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Initial version with a non-working example

main
Gergely Polonkai 7 months ago
commit acf30d1001
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  1. 321
      Cargo.lock
  2. 8
      Cargo.toml
  3. 154
      src/main.rs

321
Cargo.lock generated

@ -0,0 +1,321 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
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[package]
name = "wl-seasonal-hours-clock"
version = "0.1.0"
edition = "2021"
[dependencies]
smithay-client-toolkit = "0.15"
calloop = "0.9"

@ -0,0 +1,154 @@
extern crate smithay_client_toolkit as sctk;
use calloop::{timer::Timer, EventLoop};
use sctk::reexports::client::protocol::{wl_shm, wl_surface};
use sctk::shm::AutoMemPool;
use sctk::window::{Event as WEvent, FallbackFrame};
sctk::default_environment!(TimedRefresh, desktop);
fn main() {
let (env, display, queue) = sctk::new_default_environment!(TimedRefresh, 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 = (700, 700);
if !env.get_shell().unwrap().needs_configure() {
redraw(&mut pool, window.surface(), dimensions).expect("Failed to draw");
window.refresh()
}
let mut event_loop = EventLoop::<Option<WEvent>>::try_new().unwrap();
let handle = event_loop.handle();
let source = Timer::new().expect("Failed to create timer event source!");
let timer_handle = source.handle();
timer_handle.add_timeout(std::time::Duration::from_secs(1), "");
handle.insert_source(source, |_, timer_handle, _| {
println!("Redraw!");
redraw(&mut pool, window.surface(), dimensions).expect("Failed to draw");
window.refresh();
timer_handle.add_timeout(std::time::Duration::from_secs(1), "");
});
sctk::WaylandSource::new(queue).quick_insert(handle).unwrap();
loop {
// Update every second
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")
}
if let Err(e) = display.flush() {
if e.kind() != ::std::io::ErrorKind::WouldBlock {
eprintln!("Error while trying to flush the wayland socket: {:?}", e);
}
}
event_loop.dispatch(None, &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) {
let r = 0u32;
let g = 0u32;
let b = 0u32;
let a = 255u32;
let r = ::std::cmp::min(0xFF, (0xFF * (0xFF - a) + a * r) / 0xFF);
let g = ::std::cmp::min(0xFF, (0xFF * (0xFF - a) + a * g) / 0xFF);
let b = ::std::cmp::min(0xFF, (0xFF * (0xFF - a) + a * b) / 0xFF);
let pixel: [u8; 4] = ((0xFF << 24) + (r << 16) + (g << 8) + b).to_ne_bytes();
dst_pixel[0] = pixel[0];
dst_pixel[1] = pixel[1];
dst_pixel[2] = pixel[2];
dst_pixel[3] = pixel[3];
}
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(())
}
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