From d5869bfeaf0a76a70a0abb723f340aa06fff618a Mon Sep 17 00:00:00 2001 From: Emil Ernerfeldt Date: Fri, 21 Nov 2025 20:22:01 +0100 Subject: [PATCH] Remove some uses of top-level panels in our examples (#7729) We're phasing out top-level panels (panels that use `Context` directly, instead of being inside another `Ui`). As a first step, stop using them in our demo library and application. * Part of https://github.com/emilk/egui/issues/3524 --- crates/egui/src/containers/panel.rs | 14 ++- .../egui_demo_app/src/apps/custom3d_glow.rs | 39 ++++---- .../egui_demo_app/src/apps/custom3d_wgpu.rs | 39 ++++---- crates/egui_demo_app/src/apps/http_app.rs | 10 +-- crates/egui_demo_app/src/apps/image_viewer.rs | 12 +-- crates/egui_demo_app/src/lib.rs | 8 ++ crates/egui_demo_app/src/wrap_app.rs | 88 +++++++++---------- crates/egui_demo_lib/benches/benchmark.rs | 16 +++- .../src/demo/demo_app_windows.rs | 56 ++++++------ crates/egui_demo_lib/src/demo/panels.rs | 1 + .../src/easy_mark/easy_mark_editor.rs | 6 +- crates/egui_demo_lib/src/lib.rs | 8 +- examples/hello_android/src/lib.rs | 4 +- 13 files changed, 165 insertions(+), 136 deletions(-) diff --git a/crates/egui/src/containers/panel.rs b/crates/egui/src/containers/panel.rs index eb60f5f21..670e4758b 100644 --- a/crates/egui/src/containers/panel.rs +++ b/crates/egui/src/containers/panel.rs @@ -976,15 +976,25 @@ pub struct CentralPanel { } impl CentralPanel { + /// A central panel with no margin or background color + pub fn no_frame() -> Self { + Self { + frame: Some(Frame::NONE), + } + } + + /// A central panel with a background color and some inner margins + pub fn default_margins() -> Self { + Self { frame: None } + } + /// Change the background color, margins, etc. #[inline] pub fn frame(mut self, frame: Frame) -> Self { self.frame = Some(frame); self } -} -impl CentralPanel { /// Show the panel inside a [`Ui`]. pub fn show_inside( self, diff --git a/crates/egui_demo_app/src/apps/custom3d_glow.rs b/crates/egui_demo_app/src/apps/custom3d_glow.rs index 803f6156f..30380e31f 100644 --- a/crates/egui_demo_app/src/apps/custom3d_glow.rs +++ b/crates/egui_demo_app/src/apps/custom3d_glow.rs @@ -22,26 +22,27 @@ impl Custom3d { } } -impl eframe::App for Custom3d { - fn update(&mut self, ctx: &egui::Context, _frame: &mut eframe::Frame) { - egui::CentralPanel::default().show(ctx, |ui| { - egui::ScrollArea::both() - .auto_shrink(false) - .show(ui, |ui| { - ui.horizontal(|ui| { - ui.spacing_mut().item_spacing.x = 0.0; - ui.label("The triangle is being painted using "); - ui.hyperlink_to("glow", "https://github.com/grovesNL/glow"); - ui.label(" (OpenGL)."); - }); - ui.label("It's not a very impressive demo, but it shows you can embed 3D inside of egui."); - - egui::Frame::canvas(ui.style()).show(ui, |ui| { - self.custom_painting(ui); - }); - ui.label("Drag to rotate!"); - ui.add(egui_demo_lib::egui_github_link_file!