94 lines
2.4 KiB
Rust
94 lines
2.4 KiB
Rust
use iced::alignment;
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use iced::event::{self, Event};
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use iced::widget::{button, checkbox, container, text, Column};
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use iced::window;
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use iced::{Alignment, Command, Element, Length, Subscription};
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pub fn main() -> iced::Result {
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iced::program("Events - Iced", Events::update, Events::view)
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.subscription(Events::subscription)
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.exit_on_close_request(false)
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.run()
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}
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#[derive(Debug, Default)]
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struct Events {
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last: Vec<Event>,
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enabled: bool,
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}
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#[derive(Debug, Clone)]
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enum Message {
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EventOccurred(Event),
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Toggled(bool),
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Exit,
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}
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impl Events {
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fn update(&mut self, message: Message) -> Command<Message> {
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match message {
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Message::EventOccurred(event) if self.enabled => {
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self.last.push(event);
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if self.last.len() > 5 {
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let _ = self.last.remove(0);
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}
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Command::none()
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}
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Message::EventOccurred(event) => {
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if let Event::Window(id, window::Event::CloseRequested) = event
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{
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window::close(id)
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} else {
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Command::none()
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}
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}
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Message::Toggled(enabled) => {
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self.enabled = enabled;
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Command::none()
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}
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Message::Exit => window::close(window::Id::MAIN),
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}
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}
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fn subscription(&self) -> Subscription<Message> {
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event::listen().map(Message::EventOccurred)
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}
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fn view(&self) -> Element<Message> {
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let events = Column::with_children(
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self.last
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.iter()
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.map(|event| text(format!("{event:?}")).size(40))
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.map(Element::from),
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);
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let toggle = checkbox("Listen to runtime events", self.enabled)
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.on_toggle(Message::Toggled);
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let exit = button(
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text("Exit")
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.width(Length::Fill)
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.horizontal_alignment(alignment::Horizontal::Center),
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)
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.width(100)
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.padding(10)
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.on_press(Message::Exit);
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let content = Column::new()
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.align_items(Alignment::Center)
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.spacing(20)
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.push(events)
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.push(toggle)
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.push(exit);
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container(content)
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.width(Length::Fill)
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.height(Length::Fill)
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.center_x()
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.center_y()
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.into()
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}
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}
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