alt Hacker NewsIt seems application state is mainly maintained in the widgets. Reminds me of Delphi. Is there a similar concept for representing state in a well-suited data structures, that can be created and composed visually like the UI widgets?
It seems application state is mainly maintained in the widgets. Reminds me of Delphi. Is there a similar concept for representing state in a well-suited data structures, that can be created and composed visually like the UI widgets?
Decker heavily emphasizes the concept of "reified data", representing information as tangible entities within a deck.
You can create "contraptions" as specialized data containers/editors for specific applications:
http://beyondloom.com/decker/decker.html#customwidgets
For example, "WigglyKit" offers several contraptions which operate on a shared convention for representing animated images:
http://beyondloom.com/decker/wigglykit.html
You can also represent composite data as a series of cards in a deck, or use cards as encapsulated "objects" that you communicate with via events:
http://beyondloom.com/blog/sketchpad.html#cardsarerecords
In a pinch, you can also easily encode arbitrary data in fields as a JSON superset with their ".data" attribute.