[vtk-developers] [ParaView3-Developer] [InfoVis] VTK_USE_QT

[Jeff Baumes]

I did the first part of this fix by removing VTK_HAS_QT. I don't think
we'll have an overabundance of errors (yet) if Qt is not found, but if
that happens we can make sure CMake bails out when Qt is not found.

Jeff

On Thu, Apr 16, 2009 at 11:31 AM, Jeff Baumes <jeff.baumes at kitware.com> wrote:
> Let's remove VTK_HAS_QT and maybe enforce that FindQt works, and
> immediately bail out if it doesn't.
>
> Jeff
>
> On Fri, Apr 10, 2009 at 7:41 PM, Utkarsh Ayachit
> <utkarsh.ayachit at kitware.com> wrote:
>> VTK_HAS_QT is just for convenience. It QT dependent files are included
>> before Qt is found, cmake tends to spit out too many errors that hide
>> the fact that what's missing is merely Qt. So VTK_HAS_QT. I am not too
>> keen on it either, and I don't have any hesitation removing it. We can
>> simply use VTK_USE_QT and it should work fine.
>>
>> VTK_USE_QT cannot merely replace VTK_USE_QVTK , since VTK_USE_QVTK
>> includes compilation of QVTKWidget which needs Rendering which is
>> optional. That's the reason for creation of this new VTK_USE_QT as
>> well.
>>
>> On Fri, Apr 10, 2009 at 4:26 PM, Timothy M. Shead <tshead at sandia.gov> wrote:
>>> Utkarsh Ayachit wrote:
>>>>
>>>> As per the request, I've committed changes to VTK to add a new top
>>>> level option VTK_USE_QT. When this option is set and Qt is found,
>>>> VTK_HAS_QT is set. The internal cmake files can then use the value of
>>>> this cache variable to add files that depend on Qt.
>>>>
>>>
>>> Why the distinction between USE_QT and HAS_QT?  We don't seem to do this for
>>> other optional libraries (such as boost) ...
>>>
>>> Also, it seems as if USE_QT should replace USE_QVTK, and we might look at
>>> whether GUISUPPORT still makes sense ...
>>>
>>> Cheers,
>>> Tim
>>>
>>>
>>> --
>>> Timothy M. Shead
>>> Data Analysis & Visualization (1424)
>>> Sandia National Laboratories
>>> 505-284-0139
>>>
>>>
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>>
>
>
>
> --
> Jeff Baumes, Ph.D.
> R&D Engineer, Kitware Inc.
> (518) 881-4932
> jeff.baumes at kitware.com
>



-- 
Jeff Baumes, Ph.D.
R&D Engineer, Kitware Inc.
(518) 881-4932
jeff.baumes at kitware.com