[vtkusers] Problem QVTKWidget using vtkCarbonRenderWindow instead of vtkCocoaRenderWindow

[Elvis Dowson]

Hi Clinton,
                        Would you happen to know who implemented the  
Carbon support for vtk on MacOSX? Will it be really difficult to  
change it? From the vtk side, it appeared to be cleanly partitioned  
and although I didnt go beyond the QVTK plugin, an implementation for  
vtkCocoaRenderWindow appeared to be there (didn't check the  
implementation, through).

So, my first question, will vtk-5.3 work out-of-the-box with Cocoa?

If yes, then I guess it's just a matter of fixing the QVTK  
implementation, plus finding a way to switch between Carbon and Cocoa  
implementations.

Best regards,

Elvis Dowson

On Sep 23, 2008, at 8:15 PM, clinton at elemtech.com wrote:

>
> Nearly all the Mac specific code in there is for Carbon, and works  
> around
> Carbon limitations.
> Its probably going to be more like replacing the
> #ifdef Q_WS_MAC
> with a flag that indicates a Mac/Carbon Qt, and only call that code  
> with
> Carbon.  Ideally, that flag would come from something like  
> qglobal.h.  If
> not, we should ask Trolltech to put a #define in there to help  
> people switch
> from Carbon to Cocoa.
> At that point, it should theoretically work with Cocoa.
>
> Clint
>
>>
>> Elvis, you are _probably_ in brand new territory at this point. I
>> certainly have not tried anything with Qt 4.5 (I don't have the  
>> time),
>> let alone with VTk thrown into the mix.
>>
>> Theoretically all you should have to do is Build Qt 4.5. Build VTK  
>> with
>> Cocoa support instead of Carbon Support. The rest _should_ work.  
>> Let the
>> list know what you find out.
>>
>> Mike
>>
>> Elvis Dowson wrote:
>>> Hi Mike,
>>>                   There is an alpha release of Qt-4.5 on the troll
>>> tech website. Here is the link:
>>> http://trolltech.com/company/newsroom/announcements/press.2008-06-09.7117
>>> 549806/?searchterm=Qt%204.5
>>>
>>>
>>> Could you guide me on what I should do to modify vtk to support  
>>> Qt-4.5
>>> using Cocoa? I'm basically trying to get the QVTK plugin to compile
>>> correctly and use the Cocoa framework.
>>>
>>> Best regards,
>>>
>>> Elvis Dowson
>>>
>>> On Sep 23, 2008, at 5:36 PM, Mike Jackson wrote:
>>>> Qt 4.5 will be based on Cocoa (That is the current news from TT).  
>>>> Qt
>>>> 4.4 is CARBON based so you will have to build VTK using Carbon=ON  
>>>> if
>>>> you want to use Qt. As far as supporting Cocoa/Qt in the future I  
>>>> am
>>>> not sure if anyone has really looked at it yet. _IF_ TrollTech does
>>>> deliver Qt/Cocoa for Qt 4.5 then the test is pretty simple. If  
>>>> the Qt
>>>> Version is less than 4.5 then use Carbon. If it is 4.5 or above use
>>>> Cocoa. This can be detected in CMake and set accordingly.
>>>>
>>>> Q_WS_MAC is defined by Qt in its header files.
>
>