migrations/egui
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Replace Context::begin_frame/end_frame with fn run taking a closure (#872)

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* Replace Context begin_frame/end_frame with `fn run` taking a closure
* Create `egui::__run_test_ui` to replace `Ui::__test`
* Add helper `egui::__run_test_ctx` for doctests
This commit is contained in:
Emil Ernerfeldt
2021-11-03 20:11:25 +01:00
committed by GitHub
parent e54106e950
commit 49e43885ff
32 changed files with 294 additions and 199 deletions
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README.md
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@@ -198,14 +198,14 @@ Missing an integration for the thing you're working on? Create one, it is easy!
You need to collect [`egui::RawInput`](https://docs.rs/egui/latest/egui/struct.RawInput.html), paint [`egui::ClippedMesh`](https://docs.rs/epaint/):es and handle [`egui::Output`](https://docs.rs/egui/latest/egui/struct.Output.html). The basic structure is this:
``` rust
let mut egui_ctx = egui::Context::new();
let mut egui_ctx = egui::CtxRef::default();
// Game loop:
loop {
let raw_input: egui::RawInput = my_integration.gather_input();
egui_ctx.begin_frame(raw_input);
my_app.ui(&mut egui_ctx); // add panels, windows and widgets to `egui_ctx` here
let (output, shapes) = egui_ctx.end_frame();
let (output, shapes) = egui_ctx.run(raw_input, |egui_ctx| {
my_app.ui(egui_ctx); // add panels, windows and widgets to `egui_ctx` here
});
let clipped_meshes = egui_ctx.tessellate(shapes); // create triangles to paint
my_integration.paint(clipped_meshes);
my_integration.set_cursor_icon(output.cursor_icon);