2010/4/14 Philippe Crave <philippe.cr...@gmail.com> > Hi, > > in a class, I have a QStateMachine, with some QState. > I would like to make a targetless transition for one state. > I followed the documentation here > http://qt.nokia.com/doc/4.6/statemachine-api.html#targetless-transitions > > it works well if the initial event that launch the targetless transition > does not include any variables. > but now, I emit an event with an increment from a wheelEvent. > self.emit(SIGNAL("wheelEvent(int)"), inc) > I do not know how to propagate that value from that event to the target > slot function self.change_drive. > > actually, I get this error message: > TypeError: change_drive() takes exactly 2 arguments (1 given) > > here is a part of my class > ... > t = QSignalTransition(self, SIGNAL("wheelEvent(int)")) > self.state_in.addTransition(t) > self.connect(t, SIGNAL("triggered()"), self.change_drive) > > @pyqtSignature("int") > def change_drive(self, v): > print 'change_drive', v > > def wheelEvent(self, e): > inc = cmp(e.delta(), 0) * -1 > self.emit(SIGNAL("wheelEvent(int)"), inc) > > thank you > > _______________________________________________ > PyQt mailing list PyQt@riverbankcomputing.com > http://www.riverbankcomputing.com/mailman/listinfo/pyqt >
I think this is happening because the "triggered()" signal doesn't emit any argument. So, the callback is not receiveing any argument but the "self" argument. Probably that is the reason. I hope this helps you. Regards, Thiago Zanetti
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