How do manage a large data structure manipulated by tonnes of widgets, with logic applied throughout

[Deckhead]

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[Pl45m4]

@Deckhead said in How do manage a large data structure manipulated by tonnes of widgets, with logic applied throughout:

I looked at Model/View, but I can't see that this is what I want. Or if it is I don't see how it would work

Not sure if I understood everything above but this sounds like a case for a proper data model.
One model to hold all the information and then you have multiple widget across your app to modify bits of it...
And to update you just have to make sure the model/view/editor is consistent. No need to manually tell 100 widgets that option X has changed if they all refer to the same data