egui/crates/egui_demo_lib/src/demo/panels.rs

96 lines
3.0 KiB
Rust

#[derive(Clone, Default, PartialEq, Eq)]
#[cfg_attr(feature = "serde", derive(serde::Deserialize, serde::Serialize))]
pub struct Panels {}
impl crate::Demo for Panels {
fn name(&self) -> &'static str {
"🗖 Panels"
}
fn show(&mut self, ctx: &egui::Context, open: &mut bool) {
use crate::View as _;
let window = egui::Window::new("Panels")
.default_width(600.0)
.default_height(400.0)
.vscroll(false)
.open(open);
window.show(ctx, |ui| self.ui(ui));
}
}
impl crate::View for Panels {
fn ui(&mut self, ui: &mut egui::Ui) {
// Note that the order we add the panels is very important!
egui::TopBottomPanel::top("top_panel")
.resizable(true)
.min_height(32.0)
.show_inside(ui, |ui| {
egui::ScrollArea::vertical().show(ui, |ui| {
ui.vertical_centered(|ui| {
ui.heading("Expandable Upper Panel");
});
lorem_ipsum(ui);
});
});
egui::SidePanel::left("left_panel")
.resizable(true)
.default_width(150.0)
.width_range(80.0..=200.0)
.show_inside(ui, |ui| {
ui.vertical_centered(|ui| {
ui.heading("Left Panel");
});
egui::ScrollArea::vertical().show(ui, |ui| {
lorem_ipsum(ui);
});
});
egui::SidePanel::right("right_panel")
.resizable(true)
.default_width(150.0)
.width_range(80.0..=200.0)
.show_inside(ui, |ui| {
ui.vertical_centered(|ui| {
ui.heading("Right Panel");
});
egui::ScrollArea::vertical().show(ui, |ui| {
lorem_ipsum(ui);
});
});
egui::TopBottomPanel::bottom("bottom_panel")
.resizable(false)
.min_height(0.0)
.show_inside(ui, |ui| {
ui.vertical_centered(|ui| {
ui.heading("Bottom Panel");
});
ui.vertical_centered(|ui| {
ui.add(crate::egui_github_link_file!());
});
});
egui::CentralPanel::default().show_inside(ui, |ui| {
ui.vertical_centered(|ui| {
ui.heading("Central Panel");
});
egui::ScrollArea::vertical().show(ui, |ui| {
lorem_ipsum(ui);
});
});
}
}
fn lorem_ipsum(ui: &mut egui::Ui) {
ui.with_layout(
egui::Layout::top_down(egui::Align::LEFT).with_cross_justify(true),
|ui| {
ui.label(egui::RichText::new(crate::LOREM_IPSUM_LONG).small().weak());
ui.add(egui::Separator::default().grow(8.0));
ui.label(egui::RichText::new(crate::LOREM_IPSUM_LONG).small().weak());
},
);
}