});
Action undo = new UndoAction(getUndoManager(), options.getIconSize(), this);
myRolloverActions.add(undo);
bUndo = new TestGanttRolloverButton(undo);
Action redo = new RedoAction(getUndoManager(), options.getIconSize(), this);
myRolloverActions.add(redo);
bRedo = new TestGanttRolloverButton(redo);
Action critic = new CalculateCriticalPathAction(getTaskManager(), tree,
options, getUIConfiguration(), this);