On Wednesday 14 October 2015 23:10:56 Olivier Goffart wrote: > On Wednesday 14. October 2015 13:53:03 Thiago Macieira wrote: > > On Wednesday 14 October 2015 14:22:13 Dustin Mitchell wrote: > > > Hello, > > > > > > Are there plans to support microseconds in the QTime class? I need to > > > parse > > > timestamps from a text file and it has microsecond resolution. If not, > > > I'd > > > be willing to implement this feature. > > > > You'll have to wait for Qt 6. It's impossible to add it now. > > Not impossible, just a bit tricky.
It really is impossible. QTime has one member (an int), no d pointer and it has a lot of inline members that access that integer assuming it is a millisecond value. > One could add a Qt::TimerType which is of type "MicroSecondResolutionTimer" > which would change the meaning of the interval to be in microsecond. > > Then you would need a protected > QAbstractEventDispatcher::setSupportMicroSecondTimer that the capable > dispatcher would set to true. Qt would have to convert to milisecond if the > event dispatcher does not support this. He said QTime, not QTimer. For microsecond support in QTimer, I'd like to see <chrono> in use. With Qt 5.7 and QT_HAS_INCLUDE(<chrono>), that should be possible, since any and all use of std::chrono is inline anyway. As for the event dispatcher, please make sure that any solution you develop works with user-provided dispatchers that do not know about microsecond resolution. This may be an impossible task before Qt 6. -- Thiago Macieira - thiago.macieira (AT) intel.com Software Architect - Intel Open Source Technology Center _______________________________________________ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development
