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>
37 #include <X11/extensions/XKBstrcommon.h>
42 InitVModInfo(VModInfo * info, XkbcDescPtr xkb)
44 ClearVModInfo(info, xkb);
50 ClearVModInfo(VModInfo * info, XkbcDescPtr xkb)
54 if (XkbcAllocNames(xkb, XkbVirtualModNamesMask, 0, 0) != Success)
56 if (XkbcAllocServerMap(xkb, XkbVirtualModsMask, 0) != Success)
59 info->newlyDefined = info->defined = info->available = 0;
60 if (xkb && xkb->names)
63 for (i = 0, bit = 1; i < XkbNumVirtualMods; i++, bit <<= 1)
65 if (xkb->names->vmods[i] != None)
72 /***====================================================================***/
75 * Handle one entry in the virtualModifiers line (e.g. NumLock).
76 * If the entry is e.g. NumLock=Mod1, stmt->value is not NULL, and the
77 * XkbServerMap's vmod is set to the given modifier. Otherwise, the vmod is 0.
79 * @param stmt The statement specifying the name and (if any the value).
80 * @param mergeMode Merge strategy (e.g. MergeOverride)
83 HandleVModDef(VModDef * stmt, unsigned mergeMode, VModInfo * info)
85 register int i, bit, nextFree;
91 srv = info->xkb->server;
92 names = info->xkb->names;
93 stmtName = XkbcInternAtom(XkbcAtomGetString(stmt->name), False);
94 for (i = 0, bit = 1, nextFree = -1; i < XkbNumVirtualMods; i++, bit <<= 1)
96 if (info->defined & bit)
98 if (names->vmods[i] == stmtName)
99 { /* already defined */
100 info->available |= bit;
101 if (stmt->value == NULL)
106 const char *str2 = "";
107 if (!ExprResolveModMask(stmt->value, &mod, NULL, NULL))
109 str1 = XkbcAtomText(stmt->name);
110 ACTION("Declaration of %s ignored\n", str1);
113 if (mod.uval == srv->vmods[i])
116 str1 = XkbcAtomText(stmt->name);
117 WARN("Virtual modifier %s multiply defined\n", str1);
118 str1 = XkbcModMaskText(srv->vmods[i], True);
119 if (mergeMode == MergeOverride)
122 str1 = XkbcModMaskText(mod.uval, True);
124 ACTION("Using %s, ignoring %s\n", str1, str2);
125 if (mergeMode == MergeOverride)
126 srv->vmods[i] = mod.uval;
131 else if (nextFree < 0)
136 ERROR("Too many virtual modifiers defined (maximum %d)\n",
140 info->defined |= (1 << nextFree);
141 info->newlyDefined |= (1 << nextFree);
142 info->available |= (1 << nextFree);
143 names->vmods[nextFree] = stmtName;
144 if (stmt->value == NULL)
146 if (ExprResolveModMask(stmt->value, &mod, NULL, NULL))
148 srv->vmods[nextFree] = mod.uval;
151 ACTION("Declaration of %s ignored\n",
152 XkbcAtomText(stmt->name));
157 * Returns the index of the given modifier in the xkb->names->vmods array.
159 * @param priv Pointer to the xkb data structure.
160 * @param elem Must be None, otherwise return False.
161 * @param field The Atom of the modifier's name (e.g. Atom for LAlt)
162 * @param type Must be TypeInt, otherwise return False.
163 * @param val_rtrn Set to the index of the modifier that matches.
165 * @return True on success, False otherwise. If False is returned, val_rtrn is
169 LookupVModIndex(char * priv,
170 Atom elem, Atom field, unsigned type, ExprResult * val_rtrn)
173 register char *fieldStr;
174 register char *modStr;
177 xkb = (XkbcDescPtr) priv;
178 if ((xkb == NULL) || (xkb->names == NULL) || (elem != None)
179 || (type != TypeInt))
183 /* get the actual name */
184 fieldStr = XkbcAtomGetString(field);
185 if (fieldStr == NULL)
187 /* For each named modifier, get the name and compare it to the one passed
188 * in. If we get a match, return the index of the modifier.
189 * The order of modifiers is the same as in the virtual_modifiers line in
190 * the xkb_types section.
192 for (i = 0; i < XkbNumVirtualMods; i++)
194 modStr = XkbcAtomGetString(xkb->names->vmods[i]);
195 if ((modStr != NULL) && (uStrCaseCmp(fieldStr, modStr) == 0))
205 * Get the mask for the given modifier and set val_rtrn.uval to the mask.
206 * Note that the mask returned is always > 512.
208 * @param priv Pointer to xkb data structure.
209 * @param val_rtrn Set to the mask returned.
211 * @return True on success, False otherwise. If False is returned, val_rtrn is
215 LookupVModMask(char * priv,
216 Atom elem, Atom field, unsigned type, ExprResult * val_rtrn)
218 if (LookupVModIndex(priv, elem, field, type, val_rtrn))
220 register unsigned ndx = val_rtrn->uval;
221 val_rtrn->uval = (1 << (XkbNumModifiers + ndx));
228 FindKeypadVMod(XkbcDescPtr xkb)
233 name = XkbcInternAtom("NumLock", False);
234 if ((xkb) && LookupVModIndex((char *) xkb, None, name, TypeInt, &rtrn))
242 ResolveVirtualModifier(ExprDef * def, ExprResult * val_rtrn, VModInfo * info)
246 names = info->xkb->names;
247 if (def->op == ExprIdent)
250 for (i = 0, bit = 1; i < XkbNumVirtualMods; i++, bit <<= 1)
253 str1 = XkbcAtomGetString(names->vmods[i]);
254 str2 = XkbcAtomGetString(def->value.str);
255 if ((info->available & bit) && (uStrCaseCmp(str1, str2) == Equal))
262 if (ExprResolveInteger(def, val_rtrn, NULL, NULL))
264 if (val_rtrn->uval < XkbNumVirtualMods)
266 ERROR("Illegal virtual modifier %d (must be 0..%d inclusive)\n",
267 val_rtrn->uval, XkbNumVirtualMods - 1);