[Libreoffice-bugs] [Bug 127963] Toolbar flickers while the window is resized

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=127963

V Stuart Foote <vstuart.foote at utsa.edu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Blocks|                            |91488, 112889
             Status|NEEDINFO                    |NEW
                 CC|                            |todventtu at suomi24.fi,
                   |                            |vstuart.foote at utsa.edu

--- Comment #2 from V Stuart Foote <vstuart.foote at utsa.edu> ---
Hmm, duplicate bug 69932 on Linux was closed => WF, but it was confirmed there
(cmnt 21) for Windows (6.2.7). Suspect that original issues there, were
conflated with the RenderContext refactoring--and maybe should have been moved
to a new issue. Anyhow still can confirm on 6.3, and with recent master.

@Xisco -- another candidate for your RequestDoubleBuffering(true) patches?

STR:

1. Open LibreOffice disable OpenGL rendering, restart
2. open Writer
3. View -> User Interface -> Standard Toolbar (restart Writer if changes)
4. grab corner of the LibreOffice application frame on system desktop
5. drag to resize, release
6. watch the Toolbar elements redraw (multiple times in sequence) on release --
not double buffered

7. enable OpenGL, restart
8. same steps 4 - 6
9. clean single draw -- double buffered

=-testing-=
Windows 10 Home 64-bit en-US (1903) Intel HD Graphics 620

Version: 6.3.2.2 (x64)
Build ID: 98b30e735bda24bc04ab42594c85f7fd8be07b9c
CPU threads: 4; OS: Windows 10.0; UI render: default; VCL: win; 
Locale: en-US (en_US); UI-Language: en-US
Calc: threaded

Version: 6.4.0.0.alpha0+ (x64)
Build ID: 3a7d479c4c852499e8e4e2bc4273f02aec5051be
CPU threads: 4; OS: Windows 10.0; UI render: default; VCL: win; 
TinderBox: Win-x86_64 at 42, Branch:master, Time: 2019-09-25_22:48:46
Locale: en-US (en_US); UI-Language: en-US
Calc: threaded


Referenced Bugs:

https://bugs.documentfoundation.org/show_bug.cgi?id=91488
[Bug 91488] [META] RenderContext related issues
https://bugs.documentfoundation.org/show_bug.cgi?id=112889
[Bug 112889] [META] Screen flickering when hovering on items or selecting text
with default rendering
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