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Re: [linuxtools-dev] SWT issues when using GTK 3
Thanks for all your suggestions. I created a plug-in project from the templates with an empty workspace, and it was displayed correctly. I tried to import that same project into the main linuxtools workspace, and then the bug occurs. After playing a bit with the target definition, I found the setting that makes the TMF RCP ugly: 

diff --git a/lttng/org.eclipse.linuxtools.lttng.target/lttng-eStaging.target b/lttng/org.eclipse.linuxtools.lttng.target/lttng-eStaging.target
index 0c478fd..3662dda 100644
--- a/lttng/org.eclipse.linuxtools.lttng.target/lttng-eStaging.target
+++ b/lttng/org.eclipse.linuxtools.lttng.target/lttng-eStaging.target
@@ -10,11 +10,11 @@
 <location includeAllPlatforms="false" includeConfigurePhase="false" includeMode="planner" includeSource="true" type="InstallableUnit">
 <unit id="org.eclipse.cdt.feature.group" version="0.0.0"/>
 <unit id="org.eclipse.sdk.ide" version="0.0.0"/>
 </location>

The staging repo seems incompatible, while kepler is OK (as suggested by Marc-Andre). 

I was not successfull at reproducing the bug only with raw SWT CTabFolder/Item (sorry Alexander). It seems that the bug occurs from within the workbench only.

I tried to use gtkparasite to check the widget tree. There is only one difference for the pane widget attribute: can-focus=FALSE in the case of the correctly displayed widget, while can-focus is TRUE when the widget is not displayed correctly. But this is probably not the cause of the error... 

Here are some screenshots: 

http://secretaire.dorsal.polymtl.ca/~fgiraldeau/eclipse/bug/20140411-swt/

Thanks for all your comments.

Francis


2014-04-11 16:20 GMT-04:00 Marc-André Laperle <marc-andre.laperle@xxxxxxxxxxxx>:
Hi Francis,

In more recents versions of Eclipse Luna, that GTK version is "black listed" so it falls back to GTK2. If you build the RCP yourself, you should probably build it for Kepler to be extra safe (-Pplatform-kepler). That said, there are other issues with Luna + GTK3 on 12.04 and 13.10 that are still being worked on in SWT.

Marc-André


On 14-04-11 04:17 PM, Francis Giraldeau wrote:
I just upgraded to Ubuntu 14.04, and when using the TMF RCP product, widgets are crippled. I had to set the environment variable SWT_GTK3=0 to make it work properly. This Ubuntu release is due for next week, so I guess that quite a few people will get the issue. Is there a definitive solution to this problem?

Thanks!

Francis


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