Bug 567613 - Toolbar buttons are rendered with banding on Mac
Summary: Toolbar buttons are rendered with banding on Mac
Status: CLOSED DUPLICATE of bug 564885
Alias: None
Product: Platform
Classification: Eclipse Project
Component: SWT (show other bugs)
Version: 4.17   Edit
Hardware: Macintosh Mac OS X
: P3 normal (vote)
Target Milestone: ---   Edit
Assignee: Platform-SWT-Inbox CLA
QA Contact:
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Reported: 2020-10-05 11:11 EDT by Phil Beauvoir CLA
Modified: 2020-10-21 09:11 EDT (History)
3 users (show)

See Also:

Attachments
Sceenshot to show the banding (21.26 KB, image/png)
2020-10-05 11:13 EDT, Phil Beauvoir CLA 		no flags Details
Screenshot using dark theme (22.35 KB, image/png)
2020-10-05 11:23 EDT, Phil Beauvoir CLA 		no flags Details
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Description Phil Beauvoir CLA 2020-10-05 11:11:43 EDT 
MacOS 10.14.6 and 10.15.7

When Eclipse SDK itself or an RCP app is launched from Eclipse toolbar buttons in ViewParts are rendered with strange banding.

Steps to reproduce:

1. Create a Launch Configuration to launch product "org.eclipse.sdk.ide".
2. Run the Launch Configuration to spawn a new instance of Eclipse.
3. Open the JavaDoc View (or any View that has a toolbar) in this new instance and resize it wide enough so the toolbar is at the same level as the View's tab.
4. Resize the View vertically to see the white banding moving on the toolbar.

Note:

- This only happens when a new instance of Eclipse is spawned from the launch configuration, or an RCP app is launched from Eclipse.
- I have not noticed this until today. It might be related to a recent MacOS update from Apple
Comment 1 Phil Beauvoir CLA 2020-10-05 11:13:10 EDT 
Created attachment 284363 [details]
Sceenshot to show the banding

This screenshot shows the issue.
Comment 2 Phil Beauvoir CLA 2020-10-05 11:23:07 EDT 
Created attachment 284364 [details]
Screenshot using dark theme

With the dark theme we can see a white horizontal band on the toolbar.

To see it in action you really need to resize the View vertically.
Comment 3 Phil Beauvoir CLA 2020-10-08 11:19:51 EDT 
Tested on MacOS Big Sur Beta 20A5384c - the banding on the toolbar buttons is present in Eclipse when running it normally.

New steps to reproduce:

1. Launch Eclipse 4.17
2. Look at the toolbar buttons in ViewParts
3. Resize the main Eclipse window vertically to see the banding effect
Comment 4 Justin Dolezy CLA 2020-10-09 06:17:40 EDT 
Looks like a duplicate of Bug 567127 ?
Comment 5 Phil Beauvoir CLA 2020-10-09 06:26:20 EDT 
(In reply to Justin Dolezy from comment #4)
> Looks like a duplicate of Bug 567127 ?

Yes, but also seen in Mojave and Catalina when following the steps to reproduce in Comment #1.
Comment 6 Lakshmi P Shanmugam CLA 2020-10-21 09:11:39 EDT 

*** This bug has been marked as a duplicate of bug 564885 ***