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Bug 497829

Summary: [GTK3] Ugly white line in view toolbar
Product: [Eclipse Project] Platform Reporter: Lars Vogel <Lars.Vogel>
Component: SWTAssignee: Platform-SWT-Inbox <platform-swt-inbox>
Status: CLOSED DUPLICATE QA Contact:
Severity: normal    
Priority: P3 CC: akurtakov, ericwill, Lars.Vogel
Version: 4.6   
Target Milestone: ---   
Hardware: PC   
OS: Linux   
Whiteboard:
Attachments:
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Description Lars Vogel CLA 2016-07-13 07:42:50 EDT
Created attachment 263082 [details]
Screenshot

See screenshot
Comment 1 Alexander Kurtakov CLA 2016-07-13 07:54:13 EDT
I believe this is not an issue in SWT but in Platform.UI org.eclipse.e4.ui.workbench.renderers.swt.CTabRendering .
In e4_basestyle.css if you replace swt-tab-renderer: url('bundleclass://org.eclipse.e4.ui.workbench.renderers.swt/org.eclipse.e4.ui.workbench.renderers.swt.CTabRendering');
with
swt-tab-renderer: url('bundleclass://org.eclipse.swt/org.eclipse.swt.custom.CTabFolderRenderer');

you will no longer see that although it might be hidden by toolbar having color in different color in the SWT renderer. 
More investigation is needed for this one.
Comment 2 Lars Vogel CLA 2016-07-13 08:01:07 EDT
Thanks Alex for tha analysis. Shall we move the bug to Platform UI?
Comment 3 Alexander Kurtakov CLA 2016-07-13 08:21:42 EDT
It would help to have a look from someone a bit more familiar with Platform UI renderer. But for now I can't say for sure whether the bug is in SWT ans is just made visible by different way platform renderer does things or a but in the platform renderer itself.
Comment 4 Eric Williams CLA 2016-07-13 09:47:15 EDT
I ran into this bug awhile ago, and after discussions with Sopot we concluded that it was due to a change in the Platform UI CSS. I filed a bug in Platform UI for this: bug 483493.

*** This bug has been marked as a duplicate of bug 483493 ***