Bug 155289

Summary: MCGR multi-step transparency gradient does not work in slideshow mode but in edit mode
Product: LibreOffice Reporter: Regina Henschel <rb.henschel>
Component: ImpressAssignee: Armin Le Grand <Armin.Le.Grand>
Status: RESOLVED FIXED    
Severity: minor CC: Armin.Le.Grand, ilmari.lauhakangas
Priority: medium    
Version: unspecified   
Hardware: All   
OS: All   
Whiteboard:
Crash report or crash signature: Regression By:
Bug Depends on:    
Bug Blocks: 36766    
Attachments: Shape with multi-step transparency gradient
Gradient with transparency

Description Regina Henschel 2023-05-13 22:11:54 UTC
Created attachment 187259 [details]
Shape with multi-step transparency gradient

Open attached document. It has a shape with a multi-color gradient and with a multi-step transparency gradient.
On first slide start and end is full transparent, in-between steps are opaque.
On second slide the start step is full transparent and the end step has 50% transparency. In-between steps are opaque
On third slide is a solid transparency of 50%.

Start the slideshow. Notice, that on the first slide the whole shape is full transparent and on the second slide the steps in-between are missing.
Comment 1 Regina Henschel 2023-05-13 22:23:58 UTC
Created attachment 187260 [details]
Gradient with transparency

Import from pptx has the same problem.
Comment 2 Buovjaga 2023-05-17 13:15:51 UTC
Confirmed

Arch Linux 64-bit, X11
Version: 7.6.0.0.alpha1+ (X86_64) / LibreOffice Community
Build ID: 85a47bbb8340e65a19dc1ceaac768902a771ee77
CPU threads: 8; OS: Linux 6.3; UI render: default; VCL: kf5 (cairo+xcb)
Locale: fi-FI (fi_FI.UTF-8); UI: en-US
Calc: threaded
Built on 17 May 2023
Comment 3 Armin Le Grand 2023-05-30 19:14:16 UTC
Seems also fixed with https://gerrit.libreoffice.org/c/core/+/152392, so reason might have been same as tdf#155437, so maybe double.
Comment 4 Regina Henschel 2023-05-31 11:38:18 UTC
I have a build including https://gerrit.libreoffice.org/c/core/+/152392 and can confirm, that this bug is fixed. I have checked it with and without Skia. So setting duplicate is fine for me.