ktatunov added a comment.
Thanks for the pointer. Upon further investigation it looks like setting
sourceSize.width: width
sourceSize.height: height
instead of mipmap works well for more or less square images. However, for
images that are significantly wider than they are taller (or vice versa)
quality is degrading.
F5819557: kickoff-sourcesize-after-horizontal.png
<https://phabricator.kde.org/F5819557>
F5819559: kickoff-sourcesize-after-vertical.png
<https://phabricator.kde.org/F5819559>
AFAICT, `Image` in qml loads the image in a mode equivalent to
`Image.PreserveAspectCrop` (at least in this case) after which `Image`'s
scaling kicks in. So images that are really wide or really tall end up being
loaded at a resolution that is way off and then scaled.
I guess it's not that big of a price to pay so I'll replace `mipmap` with
`sourceSize`.
REPOSITORY
R119 Plasma Desktop
REVISION DETAIL
https://phabricator.kde.org/D12469
To: ktatunov, #plasma
Cc: davidedmundson, plasma-devel, ragreen, Pitel, ZrenBot, lesliezhai,
ali-mohamed, jensreuterberg, abetts, sebas, apol, mart
