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/// Example app showing how to use delegate types from Smithay's client toolkit and initializing state.
use smithay_client_toolkit::{
delegate_shm,
shm::{Shm, ShmHandler},
};
use wayland_client::{
globals::{registry_queue_init, GlobalListContents},
protocol::wl_registry,
Connection, Dispatch, QueueHandle,
};
struct ListShmFormats {
shm_state: Shm,
}
fn main() {
// Initialize logging for Rust backend.
env_logger::init();
// Connect to the compositor.
let conn = Connection::connect_to_env().unwrap();
// Create an event queue and get the initial global list.
let (globals, mut event_queue) = registry_queue_init(&conn).unwrap();
let qh = event_queue.handle();
// Create the state to dispatch.
let mut list_formats = ListShmFormats {
// Bind ShmState to implement wl_shm handling.
shm_state: Shm::bind(&globals, &qh).expect("wl_shm is not available"),
};
// Roundtrip to get the supported wl_shm formats.
event_queue.roundtrip(&mut list_formats).unwrap();
println!("Supported formats:");
for format in list_formats.shm_state.formats() {
println!("{format:?}");
}
}
impl ShmHandler for ListShmFormats {
fn shm_state(&mut self) -> &mut Shm {
&mut self.shm_state
}
}
// Delegate handling of the wl_shm protocol to our state object.
delegate_shm!(ListShmFormats);
impl Dispatch<wl_registry::WlRegistry, GlobalListContents> for ListShmFormats {
fn event(
_state: &mut Self,
_registry: &wl_registry::WlRegistry,
_event: wl_registry::Event,
_data: &GlobalListContents,
_conn: &Connection,
_qh: &QueueHandle<Self>,
) {
// We don't need any other globals.
}
}
|
