Behavioral Design Patterns in C++ - DialogBox - IV

The video tutorial explains the interaction between widget classes and the issues of tight coupling, which makes reuse difficult. It introduces the mediator design pattern to decouple these classes, using the dialog as the mediator. The tutorial covers modifying widget classes, implementing the command interface, handling events, and simulating user actions. It concludes with a comparison of class diagrams, highlighting the benefits of the mediator pattern in reducing dependencies and enhancing reusability.

What is the significance of using inheriting constructors in the widget subclasses?

Explain how the command interface is implemented in the dialog class.

How does the class diagram change when using the mediator pattern compared to the earlier application?