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Add Harness::new_eframe and TestRenderer trait (#5539)

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Co-authored-by: Andreas Reich <r_andreas2@web.de>
This commit is contained in:
lucasmerlin
2025-01-02 17:48:39 +01:00
committed by GitHub
parent ee4ab08c8a
commit 46b58e5bcc
28 changed files with 593 additions and 180 deletions
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43
crates/egui_kittest/src/app_kind.rs
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@@ -5,37 +5,22 @@ type AppKindUiState<'a, State> = Box<dyn FnMut(&mut egui::Ui, &mut State) + 'a>;
type AppKindContext<'a> = Box<dyn FnMut(&egui::Context) + 'a>;
type AppKindUi<'a> = Box<dyn FnMut(&mut egui::Ui) + 'a>;
/// In order to access the [`eframe::App`] trait from the generic `State`, we store a function pointer
/// here that will return the dyn trait from the struct. In the builder we have the correct where
/// clause to be able to create this.
/// Later we can use it anywhere to get the [`eframe::App`] from the `State`.
#[cfg(feature = "eframe")]
type AppKindEframe<'a, State> = (fn(&mut State) -> &mut dyn eframe::App, eframe::Frame);
pub(crate) enum AppKind<'a, State> {
Context(AppKindContext<'a>),
Ui(AppKindUi<'a>),
ContextState(AppKindContextState<'a, State>),
UiState(AppKindUiState<'a, State>),
#[cfg(feature = "eframe")]
Eframe(AppKindEframe<'a, State>),
}
// TODO(lucasmerlin): These aren't working unfortunately :(
// I think they should work though: https://geo-ant.github.io/blog/2021/rust-traits-and-variadic-functions/
// pub trait IntoAppKind<'a, UiKind> {
// fn into_harness_kind(self) -> AppKind<'a>;
// }
//
// impl<'a, F> IntoAppKind<'a, &egui::Context> for F
// where
// F: FnMut(&egui::Context) + 'a,
// {
// fn into_harness_kind(self) -> AppKind<'a> {
// AppKind::Context(Box::new(self))
// }
// }
//
// impl<'a, F> IntoAppKind<'a, &mut egui::Ui> for F
// where
// F: FnMut(&mut egui::Ui) + 'a,
// {
// fn into_harness_kind(self) -> AppKind<'a> {
// AppKind::Ui(Box::new(self))
// }
// }
impl<'a, State> AppKind<'a, State> {
pub fn run(
&mut self,
@@ -54,6 +39,12 @@ impl<'a, State> AppKind<'a, State> {
f(ctx, state);
None
}
#[cfg(feature = "eframe")]
AppKind::Eframe((get_app, frame)) => {
let app = get_app(state);
app.update(ctx, frame);
None
}
kind_ui => Some(kind_ui.run_ui(ctx, state, sizing_pass)),
}
}
@@ -78,7 +69,9 @@ impl<'a, State> AppKind<'a, State> {
.show(ui, |ui| match self {
AppKind::Ui(f) => f(ui),
AppKind::UiState(f) => f(ui, state),
_ => unreachable!(),
_ => unreachable!(
"run_ui should only be called with AppKind::Ui or AppKind UiState"
),
});
})
.response