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xkb: explicitly check for group replication in the core representation.

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Single-group keys may get replicated amongst all groups. Check explicitly for
this case and squash it down to one group.

Signed-off-by: Peter Hutterer <peter.hutterer@redhat.com>
This commit is contained in:
Peter Hutterer 2008-12-02 14:54:50 +10:00 committed by Peter Hutterer
parent 70a977c021
commit f141c1b4bb
1 changed files with 63 additions and 19 deletions
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82
xkb/XKBMisc.c
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@ -56,6 +56,7 @@ register int i;
unsigned int empty;
int nSyms[XkbNumKbdGroups];
int nGroups,tmp,groupsWidth;
BOOL replicated = FALSE;
/* Section 12.2 of the protocol describes this process in more detail */
/* Step 1: find the # of symbols in the core mapping per group */
@ -89,27 +90,70 @@ int nGroups,tmp,groupsWidth;
for (i=2;i<nSyms[XkbGroup2Index];i++) {
xkb_syms_rtrn[XKB_OFFSET(XkbGroup2Index,i)]= CORE_SYM(tmp+i);
}
tmp= nSyms[XkbGroup1Index]+nSyms[XkbGroup2Index];
if ((tmp>=map_width)&&
((protected&(XkbExplicitKeyType3Mask|XkbExplicitKeyType4Mask))==0)) {
/* Special case: if only the first group is explicit, and the symbols
* replicate across all groups, then we have a Section 12.4 replication */
if ((protected & ~XkbExplicitKeyType1Mask) == 0)
{
int j, width = nSyms[XkbGroup1Index];
replicated = TRUE;
/* Check ABAB in ABABCDECDEABCDE */
if ((width > 0 && CORE_SYM(0) != CORE_SYM(2)) ||
(width > 1 && CORE_SYM(1) != CORE_SYM(3)))
replicated = FALSE;
/* Check CDECDE in ABABCDECDEABCDE */
for (i = 2; i < width && replicated; i++)
{
if (CORE_SYM(2 + i) != CORE_SYM(i + width))
replicated = FALSE;
}
/* Check ABCDE in ABABCDECDEABCDE */
for (j = 2; replicated &&
j < XkbNumKbdGroups &&
map_width >= width * (j + 1); j++)
{
for (i = 0; i < width && replicated; i++)
{
if (CORE_SYM(((i < 2) ? i : 2 + i)) != CORE_SYM(i + width * j))
replicated = FALSE;
}
}
}
if (replicated)
{
nSyms[XkbGroup2Index]= 0;
nSyms[XkbGroup3Index]= 0;
nSyms[XkbGroup4Index]= 0;
nGroups= 2;
}
else {
nGroups= 3;
for (i=0;i<nSyms[XkbGroup3Index];i++,tmp++) {
xkb_syms_rtrn[XKB_OFFSET(XkbGroup3Index,i)]= CORE_SYM(tmp);
}
if ((tmp<map_width)||(protected&XkbExplicitKeyType4Mask)) {
nGroups= 4;
for (i=0;i<nSyms[XkbGroup4Index];i++,tmp++) {
xkb_syms_rtrn[XKB_OFFSET(XkbGroup4Index,i)]= CORE_SYM(tmp);
}
}
else {
nSyms[XkbGroup4Index]= 0;
}
nGroups= 1;
} else
{
tmp= nSyms[XkbGroup1Index]+nSyms[XkbGroup2Index];
if ((tmp>=map_width)&&
((protected&(XkbExplicitKeyType3Mask|XkbExplicitKeyType4Mask))==0)) {
nSyms[XkbGroup3Index]= 0;
nSyms[XkbGroup4Index]= 0;
nGroups= 2;
} else
{
nGroups= 3;
for (i=0;i<nSyms[XkbGroup3Index];i++,tmp++) {
xkb_syms_rtrn[XKB_OFFSET(XkbGroup3Index,i)]= CORE_SYM(tmp);
}
if ((tmp<map_width)||(protected&XkbExplicitKeyType4Mask)) {
nGroups= 4;
for (i=0;i<nSyms[XkbGroup4Index];i++,tmp++) {
xkb_syms_rtrn[XKB_OFFSET(XkbGroup4Index,i)]= CORE_SYM(tmp);
}
}
else {
nSyms[XkbGroup4Index]= 0;
}
}
}
/* steps 3&4: alphanumeric expansion, assign canonical types */
empty= 0;