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
34 #include <X11/extensions/XKB.h>
35 #include <X11/extensions/XKBstrcommon.h>
40 InitVModInfo(VModInfo * info, XkbcDescPtr xkb)
42 ClearVModInfo(info, xkb);
48 ClearVModInfo(VModInfo * info, XkbcDescPtr xkb)
52 if (XkbAllocNames(xkb, XkbVirtualModNamesMask, 0, 0) != Success)
54 if (XkbAllocServerMap(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, unsigned mergeMode, VModInfo * info)
83 register int i, bit, nextFree;
89 srv = info->xkb->server;
90 names = info->xkb->names;
92 XkbInternAtom(info->xkb->dpy, XkbAtomGetString(NULL, stmt->name),
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 = XkbAtomText(NULL, stmt->name, XkbMessage);
110 ACTION1("Declaration of %s ignored\n", str1);
113 if (mod.uval == srv->vmods[i])
116 str1 = XkbAtomText(NULL, stmt->name, XkbMessage);
117 WARN1("Virtual modifier %s multiply defined\n", str1);
118 str1 = XkbModMaskText(srv->vmods[i], XkbCFile);
119 if (mergeMode == MergeOverride)
122 str1 = XkbModMaskText(mod.uval, XkbCFile);
124 ACTION2("Using %s, ignoring %s\n", str1, str2);
125 if (mergeMode == MergeOverride)
126 srv->vmods[i] = mod.uval;
131 else if (nextFree < 0)
136 ERROR1("Too many virtual modifiers defined (maximum %d)\n",
141 info->defined |= (1 << nextFree);
142 info->newlyDefined |= (1 << nextFree);
143 info->available |= (1 << nextFree);
144 names->vmods[nextFree] = stmtName;
145 if (stmt->value == NULL)
147 if (ExprResolveModMask(stmt->value, &mod, NULL, NULL))
149 srv->vmods[nextFree] = mod.uval;
152 ACTION1("Declaration of %s ignored\n",
153 XkbAtomText(NULL, stmt->name, XkbMessage));
158 * Returns the index of the given modifier in the xkb->names->vmods array.
160 * @param priv Pointer to the xkb data structure.
161 * @param elem Must be None, otherwise return False.
162 * @param field The Atom of the modifier's name (e.g. Atom for LAlt)
163 * @param type Must be TypeInt, otherwise return False.
164 * @param val_rtrn Set to the index of the modifier that matches.
166 * @return True on success, False otherwise. If False is returned, val_rtrn is
170 LookupVModIndex(char * priv,
171 Atom elem, Atom field, unsigned type, ExprResult * val_rtrn)
174 register char *fieldStr;
175 register char *modStr;
178 xkb = (XkbcDescPtr) priv;
179 if ((xkb == NULL) || (xkb->names == NULL) || (elem != None)
180 || (type != TypeInt))
184 /* get the actual name */
185 fieldStr = XkbAtomGetString(xkb->dpy, field);
186 if (fieldStr == NULL)
188 /* For each named modifier, get the name and compare it to the one passed
189 * in. If we get a match, return the index of the modifier.
190 * The order of modifiers is the same as in the virtual_modifiers line in
191 * the xkb_types section.
193 for (i = 0; i < XkbNumVirtualMods; i++)
195 modStr = XkbAtomGetString(xkb->dpy, xkb->names->vmods[i]);
196 if ((modStr != NULL) && (uStrCaseCmp(fieldStr, modStr) == 0))
206 * Get the mask for the given modifier and set val_rtrn.uval to the mask.
207 * Note that the mask returned is always > 512.
209 * @param priv Pointer to xkb data structure.
210 * @param val_rtrn Set to the mask returned.
212 * @return True on success, False otherwise. If False is returned, val_rtrn is
216 LookupVModMask(char * priv,
217 Atom elem, Atom field, unsigned type, ExprResult * val_rtrn)
219 if (LookupVModIndex(priv, elem, field, type, val_rtrn))
221 register unsigned ndx = val_rtrn->uval;
222 val_rtrn->uval = (1 << (XkbNumModifiers + ndx));
229 FindKeypadVMod(XkbcDescPtr xkb)
234 name = XkbInternAtom(xkb->dpy, "NumLock", False);
235 if ((xkb) && LookupVModIndex((char *) xkb, None, name, TypeInt, &rtrn))
243 ResolveVirtualModifier(ExprDef * def, ExprResult * val_rtrn, VModInfo * info)
247 names = info->xkb->names;
248 if (def->op == ExprIdent)
251 for (i = 0, bit = 1; i < XkbNumVirtualMods; i++, bit <<= 1)
254 str1 = XkbAtomGetString(info->xkb->dpy, names->vmods[i]);
255 str2 = XkbAtomGetString(NULL, def->value.str);
256 if ((info->available & bit) && (uStrCaseCmp(str1, str2) == Equal))
263 if (ExprResolveInteger(def, val_rtrn, NULL, NULL))
265 if (val_rtrn->uval < XkbNumVirtualMods)
267 ERROR2("Illegal virtual modifier %d (must be 0..%d inclusive)\n",
268 val_rtrn->uval, XkbNumVirtualMods - 1);