how to apply Design Pattern [Command] in Qt/KDE?

[Dung Patrick]

I have read:

1.
Design Patterns: Elements of Reusable Object-Oriented Software", by Erich Gamma, Richard Helm, Ralph
2.
Java Design Patterns A Tutorial by James. W Cooper

Both books talked about many useful design pattern. But I want to apply the design pattern in Qt (Command Pattern) but cannot get any hints. For Java, it has a ActionLisntener to call the execute method. How to do this with the signal and slot in Qt?


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