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Implement time::every in iced_futures

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This commit is contained in:
Héctor Ramón Jiménez 2020-04-30 05:37:44 +02:00
parent bb9ccc4f62
commit e2076612cb
14 changed files with 110 additions and 169 deletions
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4
examples/solar_system/Cargo.toml
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@ -6,7 +6,5 @@ edition = "2018"
publish = false
[dependencies]
iced = { path = "../..", features = ["canvas", "async-std", "debug"] }
iced_native = { path = "../../native" }
async-std = { version = "1.0", features = ["unstable"] }
iced = { path = "../..", features = ["canvas", "tokio", "debug"] }
rand = "0.7"

40
examples/solar_system/src/main.rs
View file

@ -8,8 +8,8 @@
//! [1]: https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API/Tutorial/Basic_animations#An_animated_solar_system
use iced::{
canvas::{self, Cursor, Path, Stroke},
executor, window, Application, Canvas, Color, Command, Element, Length,
Point, Rectangle, Settings, Size, Subscription, Vector,
executor, time, window, Application, Canvas, Color, Command, Element,
Length, Point, Rectangle, Settings, Size, Subscription, Vector,
};
use std::time::Instant;
@ -212,39 +212,3 @@ impl<Message> canvas::Program<Message> for State {
vec![background, system]
}
}
mod time {
use iced::futures;
use std::time::Instant;
pub fn every(duration: std::time::Duration) -> iced::Subscription<Instant> {
iced::Subscription::from_recipe(Every(duration))
}
struct Every(std::time::Duration);
impl<H, I> iced_native::subscription::Recipe<H, I> for Every
where
H: std::hash::Hasher,
{
type Output = Instant;
fn hash(&self, state: &mut H) {
use std::hash::Hash;
std::any::TypeId::of::<Self>().hash(state);
self.0.hash(state);
}
fn stream(
self: Box<Self>,
_input: futures::stream::BoxStream<'static, I>,
) -> futures::stream::BoxStream<'static, Self::Output> {
use futures::stream::StreamExt;
async_std::stream::interval(self.0)
.map(|_| Instant::now())
.boxed()
}
}
}