Oakland is a GUI library written in pure Rust and XCB.
It does its own drawing and event management.
It's not really usable.
Here's a program which just shows a window:
let g = Rc::new(oakland::Graphical::new());
let main = g.put(oakland::MainWindow::new("My Main Window"));
g.exec();
When you put a widget onto another, it returns the widget
in an Rc.
You can post events to the GUI thread by by calling
Graphical::channel(handler), which simply creates a channel
which activates the function handler on the event loop.
Only push buttons, labels, and tabbars are supported right now, and they don't look great.
I wrote it for writing an appliance on a Raspberry Pi. Therefor it is known to cross-compile and run on that target.