||This class handles interaction with the AWT event model.
||This class stores a list of methods to be invoked whenever an Event of a particular class is generated
by a Widget.
||This is a JPanel subclass, which is used internally by various WidgetContainers.
||ToolTipMonitor receives mouse events from Widgets, and sends out ToolTipEvents whenever the
appropriate trigger action occurs.
||This is a JPanel subclass, which is used as the Component for many different WidgetContainers.