JavaFX8: Multittouch support under Linux

[Stefan Schwandter]

Thanks,


I’ve applied the patch from the bug tracker, and could compile now. I will get back to you when I have had a chance to run a multitouch application with that build.


Cheers,
Stefan



Am 07.04.2014 um 14:28 schrieb Daniel Blaukopf <daniel.blaukopf at oracle.com>:

> Tracked at https://javafx-jira.kenai.com/browse/RT-36462
> It's targeted at 9, but there will be a patch soon.
> 
> Thanks,
> Daniel
> 
> On 4/4/14, 10:40 AM, Stefan Schwandter wrote:
>> Hi,
>> 
>> 
>> thanks! I’ve tried to compile on a current Ubuntu 13.10. A default build (gradle 1.8 without parameters) works fine. With
>> 
>> gradle -PCOMPILE_TARGETS=x86egl sdk
>> 
>> however, I get the following build error:
>> 
>> stefan at stefan-OptiPlex-GX620:~/src/openjfx/rt$ gradle -PCOMPILE_TARGETS=x86egl sdk
>> :buildSrc:generateGrammarSource UP-TO-DATE
>> :buildSrc:compileJava UP-TO-DATE
>> :buildSrc:compileGroovy UP-TO-DATE
>> :buildSrc:processResources UP-TO-DATE
>> :buildSrc:classes UP-TO-DATE
>> :buildSrc:jar UP-TO-DATE
>> :buildSrc:assemble UP-TO-DATE
>> :buildSrc:compileTestJava UP-TO-DATE
>> :buildSrc:compileTestGroovy UP-TO-DATE
>> :buildSrc:processTestResources UP-TO-DATE
>> :buildSrc:testClasses UP-TO-DATE
>> :buildSrc:test UP-TO-DATE
>> :buildSrc:check UP-TO-DATE
>> :buildSrc:build UP-TO-DATE
>> Creating properties on demand (a.k.a. dynamic properties) has been deprecated and is scheduled to be removed in Gradle 2.0. Please read http://gradle.org/docs/current/dsl/org.gradle.api.plugins.ExtraPropertiesExtension.html for information on the replacement for dynamic properties.
>> Deprecated dynamic property: "compilePrefix" on "root project 'rt'", value: "".
>> 
>> FAILURE: Build failed with an exception.
>> 
>> * Where:
>> Script '/home/stefan/src/openjfx/rt/buildSrc/x86egl.gradle' line: 59
>> 
>> * What went wrong:
>> A problem occurred evaluating script.
>>> No signature of method: java.lang.String.exists() is applicable for argument types: () values: []
>>  Possible solutions: wait(), toList(), expand(), execute(), toList(), next()
>> 
>> * Try:
>> Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
>> 
>> BUILD FAILED
>> 
>> Total time: 9.536 secs
>> 
>> 
>> Best,
>> Stefan
>> 
>> 
>> Am 02.04.2014 um 10:19 schrieb Daniel Blaukopf <daniel.blaukopf at oracle.com>:
>> 
>>> 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
>>>>>> 
>