[Qt-qml] Animation events

[michael.brasser at nokia.com]

On 24/09/2010, at 11:47 AM, ext Jason H wrote:
> I know I've asked something like this before, but I've never gotten anything to 
> work like I wanted. Plus it's mutated over time.
> I have a collection of components. I will start an animation in the first 
> component. When the animation completes, I want it to consult an external source 
> 
> (database, web URL, etc) to decide what component to run next, then run its 
> animation. And so on.
> 
> But I don't want one component calling the next because the call stack would 
> just keep increasing, I want a root element doing it 
> 
> all.
> //main.qml
> Rectangle{ 
>    id: root
>    width: 860
>    height: 540
>    Loader { source: "A.qml" }
>    Loader { source: "B.qml" }
>    function pickNext()
>    {
>        // pick nect
>    }
> }
> but the animation finishes and has no way (that I found) for the 
> animation in A.qml to inform the root element that it is time to pick the 
> next one.
> the Loader does not set the parent property of the loaded qml item.
> 
> If this were C++ I'd have the A.qml emit a signal, which would be caught by 
> root. 

Hi,

You should be able to use the Connections element to respond to signals emitted by a Loader's item:

//main.qml
Rectangle{ 
   id: root
   width: 860
   height: 540
   Loader { id: loader1; source: "A.qml" }
   Loader { id: loader2; source: "B.qml" }
   Connections {
      target: loader1.item
      onAnimationFinished: pickNext()
   }
   function pickNext()
   {
       // pick nect
   }
}

Regards,
Michael