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strip_demo.rs
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strip_demo.rs
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use egui::Color32;
use egui_extras::{Size, StripBuilder};
/// Shows off a table with dynamic layout
#[cfg_attr(feature = "serde", derive(serde::Deserialize, serde::Serialize))]
#[derive(Default)]
pub struct StripDemo {}
impl super::Demo for StripDemo {
fn name(&self) -> &'static str {
"▣ Strip Demo"
}
fn show(&mut self, ctx: &egui::Context, open: &mut bool) {
egui::Window::new(self.name())
.open(open)
.resizable(true)
.default_width(400.0)
.show(ctx, |ui| {
use super::View as _;
self.ui(ui);
});
}
}
impl super::View for StripDemo {
fn ui(&mut self, ui: &mut egui::Ui) {
let dark_mode = ui.visuals().dark_mode;
let faded_color = ui.visuals().window_fill();
let faded_color = |color: Color32| -> Color32 {
use egui::Rgba;
let t = if dark_mode { 0.95 } else { 0.8 };
egui::lerp(Rgba::from(color)..=Rgba::from(faded_color), t).into()
};
StripBuilder::new(ui)
.size(Size::exact(50.0))
.size(Size::remainder())
.size(Size::relative(0.5).at_least(60.0))
.size(Size::exact(10.0))
.vertical(|mut strip| {
strip.cell(|ui| {
ui.painter().rect_filled(
ui.available_rect_before_wrap(),
0.0,
faded_color(Color32::BLUE),
);
ui.label("width: 100%\nheight: 50px");
});
strip.strip(|builder| {
builder.sizes(Size::remainder(), 2).horizontal(|mut strip| {
strip.cell(|ui| {
ui.painter().rect_filled(
ui.available_rect_before_wrap(),
0.0,
faded_color(Color32::RED),
);
ui.label("width: 50%\nheight: remaining");
});
strip.strip(|builder| {
builder.sizes(Size::remainder(), 3).vertical(|mut strip| {
strip.empty();
strip.cell(|ui| {
ui.painter().rect_filled(
ui.available_rect_before_wrap(),
0.0,
faded_color(Color32::YELLOW),
);
ui.label("width: 50%\nheight: 1/3 of the red region");
});
strip.empty();
});
});
});
});
strip.strip(|builder| {
builder
.size(Size::remainder())
.size(Size::exact(120.0))
.size(Size::remainder())
.size(Size::exact(70.0))
.horizontal(|mut strip| {
strip.empty();
strip.strip(|builder| {
builder
.size(Size::remainder())
.size(Size::exact(60.0))
.size(Size::remainder())
.vertical(|mut strip| {
strip.empty();
strip.cell(|ui| {
ui.painter().rect_filled(
ui.available_rect_before_wrap(),
0.0,
faded_color(Color32::GOLD),
);
ui.label("width: 120px\nheight: 60px");
});
});
});
strip.empty();
strip.cell(|ui| {
ui.painter().rect_filled(
ui.available_rect_before_wrap(),
0.0,
faded_color(Color32::GREEN),
);
ui.label("width: 70px\n\nheight: 50%, but at least 60px.");
});
});
});
strip.cell(|ui| {
ui.vertical_centered(|ui| {
ui.add(crate::egui_github_link_file!());
});
});
});
}
}