On Sat, Aug 23, 2014 at 7:38 AM, Michael Torrie <torr...@gmail.com> wrote: > On 08/22/2014 02:06 PM, Marko Rauhamaa wrote: >> I tend to think the opposite: C++ barely has a niche left. I definitely >> wouldn't want to use C++ very far from its (very narrow) sweet spot. > > I agree that it's niche is narrowing. But it's still pretty wide and > widely used. Many adobe products are C++, for example. OpenOffice and > LibreOffice is C++. You could argue that's because they are old > projects and were started in C++. But honestly if you were > reimplementing OpenOffice today what would you choose? Python would be > appropriate for certain aspects of OO, such as parts of the UI, macros, > filters, etc. ...
Frankly, I wouldn't write OO in anything, because I think the entire concept of a WYSIWYG editor is flawed. Much better to use markup and compile it. But if I were to write something like that, probably what I'd do would be to write a GUI widget in whatever lowish-level language is appropriate (probably C, with most GUI toolkits), and then use a high level language (probably Python or Pike) to build the application. I'm not familiar with all of OO/LO's components, but I believe that model will probably work for all of them (the document editor, obviously; the presentation editor might be done a bit differently, but it'd still work this way; the spreadsheet quite possibly doesn't even need a custom widget; etc). >> My disillusionment with C++ came from the language's inability to >> represent callbacks. C can do it (void *), C# can do it (delegates), >> Java can do it (anonymous inner classes), Python can do it (methods), >> Scheme can do it (closures). > > C++ can do it quite well, actually. Maybe not quite as nicely as > Python. But boost and libsigc++ both offer nice, type-safe ways to > implement signals and slots. You can pass references to a callback > around in an easy, safe way. My main issue with callbacks in either C or C++ is that functions aren't first-class objects. You can pass function pointers around (and you don't need (void *) to do it, you can use typed function pointers just fine), but you can't actually construct a function at run-time. ChrisA -- https://mail.python.org/mailman/listinfo/python-list
