gergely/wl-seasonal-hours-clock
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Initial version that creates an empty window

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Gergely Polonkai 2022-05-16 15:15:34 +02:00
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/target

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Cargo.toml Normal file
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[package]
name = "wl-seasonal-hours-clock"
version = "0.1.0"
edition = "2021"
[dependencies]
smithay-client-toolkit = "0.15"

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# Seasonal Hours Clock on Wayland
This is a Rust implementation of cinnamon’s [Seasonal Hours Clock](https://github.com/cinnamon-bun/seasonal-hours-clock), running as a native Wayland application.

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src/main.rs Normal file
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extern crate smithay_client_toolkit as sctk;
use sctk::reexports::client::protocol::{wl_shm, wl_surface};
use sctk::shm::AutoMemPool;
use sctk::window::{Event as WEvent, FallbackFrame};
sctk::default_environment!(SeasonalClock, desktop);
fn main() {
let (env, _display, mut queue) = sctk::new_default_environment!(SeasonalClock, desktop)
.expect("Unable to connect to a Wayland compositor");
let surface = env
.create_surface_with_scale_callback(|dpi, _surface, _dispatch_data| {
println!("dpi changed to {}", dpi);
})
.detach();
let mut next_action = None::<WEvent>;
let mut window = env
.create_window::<FallbackFrame, _>(
surface,
None,
(100, 100),
move |evt, mut dispatch_data| {
let next_action = dispatch_data.get::<Option<WEvent>>().unwrap();
let replace = matches!(
(&evt, &*next_action),
(_, &None)
| (_, &Some(WEvent::Refresh))
| (&WEvent::Configure { .. }, &Some(WEvent::Configure { .. }))
| (&WEvent::Close, _)
);
if replace {
*next_action = Some(evt);
}
},
)
.expect("Failed to create a window !");
window.set_title("Seasonal Hours Clock".to_string());
let mut pool = env.create_auto_pool().expect("Failed to create the memory pool.");
let mut need_redraw = false;
let mut dimensions = (100, 100);
if !env.get_shell().unwrap().needs_configure() {
redraw(&mut pool, window.surface(), dimensions)
.expect("Failed to draw");
window.refresh()
}
loop {
match next_action.take() {
Some(WEvent::Close) => break,
Some(WEvent::Refresh) => {
window.refresh();
window.surface().commit();
}
Some(WEvent::Configure { new_size, states: _ }) => {
if let Some((w, h)) = new_size {
if dimensions != (w, h) {
dimensions = (w, h);
}
}
window.resize(dimensions.0, dimensions.1);
window.refresh();
need_redraw = true;
}
None => {}
}
if need_redraw {
need_redraw = false;
redraw(
&mut pool,
window.surface(),
dimensions,
)
.expect("Failed to draw")
}
queue.dispatch(&mut next_action, |_, _, _| {}).unwrap();
}
}
fn redraw(
pool: &mut AutoMemPool,
surface: &wl_surface::WlSurface,
(buf_x, buf_y): (u32, u32),
) -> Result<(), ::std::io::Error> {
let (canvas, new_buffer) = pool.buffer(
buf_x as i32,
buf_y as i32,
4 * buf_x as i32,
wl_shm::Format::Argb8888,
)?;
// We do not have anything to draw yet, so draw an empty surface
for dst_pixel in canvas.chunks_exact_mut(4) {
dst_pixel[0] = 0x00;
dst_pixel[1] = 0x00;
dst_pixel[2] = 0x00;
dst_pixel[3] = 0xFF;
}
surface.attach(Some(&new_buffer), 0, 0);
if surface.as_ref().version() >= 4 {
surface.damage_buffer(0, 0, buf_x as i32, buf_y as i32);
} else {
surface.damage(0, 0, buf_x as i32, buf_y as i32);
}
surface.commit();
Ok(())
}