RE: [gl4java-usergroup] Destroying and Creating canvases in a sin gle window ? ? ?

[Combe, C. <C....@na...>]

Hi 
- in answer to your first Q, yes, i have had trouble with this and I don't
think I'm was doing anything obviously stupid. I was using the
event-listener way of doing things rather than the subclassing way but after
adding and removing GLEventListener's to/from a canvas a couple of times it
would all slow down horribly. It seemed to only happen on certain machines.
I was confused. 

col

-----Original Message-----
From: Tobias L. George
To: gl4...@li...
Sent: 27/03/03 02:38
Subject: [gl4java-usergroup] Destroying and Creating canvases in a single
window ? ? ?

Hello all,

I am wondering whether or not anyone else is having trouble
destroying and creating GLCanvases in a single window.  I
have tried with both the binary release from Jausoft, and the
CVS release that was on sourceforge as of March 22, 2003.

I think that something is not being properly disposed of when
a GLCanvas is destroyed.  I am able to create and destroy
a few GLCanvases but after a while the GLCanvases that are
created slow to a crawl when drawing.

Try as I might, I have only been able
to find a single bug in GL4Java.  It is in the GLCanvas code,
during the first paint, the canvas adds itself to the top level
window as a listener.  The problem is, that it never removed
itself as a listener and so it would never get finalized.  This
is not even a bug if you look at it from the point of view of
always needing to destroy the top-level window in order to
destroy a GLCanvas, although in practice you end up having
to exit the program.  Be that as it may, I am at a loss for the
moment as to why this slow down is happening when I create
and destroy more than a few GLCanvases.  I am looking
through the GL4Java code again now, and I will find out why
sooner or later by the grace of VisualC, but if someone has a
clue, could you help a brotha out ? ? ?


                      Peace, Love, and Hair Grease,

                                        -TOBY



-------------------------------------------------------
This SF.net email is sponsored by:
The Definitive IT and Networking Event. Be There!
NetWorld+Interop Las Vegas 2003 -- Register today!
http://ads.sourceforge.net/cgi-bin/redirect.pl?keyn0001en
_______________________________________________
gl4java-usergroup mailing list
gl4...@li...
https://lists.sourceforge.net/lists/listinfo/gl4java-usergroup