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mirror of https://github.com/emilk/egui.git synced 2026-06-26 22:53:14 -04:00

eframe: Replace Frame::update with fn logic and fn ui (#7775)

* Part of https://github.com/emilk/egui/issues/5113
* Part of https://github.com/emilk/egui/issues/3524

## What
This deprecates `eframe::App::update` and replaces it with two new
functions:

```rs
pub trait App {
	/// Called just before `ui`, and in the future this will
    /// also be called for background apps when needed.
	fn logic(&mut self, ctx: &egui::Context, frame: &mut Frame) { }
	
    /// Show your user interface to the user.
	fn ui(&mut self, ui: &mut egui::Ui, frame: &mut Frame);

	…
}
```

Similarly, `Context::run` is deprecated in favor of `Context::run_ui`.

`Plugin`s are now handed a `Ui` instead of just a `Context` in
`on_begin/end_frame`.

## TODO
…either in this PR or a later one
* [x] Deprecate `App::update`
* [x] Deprecate `Context::run`
* [x] Change plugins to get a `Ui`
* [x] Update kittest
* [x] Change viewports to get UI:s (`show_viewport_immediate` etc)
  - https://github.com/emilk/egui/pull/7779

## Later PRs
* [ ] Deprecate `Panel::show`
* [ ] Deprecate `CentralPanel::show`
* [ ] Deprecate `CentralPanel` ?
This commit is contained in:
Emil Ernerfeldt
2025-12-16 17:05:50 +01:00
committed by GitHub
parent 9487dc35ec
commit 2f6fe9c572
52 changed files with 417 additions and 321 deletions

View File

@@ -25,7 +25,7 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
struct MyTestApp {}
impl eframe::App for MyTestApp {
fn update(&mut self, ctx: &egui::Context, frame: &mut eframe::Frame) {
fn ui(&mut self, ui: &mut egui::Ui, frame: &mut eframe::Frame) {
use glow::HasContext as _;
let gl = frame.gl().unwrap();
@@ -37,7 +37,7 @@ impl eframe::App for MyTestApp {
gl.clear(glow::COLOR_BUFFER_BIT);
}
egui::Window::new("Floating Window").show(ctx, |ui| {
egui::Window::new("Floating Window").show(ui.ctx(), |ui| {
ui.label("The background should be purple.");
});
}

View File

@@ -7,9 +7,9 @@ fn main() -> eframe::Result {
env_logger::init(); // Use `RUST_LOG=debug` to see logs.
let options = eframe::NativeOptions::default();
eframe::run_simple_native("My egui App", options, move |ctx, _frame| {
eframe::run_ui_native("My egui App", options, move |ui, _frame| {
// A bottom panel to force the tooltips to consider if the fit below or under the widget:
egui::Panel::bottom("bottom").show(ctx, |ui| {
egui::Panel::bottom("bottom").show_inside(ui, |ui| {
ui.horizontal(|ui| {
ui.vertical(|ui| {
ui.label("Single tooltips:");
@@ -33,10 +33,10 @@ fn main() -> eframe::Result {
});
});
egui::CentralPanel::default().show(ctx, |ui| {
egui::CentralPanel::default().show_inside(ui, |ui| {
ui.horizontal(|ui| {
if ui.button("Reset egui memory").clicked() {
ctx.memory_mut(|mem| *mem = Default::default());
ui.memory_mut(|mem| *mem = Default::default());
}
ui.with_layout(egui::Layout::right_to_left(egui::Align::BOTTOM), |ui| {

View File

@@ -31,10 +31,10 @@ struct MyApp {
}
impl eframe::App for MyApp {
fn update(&mut self, ctx: &egui::Context, _frame: &mut eframe::Frame) {
ctx.all_styles_mut(|style| style.interaction.tooltip_delay = 0.0);
fn ui(&mut self, ui: &mut egui::Ui, _frame: &mut eframe::Frame) {
ui.all_styles_mut(|style| style.interaction.tooltip_delay = 0.0);
egui::Panel::left("side_panel_left").show(ctx, |ui| {
egui::Panel::left("side_panel_left").show_inside(ui, |ui| {
ui.heading("Information");
ui.label(
"This is a demo/test environment of the `UiStack` feature. The tables display \
@@ -49,7 +49,7 @@ impl eframe::App for MyApp {
ui.checkbox(&mut self.show_memory, "📝 Memory");
ui.add_space(10.0);
if ui.button("Reset egui memory").clicked() {
ctx.memory_mut(|mem| *mem = Default::default());
ui.memory_mut(|mem| *mem = Default::default());
}
ui.add_space(20.0);
@@ -82,7 +82,7 @@ impl eframe::App for MyApp {
});
});
egui::Panel::right("side_panel_right").show(ctx, |ui| {
egui::Panel::right("side_panel_right").show_inside(ui, |ui| {
egui::ScrollArea::both().auto_shrink(false).show(ui, |ui| {
stack_ui(ui);
@@ -92,7 +92,7 @@ impl eframe::App for MyApp {
});
});
egui::CentralPanel::default().show(ctx, |ui| {
egui::CentralPanel::default().show_inside(ui, |ui| {
egui::ScrollArea::both().auto_shrink(false).show(ui, |ui| {
ui.label("stack here:");
stack_ui(ui);
@@ -172,7 +172,7 @@ impl eframe::App for MyApp {
egui::Panel::bottom("bottom_panel")
.resizable(true)
.show(ctx, |ui| {
.show_inside(ui, |ui| {
egui::ScrollArea::vertical()
.auto_shrink(false)
.show(ui, |ui| {
@@ -186,30 +186,31 @@ impl eframe::App for MyApp {
egui::Window::new("Window")
.pivot(egui::Align2::RIGHT_TOP)
.show(ctx, |ui| {
.show(ui.ctx(), |ui| {
full_span_widget(ui, false);
ui.add_space(20.0);
stack_ui(ui);
});
let ctx = ui.ctx().clone();
egui::Window::new("🔧 Settings")
.open(&mut self.show_settings)
.vscroll(true)
.show(ctx, |ui| {
.show(&ctx, |ui| {
ctx.settings_ui(ui);
});
egui::Window::new("🔍 Inspection")
.open(&mut self.show_inspection)
.vscroll(true)
.show(ctx, |ui| {
.show(&ctx, |ui| {
ctx.inspection_ui(ui);
});
egui::Window::new("📝 Memory")
.open(&mut self.show_memory)
.resizable(false)
.show(ctx, |ui| {
.show(&ctx, |ui| {
ctx.memory_ui(ui);
});
}

View File

@@ -153,18 +153,18 @@ impl Default for App {
}
impl eframe::App for App {
fn update(&mut self, ctx: &egui::Context, _frame: &mut eframe::Frame) {
egui::CentralPanel::default().show(ctx, |ui| {
fn ui(&mut self, ui: &mut egui::Ui, _frame: &mut eframe::Frame) {
egui::CentralPanel::default().show_inside(ui, |ui| {
ui.heading("Root viewport");
{
let mut embed_viewports = ctx.embed_viewports();
let mut embed_viewports = ui.embed_viewports();
ui.checkbox(&mut embed_viewports, "Embed all viewports");
if ui.button("Open all viewports").clicked() {
for viewport in &self.top {
viewport.write().set_visible_recursive(true);
}
}
ctx.set_embed_viewports(embed_viewports);
ui.set_embed_viewports(embed_viewports);
}
ui.checkbox(&mut self.close_button, "with close button");
generic_ui(ui, &self.top, self.close_button);