JavaFX8: Multittouch support under Linux

[Daniel Blaukopf]

Hi Stefan,

You have it exactly right. The touch support on the Raspberry Pi and similar devices gets events from the Linux device drivers, not from X11 or GTK. We don’t provide a binary of this configuration for x86, but if you are able to build OpenJFX then you could easily create a binary yourself (“gradle -PCOMPILE_TARGETS=x86egl sdk”). This is a hybrid binary that uses EGL/X11 for full-screen output but gets input directly from device nodes in /dev/input.

Thanks,
Daniel

On Apr 2, 2014, at 11:10 AM, Stefan Schwandter <s.schwandter at me.com> wrote:

> Hi Anthony,
> 
> 
> thanks for your quick reply.
> 
> I wonder though: it seems there’s at least preliminary touch support for OpenJFX on the Raspberry Pi - is this because it does not use X11 and/or GTK there? Is it possible to do the same on an X86-based Linux device?
> 
> 
> Cheers,
> Stefan
> 
> Am 01.04.2014 um 14:02 schrieb Anthony Petrov <anthony.petrov at oracle.com>:
> 
>> Hi Stefan,
>> 
>> No, currently it's not. Here's a JIRA that you may want to watch:
>> 
>> https://javafx-jira.kenai.com/browse/RT-25079
>> 
>> --
>> best regards,
>> Anthony
>> 
>> On 4/1/2014 3:52 PM, Stefan Schwandter wrote:
>>> Hello all!
>>> 
>>> 
>>> Is multitouch-input supposed to be supported on Java 8 SE running on Linux? I use a capacitive touch screen, with a DMC controller, connected to a Ubuntu 13.10 PC via USB, and none of the sample code that I've tried seems to recognize any touch events. Under Windows 7, touch events are recognized, I can swipe, zoom, etc.
>>> 
>>> So I wonder, if multitouch input is simply not supported under Linux with JavaFX 8, or I have another problem.
>>> 
>>> 
>>> Best regards,
>>> 
>>> Stefan
>>> 
>