How did you factor out the application logic from the UI rendering?

On 30 Jan 2014, at 21:16, Jo Meder <jome...@ihug.co.nz> wrote:

> Hi,
> 
> Language philosophy aside, our application is a largish cross platform (Mac, 
> Windows, Linux) application written in C++. The UI framework uses Cocoa for 
> the Mac back end, which means we're using Objective-C++ to interface with 
> Cocoa. I've recently, at long last, been able to upgrade from Xcode 3 to 
> Xcode 5. I had to make very few changes to the Objective-C++ code to get it 
> to work. In fact it was so minor I've forgotten what it was exactly, 
> something to do with the way I was making forward declarations of some 
> Objective-C objects in headers that were shared by C++ and Objective-C++ code 
> IIRC. Anyway, it wasn't any big drama. All my work was based on the various 
> Objective-C++ resources available in late 2010, which was when I ported the 
> UI framework to Cocoa from Carbon. There are some newer language features 
> such as ARC which I'm not using, so I don't know what effect that might have. 
> Essentially though, Xcode 5 and Objective-C++ are no problem.
> 
> Regards,
> 
> Jo Meder
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