mirror of
https://github.com/creating2morrow/neveko.git
synced 2025-01-07 03:19:42 +00:00
108 lines
3.8 KiB
Rust
108 lines
3.8 KiB
Rust
//! Example how to use `egui_glium`.
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#![cfg_attr(not(debug_assertions), windows_subsystem = "windows")] // hide console window on Windows in release
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use glium::glutin;
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fn main() {
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let event_loop = glutin::event_loop::EventLoopBuilder::with_user_event().build();
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let display = create_display(&event_loop);
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let mut egui_glium = egui_glium::EguiGlium::new(&display, &event_loop);
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let mut color_test = neveko_gui_lib::ColorTest::default();
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event_loop.run(move |event, _, control_flow| {
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let mut redraw = || {
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let mut quit = false;
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let repaint_after = egui_glium.run(&display, |egui_ctx| {
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egui::SidePanel::left("my_side_panel").show(egui_ctx, |ui| {
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ui.heading("Hello World!");
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if ui.button("Quit").clicked() {
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quit = true;
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}
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});
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egui::CentralPanel::default().show(egui_ctx, |ui| {
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egui::ScrollArea::vertical().show(ui, |ui| {
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color_test.ui(ui);
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});
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});
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});
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*control_flow = if quit {
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glutin::event_loop::ControlFlow::Exit
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} else if repaint_after.is_zero() {
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display.gl_window().window().request_redraw();
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glutin::event_loop::ControlFlow::Poll
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} else if let Some(repaint_after_instant) =
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std::time::Instant::now().checked_add(repaint_after)
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{
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glutin::event_loop::ControlFlow::WaitUntil(repaint_after_instant)
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} else {
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glutin::event_loop::ControlFlow::Wait
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};
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{
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use glium::Surface as _;
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let mut target = display.draw();
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let color = egui::Rgba::from_rgb(0.1, 0.3, 0.2);
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target.clear_color(color[0], color[1], color[2], color[3]);
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// draw things behind egui here
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egui_glium.paint(&display, &mut target);
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// draw things on top of egui here
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target.finish().unwrap();
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}
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};
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match event {
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// Platform-dependent event handlers to workaround a winit bug
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// See: https://github.com/rust-windowing/winit/issues/987
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// See: https://github.com/rust-windowing/winit/issues/1619
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glutin::event::Event::RedrawEventsCleared if cfg!(windows) => redraw(),
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glutin::event::Event::RedrawRequested(_) if !cfg!(windows) => redraw(),
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glutin::event::Event::WindowEvent { event, .. } => {
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use glutin::event::WindowEvent;
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if matches!(event, WindowEvent::CloseRequested | WindowEvent::Destroyed) {
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*control_flow = glutin::event_loop::ControlFlow::Exit;
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}
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let event_response = egui_glium.on_event(&event);
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if event_response.repaint {
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display.gl_window().window().request_redraw();
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}
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}
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glutin::event::Event::NewEvents(glutin::event::StartCause::ResumeTimeReached {
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..
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}) => {
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display.gl_window().window().request_redraw();
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}
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_ => (),
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}
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});
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}
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fn create_display(event_loop: &glutin::event_loop::EventLoop<()>) -> glium::Display {
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let window_builder = glutin::window::WindowBuilder::new()
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.with_resizable(true)
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.with_inner_size(glutin::dpi::LogicalSize {
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width: 800.0,
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height: 600.0,
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})
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.with_title("egui_glium example");
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let context_builder = glutin::ContextBuilder::new()
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.with_depth_buffer(0)
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.with_stencil_buffer(0)
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.with_vsync(true);
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glium::Display::new(window_builder, context_builder, event_loop).unwrap()
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}
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