[Development] Why does QQuickImageProvider not support SVG images?

[Giuseppe D'Angelo]

Il 12/03/25 09:46, Schimkowitsch Robert ha scritto:
> I immediately jumped on the brand-new VectorImage, and quickly found, to 
> my disappointment, that I cannot use it, because I am missing an 
> important piece.
> 
> How am I supposed to pass a memory-generated SVG via URL?
> 
> Normally, I would do that via QQuickImageProvider, but it seems someone 
> forgot SVGs there.

Or via a custom QNAM.

However VectorImage doesn't support SVGs not coming from the filesystem 
or the resource system.

> https://github.com/qt/qtdeclarative/blob/dev/src/quickvectorimage/qquickvectorimage.cpp#L57

IMO there's no reason for this limitation to be there, and the fact that 
the `source` property is of type `url` makes this behavior difference 
(say, with Image) extremely unpleasant.

(VectorImage is also missing signals and notifications for loading 
errors, FWIW.)



> I’m happy for suggestions….that do not involve writing stuff to disc 
> (for long-lived devices, that can become an issue with SSD lifetime).
> 

Is tmpfs an option?


My 2 c,

-- 
Giuseppe D'Angelo | giuseppe.dangelo at kdab.com | Senior Software Engineer
KDAB (France) S.A.S., a KDAB Group company
Tel. France +33 (0)4 90 84 08 53, http://www.kdab.com
KDAB - Trusted Software Excellence

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