/*----------------------------------------------------------------------*/
/* extern */ Widget
XfeMenuItemPreviousItem(Widget item)
{
int position_index;
Widget parent;
Cardinal num_children;
Widget previous = NULL;
assert( _XfeIsAlive(item) );
assert( XtIsObject(item) );
parent = _XfeParent(item);
assert( XmIsRowColumn(_XfeParent(item)) );
position_index = XfeMenuItemPositionIndex(item);
num_children = _XfemNumChildren(parent);
if (position_index > 0)
{
previous = _XfeChildrenIndex(parent,position_index - 1);
}
return previous;
}
void
awt_util_mapChildren(Widget w, void (*func)(Widget,void *),
int32_t applyToCurrent, void *data) {
WidgetList wlist;
Cardinal wlen = 0;
Cardinal i;
/* The widget may have been destroyed by another thread. */
if ((w == NULL) || (!XtIsObject(w)) || (w->core.being_destroyed))
return;
if (applyToCurrent != 0) {
(*func)(w, data);
}
if (!XtIsComposite(w)) {
return;
}
XtVaGetValues(w,
XmNchildren, &wlist,
XmNnumChildren, &wlen,
NULL);
if (wlen > 0) {
for (i=0; i < wlen; i++) {
awt_util_mapChildren(wlist[i], func, 1, data);
}
}
}
/*----------------------------------------------------------------------*/
/* extern */ Widget
XfeMenuItemNextItem(Widget item)
{
int position_index;
Widget parent;
Cardinal num_children;
Widget next = NULL;
assert( _XfeIsAlive(item) );
assert( XtIsObject(item) );
parent = _XfeParent(item);
assert( XmIsRowColumn(_XfeParent(item)) );
position_index = XfeMenuItemPositionIndex(item);
num_children = _XfemNumChildren(parent);
if (position_index < (num_children - 1))
{
next = _XfeChildrenIndex(parent,position_index + 1);
}
return next;
}
/*----------------------------------------------------------------------*/
/* extern */ int
XfeMenuItemPositionIndex(Widget item)
{
XmRowColumnConstraintRec * rccp;
assert( _XfeIsAlive(item) );
assert( XmIsRowColumn(_XfeParent(item)) );
assert( XtIsObject(item) );
rccp = (XmRowColumnConstraintRec *) (item -> core . constraints);
return (int) rccp -> row_column . position_index;
}
JNIEXPORT void JNICALL
Java_java_awt_AWTEvent_nativeSetSource(JNIEnv *env, jobject self,
jobject newSource)
{
jbyteArray bdata;
AWT_LOCK();
bdata = (jbyteArray)(*env)->GetObjectField(env, self, awtEventIDs.bdata);
if (bdata != NULL) {
XEvent *xev;
Window w;
jboolean dummy;
/* get the widget out of the peer newSource */
struct ComponentData *cdata = (struct ComponentData *)
JNU_GetLongFieldAsPtr(env, newSource, mComponentPeerIDs.pData);
if (JNU_IsNull(env, cdata) || (cdata == NULL) ||
((cdata->widget != NULL) && (XtIsObject(cdata->widget)) &&
(cdata->widget->core.being_destroyed))) {
JNU_ThrowNullPointerException(env, "null widget");
AWT_UNLOCK();
return;
}
/* get the Window out of the widget */
w = XtWindow(cdata->widget);
if (w == None) {
JNU_ThrowNullPointerException(env, "null window");
AWT_UNLOCK();
return;
}
/* reset the filed in the event */
xev = (XEvent *)(*env)->GetPrimitiveArrayCritical(env, bdata, &dummy);
if (xev == NULL) {
JNU_ThrowNullPointerException(env, "null data");
AWT_UNLOCK();
return;
}
xev->xany.window = w;
(*env)->ReleasePrimitiveArrayCritical(env, bdata, (void *)xev, 0);
}
AWT_UNLOCK();
}
