private IDesignOperation getContentOperation(){
WidgetAdapter contentAdapter = ((RootPaneContainerAdapter)adaptable).getContentAdapter();
return (IDesignOperation) contentAdapter.getAdapter(IDesignOperation.class);
}
private void setDropStatus(int dropStatus){
JInternalFramePainter jap=(JInternalFramePainter) adaptable.getAdapter(IPainter.class);
jap.setDropStatus(dropStatus);
}