/*
** Part of dialog mnemonic processing. Search the widget tree under w
** for widgets with mnemonics. When found, add a passive grab to the
** dialog widget for the mnemonic character, thus directing mnemonic
** events to the dialog widget.
*/
static void addMnemonicGrabs(Widget dialog, Widget w)
{
char mneString[2];
WidgetList children;
int numChildren, i, isMenu;
KeySym mnemonic = '\0';
unsigned char rowColType;
if (XtIsComposite(w)) {
if (XtClass(w) == xmRowColumnWidgetClass) {
XtVaGetValues(w, XmNrowColumnType, &rowColType, 0);
isMenu = rowColType != XmWORK_AREA;
} else
isMenu = False;
if (!isMenu) {
XtVaGetValues(w, XmNchildren, &children, XmNnumChildren,
&numChildren, 0);
for (i=0; i<numChildren; i++)
addMnemonicGrabs(dialog, children[i]);
}
} else {
XtVaGetValues(w, XmNmnemonic, &mnemonic, 0);
if (mnemonic != '\0') {
mneString[0] = mnemonic; mneString[1] = '\0';
XtGrabKey(dialog, XKeysymToKeycode(XtDisplay(dialog),
XStringToKeysym(mneString)), Mod1Mask,
True, GrabModeAsync, GrabModeAsync);
}
}
}
static void GrabAllCorrectKeys(
Widget widget,
TMTypeMatch typeMatch,
TMModifierMatch modMatch,
GrabActionRec* grabP)
{
Display *dpy = XtDisplay(widget);
KeyCode *keycodes, *keycodeP;
Cardinal keycount;
Modifiers careOn = 0;
Modifiers careMask = 0;
if (modMatch->lateModifiers) {
Boolean resolved;
resolved = _XtComputeLateBindings(dpy, modMatch->lateModifiers,
&careOn, &careMask);
if (!resolved) return;
}
careOn |= modMatch->modifiers;
careMask |= modMatch->modifierMask;
XtKeysymToKeycodeList(
dpy,
(KeySym)typeMatch->eventCode,
&keycodes,
&keycount
);
if (keycount == 0) return;
for (keycodeP = keycodes; keycount--; keycodeP++) {
if (modMatch->standard) {
/* find standard modifiers that produce this keysym */
KeySym keysym;
int std_mods, least_mod;
Modifiers modifiers_return;
XtTranslateKeycode( dpy, *keycodeP, (Modifiers)0,
&modifiers_return, &keysym );
if (careOn & modifiers_return)
return;
if (keysym == typeMatch->eventCode) {
XtGrabKey(widget, *keycodeP, careOn,
grabP->owner_events,
grabP->pointer_mode,
grabP->keyboard_mode
);
/* continue; */ /* grab all modifier combinations */
}
least_mod = modifiers_return & (~modifiers_return + 1);
for (std_mods = modifiers_return;
std_mods >= least_mod; std_mods--) {
Modifiers dummy;
/* check all useful combinations of modifier bits */
if (modifiers_return & std_mods &&
!(~modifiers_return & std_mods)) {
XtTranslateKeycode( dpy, *keycodeP,
(Modifiers)std_mods,
&dummy, &keysym );
if (keysym == typeMatch->eventCode) {
XtGrabKey(widget, *keycodeP,
careOn | (Modifiers) std_mods,
grabP->owner_events,
grabP->pointer_mode,
grabP->keyboard_mode
);
/* break; */ /* grab all modifier combinations */
}
}
}
} else /* !event->standard */ {
XtGrabKey(widget, *keycodeP, careOn,
grabP->owner_events,
grabP->pointer_mode,
grabP->keyboard_mode
);
}
}
XtFree((char *)keycodes);
}
