[Qt-qml] QML Slot

[aaron.kennedy at nokia.com]

Hi,

Perhaps there was a bug in earlier releases, but it seems to be working now (see attached example).

Cheers,

Aaron


On 16/07/10 9:58 PM, "ext Ivan De Marino" <ivan.de.marino at gmail.com> wrote:

I do use that.
I'm talking about the scenario that Almo (was Almo?) described: u make ur object, u expose it as a property in the Context, try to connect to it's "onWhateverHappened" and you don't get the signal in QML.


On 16 July 2010 12:55,  <aaron.kennedy at nokia.com> wrote:
Hi,

You've never used onClicked?

All signals automatically become "on<Signal Name>" where the first letter in the signal is uppercased.  Likewise, all property change notifiers automatically become "on<Property Name>Changed" where the first letter in the property is uppercased.  To avoid conflicts, properties and signals that start with an uppercase letter are ignored.

Anything else is a bug.

Cheers,

Aaron

On 16/07/2010, at 9:37 PM, "ext Ivan De Marino" <ivan.de.marino at gmail.com> wrote:

(trying to bring back the main topic of this thread)

I think you can't connect to signals like that if you DON'T use a Q_PROPERTY() macro.

At least in my experience, I never managed to connect to a signal into QML, if not the ones that are related to Q_PROPERTY-ies.

If anyone finds a solution to this, I'm interested as well.

On 14 July 2010 09:48, Almo  Nito < <mailto:AlmoNito at gmx.de> AlmoNito at gmx.de> wrote:
I tryed that with the following Result:

Cannot assign to non-existent property "onChangedDir"


signals: void ChangedDir();
The Object is Registered using ctxt->setContextProperty("CommObject",_COMM);

i can access  the functions from QML and access its properties but i can NOT connect to a signal

Any Ideas?



-------- Original-Nachricht --------
> Datum: Wed, 14 Jul 2010 01:37:11 +0200
> Von:  <mailto:michael.brasser at nokia.com> michael.brasser at nokia.com
> An:  <mailto:AlmoNito at gmx.de> AlmoNito at gmx.de
> CC:  <mailto:qt-qml at trolltech.com> qt-qml at trolltech.com
> Betreff: Re: [Qt-qml] QML Slot

> Hi Almo,
>
> On 14/07/2010, at 6:30 AM, ext Almo Nito wrote:
> I would like to know how i can connect to a Signal in QML if the object
> was not instanced from QML:
>
> Im having an Object _COMM;
>
> That was registered using:
> ctxt->setContextProperty("CommObject",_COMM);
>
> I can actually use CommObject.doMyInvolkeMethod() in QML
>
> But how do I connect to a signal that gets emmited that instace of _COMM
> in QML?
>
> You should be able to use the Connections element for this
> ( <http://doc.qt.nokia.com/4.7-snapshot/qml-connections.html> http://doc.qt.nokia.com/4.7-snapshot/qml-connections.html):
>
> Connections {
>     target: CommObject
>     onMySignal: console.log("here I am!")
> }
>
> Regards,
> Michael
>

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