How to load fonts dynamically

[share121]

The font package is too big, so I don't want to embed it in the software, but dynamically download, unzip it at runtime. I want to display the default font first, and replace it with a new font when the decompression is complete.

[mitsubishirgb]

I haven’t worked much with font styles, but it seems feasible to expose the font-family property to the business logic. The decompression could also be handled at startup, updating the font-family property via slint::invoke_from_event_loop(F f).

[share121]

However, after decompression, the font in the temporary folder is not imported into slint, and modifying default-font-family cannot take effect. In a normal scenario, I can import a custom font by importing a font in a slint file, but I don't know what the corresponding API is in Rust.

[nczyw]

The font package is too big, so I don't want to embed it in the software, but dynamically download, unzip it at runtime. I want to display the default font first, and replace it with a new font when the decompression is complete.

Have you found a solution? I’m also working on internationalization, but the font package is too large, so I don’t want to embed it into the executable. I hope to load it dynamically, but if the font package is not loaded, some computers display question marks instead.

[tronical]

For Rust we provide an API that exposes access to the underlying fontique font collection. That's available when compiling with std. The API may change, but it's exposed for the purpose I think you describe :-) https://docs.slint.dev/latest/docs/rust/slint/fontique_07/fn.shared_collection