}
protected void initActions(IActionBars actionBars) {
ISharedImages sharedImages = PlatformUI.getWorkbench().getSharedImages();
undoAction = new UndoAction(editingDomain);
undoAction.setImageDescriptor(sharedImages.getImageDescriptor(ISharedImages.IMG_TOOL_UNDO));
actionBars.setGlobalActionHandler(ActionFactory.UNDO.getId(), undoAction);
redoAction = new RedoAction(editingDomain);
redoAction.setImageDescriptor(sharedImages.getImageDescriptor(ISharedImages.IMG_TOOL_REDO));