Re: [gl4java-usergroup] Re: osx & swing problems

[Mark P. <mp...@ps...>]

Hi

I am having the exact same problem as Daniel. When starting a GLJPanel 
and GLAnimPanel app it gives me the class cast exception in mac os x. Is 
there a fix? What should I do in the meantime. Gerard, you mentioned 
that this problem occurs if hwaccel is on. Should I turn it off for the 
time being, and if so, how?

Thanks for any help.
Mark

On Tuesday, March 19, 2002, at 01:16  PM, gerard ziemski wrote:

> Daniel
>
> The hwaccel mechanism in Apple's Java implementation uses OpenGL. 
> Currently, if you turn hwaccel on, you will run into problems if you 
> try to run gl4java at the same time. It should be easy to make gl4java 
> work with hwaccel, after all, they use the same hardware accelerated 
> surface, so the entire step of gl4java asking and pinning down its own 
> hwaccel surface goes away. But it takes time, however little, to do it 
> and right now I'm busy working on Java and preparing for WWDC. After 
> all what good is gl4java without kick ass Java support underneath it 
> right? ;-)
>
> I will look at gl4java shortly and update it.
>
> cheers
>
>
>> Date: Sat, 16 Mar 2002 23:34:40 +0100
>> From: Daniel Bisig <db...@if...>
>> To: gl4...@li...
>> Subject: [gl4java-usergroup] osx & swing problems
>>
>> Hi all,
>>
>> I trying to get the swing demo files to run under Mac OS X 10.1.3. The
>> gl4java Version is 2.7.2.0. which I downloaded from Gerard Ziemski 
>> page.
>> At the moment, these demos and all the other examples that I found 
>> which
>> make use of either GLAnimPanel or GLJPanel produce the follwing
>> exception:
>>
>> An exception is thrown, while creating a GL context
>>
>> java.lang.ClassCastException:
>> com.apple.mrj.internal.awt.basepeers.VContainerPeer
>> java.lang.ClassCastException:
>> com.apple.mrj.internal.awt.basepeers.VContainerPeer
>> ...etc...
>>
>> I have no clue whether this is a problem of apple's java implementation
>> or of gl4java. I would really like to include some opengl functionality
>> in my visualization program which makes heavy use of swing. For this
>> reason I appreciate any tips and tricks how to get gl4java and swing to
>> work under Mac OS X.
>>
>> Thanks in advance!
>>
>>         Daniel
>
>
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