[Qt-creator] QML Debug Window

Stephen King Stephen.King at domino-uk.com
Wed Feb 13 10:34:55 CET 2013


Hi,

Thanks for the info, my main concern was just to check that they are ghost objects and not a mistake in my QML code (which is always likely!).

The debugger log is very busy, so I won't post it, but I can confirm that when a new value comes into that view the QML objects are updated.

Regards,
Steve

________________________________
From: Jana Aurindam [mailto:Aurindam.Jana at digia.com]
Sent: 13 February 2013 09:21
To: Stephen King
Cc: qt-creator at qt-project.org
Subject: Re: [Qt-creator] QML Debug Window

Hi,

The QML object tree in the debugger is "refreshed" when a new QML object is created. This means that sometimes the debugger may list "ghost" objects, i.e. objects that have been garbage collected but still exist in the debugger model.
We plan to track the lifetime of the QML objects in order to provide a better representation of the current state of the QML engine. However, I am planning to put this feature in Qt 5.1 release.

In your case, the QML debugger updates the model whenever a new List item is created. When you stop scrolling, there are no new objects being created and hence the model is not updated.
It would be helpful if you can paste the debugger log (Windows->Views>Debugger Log) to get a better overview.

~Auri


Aurindam Jana, Software Engineer - Digia, Qt
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