winit-sonoma-fix/examples/theme.rs
Kirill Chibisov 793c535b01
Revert "Propagate error from EventLoop creation" (#3010)
This reverts commit ed26dd58fd.
The patched was merged with a review by accident.
2023-08-06 06:07:01 +04:00

80 lines
2.5 KiB
Rust

#![allow(clippy::single_match)]
use simple_logger::SimpleLogger;
use winit::{
event::{ElementState, Event, KeyEvent, WindowEvent},
event_loop::{ControlFlow, EventLoop},
keyboard::Key,
window::{Theme, WindowBuilder},
};
#[path = "util/fill.rs"]
mod fill;
fn main() -> Result<(), impl std::error::Error> {
SimpleLogger::new().init().unwrap();
let event_loop = EventLoop::new();
let window = WindowBuilder::new()
.with_title("A fantastic window!")
.with_theme(Some(Theme::Dark))
.build(&event_loop)
.unwrap();
println!("Initial theme: {:?}", window.theme());
println!("debugging keys:");
println!(" (A) Automatic theme");
println!(" (L) Light theme");
println!(" (D) Dark theme");
event_loop.run(move |event, _, control_flow| {
*control_flow = ControlFlow::Wait;
match event {
Event::WindowEvent {
event: WindowEvent::CloseRequested,
..
} => *control_flow = ControlFlow::Exit,
Event::WindowEvent {
event: WindowEvent::ThemeChanged(theme),
window_id,
..
} if window_id == window.id() => {
println!("Theme is changed: {theme:?}")
}
Event::WindowEvent {
event:
WindowEvent::KeyboardInput {
event:
KeyEvent {
logical_key: key,
state: ElementState::Pressed,
..
},
..
},
..
} => match key.as_ref() {
Key::Character("A" | "a") => {
println!("Theme was: {:?}", window.theme());
window.set_theme(None);
}
Key::Character("L" | "l") => {
println!("Theme was: {:?}", window.theme());
window.set_theme(Some(Theme::Light));
}
Key::Character("D" | "d") => {
println!("Theme was: {:?}", window.theme());
window.set_theme(Some(Theme::Dark));
}
_ => (),
},
Event::RedrawRequested(_) => {
println!("\nredrawing!\n");
fill::fill_window(&window);
}
_ => (),
}
})
}