[vtk-developers] QVTKWidget

[Wylie, Brian]

John,

We are waiting to hear back from legal at TrollTech. Like many of us,
they are on vacation until next year. :)

Also just for clarification it's QVTK, vtkQt is a similar widget created
by Matthias Koenig. (I'm not sure what the license is) :)

The plan for QVTKWidget is that the license will fall under Kitware's
normal 'BSD like' license (and, in my non-legal opinion, that really
should be fine because development was done with a commercial license
for Qt and there is no Qt source code included with the widget).

But we have a good relationship with Trolltech and we want to keep it
that way, so it's better to be safe than sorry. Hopefully Trolltech will
give it their blessing and we can pop the widget source into the VTK
tree.

I'll send out a note to vtk-developers as soon as I hear anything.

Best,  

	Brian Wylie
	Sandia National Laboratories
	MS 0822 - Org 9227 - Building 880/A1-J
      (505) 844-2238   FAX (505) 845-0833
 

> -----Original Message-----
> From: John Biddiscombe (CSCS) [mailto:biddisco at cscs.ch] 
> Sent: Thursday, December 23, 2004 9:36 AM
> To: Wylie, Brian
> Subject: Re: [vtk-developers] QVTKWidget
> 
> Brian,
> 
> Is the plan still to commit the Qt stuff? If so any idea when 
> it might happen. I ask because I'm planning on filling a few 
> hours over christmas with a bit of gui design and would quite 
> like to play with any new vtkQt stuff. I have something that 
> works so it's not essential, but I was hoping your new 
> classes would appear...
> 
> cheers and Merry Xmas etc
> 
> JB
> 
> Wylie, Brian wrote:
> 
> >All,
> >
> >There are several QT/VTK widgets out there and I've tried them all...
> >
> >We have a guy working with us.. Clinton Stimpson from 
> ElemTech and he 
> >has put together a very nice implementation that IMHO is superior to 
> >other implementations....blah...blah...blah...
> >
> >Anyway I would like to add the class to VTK, and will do so 
> in a couple 
> >days unless I here otherwise.
> >
> >Here's a description from Clint...
> >
> >QVTKWidget is a package which allows putting a 
> vtkRenderWindow in a Qt 
> >GUI.  I know there are already a bunch out there, but I 
> didn't like any 
> >of them.  I thought they were too complicated and awkward for such a 
> >simple problem.  And also, VTK doesn't have any examples of 
> using a Qt 
> >GUI with VTK as it does with MFC and others.
> >
> >To be consistent with the other GUI/VTK integration 
> packages/examples.
> >I'd probably recommend putting QVTKWidget in 
> VTK/Examples/GUI/Qt along 
> >with a few examples of using it.
> >On the otherhand, it is more than just an example as it is usable in 
> >several projects as-is without any changes.
> >So, perhaps it goes under Utilities with an option to build it.
> >
> >It's design is more Qt-ish design than other Qt/VTK packages.  As a 
> >result, better Qt integration is possible.
> >The design philosophy is to let VTK do what it does best and 
> let Qt do 
> >what it does best.  The class name starts with 'Q' to emphasize the 
> >Qt-ishness of it.
> >
> >The design allows the following features:
> >1. Has a designer plugin for rapid development of GUI's using VTK.
> >2. Significantly less code than other Qt/VTK packages.
> >3. Can even use the same widget class with image viewer 
> classes in VTK.
> >4. Instead of using Qt's opengl extension, it uses VTK to initialize 
> >the
> >
> >windows.  As a result, QVTKWidget is "device independent".  For 
> >example,
> >
> >on Unix, one can use Mangled Mesa or OpenGL without rebuilding 
> >QVTKWidget and use them concurrently in the same application.
> >
> >Other features include
> >1. Works with all of VTK such as, 3d widgets, interactor 
> styles, scroll 
> >wheel events, etc..
> >2. Works and tested on Windows, Linux, MacOSX, HP-UX, IRIX, SunOS.
> >3. Supports reparenting (either at the Qt level, or by swapping 
> >instances of vtkRenderWindow).
> >4. Works with Qt3 and Qt4 (preview 2).
> >
> >There are also some examples in using it.
> >
> >*Note:  For the MacOSX, there are some exceptions.  I made 
> some AppleGL 
> >calls to make up for deficiencies in VTK and Qt3.  With Qt4, HIViews 
> >can
> >
> >be used, but VTK isn't ready for that yet.  Once VTK's 
> deficiencies are 
> >removed, then most of the MacOSX specific code goes away.
> >
> >
> >	Brian Wylie
> >	Sandia National Laboratories
> >	MS 0822 - Org 9227 - Building 880/A1-J
> >      (505) 844-2238   FAX (505) 845-0833
> > 
> >
> >_______________________________________________
> >vtk-developers mailing list
> >vtk-developers at vtk.org
> >http://www.vtk.org/mailman/listinfo/vtk-developers
> >
> >  
> >
> 
> -- 
> John Biddiscombe,                            email:biddisco @ cscs.ch
> http://www.cscs.ch/about/BJohn.php
> CSCS, Swiss National Supercomputing Centre  | Tel:  +41 (91) 610.82.07
> Via Cantonale, 6928 Manno, Switzerland      | Fax:  +41 (91) 610.82.82
> 
> 
>