how to implement undo functionn by using both Command and Memento design pattern
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Hello guys, i'd like to implement the undo and redo function(like Undo and Redo in MS Word) by combination Command and Memento design pattern. I've found a quite useful article about this but it did not mention Memento.Can anyone tell me how to combine these two design pattern?I've also searched around but these articles are either about Command or Memento not both of them. Thank you
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Hello guys, i'd like to implement the undo and redo function(like Undo and Redo in MS Word) by combination Command and Memento design pattern. I've found a quite useful article about this but it did not mention Memento.Can anyone tell me how to combine these two design pattern?I've also searched around but these articles are either about Command or Memento not both of them. Thank you
It's not common to combine the two patterns to perform Undo/Redo. I would suppose that you would need to identify against each action whether or not it was specified with a Memento or a Command. This is not a good design.
Deja View - the feeling that you've seen this post before.