On Friday 07 October 2011 15:14:33 Daniel Mendizabal wrote: > To All, >[...]
Hi, > But what happen now when new mobile phones come with Qt5 without QWidget > support? I wonder how the message could have been given so wrong. I'm not speaking for the Qt team. But while Qt team thinks QML is the technology to use in the future for interface and will spend all its development power in it, they aknoweldge that is is currently not yet ready for all uses. That mean that QWidget is NOT going away. It is not removed. It will stay. It is just that it will stay in maintainence mode, and not get many new features. > All existing projects based on this technology currently in OVI > store or private clients will stop working from one day to the other? No, as stated, QWidget stays. > When I started with Qt, I read about the promise to keep source and binary > compatibility across the releases, what happen with this promise? The promise is between minor releases, Qt5 is a major release, there is no compatibility promise at all. Qt 4.0 was a massive source compatibility break to previous version. But in comparison, in Qt 5.0, the source compatibility changes will be limited to the minimum > This promise was and still is reinforced by Nokia's marketing statement: > "Qt allows you to write advanced applications and UIs once, and deploy them > across desktop and embedded operating systems without rewriting the source > code saving time and development cost" So it will be with QML > I want to clarify that I'm not against QML/JavaScript, it could be an > interesting approach to bring more (Java) developers into the pool. But I > don't think, this is a fair and responsible decision from Qt's board to > leave so many developers and current projects in the situation described > above. > > I hope there is still room for changes and QWidgets classes are finally > included for mobile platforms in Qt5. Because porting existing and complex > applications with thousands of lines of code which have been optimized for > so long with bug fixes and upgrades would be economically not interesting > nor I could have the heart to re-do all my work again. Qt5 is opensource, and merge requests are accepted. And you might have seen Nokia's plan to open the develoment process even more. That means if you or anyone else still interrested in QWidget want to add feature, they still can. The question is if it this is a good thing to spend time on QWidget. > On the other hand, what happen with the users who purchased these > applications from OVI store? Will they loose them as soon as their devices > are upgraded to Qt5...? The symbian devices are not going to be upgraded to Qt5. And if Qt5 comes on those devices, it will be in addition to Qt4. _______________________________________________ Qt5-feedback mailing list [email protected] http://lists.qt.nokia.com/mailman/listinfo/qt5-feedback
