Bug 464866

Summary:	WebP don't show thumbnails in Recent Documents
Product:	[Applications] krita	Reporter:	Freya Lupen <penguinflyer2222>
Component:	File formats	Assignee:	amyspark <amy>
Status:	RESOLVED FIXED
Severity:	normal	CC:	amy, griffinvalley
Priority:	NOR	Keywords:	regression
Version First Reported In:	git master (please specify the git hash!)
Target Milestone:	---
Platform:	Other
OS:	Other
Latest Commit:	https://invent.kde.org/graphics/krita/-/commit/0c4afeb0fb5d6cf91cb4210b711c32b06f25d7ab	Version Fixed/Implemented In:
Sentry Crash Report:

Description Freya Lupen 2023-01-26 19:05:54 UTC

SUMMARY
WebP don't show thumbnails in Recent Documents, because KisFileIconCreator uses QImage to create the thumbnails, and QImageReader::supportedImageFormats() isn't reporting .webp as a supported format.
This issue occurs after the update to Qt 5.15, but works on earlier versions of Krita (5.2.x-19d3f923b).

STEPS TO REPRODUCE
1. Open a WebP image.
2. Close the image and check the Recent Documents list.

OBSERVED RESULT
A WebP thumbnail.

EXPECTED RESULT
Missing WebP thumbnail.

SOFTWARE/OS VERSIONS
Krita 5.2.x git hash ee93c0498f.
Qt Version: 5.15.7

Comment 1 wolthera 2023-01-26 19:08:41 UTC

I can confirm with the Krita Version: 5.2.0-prealpha (git 5c98a72) Appimage with Qt 5.15.7

Comment 2 amyspark 2023-02-06 16:26:56 UTC

Found it. The upgrade to Qt 5.15 didn't carry over qtimageformats.