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Experiment with calculating an Ui's "intrinsic size" by remembering the widget's size

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This commit is contained in:
Lucas Meurer
2025-03-02 11:48:37 +01:00
parent 962c7c7516
commit 80d218cf71
8 changed files with 87 additions and 16 deletions
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50
examples/hello_world_simple/src/main.rs
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@@ -2,6 +2,7 @@
#![allow(rustdoc::missing_crate_level_docs)] // it's an example
use eframe::egui;
use eframe::egui::{Align, Button, Layout, Popup, TextWrapMode, Widget};
fn main() -> eframe::Result {
env_logger::init(); // Log to stderr (if you run with `RUST_LOG=debug`).
@@ -15,19 +16,46 @@ fn main() -> eframe::Result {
let mut name = "Arthur".to_owned();
let mut age = 42;
let mut checked = true;
eframe::run_simple_native("My egui App", options, move |ctx, _frame| {
egui::CentralPanel::default().show(ctx, |ui| {
ui.heading("My egui Application");
ui.horizontal(|ui| {
let name_label = ui.label("Your name: ");
ui.text_edit_singleline(&mut name)
.labelled_by(name_label.id);
});
ui.add(egui::Slider::new(&mut age, 0..=120).text("age"));
if ui.button("Increment").clicked() {
age += 1;
}
ui.label(format!("Hello '{name}', age {age}"));
// ui.heading("My egui Application");
// ui.horizontal(|ui| {
// let name_label = ui.label("Your name: ");
// ui.text_edit_singleline(&mut name)
// .labelled_by(name_label.id);
// });
// ui.add(egui::Slider::new(&mut age, 0..=120).text("age"));
// if ui.button("Increment").clicked() {
// age += 1;
// }
// ui.label(format!("Hello '{name}', age {age}"));
let response = ui.button("Hiiii");
let text = if checked {
"short"
} else {
"Very long text for this item that should be wrapped"
};
Popup::from_response(&response)
.layout(Layout::top_down_justified(Align::Min))
.show(|ui| {
// ui.checkbox(&mut checked, text);
ui.button("Hiiii");
if Button::new(text)
.wrap_mode(TextWrapMode::Extend)
.ui(ui)
.clicked()
{
checked = !checked;
}
ui.button("Some other button");
});
});
})
}