/**
* Returns the item at the given, zero-relative index in the receiver. Throws an exception if the
* index is out of range.
*
* @param index the index of the item to return
* @return the item at the given index
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the
* list minus 1 (inclusive)
* </ul>
*
* @exception SWTException
* <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
* </ul>
*/
public MenuItem getItem(int index) {
checkWidget();
if (index < 0) error(SWT.ERROR_INVALID_RANGE);
int[] actions = OS.QWidget_actions(handle);
int indexOfLastMenuItem = -1;
MenuItem itemAtIndex = null;
for (int i = 0; i < actions.length; ++i) {
Widget widget = Display.getWidget(actions[i]);
if (widget != null && widget instanceof MenuItem) {
if (++indexOfLastMenuItem == index) {
itemAtIndex = (MenuItem) widget;
break;
}
}
}
if (index > indexOfLastMenuItem) {
error(SWT.ERROR_INVALID_RANGE);
}
return itemAtIndex;
}
/**
* Returns a (possibly empty) array of <code>MenuItem</code>s which are the items in the receiver.
*
* <p>Note: This is not the actual structure used by the receiver to maintain its list of items,
* so modifying the array will not affect the receiver.
*
* @return the items in the receiver
* @exception SWTException
* <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
* </ul>
*/
public MenuItem[] getItems() {
checkWidget();
int[] handles = OS.QWidget_actions(handle);
int count = handles.length;
if (count == 0) return new MenuItem[0];
MenuItem[] children = new MenuItem[count];
int items = 0;
for (int i = 0; i < count; ++i) {
int handle = handles[i];
if (handle != 0) {
Widget widget = Display.getWidget(handle);
if (widget != null && widget != this) {
if (widget instanceof MenuItem) {
children[items++] = (MenuItem) widget;
}
}
}
}
if (items == count) return children;
MenuItem[] newChildren = new MenuItem[items];
System.arraycopy(children, 0, newChildren, 0, items);
return newChildren;
}