Bug 153015 - FILEOPEN PPTX: narrow slices of background appear between rectangles (in presentation mode only)
Summary: FILEOPEN PPTX: narrow slices of background appear between rectangles (in pres...
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Impress (show other bugs)
Version:
(earliest affected)
3.5.0 release
Hardware: All All
: medium minor
Assignee: Not Assigned
URL:
Whiteboard:
Keywords: filter:pptx
Depends on:
Blocks: Slide-Background
  Show dependency treegraph
 
Reported: 2023-01-13 20:47 UTC by Gerald Pfeifer
Modified: 2023-12-13 05:55 UTC (History)
3 users (show)

See Also:
Crash report or crash signature:


Attachments
Sample slide (PPTX) (2.35 MB, application/vnd.openxmlformats-officedocument.presentationml.presentation)
2023-01-13 20:47 UTC, Gerald Pfeifer
Details
Screenshot in presentation mode - respective areas marked (in green) (223.33 KB, image/png)
2023-01-13 20:51 UTC, Gerald Pfeifer
Details
screenshot without lines (102.88 KB, image/jpeg)
2023-01-29 15:25 UTC, Faisal
Details
Screenshot in presentation mode - LibreOffice 7.2 (18.64 KB, image/png)
2023-01-29 21:58 UTC, Gerald Pfeifer
Details
Screenshot in presentation mode - LibreOffice 7.4 (19.25 KB, image/png)
2023-01-29 22:01 UTC, Gerald Pfeifer
Details
Screenshot in presentation mode - LibreOffice 7.5 (19.76 KB, image/png)
2023-01-29 22:07 UTC, Gerald Pfeifer
Details

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Description Gerald Pfeifer 2023-01-13 20:47:46 UTC
Created attachment 184652 [details]
Sample slide (PPTX)

If we view the sample documentation in edit mode, the actual slide
background is not visible.

In presentation mode - in Impress, not so in PowerPoint, there are
three places where it comes through.

Version: 7.6.0.0.alpha0+ (X86_64) / LibreOffice Community
Build ID: 5b3fd1af1247d4096451e5a768c3438fbccec2b2
CPU threads: 8; OS: Linux 6.0; UI render: default; VCL: gtk3
Locale: en-US (en_US.UTF-8); UI: en-US

(and back to 6.4 at least)


Disclaimer: I am not arguing this is a well designed slide. It still
renders differently in Impress than it does in PowerPoint.
Comment 1 Gerald Pfeifer 2023-01-13 20:51:16 UTC
Created attachment 184653 [details]
Screenshot in presentation mode - respective areas marked (in green)
Comment 2 Faisal 2023-01-29 15:25:33 UTC
Created attachment 185001 [details]
screenshot without lines

I cannot reproduce with

Version: 7.4.4.2 (x64) / LibreOffice Community
Build ID: 85569322deea74ec9134968a29af2df5663baa21
CPU threads: 4; OS: Windows 10.0 Build 19045; UI render: Skia/Raster; VCL: win
Locale: en-US (en_US); UI: en-US
Calc: CL

(The gradient of the black rectangles is not showing in presentation mode, but that is irrelevant to this ticket.)
Comment 3 Faisal 2023-01-29 15:28:06 UTC
The background is shown on the right border of the slide because the right-most black rectangle is not touching the right border of the side. That is the result of the rectangle's position and not because of a bug
Comment 4 Gerald Pfeifer 2023-01-29 21:58:28 UTC
Created attachment 185003 [details]
Screenshot in presentation mode - LibreOffice 7.2

At first I thought this might be related to me using an HiDPI display,
alas I see the same artefacts with a 1920 x 1080 resolution as well.

And note how 7.2 does not have the white area in the upper right corner yet.

Version: 7.2.8.0.0+ / LibreOffice Community
Build ID: d293877ff029ae7c161ccfbade992485fd92fe75
CPU threads: 8; OS: Linux 6.1; UI render: default; VCL: gtk3
Locale: en-US (en_US.UTF-8); UI: en-US
TinderBox: Linux-rpm_deb-x86_64@86-TDF, Branch:libreoffice-7-2, Time: 2022-04-26_20:29:27
Comment 5 Gerald Pfeifer 2023-01-29 22:01:33 UTC
Created attachment 185004 [details]
Screenshot in presentation mode - LibreOffice 7.4

Version: 7.4.6.0.0+ / LibreOffice Community
Build ID: 2abb6c0df76514d57169ea0600c7f48ec543789a
CPU threads: 8; OS: Linux 6.1; UI render: default; VCL: gtk3
Locale: en-US (en_US.UTF-8); UI: en-US
Comment 6 Gerald Pfeifer 2023-01-29 22:07:42 UTC
Created attachment 185005 [details]
Screenshot in presentation mode - LibreOffice 7.5

Version: 7.5.1.0.0+ (X86_64) / LibreOffice Community
Build ID: fae7cb51c9f61fd190a9d6f1147d3bc1a4a0c1cf
CPU threads: 8; OS: Linux 6.1; UI render: default; VCL: gtk3
Locale: en-US (en_US.UTF-8); UI: en-US
Comment 7 Gerald Pfeifer 2023-01-29 22:10:53 UTC
(In reply to Faisal from comment #2)
> I cannot reproduce with
> 
> ... OS: Windows 10.0 ...

Note my report and tests were done on Linux, so this may be why we are
getting different results?

Interestingly, if you open the screenshots I provide - from 7.2, 7.4,
7.5, and 7.6 - they all look slightly differently which is visible when
quickly flipping from one to the next.
Comment 8 Buovjaga 2023-03-22 13:40:14 UTC
I do see it on Windows as well.

Tested on Linux with old versions and this is already in 3.5. It is even seen in edit mode in the old versions. Changing zoom can also make it visible.

Version: 7.6.0.0.alpha0+ (X86_64) / LibreOffice Community
Build ID: b5c3a7502f7ff6ccf0f829c1f3a2ba50b8584c41
CPU threads: 2; OS: Windows 10.0 Build 22621; UI render: Skia/Raster; VCL: win
Locale: en-US (en_FI); UI: en-US
Calc: threaded

Arch Linux 64-bit, X11
Version: 7.6.0.0.alpha0+ (X86_64) / LibreOffice Community
Build ID: 74f398bb58510087cc4a11bb2253715771a2c6b2
CPU threads: 8; OS: Linux 6.2; UI render: default; VCL: kf5 (cairo+xcb)
Locale: fi-FI (fi_FI.UTF-8); UI: en-US
Calc: threaded
Built on 22 March 2023