Signals and slots vs observer

@lukasm said in Signal-slot-mechanism vs. observer pattern - Good practice: Years ago I learnt about the observer pattern, where we usually have some class (the subject) which is observed by some observer. The observers register to the subject, and if th...

c++ - How to use signals and slots for observer pattern ... So, in terms of signals and slots. The basics are that you connect signals to slots, which will be called each time the signal they're connected to is emitted. You will find that it is very easy to use in the Observer pattern : just create a signal in the Observable that will be connected to the slot of each Observer used to update it. Signal-slot-mechanism vs. observer pattern - Good practice ... As @SGaist said in Signal-slot-mechanism vs. observer pattern - Good practice: Note that in the case of signals and slots, the emitters don't care about what is connected to the signals they provide, it's not their responsibility. That's the beauty of it, you continue to be flexible, without losing anything.

Part XVI. Design Patterns - The Boost C++ Libraries

Signals and Slots. In Qt, we have an alternative to the callback technique: We use signals and slots. A signal is emitted when a particular event occurs. Qt's widgets have many predefined signals, but we can always subclass widgets to add our own signals to them. A slot is a function that is called in response to a particular signal. Signals and Slots - Dirk Vermeir

Signals and Slots - Dirk Vermeir

VTK: vtkEventQtSlotConnect Class Reference Manage connections between VTK events and Qt slots. vtkEventQtSlotConnect provides a way to manage connections between VTK events and Qt slots. C++ - Observer pattern | c++ Tutorial

Why I dislike Qt signals/slots

The Concept of "Hooks" and "Signals" — TYPO3 Explained latest (9 ...