void createWidget(int index) {
super.createWidget(index);
int topHandle = topHandle();
if (OS.XtIsRealized(topHandle)) {
/*
* Make sure that the widget has been properly realized
* because the widget was created after the parent
* has been realized.
*/
realizeChildren();
}
}
/**
* Sets the control that is used to fill the bounds of the item when the item is a <code>SEPARATOR
* </code>.
*
* @param control the new control
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_INVALID_ARGUMENT - if the control has been disposed
* <li>ERROR_INVALID_PARENT - if the control is not in the same widget tree
* </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 void setControl(Control control) {
checkWidget();
if (control != null) {
if (control.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
if (control.parent != parent) error(SWT.ERROR_INVALID_PARENT);
}
if ((style & SWT.SEPARATOR) == 0) return;
if (this.control == control) return;
this.control = control;
int[] argList = {
OS.XmNseparatorType,
control == null
? ((parent.style & SWT.FLAT) != 0 ? OS.XmSHADOW_ETCHED_IN : OS.XmSHADOW_ETCHED_OUT)
: OS.XmNO_LINE,
};
OS.XtSetValues(handle, argList, argList.length / 2);
if (control != null && !control.isDisposed()) {
/*
* It is possible that the control was created with a
* z-order below that of the current tool item. In this
* case, the control is not visible because it is
* obscured by the tool item. The fix is to move the
* control above this tool item in the z-order.
* The code below is similar to the code found in
* setZOrder.
*/
int xDisplay = OS.XtDisplay(handle);
if (xDisplay == 0) return;
if (!OS.XtIsRealized(handle)) {
Shell shell = parent.getShell();
shell.realizeWidget();
}
int topHandle1 = control.topHandle();
int window1 = OS.XtWindow(topHandle1);
if (window1 == 0) return;
int topHandle2 = this.topHandle();
int window2 = OS.XtWindow(topHandle2);
if (window2 == 0) return;
XWindowChanges struct = new XWindowChanges();
struct.sibling = window2;
struct.stack_mode = OS.Above;
int screen = OS.XDefaultScreen(xDisplay);
int flags = OS.CWStackMode | OS.CWSibling;
OS.XReconfigureWMWindow(xDisplay, window1, screen, flags, struct);
}
parent.relayout();
}