void releaseParent_pp() {
super.releaseParent_pp();
if (cascade != null) cascade.setMenu(null);
if ((style & SWT.BAR) != 0 && this == parent.menuBar) {
parent.setMenuBar(null);
}
}
/**
* Returns <code>true</code> if the receiver is enabled and all of the receiver's ancestors are
* enabled, and <code>false</code> otherwise. A disabled menu is typically not selectable from the
* user interface and draws with an inactive or "grayed" look.
*
* @return the receiver's enabled state
* @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>
*
* @see #getEnabled
*/
public boolean isEnabled() {
checkWidget();
Menu parentMenu = getParentMenu();
if (parentMenu == null) {
return getEnabled() && parent.isEnabled();
}
return getEnabled() && parentMenu.isEnabled();
}
void releaseWidget_pp() {
super.releaseWidget_pp();
if (parent != null) parent.removeMenu(this);
parent = null;
cascade = null;
}
/**
* Returns the receiver's shell. For all controls other than shells, this simply returns the
* control's nearest ancestor shell. Shells return themselves, even if they are children of other
* shells.
*
* @return the receiver's shell
* @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>
*
* @see #getParent
*/
public Shell getShell() {
checkWidget();
return parent.getShell();
}
void createWidget(int index) {
checkOrientation(parent);
super.createWidget(index);
parent.addMenu(this);
}