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 #include "xkbcomp-priv.h"
33 InitVModInfo(VModInfo *info, struct xkb_keymap *keymap)
37 info->defined = info->available = 0;
39 for (i = 0; i < XKB_NUM_VIRTUAL_MODS; i++)
40 if (keymap->vmod_names[i])
41 info->defined |= (1 << i);
45 ClearVModInfo(VModInfo *info)
47 info->defined = info->available = 0;
51 HandleVModDef(VModDef *stmt, struct xkb_keymap *keymap,
52 enum merge_mode mergeMode, VModInfo *info)
60 "Support for setting a value in a virtual_modifiers statement has been removed; "
64 for (i = 0, bit = 1; i < XKB_NUM_VIRTUAL_MODS; i++, bit <<= 1) {
65 if (!(info->defined & bit)) {
71 /* Already defined. */
72 if (!keymap->vmod_names[i])
75 if (keymap->vmod_names[i] != stmt->name)
78 info->available |= bit;
84 "Too many virtual modifiers defined (maximum %d)\n",
85 XKB_NUM_VIRTUAL_MODS);
89 info->defined |= (1 << nextFree);
90 info->available |= (1 << nextFree);
92 keymap->vmod_names[nextFree] = stmt->name;
97 LookupVModIndex(const struct xkb_keymap *keymap, xkb_atom_t field,
98 enum expr_value_type type, xkb_mod_index_t *val_rtrn)
102 if (type != EXPR_TYPE_INT)
105 for (i = 0; i < XKB_NUM_VIRTUAL_MODS; i++) {
106 if (keymap->vmod_names[i] == field) {
116 LookupVModMask(struct xkb_context *ctx, const void *priv, xkb_atom_t field,
117 enum expr_value_type type, xkb_mod_mask_t *val_rtrn)
121 if (LookupModMask(ctx, NULL, field, type, val_rtrn)) {
124 else if (LookupVModIndex(priv, field, type, &ndx)) {
125 *val_rtrn = (1 << (XKB_NUM_CORE_MODS + ndx));
133 ResolveVirtualModifier(ExprDef *def, struct xkb_keymap *keymap,
134 xkb_mod_index_t *ndx_rtrn, VModInfo *info)
137 xkb_atom_t name = def->value.str;
139 if (def->op != EXPR_IDENT) {
141 "Cannot resolve virtual modifier: "
142 "found %s where a virtual modifier name was expected\n",
143 expr_op_type_to_string(def->op));
147 for (i = 0; i < XKB_NUM_VIRTUAL_MODS; i++) {
148 if ((info->available & (1 << i)) && keymap->vmod_names[i] == name) {
155 "Cannot resolve virtual modifier: "
156 "\"%s\" was not previously declared\n",
157 xkb_atom_text(keymap->ctx, name));