()); +impl crate::DemoApp for Custom3d { + fn demo_ui(&mut self, ui: &mut egui::Ui, _frame: &mut eframe::Frame) { + // TODO(emilk): Use `ScrollArea::inner_margin` + egui::CentralPanel::default().show_inside(ui, |ui| { + egui::ScrollArea::both().auto_shrink(false).show(ui, |ui| { + ui.horizontal(|ui| { + ui.spacing_mut().item_spacing.x = 0.0; + ui.label("The triangle is being painted using "); + ui.hyperlink_to("glow", "https://github.com/grovesNL/glow"); + ui.label(" (OpenGL)."); }); + ui.label( + "It's not a very impressive demo, but it shows you can embed 3D inside of egui.", + ); + + egui::Frame::canvas(ui.style()).show(ui, |ui| { + self.custom_painting(ui); + }); + ui.label("Drag to rotate!"); + ui.add(egui_demo_lib::egui_github_link_file!()); + }); }); } diff --git a/crates/egui_demo_app/src/apps/custom3d_wgpu.rs b/crates/egui_demo_app/src/apps/custom3d_wgpu.rs index d3b10d480..0be1ed19b 100644 --- a/crates/egui_demo_app/src/apps/custom3d_wgpu.rs +++ b/crates/egui_demo_app/src/apps/custom3d_wgpu.rs @@ -98,26 +98,27 @@ impl Custom3d { } } -impl eframe::App for Custom3d { - fn update(&mut self, ctx: &egui::Context, _frame: &mut eframe::Frame) { - egui::CentralPanel::default().show(ctx, |ui| { - egui::ScrollArea::both() - .auto_shrink(false) - .show(ui, |ui| { - ui.horizontal(|ui| { - ui.spacing_mut().item_spacing.x = 0.0; - ui.label("The triangle is being painted using "); - ui.hyperlink_to("WGPU", "https://wgpu.rs"); - ui.label(" (Portable Rust graphics API awesomeness)"); - }); - ui.label("It's not a very impressive demo, but it shows you can embed 3D inside of egui."); - - egui::Frame::canvas(ui.style()).show(ui, |ui| { - self.custom_painting(ui); - }); - ui.label("Drag to rotate!"); - ui.add(egui_demo_lib::egui_github_link_file!()); +impl crate::DemoApp for Custom3d { + fn demo_ui(&mut self, ui: &mut egui::Ui, _frame: &mut eframe::Frame) { + // TODO(emilk): Use `ScrollArea::inner_margin` + egui::CentralPanel::default().show_inside(ui, |ui| { + egui::ScrollArea::both().auto_shrink(false).show(ui, |ui| { + ui.horizontal(|ui| { + ui.spacing_mut().item_spacing.x = 0.0; + ui.label("The triangle is being painted using "); + ui.hyperlink_to("WGPU", "https://wgpu.rs"); + ui.label(" (Portable Rust graphics API awesomeness)"); }); + ui.label( + "It's not a very impressive demo, but it shows you can embed 3D inside of egui.", + ); + + egui::Frame::canvas(ui.style()).show(ui, |ui| { + self.custom_painting(ui); + }); + ui.label("Drag to rotate!"); + ui.add(egui_demo_lib::egui_github_link_file!()); + }); }); } } diff --git a/crates/egui_demo_app/src/apps/http_app.rs b/crates/egui_demo_app/src/apps/http_app.rs index 2630fa862..8953f09e7 100644 --- a/crates/egui_demo_app/src/apps/http_app.rs +++ b/crates/egui_demo_app/src/apps/http_app.rs @@ -59,16 +59,16 @@ impl Default for HttpApp { } } -impl eframe::App for HttpApp { - fn update(&mut self, ctx: &egui::Context, frame: &mut eframe::Frame) { - egui::Panel::bottom("http_bottom").show(ctx, |ui| { +impl crate::DemoApp for HttpApp { + fn demo_ui(&mut self, ui: &mut egui::Ui, frame: &mut eframe::Frame) { + egui::Panel::bottom("http_bottom").show_inside(ui, |ui| { let layout = egui::Layout::top_down(egui::Align::Center).with_main_justify(true); ui.allocate_ui_with_layout(ui.available_size(), layout, |ui| { ui.add(egui_demo_lib::egui_github_link_file!