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Replace chrono with time in clock example

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Héctor Ramón Jiménez 2022-01-12 20:16:33 +07:00
parent 8f97619785
commit aaf2444e9f
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GPG key ID: 140CC052C94F138E
2 changed files with 14 additions and 11 deletions
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2
examples/clock/Cargo.toml
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@ -7,4 +7,4 @@ publish = false
[dependencies]
iced = { path = "../..", features = ["canvas", "tokio", "debug"] }
chrono = "0.4"
time = { version = "0.3.5", features = ["local-offset"] }

23
examples/clock/src/main.rs
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@ -1,7 +1,7 @@
use iced::{
canvas::{self, Cache, Canvas, Cursor, Geometry, LineCap, Path, Stroke},
executor, time, Application, Color, Command, Container, Element, Length,
Point, Rectangle, Settings, Subscription, Vector,
executor, Application, Color, Command, Container, Element, Length, Point,
Rectangle, Settings, Subscription, Vector,
};
pub fn main() -> iced::Result {
@ -12,13 +12,13 @@ pub fn main() -> iced::Result {
}
struct Clock {
now: chrono::DateTime<chrono::Local>,
now: time::OffsetDateTime,
clock: Cache,
}
#[derive(Debug, Clone, Copy)]
enum Message {
Tick(chrono::DateTime<chrono::Local>),
Tick(time::OffsetDateTime),
}
impl Application for Clock {
@ -29,7 +29,8 @@ impl Application for Clock {
fn new(_flags: ()) -> (Self, Command<Message>) {
(
Clock {
now: chrono::Local::now(),
now: time::OffsetDateTime::now_local()
.unwrap_or_else(|_| time::OffsetDateTime::now_utc()),
clock: Default::default(),
},
Command::none(),
@ -56,8 +57,12 @@ impl Application for Clock {
}
fn subscription(&self) -> Subscription<Message> {
time::every(std::time::Duration::from_millis(500))
.map(|_| Message::Tick(chrono::Local::now()))
iced::time::every(std::time::Duration::from_millis(500)).map(|_| {
Message::Tick(
time::OffsetDateTime::now_local()
.unwrap_or_else(|_| time::OffsetDateTime::now_utc()),
)
})
}
fn view(&mut self) -> Element<Message> {
@ -77,8 +82,6 @@ impl Application for Clock {
impl canvas::Program<Message> for Clock {
fn draw(&self, bounds: Rectangle, _cursor: Cursor) -> Vec<Geometry> {
use chrono::Timelike;
let clock = self.clock.draw(bounds.size(), |frame| {
let center = frame.center();
let radius = frame.width().min(frame.height()) / 2.0;
@ -126,7 +129,7 @@ impl canvas::Program<Message> for Clock {
}
}
fn hand_rotation(n: u32, total: u32) -> f32 {
fn hand_rotation(n: u8, total: u8) -> f32 {
let turns = n as f32 / total as f32;
2.0 * std::f32::consts::PI * turns