Bug 566378

Summary: [no_css] Missing tab border between tab and toolbar
Product: [Eclipse Project] Platform Reporter: Andrey Loskutov <loskutov>
Component: UIAssignee: Platform-UI-Inbox <Platform-UI-Inbox>
Status: NEW --- QA Contact:
Severity: normal    
Priority: P3 CC: rolf.theunissen
Version: 4.15   
Target Milestone: ---   
Hardware: PC   
OS: Linux   
Whiteboard:
Attachments:
Description Flags
Missing tab border none

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?