Bug 566378 - [no_css] Missing tab border between tab and toolbar
Summary: [no_css] Missing tab border between tab and toolbar
Status: NEW
Alias: None
Product: Platform
Classification: Eclipse Project
Component: UI (show other bugs)
Version: 4.15   Edit
Hardware: PC Linux
: P3 normal (vote)
Target Milestone: ---   Edit
Assignee: Platform-UI-Inbox CLA
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Reported: 2020-08-25 09:17 EDT by Andrey Loskutov CLA
Modified: 2020-08-25 16:07 EDT (History)
1 user (show)

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Attachments
Missing tab border (18.69 KB, image/png)
2020-08-25 09:17 EDT, Andrey Loskutov CLA 		no flags Details
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Description Andrey Loskutov CLA 2020-08-25 09:17:01 EDT 
Created attachment 283961 [details]
Missing tab border

Happens with 4.15 / 4.17 RC1 too, I've tested on RHEL 7.4 / GTK 3.22, haven't checked with Windows.

Precondition: CSS themes are disabled.

Open default Java perspective, and slowly resize the left tab area so that the view toolbar "touches" the tab border. A moment before it will be wrapped to the new line, toolbar and view tab loose the separator line between, see attached screenshot. Looks like the toolbar "paints over" the tab area, one pixel or so.
Comment 1 Rolf Theunissen CLA 2020-08-25 16:00:41 EDT 
I have seen this on Windows too.
Comment 2 Andrey Loskutov CLA 2020-08-25 16:07:52 EDT 
Just noticed, the bottom tab border is also partially not drawn, so may be this is the CTabFolder rendering one pixel off in bottom/right sides?