
133 ERROR("Too many virtual modifiers defined (maximum %d)\n",
137 info->defined |= (1 << nextFree);
138 info->newlyDefined |= (1 << nextFree);
139 info->available |= (1 << nextFree);
140 names->vmods[nextFree] = stmt->name;
141 if (stmt->value == NULL)
143 if (ExprResolveModMask(stmt->value, &mod))
145 srv->vmods[nextFree] = mod.uval;
148 ACTION("Declaration of %s ignored\n", XkbcAtomText(stmt->name));
153 * Returns the index of the given modifier in the xkb->names->vmods array.
155 * @param priv Pointer to the xkb data structure.
156 * @param field The Atom of the modifier's name (e.g. Atom for LAlt)
157 * @param type Must be TypeInt, otherwise return False.
158 * @param val_rtrn Set to the index of the modifier that matches.
160 * @return True on success, False otherwise. If False is returned, val_rtrn is
164 LookupVModIndex(struct xkb_desc *xkb, uint32_t field, unsigned type,
165 ExprResult * val_rtrn)
169 if ((xkb == NULL) || (xkb->names == NULL) || (type != TypeInt))
173 /* For each named modifier, get the name and compare it to the one passed
174 * in. If we get a match, return the index of the modifier.
175 * The order of modifiers is the same as in the virtual_modifiers line in
176 * the xkb_types section.
178 for (i = 0; i < XkbNumVirtualMods; i++)
180 if (xkb->names->vmods[i] == field)
190 * Get the mask for the given (virtual or core) modifier and set
191 * val_rtrn.uval to the mask value.
193 * @param priv Pointer to xkb data structure.
194 * @param val_rtrn Member uval is set to the mask returned.
196 * @return True on success, False otherwise. If False is returned, val_rtrn is
200 LookupVModMask(void * priv, uint32_t field, unsigned type,
201 ExprResult * val_rtrn)
203 if (LookupModMask(NULL, field, type, val_rtrn))
207 else if (LookupVModIndex(priv, field, type, val_rtrn))
209 register unsigned ndx = val_rtrn->uval;
210 val_rtrn->uval = (1 << (XkbNumModifiers + ndx));
217 FindKeypadVMod(struct xkb_desc * xkb)
222 name = xkb_intern_atom("NumLock");
223 if ((xkb) && LookupVModIndex(xkb, name, TypeInt, &rtrn))
231 ResolveVirtualModifier(ExprDef * def, struct xkb_desc *xkb,
232 ExprResult * val_rtrn, VModInfo * info)
234 struct xkb_names * names;
237 if (def->op == ExprIdent)
240 for (i = 0, bit = 1; i < XkbNumVirtualMods; i++, bit <<= 1)
242 if ((info->available & bit) && names->vmods[i] == def->value.str)
249 if (ExprResolveInteger(def, val_rtrn))
251 if (val_rtrn->uval < XkbNumVirtualMods)
253 ERROR("Illegal virtual modifier %d (must be 0..%d inclusive)\n",
254 val_rtrn->uval, XkbNumVirtualMods - 1);