[Interest] animation problems

Graham Labdon Graham.Labdon at avalonsciences.com
Mon Nov 25 15:33:05 CET 2013

Ah thanks!!

-----Original Message-----
From: interest-bounces+graham.labdon=avalonsciences.com at qt-project.org [mailto:interest-bounces+graham.labdon=avalonsciences.com at qt-project.org] On Behalf Of Nurmi J-P
Sent: 25 November 2013 14:30
To: Interest at qt-project.org
Subject: Re: [Interest] animation problems

On 25 Nov 2013, at 14:57, Graham Labdon <Graham.Labdon at 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.

    QPropertyAnimation *animation = new QPropertyAnimation(ui.label,"geometry");

J-P Nurmi

Interest mailing list
Interest at qt-project.org

More information about the Interest mailing list