<Swing Dev> <AWT Dev> Question about GtkLnF implementation

[Anthony Petrov]

Hi Clemens, Damjan,

[ also copying the swing-dev@ list ]

AFAIK, there currently nobody working on such an enhancement to the 
Swing GTK L&F implementation. This L&F is by far not the fastest one out 
there, so any improvement is very welcome.

If either of you could help with developing a fix, that would be very 
much appreciated.

--
best regards,
Anthony

On 1/30/2010 7:47 PM Clemens Eisserer wrote:
> Hi Damjan,
> 
>> The number of roundtrips isn't such a problem, the number is pixels
>> is. 2 NxM pixmaps have the same number of pixels in total as an Nx2M
>> or 2NxM pixmap, so little time is saved.
> 
> Sure the amount of data stays the same - however for (most modern)
> video drivers which place their pixmaps in vram it does make a
> difference.The whole situation is quite ugly :-/
> 
>> Anyway, when last I heard the solution to this was to subclass GDK
>> drawing functions so they draw with the alpha channel in the first
>> place, instead of the double drawing without alpha and then mixing
>> pixmaps to recover it. Anyone working on this?
> 
> Hmm, I guess the best thing would be to get GTK's broken theme API
> right, to draw on a cairo-context instead of a GdkDrawalbe.
> 
> I submited patches for rfc some time ago, but nobody really looked at
> it. To me it seems GTK is quite dead.
> When I brought that topic up again, it was mentioned that the work is
> obsolete because GTK+3 will have an all new-any-shiny theming API
> which will be perfect in any aspect.
> 
> However they are talking about GTK+3 for about 2,5 years now, with no outcome.
> 
> Hmm, I am starting to get personal again ;)
> 
> - Clemens