I'd love to read a writeup of the state of Rust GUI and the ecosystem if you could point me at one.
I started writing a program that needed to have a table with 1 million rows. This means it needs to be virtualised. Pretty common in GUI libraries. The only Rust GUI library I found that could do this easily was gpui-component (https://github.com/longbridge/gpui-component). It also renders text crisply (rules out egui), looks nice with the default style (rules out GTK, FLTK, etc.), isn't web-based (rules out Dioxus), was pretty easy to use and the developers were very responsive.
Definitely the best option today (I would say it's probably the first option that I haven't hated in some way). The only other reasonable choices I would say are:
* egui - doesn't render very nicely and some of the APIs are amateurish, but it's quick and it works. Good option for simple tools.
* Iced - looks nice and seemed to work fairly well. No virtualised lists though.
* Slint (though in some ways it is weird and it requires quite a lot of boilerplate setup).
All the others will cause you pain in some way. I think the "ones to watch" are:
* Makepad - from the demos I've seen this looks really cool, especially for arty GUI projects like synthesizers and car UIs. However it has basically no documentation so don't bother yet.
* Xilem - this is an attempt to make an 100% perfect Rust GUI library, which is cool and all but I imagine it also will never be finished.
Except the above virtualised lists, another case I hit was layered images (sprites for example). Not very hard to write my own, sure, but it’d be nice to have that out of the box as in eg. egui
Beyond egui/Iced/Slint, I'd say the "ones to watch" are:
* Freya
* Floem
* Vizia
I think all three of those offer virtualized lists.
Dioxus Native, the non-webview version of Dioxus is also nearing readiness.
Unfortunately, it seems GPUI is no longer in development.
Iced looks great, but the developer is very open about it being a personal project (https://book.iced.rs/philosophy.html). That is appreciated, but for companies or even individuals wanting to adopt it, it's a big hurdle to get across.
Have you seen their intro that also has an image viewer building tutorial?
https://publish.obsidian.md/makepad-docs/Makepad+Introductio...