Qt-interest Archive, July 2007
Standalone Object Inspector for Qt 4?
Message 1 in thread
In the Qt solutions catalog, there is an Object Inspector[1] that can
connect to a running Qt application and tell you various things about it. Is
there a similar tool for Qt 4? I know that Qt Designer has something called
an "object inspector", but I don't believe that can be used with a running
application.
[1]
http://trolltech.com/products/qt/addon/solutions/catalog/3/Tools/qtobjectinspector/
Thanks,
Tom
Message 2 in thread
Tom Panning wrote:
> In the Qt solutions catalog, there is an Object Inspector[1] that can
> connect to a running Qt application and tell you various things about
> it. Is there a similar tool for Qt 4? I know that Qt Designer has
> something called an "object inspector", but I don't believe that can
> be used with a running application.
> [1]
> http://trolltech.com/products/qt/addon/solutions/catalog/3/Tools/qtobjectinspector/
>
>
It's actually trivial to write your own with Qt's QAbstractItemModel.
It's easy since QObject is natively a doubly linked tree. You get
parent() and children(). You can use this in your model implementation
to view a QObject as a tree without caching any data. If I get some
time today I might post an example of this. It's quite easy.
--Justin
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email;internet:justin@xxxxxxx
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Message 3 in thread
Justin Noel wrote:
> Tom Panning wrote:
>> In the Qt solutions catalog, there is an Object Inspector[1] that can
>> connect to a running Qt application and tell you various things about
>> it. Is there a similar tool for Qt 4? I know that Qt Designer has
>> something called an "object inspector", but I don't believe that can
>> be used with a running application.
>> [1]
>> http://trolltech.com/products/qt/addon/solutions/catalog/3/Tools/qtobjectinspector/
>>
>>
>>
>
> It's actually trivial to write your own with Qt's QAbstractItemModel.
> It's easy since QObject is natively a doubly linked tree. You get
> parent() and children(). You can use this in your model implementation
> to view a QObject as a tree without caching any data. If I get some
> time today I might post an example of this. It's quite easy.
>
> --Justin
Oh wait. I was thinking object inspector window from Designer there... A
stand-alone debugger style application is going to be much more
difficult. ;)
--Justin
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begin:vcard
fn:Justin Noel
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email;internet:justin@xxxxxxx
title:Sr. Consulting Engineer / Certified Qt Instructor
tel;work:(617) 621-0060
url:http://www.ics.com
version:2.1
end:vcard
Message 4 in thread
On 7/10/07, Justin Noel <justin@xxxxxxx> wrote:
>
> Justin Noel wrote:
> > Tom Panning wrote:
> >> In the Qt solutions catalog, there is an Object Inspector[1] that can
> >> connect to a running Qt application and tell you various things about
> >> it. Is there a similar tool for Qt 4? I know that Qt Designer has
> >> something called an "object inspector", but I don't believe that can
> >> be used with a running application.
> >> [1]
> >>
> http://trolltech.com/products/qt/addon/solutions/catalog/3/Tools/qtobjectinspector/
> >>
> >>
> >>
> >
> > It's actually trivial to write your own with Qt's QAbstractItemModel.
> > It's easy since QObject is natively a doubly linked tree. You get
> > parent() and children(). You can use this in your model implementation
> > to view a QObject as a tree without caching any data. If I get some
> > time today I might post an example of this. It's quite easy.
> >
> > --Justin
>
> Oh wait. I was thinking object inspector window from Designer there... A
> stand-alone debugger style application is going to be much more
> difficult. ;)
Yeah, I had already done what you described (and made it so that I could set
the object properties using the Qt Property Browser solution), but I haven't
added the ability to track signals and slots. Also, my object tree and
property browser don't update in real time. While I could probably do all
this, there's no point in reinventing the wheel. Since Trolltech has already
done all this for Qt 3, it seems logical that there would be a similar tool
for Qt 4.
Thanks for your reply,
Tom
Message 5 in thread
On 7/10/07, Tom Panning <lurchvt@xxxxxxxxx> wrote:
Since Trolltech has already
> done all this for Qt 3, it seems logical that there would be a similar tool
> for Qt 4.
One issue I recall from considering how to port KSpy (which is a
similar tool) is that there is no (public) way to access the root
QObjects in Qt 4. You can only access the root widgets.
Cheers
Rich.
--
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