Message-ID: <BLU149-W44527CFB302B0019C3C63393600@phx.gbl>
From: =?iso-8859-1?B?QW5kcukgQmxlYXU=?= <andre_bleau AT hotmail DOT com>
To: <cygwin AT cygwin DOT com>
Subject: Re: OpenGL / GLUT / FreeGlut and the mouse wheel in PyMol.
Date: Wed, 22 Sep 2010 09:28:28 -0400
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"Jan Gebauer" <mail at jan-gebauer dot de> wrote:
>=20
> Hi,
=20
Hi Jan,
=20
>=20
> I'm new to this mailing list and hope my question is not a total obvious
> one, but at the end of the day I'm more a scientist than a programmer. So
> I hope I got the facts right.
>=20
> I'm trying to build PyMol, an open-core molecular visualisation program
> with cygwin (www.pymol.org).
> This software uses OpenGL for displaying three-dimensional structures of
> proteins on the screen and allows manipulating these structure in various
> ways in 3D. It also allows true three-dimensional display with the
> (Nvidia) shutter glasses.
>=20
> It took my a while to get all the dependencies right, but I was finally
> able to build it successfully and it works in nearly all aspects.
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> However, the program does not recognise any input in the "graphic/display
> window" from the mouse wheel, although the TKinter/Tcl based menu window
> does accept scroll events.
> Together with a colleague, we figured out that the win32 port of GLUT
> might be the problem, as it seems not to handle mouse wheel events
> (source:http://www.realmtech.net/opengl/glut.php)
=20
The win32 port of GLUT predates the mouse wheel and has stalled. No hope of=
 an update upstream.

> My colleague was able to build PyMol with the X11 headers and Libs and
> then the mouse wheel worked, but the speed was (as expected) not
> acceptable.
> What are you thinking, is the win32 version of GLUT really the problem?
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> I did found FreeGlut and as it should be a "modern clone" of GLUT=C2, I
> tried to compile it for Cygwin. I got an cygglut-0.dll and some header
> files, but they never compiled well with PyMol (which uses a rather
> complicated python script).
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> My colleague found this message from Andr=C3 Bleau
> http://www.cygwin.com/ml/cygwin/2009-04/msg00264.html, where Mr. Bleau
> stated he hopes to publish GLUT32 replacement based on FreeGlut around
> 2010.
=20
I tried porting the Win32 version of FreeGLUT to Cygwin, but ran into probl=
ems,
mainly with the menus. Replacing GLUT by FreeGlut in my package would not b=
e a
wise thing to do at this point.
=20
>=20
> I just wonder if this new package will be available any-time soon or if
> anyone else has a good idea how to proceed with this problem?
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I am working, very slowly, on improving FreeGLUT. Don't expect anything fro=
m me before 2011.
=20
The X11 version of FreeGlut might benefit from hardware accelerated OpenGL =
at some point,
but that is something that I will let the X11 maintainers talk about. You c=
an find some=20
previous discussion at http://cygwin.com/ml/cygwin-xfree .
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For the immediate time, your only option seems to stick with Win32 GLUT and=
 do without
mousewheel support.
=20
>=20
> With kind regards,
> Jan Gebauer
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> PS: Thanks to all the cygwin contributors, it's the first time I used it
> and it works rather great!
> --
> Dr. Jan Gebauer
> Phone: +44 20 7594 7915 | Fax: +44  20 7589 0191
>=20
> Research group: Dr. E. Hohenester
> Division of Cell & Molecular Biology
> Imperial College London
> Biophysics Section, Blackett Laboratory
> London SW7 2AZ
>=20
=20
Regards,
=20
Andr=E9 Bleau, Cygwin's OpenGL package maintainer.
=20
Please send any comment or question about the OpenGL package to cygwin at c=
ygwin dot com, not to me.

=20=20=09=09=20=09=20=20=20=09=09=20=20

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