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"
32 InitVModInfo(VModInfo *info, struct xkb_keymap *keymap)
36 info->defined = info->available = 0;
38 for (i = 0; i < XkbNumVirtualMods; i++)
39 if (keymap->vmod_names[i])
40 info->defined |= (1 << i);
44 ClearVModInfo(VModInfo *info)
46 info->defined = info->available = 0;
50 HandleVModDef(VModDef *stmt, struct xkb_keymap *keymap,
51 enum merge_mode mergeMode, VModInfo *info)
59 "Support for setting a value in a virtual_modifiers statement has been removed; "
63 for (i = 0, bit = 1; i < XkbNumVirtualMods; i++, bit <<= 1) {
64 if (!(info->defined & bit)) {
70 /* Already defined. */
71 if (!keymap->vmod_names[i])
74 if (!streq(keymap->vmod_names[i],
75 xkb_atom_text(keymap->ctx, stmt->name)))
78 info->available |= bit;
84 "Too many virtual modifiers defined (maximum %d)\n",
89 info->defined |= (1 << nextFree);
90 info->available |= (1 << nextFree);
92 keymap->vmod_names[nextFree] = xkb_atom_text(keymap->ctx, 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)
101 const char *name = xkb_atom_text(keymap->ctx, field);
103 if (type != EXPR_TYPE_INT)
106 for (i = 0; i < XkbNumVirtualMods; i++) {
107 if (keymap->vmod_names[i] && streq(keymap->vmod_names[i], name)) {
117 LookupVModMask(struct xkb_context *ctx, const void *priv, xkb_atom_t field,
118 enum expr_value_type type, xkb_mod_mask_t *val_rtrn)
122 if (LookupModMask(ctx, NULL, field, type, val_rtrn)) {
125 else if (LookupVModIndex(priv, field, type, &ndx)) {
126 *val_rtrn = (1 << (XkbNumModifiers + ndx));
134 ResolveVirtualModifier(ExprDef *def, struct xkb_keymap *keymap,
135 xkb_mod_index_t *ndx_rtrn, VModInfo *info)
140 if (def->op != EXPR_IDENT) {
142 "Cannot resolve virtual modifier: "
143 "found %s where a virtual modifier name was expected\n",
144 expr_op_type_to_string(def->op));
148 name = xkb_atom_text(keymap->ctx, def->value.str);
150 for (i = 0; i < XkbNumVirtualMods; i++) {
151 if ((info->available & (1 << i)) &&
152 streq_not_null(keymap->vmod_names[i], name)) {
159 "Cannot resolve virtual modifier: "
160 "\"%s\" was not previously declared\n", name);