[Ctk-developers] XDOM - decorator pattern

[Marco Viceconti]

Sorry I missed this point.

Ok, I trust the group on this decision.  By the way this also clear a  
similar decision we are now taking inside MAF3 on whether to use  
QtObject.

I presume that no one disagree with the second statement in my email:  
"Even if we agree [to use Qt core], would not be better to ensure that  
CTK is not ridden of Qt
code, and find solutions such as the wrapping of the QtObject class  
into a CTK Class?

thanks Stephen.

Marco



Il giorno 9 Nov 2009, alle ore 14:25, Stephen Aylward ha scritto:

> 1) QtCore will supply system-level functions.   "If a function we need
> exists in Qt, then we should use it"
>
> 2) QtGUI is optional
>
> It was more clearly stated in out meeting notes:
>  http://www.na-mic.org/Wiki/index.php/Events:CTK-Workshop-June-2009
> See the section called "Technical Aspects."
>
> s
>
> On Mon, Nov 9, 2009 at 2:02 AM, Marco Viceconti <viceconti at tecno.ior.it 
> > wrote:
>> Worth to be said because when we agreed to use Qt, I am sure most  
>> of us were
>> thinking of the GUI, and not of a class from which every other  
>> class in the
>> framework would inherit.
>>
>> So before we carry on, at the cost of being pedantic, let me pose  
>> this
>> question to the whole CTK group:
>>
>> Qt provide a portable GUI framework, that we agreed to adopt in CTK.
>>
>> But it also provides some interesting low-level mechanisms, in  
>> particular a
>> extensive multi-threading library and inter-object communication  
>> mechanism.
>>  Do we all agree that also this part of Qt can be used to build CTK?
>>
>> Even if we agree, would not be better to ensure that CTK is not  
>> ridden of Qt
>> code, and find solutions such as the wrapping of the QtObject class  
>> into a
>> CTK Class?
>>
>> Cheers
>>
>> Marco
>>
>>
>>
>> Il giorno 8 Nov 2009, alle ore 12:07, Marco Nolden ha scritto:
>>
>>> Marco Viceconti wrote:
>>>>
>>>> I suspect that the mechanism our colleagues in INRIA described at  
>>>> the
>>>>  CTK meeting in Oxford is strongly based on the ability of  
>>>> QTObjects  and
>>>> derivative to exchange messages, making simple and efficient the   
>>>> use of
>>>> message-passing mechanisms.  This however creates a strong   
>>>> dependency onto
>>>> QT, which we might want to discourage in CTK (we  should remember  
>>>> QT already
>>>> changed license model 2 times :-) ).
>>>>
>>>>
>>> Dear Marco,
>>>
>>> at the first CTK meeting in Heidelberg we agreed on using Qt in  
>>> CTK, since
>>> everyone is already using it. This does not necessarily include  
>>> the Qt GUI
>>> classes, but the Qt Core module which offers the message-passing  
>>> mechanisms.
>>> Of course such a strong dependency should always be discussed, but  
>>> I'm not
>>> afraid of any licensing changes anymore.
>>>
>>> Regards
>>>
>>> Marco (the other one)
>>>
>>> --
>>> ----------------------------------------------------------------------
>>> Dipl.-Inform. Med. Marco Nolden
>>> Deutsches Krebsforschungszentrum       (German Cancer Research  
>>> Center)
>>> Div. Medical & Biological Informatics          Tel: (+49) 6221-42  
>>> 2325
>>> Im Neuenheimer Feld 280                        Fax: (+49) 6221-42  
>>> 2345
>>> D-69120 Heidelberg                             eMail: M.Nolden at dkfz.de
>>>
>>>
>>>
>>>
>>>
>>>
>>
>> --------------------------------------------------
>> MARCO VICECONTI, PhD                             (viceconti at tecno.ior.it 
>> )
>> Laboratorio di Tecnologia Medica              tel.   39-051-6366865
>> Istituto Ortopedico Rizzoli                            fax.    
>> 39-051-6366863
>> via di Barbiano 1/10, 40136 - Bologna, Italy
>>
>> Tiger! Tiger! Burning bright in the forest of the night,
>> what immortal hand or eye could frame thy fearful symmetry?
>> --------------------------------------------------
>> Opinions expressed here do not necessarily reflect those of my  
>> employer
>>
>>
>>
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>>
>
>
>
> -- 
> Stephen R. Aylward, Ph.D.
> Director of Medical Imaging Research
> Kitware, Inc. - North Carolina Office
> http://www.kitware.com
> stephen.aylward (Skype)
> (919) 969-6990 x300
>

--------------------------------------------------
MARCO VICECONTI, PhD                              
(viceconti at tecno.ior.it)
Laboratorio di Tecnologia Medica              tel.   39-051-6366865
Istituto Ortopedico Rizzoli                            fax.    
39-051-6366863
via di Barbiano 1/10, 40136 - Bologna, Italy

Tiger! Tiger! Burning bright in the forest of the night,
what immortal hand or eye could frame thy fearful symmetry?
--------------------------------------------------
Opinions expressed here do not necessarily reflect those of my employer