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Re: Ideal way to separate GUI and logic?

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Date Sat, 13 Jul 2013 15:56:20 +0200
From Roland Koebler <r.koebler@yahoo.de>
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Subject Re: Ideal way to separate GUI and logic?
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Hi,

> But how then do I separate out the logic and the GUI?
I usually write a library (C library, Python module, ...) which contains
the logic.

Then, I write a GUI (in a separate file), which imports and uses the library.
If I need another UI (e.g. GUI with an other toolkit, or a text-based or
HTML5-based interface), I simply write another UI (in a separate file), and
import+use the library again.

That's the cleanest way to separate user-interface and logic in my
opinion. (But keep in mind that it's not always obvious which parts
belong to the library and which belong to the GUI, and you sometimes
have to carefully think about it.)

Oh, and yes, you can do nice things then, e.g. remote-GUIs by transparently
tunneling all calls from the GUI to the library through RPC over a network
(like I have done with a GTK+-GUI for Raspberry Pi; the GUI runs on the PC,
uses JSON-RPC over TCP-sockets and calls functions on the RPi).


regards,
Roland

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Thread

Ideal way to separate GUI and logic? fronagzen@gmail.com - 2013-07-13 04:07 -0700
  Re: Ideal way to separate GUI and logic? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-07-13 11:43 +0000
  Re: Ideal way to separate GUI and logic? Roland Koebler <r.koebler@yahoo.de> - 2013-07-13 15:56 +0200
  Re: Ideal way to separate GUI and logic? Dave Cook <davecook@nowhere.net> - 2013-07-13 17:40 +0000
  Re: Ideal way to separate GUI and logic? Wayne Werner <wayne@waynewerner.com> - 2013-07-13 14:03 -0500
    Re: Ideal way to separate GUI and logic? fronagzen@gmail.com - 2013-07-14 17:24 -0700
    Re: Ideal way to separate GUI and logic? fronagzen@gmail.com - 2013-07-14 17:25 -0700
      Re: Ideal way to separate GUI and logic? Joel Goldstick <joel.goldstick@gmail.com> - 2013-07-14 21:02 -0400
        Re: Ideal way to separate GUI and logic? Roy Smith <roy@panix.com> - 2013-07-14 21:30 -0400
      Re: Ideal way to separate GUI and logic? Steven D'Aprano <steve@pearwood.info> - 2013-07-15 01:44 +0000
  Re: Ideal way to separate GUI and logic? asimjalis@gmail.com - 2013-07-15 10:06 -0700
    Re: Ideal way to separate GUI and logic? fronagzen@gmail.com - 2013-07-15 17:25 -0700
      Re: Ideal way to separate GUI and logic? Owen Marshall <o@owenmarshall.invalid> - 2013-07-16 00:42 +0000
      Re: Ideal way to separate GUI and logic? Asim Jalis <asimjalis@gmail.com> - 2013-07-15 18:02 -0700
      Re: Ideal way to separate GUI and logic? Chris Angelico <rosuav@gmail.com> - 2013-07-16 13:18 +1000

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