()) }) }); - egui::CentralPanel::default().show(ctx, |ui| { + egui::CentralPanel::default().show_inside(ui, |ui| { let prev_url = self.url.clone(); let trigger_fetch = ui_url(ui, frame, &mut self.url); @@ -80,7 +80,7 @@ impl eframe::App for HttpApp { }); if trigger_fetch { - let ctx = ctx.clone(); + let ctx = ui.ctx().clone(); let (sender, promise) = Promise::new(); let request = ehttp::Request::get(&self.url); ehttp::fetch(request, move |response| { diff --git a/crates/egui_demo_app/src/apps/image_viewer.rs b/crates/egui_demo_app/src/apps/image_viewer.rs index 052996eef..11cc68b6b 100644 --- a/crates/egui_demo_app/src/apps/image_viewer.rs +++ b/crates/egui_demo_app/src/apps/image_viewer.rs @@ -48,15 +48,15 @@ impl Default for ImageViewer { } } -impl eframe::App for ImageViewer { - fn update(&mut self, ctx: &egui::Context, _: &mut eframe::Frame) { - egui::Panel::top("url bar").show(ctx, |ui| { +impl crate::DemoApp for ImageViewer { + fn demo_ui(&mut self, ui: &mut egui::Ui, _: &mut eframe::Frame) { + egui::Panel::top("url bar").show_inside(ui, |ui| { ui.horizontal_centered(|ui| { let label = ui.label("URI:"); ui.text_edit_singleline(&mut self.uri_edit_text) .labelled_by(label.id); if ui.small_button("✔").clicked() { - ctx.forget_image(&self.current_uri); + ui.ctx().forget_image(&self.current_uri); self.uri_edit_text = self.uri_edit_text.trim().to_owned(); self.current_uri = self.uri_edit_text.clone(); } @@ -71,7 +71,7 @@ impl eframe::App for ImageViewer { }); }); - egui::Panel::left("controls").show(ctx, |ui| { + egui::Panel::left("controls").show_inside(ui, |ui| { // uv ui.label("UV"); ui.add(Slider::new(&mut self.image_options.uv.min.x, 0.0..=1.0).text("min x")); @@ -197,7 +197,7 @@ impl eframe::App for ImageViewer { } }); - egui::CentralPanel::default().show(ctx, |ui| { + egui::CentralPanel::default().show_inside(ui, |ui| { egui::ScrollArea::both().show(ui, |ui| { let mut image = egui::Image::from_uri(&self.current_uri); image = image.uv(self.image_options.uv); diff --git a/crates/egui_demo_app/src/lib.rs b/crates/egui_demo_app/src/lib.rs index 05b3c4bd6..40264fd8e 100644 --- a/crates/egui_demo_app/src/lib.rs +++ b/crates/egui_demo_app/src/lib.rs @@ -15,6 +15,14 @@ pub(crate) fn seconds_since_midnight() -> f64 { time.num_seconds_from_midnight() as f64 + 1e-9 * (time.nanosecond() as f64) } +/// Trait that wraps different parts of the demo app. +pub trait DemoApp { + fn demo_ui(&mut self, ui: &mut egui::Ui, frame: &mut eframe::Frame); + + #[cfg(feature = "glow")] + fn on_exit(&mut self, _gl: Option<&eframe::glow::Context>) {} +} + // ---------------------------------------------------------------------------- #[cfg(feature = "accessibility_inspector")] pub mod accessibility_inspector; diff --git a/crates/egui_demo_app/src/wrap_app.rs b/crates/egui_demo_app/src/wrap_app.rs index c118f280c..1d0a2390e 100644 --- a/crates/egui_demo_app/src/wrap_app.rs +++ b/crates/egui_demo_app/src/wrap_app.rs @@ -1,4 +1,4 @@ -use egui_demo_lib::is_mobile; +use egui_demo_lib::{DemoWindows, is_mobile}; #[cfg(feature = "glow")] use eframe::glow; @@ -6,29 +6,25 @@ use eframe::glow; #[cfg(target_arch = "wasm32")] use core::any::Any; +use crate::DemoApp; + #[derive(Default)] #[cfg_attr(feature = "serde", derive(serde::Deserialize, serde::Serialize))] struct EasyMarkApp { editor: egui_demo_lib::easy_mark::EasyMarkEditor, } -impl eframe::App for EasyMarkApp { - fn update(&mut self, ctx: &egui::Context, _frame: &mut eframe::Frame) { - self.editor.panels(ctx); +impl DemoApp for EasyMarkApp { + fn demo_ui(&mut self, ui: &mut egui::Ui, _frame: &mut eframe::Frame) { + self.editor.panels(ui); } } // ---------------------------------------------------------------------------- -#[derive(Default)] -#[cfg_attr(feature = "serde", derive(serde::Deserialize, serde::Serialize))] -pub struct DemoApp { - demo_windows: egui_demo_lib::DemoWindows, -} - -impl eframe::App for DemoApp { - fn update(&mut self, ctx: &egui::Context, _frame: &mut eframe::Frame) { - self.demo_windows.ui(ctx); +impl DemoApp for DemoWindows { + fn demo_ui(&mut self, ui: &mut egui::Ui, _frame: &mut eframe::Frame) { + self.ui(ui); } } @@ -41,15 +37,12 @@ pub struct FractalClockApp { pub mock_time: Option, } -impl eframe::App for FractalClockApp { - fn update(&mut self, ctx: &egui::Context, _frame: &mut eframe::Frame) { - egui::CentralPanel::default() - .frame( - egui::Frame::dark_canvas(&ctx.style()) - .stroke(egui::Stroke::NONE) - .corner_radius(0), - ) - .show(ctx, |ui| { +impl DemoApp for FractalClockApp { + fn demo_ui(&mut self, ui: &mut egui::Ui, _frame: &mut eframe::Frame) { + egui::Frame::dark_canvas(ui.style()) + .stroke(egui::Stroke::NONE) + .corner_radius(0) + .show(ui, |ui| { self.fractal_clock .ui(ui, self.mock_time.or(Some(crate::seconds_since_midnight()))); }); @@ -64,13 +57,13 @@ pub struct ColorTestApp { color_test: egui_demo_lib::ColorTest, } -impl eframe::App for ColorTestApp { - fn update(&mut self, ctx: &egui::Context, frame: &mut eframe::Frame) { - egui::CentralPanel::default().show(ctx, |ui| { +impl DemoApp for ColorTestApp { + fn demo_ui(&mut self, ui: &mut egui::Ui, frame: &mut eframe::Frame) { + egui::CentralPanel::default().show_inside(ui, |ui| { if frame.is_web() { ui.label( - "NOTE: Some old browsers stuck on WebGL1 without sRGB support will not pass the color test.", - ); + "NOTE: Some old browsers stuck on WebGL1 without sRGB support will not pass the color test.", + ); ui.separator(); } egui::ScrollArea::both().auto_shrink(false).show(ui, |ui| { @@ -155,7 +148,7 @@ enum Command { #[cfg_attr(feature = "serde", derive(serde::Deserialize, serde::Serialize))] #[cfg_attr(feature = "serde", serde(default))] pub struct State { - demo: DemoApp, + demo: DemoWindows, easy_mark_editor: EasyMarkApp, #[cfg(feature = "http")] http: crate::apps::HttpApp, @@ -209,34 +202,34 @@ impl WrapApp { pub fn apps_iter_mut( &mut self, - ) -> impl Iterator { + ) -> impl Iterator { let mut vec = vec![ ( "✨ Demos", Anchor::Demo, - &mut self.state.demo as &mut dyn eframe::App, + &mut self.state.demo as &mut dyn DemoApp, ), ( "🖹 EasyMark editor", Anchor::EasyMarkEditor, - &mut self.state.easy_mark_editor as &mut dyn eframe::App, + &mut self.state.easy_mark_editor as &mut dyn DemoApp, ), #[cfg(feature = "http")] ( "⬇ HTTP", Anchor::Http, - &mut self.state.http as &mut dyn eframe::App, + &mut self.state.http as &mut dyn DemoApp, ), ( "🕑 Fractal Clock", Anchor::Clock, - &mut self.state.clock as &mut dyn eframe::App, + &mut self.state.clock as &mut dyn DemoApp, ), #[cfg(feature = "image_viewer")] ( "🖼 Image Viewer", Anchor::ImageViewer, - &mut self.state.image_viewer as &mut dyn eframe::App, + &mut self.state.image_viewer as &mut dyn DemoApp, ), ]; @@ -245,14 +238,14 @@ impl WrapApp { vec.push(( "🔺 3D painting", Anchor::Custom3d, - custom3d as &mut dyn eframe::App, + custom3d as &mut dyn DemoApp, )); } vec.push(( "🎨 Rendering test", Anchor::Rendering, - &mut self.state.rendering_test as &mut dyn eframe::App, + &mut self.state.rendering_test as &mut dyn DemoApp, )); vec.into_iter() @@ -306,11 +299,13 @@ impl eframe::App for WrapApp { self.state.backend_panel.update(ctx, frame); - if !is_mobile(ctx) { - cmd = self.backend_panel(ctx, frame); - } + egui::CentralPanel::no_frame().show(ctx, |ui| { + if !is_mobile(ctx) { + cmd = self.backend_panel(ui, frame); + } - self.show_selected_app(ctx, frame); + self.show_selected_app(ui, frame); + }); self.state.backend_panel.end_of_frame(ctx); @@ -333,17 +328,16 @@ impl eframe::App for WrapApp { } impl WrapApp { - fn backend_panel(&mut self, ctx: &egui::Context, frame: &mut eframe::Frame) -> Command { + fn backend_panel(&mut self, ui: &mut egui::Ui, frame: &mut eframe::Frame) -> Command { // The backend-panel can be toggled on/off. // We show a little animation when the user switches it. - let is_open = - self.state.backend_panel.open || ctx.memory(|mem| mem.everything_is_visible()); + let is_open = self.state.backend_panel.open || ui.memory(|mem| mem.everything_is_visible()); let mut cmd = Command::Nothing; egui::Panel::left("backend_panel") .resizable(false) - .show_animated(ctx, is_open, |ui| { + .show_animated_inside(ui, is_open, |ui| { ui.add_space(4.0); ui.vertical_centered(|ui| { ui.heading("💻 Backend"); @@ -393,11 +387,11 @@ impl WrapApp { }); } - fn show_selected_app(&mut self, ctx: &egui::Context, frame: &mut eframe::Frame) { + fn show_selected_app(&mut self, ui: &mut egui::Ui, frame: &mut eframe::Frame) { let selected_anchor = self.state.selected_anchor; for (_name, anchor, app) in self.apps_iter_mut() { - if anchor == selected_anchor || ctx.memory(|mem| mem.everything_is_visible()) { - app.update(ctx, frame); + if anchor == selected_anchor || ui.memory(|mem| mem.everything_is_visible()) { + app.demo_ui(ui, frame); } } } diff --git a/crates/egui_demo_lib/benches/benchmark.rs b/crates/egui_demo_lib/benches/benchmark.rs index 48e7d5207..90468770b 100644 --- a/crates/egui_demo_lib/benches/benchmark.rs +++ b/crates/egui_demo_lib/benches/benchmark.rs @@ -29,7 +29,9 @@ pub fn criterion_benchmark(c: &mut Criterion) { c.bench_function("demo_with_tessellate__realistic", |b| { b.iter(|| { let full_output = ctx.run(RawInput::default(), |ctx| { - demo_windows.ui(ctx); + egui::CentralPanel::default().show(ctx, |ui| { + demo_windows.ui(ui); + }); }); ctx.tessellate(full_output.shapes, full_output.pixels_per_point) }); @@ -38,13 +40,17 @@ pub fn criterion_benchmark(c: &mut Criterion) { c.bench_function("demo_no_tessellate", |b| { b.iter(|| { ctx.run(RawInput::default(), |ctx| { - demo_windows.ui(ctx); + egui::CentralPanel::default().show(ctx, |ui| { + demo_windows.ui(ui); + }); }) }); }); let full_output = ctx.run(RawInput::default(), |ctx| { - demo_windows.ui(ctx); + egui::CentralPanel::default().show(ctx, |ui| { + demo_windows.ui(ui); + }); }); c.bench_function("demo_only_tessellate", |b| { b.iter(|| ctx.tessellate(full_output.shapes.clone(), full_output.pixels_per_point)); @@ -58,7 +64,9 @@ pub fn criterion_benchmark(c: &mut Criterion) { c.bench_function("demo_full_no_tessellate", |b| { b.iter(|| { ctx.run(RawInput::default(), |ctx| { - demo_windows.ui(ctx); + egui::CentralPanel::default().show(ctx, |ui| { + demo_windows.ui(ui); + }); }) }); }); diff --git a/crates/egui_demo_lib/src/demo/demo_app_windows.rs b/crates/egui_demo_lib/src/demo/demo_app_windows.rs index 179543680..d6f92b284 100644 --- a/crates/egui_demo_lib/src/demo/demo_app_windows.rs +++ b/crates/egui_demo_lib/src/demo/demo_app_windows.rs @@ -195,11 +195,11 @@ impl Default for DemoWindows { impl DemoWindows { /// Show the app ui (menu bar and windows). - pub fn ui(&mut self, ctx: &Context) { - if is_mobile(ctx) { - self.mobile_ui(ctx); + pub fn ui(&mut self, ui: &mut egui::Ui) { + if is_mobile(ui.ctx()) { + self.mobile_ui(ui); } else { - self.desktop_ui(ctx); + self.desktop_ui(ui); } } @@ -207,36 +207,36 @@ impl DemoWindows { self.open.contains(About::default().name()) } - fn mobile_ui(&mut self, ctx: &Context) { + fn mobile_ui(&mut self, ui: &mut egui::Ui) { if self.about_is_open() { let mut close = false; - egui::CentralPanel::default().show(ctx, |ui| { - egui::ScrollArea::vertical() - .auto_shrink(false) - .show(ui, |ui| { - self.groups.about.ui(ui); - ui.add_space(12.0); - ui.vertical_centered_justified(|ui| { - if ui - .button(egui::RichText::new("Continue to the demo!").size(20.0)) - .clicked() - { - close = true; - } - }); + + egui::ScrollArea::vertical() + .auto_shrink(false) + .show(ui, |ui| { + self.groups.about.ui(ui); + ui.add_space(12.0); + ui.vertical_centered_justified(|ui| { + if ui + .button(egui::RichText::new("Continue to the demo!").size(20.0)) + .clicked() + { + close = true; + } }); - }); + }); + if close { set_open(&mut self.open, About::default().name(), false); } } else { - self.mobile_top_bar(ctx); - self.groups.windows(ctx, &mut self.open); + self.mobile_top_bar(ui); + self.groups.windows(ui.ctx(), &mut self.open); } } - fn mobile_top_bar(&mut self, ctx: &Context) { - egui::Panel::top("menu_bar").show(ctx, |ui| { + fn mobile_top_bar(&mut self, ui: &mut egui::Ui) { + egui::Panel::top("menu_bar").show_inside(ui, |ui| { menu::MenuBar::new() .config(menu::MenuConfig::new().style(StyleModifier::default())) .ui(ui, |ui| { @@ -261,12 +261,12 @@ impl DemoWindows { }); } - fn desktop_ui(&mut self, ctx: &Context) { + fn desktop_ui(&mut self, ui: &mut egui::Ui) { egui::Panel::right("egui_demo_panel") .resizable(false) .default_size(160.0) .min_size(160.0) - .show(ctx, |ui| { + .show_inside(ui, |ui| { ui.add_space(4.0); ui.vertical_centered(|ui| { ui.heading("✒ egui demos"); @@ -289,13 +289,13 @@ impl DemoWindows { self.demo_list_ui(ui); }); - egui::Panel::top("menu_bar").show(ctx, |ui| { + egui::Panel::top("menu_bar").show_inside(ui, |ui| { menu::MenuBar::new().ui(ui, |ui| { file_menu_button(ui); }); }); - self.groups.windows(ctx, &mut self.open); + self.groups.windows(ui.ctx(), &mut self.open); } fn demo_list_ui(&mut self, ui: &mut egui::Ui) { diff --git a/crates/egui_demo_lib/src/demo/panels.rs b/crates/egui_demo_lib/src/demo/panels.rs index 55771c1a1..957166c4f 100644 --- a/crates/egui_demo_lib/src/demo/panels.rs +++ b/crates/egui_demo_lib/src/demo/panels.rs @@ -72,6 +72,7 @@ impl crate::View for Panels { }); }); + // TODO(emilk): This extra panel is superfluous - just use what's left of `ui` instead egui::CentralPanel::default().show_inside(ui, |ui| { ui.vertical_centered(|ui| { ui.heading("Central Panel"); diff --git a/crates/egui_demo_lib/src/easy_mark/easy_mark_editor.rs b/crates/egui_demo_lib/src/easy_mark/easy_mark_editor.rs index 28e12630e..2969c6d3d 100644 --- a/crates/egui_demo_lib/src/easy_mark/easy_mark_editor.rs +++ b/crates/egui_demo_lib/src/easy_mark/easy_mark_editor.rs @@ -32,15 +32,15 @@ impl Default for EasyMarkEditor { } impl EasyMarkEditor { - pub fn panels(&mut self, ctx: &egui::Context) { - egui::Panel::bottom("easy_mark_bottom").show(ctx, |ui| { + pub fn panels(&mut self, ui: &mut egui::Ui) { + egui::Panel::bottom("easy_mark_bottom").show_inside(ui, |ui| { let layout = egui::Layout::top_down(egui::Align::Center).with_main_justify(true); ui.allocate_ui_with_layout(ui.available_size(), layout, |ui| { ui.add(crate::egui_github_link_file!()) }) }); - egui::CentralPanel::default().show(ctx, |ui| { + egui::CentralPanel::default().show_inside(ui, |ui| { self.ui(ui); }); } diff --git a/crates/egui_demo_lib/src/lib.rs b/crates/egui_demo_lib/src/lib.rs index 76be28859..7ba48b0d8 100644 --- a/crates/egui_demo_lib/src/lib.rs +++ b/crates/egui_demo_lib/src/lib.rs @@ -74,7 +74,9 @@ fn test_egui_e2e() { const NUM_FRAMES: usize = 5; for _ in 0..NUM_FRAMES { let full_output = ctx.run(raw_input.clone(), |ctx| { - demo_windows.ui(ctx); + egui::CentralPanel::default().show(ctx, |ui| { + demo_windows.ui(ui); + }); }); let clipped_primitives = ctx.tessellate(full_output.shapes, full_output.pixels_per_point); assert!(!clipped_primitives.is_empty()); @@ -93,7 +95,9 @@ fn test_egui_zero_window_size() { const NUM_FRAMES: usize = 5; for _ in 0..NUM_FRAMES { let full_output = ctx.run(raw_input.clone(), |ctx| { - demo_windows.ui(ctx); + egui::CentralPanel::default().show(ctx, |ui| { + demo_windows.ui(ui); + }); }); let clipped_primitives = ctx.tessellate(full_output.shapes, full_output.pixels_per_point); assert!( diff --git a/examples/hello_android/src/lib.rs b/examples/hello_android/src/lib.rs index 1de7684f5..87007c110 100644 --- a/examples/hello_android/src/lib.rs +++ b/examples/hello_android/src/lib.rs @@ -45,6 +45,8 @@ impl eframe::App for MyApp { ui.set_height(32.0); }); - self.demo.ui(ctx); + egui::CentralPanel::default().show(ctx, |ui| { + self.demo.ui(ui); + }); } }