Mitch Curtis schreef op 26-11-2013 9:59: > On 11/25/2013 03:30 PM, Nurmi J-P wrote: >> On 25 Nov 2013, at 14:57, Graham Labdon <graham.lab...@avalonsciences.com> >> wrote: >> >>> Hi >>> I am trying to animate the movement of one of my widgets >>> I have a simple Qt app consists of a main window with a label (done in >>> QDesigner) >>> The code to move the label is >>> QPropertyAnimation animation(ui.label,"geometry"); >>> animation.setDuration(10000); >>> animation.setStartValue(ui.label->rect()); >>> QRect end = QRect(ui.label->rect().x() - 10,ui.label->y() - >>> 10,ui.label->rect().width(),ui.label->rect().height()); >>> animation.setEndValue(end); >>> animation.start(); >>> >>> Now this does move the label but it is move instantly whereas I thought >>> that by specifying a duration , this would be how long it took to do the >>> animation. >>> >>> I would be grateful if some could explain what I am doing wrong >> Hi, try allocating the animation on the heap so that it won’t get >> immediately destructed according to the normal C++ scoping rules. > Perhaps the documentation shouldn't construct it on the stack if that's > not how it's meant to be used: > > http://doc-snapshot.qt-project.org/qt5-stable/animation-overview.html#animating-qt-properties > > I can see that the person writing that example probably did it in > main(), but that's not how most people will be using it. Should I submit > a patch? I'm not sure if creating on the heap is the usual pattern either. I usually have my animations as members in an object, not created separately on the heap.
André _______________________________________________ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
