[vtkusers] Mac debugging

[Yves Starreveld]

By way of summary:

vtkCocoaGLView.mm
- takes care of allocating an NSOpenGLView which simply provides a 
rendering context

vtkCocoaRenderWindow.mm
- interacts with the OSX Window manager to display a window and create 
its vtkCocoaGLView. These were separated to allow applications to do 
their own window management and just use vtkCocoaGLViews themselves 
(see Osirix...)

vtkCocoaRenderWindowInteractor.mm
-interacts with the event stream, trapping appropriate events and 
turning them into vtk events.

None of these classes do any drawing; once the context is set 
appropriately, the vtkOpenGLRenderer does it all.

Yves
On 10-Aug-04, at 1:44 PM, Eugene Kim wrote:

> Hi Chris,
>
>   Right, I have seen the vtkCocoa---- files, and I know they are the 
> ones
> which interact directly with the C++ code.  What I can't determine is 
> the
> other side of the problem... what is interacting with these files?  Are
> these files the ones which are directly communicating with Cocoa to 
> draw
> to the screen?
>
> Thanks,
> Eugene
>
> On Tue, 10 Aug 2004, Chris Scharver wrote:
>
>> On Aug 9, 2004, at 3:59 PM, Eugene Kim wrote:
>>
>>> Does anyone know which classes call the objective-C files?
>>
>> VTK is actually using Objective-C++. vtkCocoaGLView is a Cocoa class
>> including some C++ calls in its implementation. On the other hand, the
>> classes vtkCocoaRenderWindowInteractor, vtkCocoaRenderWindow, and
>> vtkCocoaWindow are C++ classes which make some Objective-C calls (such
>> as to vtkCocoaGLView) in their implementations. The C++ classes store
>> void pointers which are then cast into the correct Objective-C classes
>> as needed.
>>
>> Hope this helps,
>> Chris
>> --
>> Chris Scharver
>> Electronic Visualization Laboratory
>> The University of Illinois at Chicago
>> Ph: 312-996-3002   FAX: 312-413-7585
>> <http://www.evl.uic.edu/scharver/>
>>
>>
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