Hi all, I just released a new version of Calculate. I know I missed the feature freeze by about a week, but I was still quite busy finishing the code refactoring. Available at: XO: <a href="http://dev.laptop.org/%7Erwh/calculate/Calculate-26.xo" target="_blank">http://dev.laptop.org/~rwh/calculate/Calculate-26.xo</a> tarball: <a href="http://dev.laptop.org/pub/sugar/sources/Calculate/Calculate-26.tar.bz2" target="_blank">http://dev.laptop.org/pub/sugar/sources/Calculate/Calculate-26.tar.bz2</a> Many things are improved, from NEWS with a bit more comment: * Move to new equation parser based on python ast Calculate now uses the internal python parser to create an Abstract Syntax Tree (ast). The tree for an equation is evaluated by Calculate itself, so that operators (mostly divide) can give different results from standard python (e.g. return Rational numbers). The way functions, help and constants are included is also much improved and easier to extend by modifying the files functions.py and constants.py. Speed increase is about a factor 10, especially noticeable when plotting. (It's also less code and easier to maintain!) * Refactor sharing This is a major improvement and simplifcation. I recommend other activity authors and sugar developers to have a look at shareable_activity.py. This provides a class to easily create activities that can be shared (by inheriting from ShareableActivity). It automatically sets-up a DBus tube and a service to communicate between a shared instance. Communication is exposed by the function send_message('message_name', param1=1, param2=2, ...) that can be processed on the other end through a registered callback or by overloading the function message_received(). I think this could really be sufficient for most Activities. I tested on 767 but it is also compatible with newer api. This could also be a good reason to use shareable_activity.py: keep sugar-sharing-api-version voodoo out of the main activity code and keep it more readable. It could result in less overall duplicate code (a good thing!). * Refactored equation drawing code Adding an equation was slow due to the whole list being regenerated. This is not the case anymore. * Add languages: bi, cs, en_US, fi, he, hu, sk, sv, sw, wa This is a development release and I expect a few bugs; if you find any, please report them. Testing is appreciated! I'm aware that I probably should move this code over to sugarlabs; however, I think I don't have access there yet. Marco, Tomeu, Simon, Bernie, any pointers? Regards, -- Reinier Heeres Waalstraat 17 2515 XK Den Haag The Netherlands Tel: +31 6 10852639