Bug 157529 - FILEOPEN PPTX: Text shows that is invisible in PowerPoint
Summary: FILEOPEN PPTX: Text shows that is invisible in PowerPoint
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Impress (show other bugs)
Version:
(earliest affected)
6.4 all versions
Hardware: All All
: medium normal
Assignee: Not Assigned
URL:
Whiteboard:
Keywords:
Depends on:
Blocks: Impress-Gradient OOXML-WordArt PPTX-Textbox
  Show dependency treegraph
 
Reported: 2023-09-30 11:18 UTC by Gerald Pfeifer
Modified: 2023-12-13 05:43 UTC (History)
2 users (show)

See Also:
Crash report or crash signature:


Attachments
Sample slide (PPTX) (38.70 KB, application/vnd.openxmlformats-officedocument.presentationml.presentation)
2023-09-30 11:18 UTC, Gerald Pfeifer
Details
Screenshot with issue highlighted in red (31.25 KB, image/png)
2023-09-30 11:25 UTC, Gerald Pfeifer
Details
The example file in PP 2016 and Impress (134.57 KB, image/png)
2023-10-02 18:11 UTC, Gabor Kelemen (allotropia)
Details

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Description Gerald Pfeifer 2023-09-30 11:18:44 UTC
Created attachment 189904 [details]
Sample slide (PPTX)

Both in edit mode and in presentation mode Impress shows two text boxes
"Network" in green, which PowerPoint shows in neither mode.


Version: 24.2.0.0.alpha0+ (X86_64) / LibreOffice Community
Build ID: f8e591ab9182e0a61c4ae5b8f77b166fcaeaa877
CPU threads: 8; OS: Linux 6.5; UI render: default; VCL: gtk3
Locale: en-US (en_US.UTF-8); UI: en-US

...and all the way back to (at least) LibreOffice 6.4. This does not 
appear to be a regression.


This looks strikingly similar to bug #149588 which was about transparency
at SolidFill. It is not addressed by the fix there, though.
Comment 1 Gerald Pfeifer 2023-09-30 11:25:49 UTC
Created attachment 189905 [details]
Screenshot with issue highlighted in red
Comment 2 Gabor Kelemen (allotropia) 2023-10-02 18:11:59 UTC
Created attachment 189960 [details]
The example file in PP 2016 and Impress

Confirming in 

Version: 24.2.0.0.alpha0+ (X86_64) / LibreOffice Community
Build ID: 2902ab24ecc5ffbf4907ea83b2028508b9de6364
CPU threads: 15; OS: Windows 10.0 Build 19045; UI render: Skia/Raster; VCL: win
Locale: en-US (hu_HU); UI: en-US
Calc: threaded

We have fontwork here, and the network word has seemingly a different font color + transparency given on different letters: 2c8685 and white color plus 100% transparency in PP, becomes 2c8685 and no transparency in Impress.