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Cocoa/Windows parallel dvlpmt
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Cocoa/Windows parallel dvlpmt

I have been happily developing in Cocoa using XCode 1.1. But I have to port to Windows, very quickly. I want to keep my duplication of effort to a minimum, so that I can maintain and enhance both products efficiently.

I've read through the archives, and have come to the conclusion that I should do the interface of my CAD-like (but with lots of internal math) application in two parallel universes: Cocoa/XCode and MFC/Visual C++. I've used MacApp in the distant past, and assume that the MFC experience will be similar. I used CodeWarrior and PowerPlant for about a year, but dropped it this past June when I got the impression that it wasn't any longer (if it ever was) the best way to do cross-platform. (I also switched to Cocoa this past June.)

I know almost nothing of Windows, MFC, Visual C++, etc. I have no idea how (or if) they implement multiple Undo, for instance. I have never touched Windows, and don't have a Windows machine; I figure I'd start with Virtual PC for Mac.

I am not sure if I should have two separate models (in the MVC sense). In Cocoa I could use NSMutableArray, and each of my objects could be an NSObject subclass, which is what I have now. In Windows I'd have some parallel. Or should I use STL lists or vectors, and then in Cocoa have a model object which owns the STL list of raw C++ objects, and do likewise in Windows. For actions upon my objects, I'd perhaps use some Objective-C wrapper in Cocoa as I operate on each individual object. That might, however, be very inefficient.

I'm stabbing in the dark.

Any pointers, guidance, etc. would be greatly appreciated. When I have more cash, I'll hire someone who knows what they're doing.

Bye...Erez
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