duangsuse::Echo

extern create azul; use azul::{ prelude::*, widget::{ label::Label, button::Button } }; struct DataModel { counter: usize } impl Layout for DataModel { fn layout(&self, _info: LayoutInfo<DataModel>): Dom<DataModel> { let label = Label::new(format!("{}"…

extern crate azul;

use azul::{prelude::*, widgets::{label::Label, button::Button}};

struct DataModel {
    counter: usize,
}

impl Layout for DataModel {
    fn layout(&self, _info: LayoutInfo<Self>) -> Dom<Self> {
        let label = Label::new(format!("{}", self.counter)).dom();
        let button = Button::with_label("Update counter").dom()
            .with_callback(On::MouseUp, Callback(update_counter));

        Dom::div()
            .with_child(label)
            .with_child(button)
    }
}

fn update_counter(event: CallbackInfo<DataModel>) -> UpdateScreen {
    event.state.data.counter += 1;
    Redraw
}

fn main() {
    let mut app = App::new(DataModel { counter: 0 }, AppConfig::default()).unwrap();
    let window = app.create_window(WindowCreateOptions::default(), css::native()).unwrap();
    app.run(window).unwrap();
}

这是真实代码

fun main() {
  let mut app = App::create(DataModel { counter = 0 }).unwrap();
  let win_main = Window::create(WindowOptions::default(), css:native).unwrap();
  app.run(win_main).unwrap()
}

fun main() {
  let mut app = App::new(DataModel { counter = 0 }, AppOptions::default()).unwrap();
  let win_main = app.create_window(WindowOptions::default(), css::native).unwrap();
  app.run(win_main).unwrap();
}

unwrap()

几乎写到手软，记得当初信 Rust 教的时候，对这个名词相当困扰，不知道它是 Option<T> 上的一个操作……

40 viewsduangsuse, edited 13:50