day-cli 0.0.10

Declarative app development API using native UI toolkits
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use day::prelude::*;

/// Welcome + the classic reactive counter: one `Signal`, two buttons, a live label
/// (https://daybrite.dev/docs/state). No invalidation bookkeeping — the closure label
/// re-renders because it reads `count`.
pub(crate) fn home_page() -> AnyPiece {
    let count = Signal::new(0i64);
    column((
        // A bundled image referenced by its typed constant (§18.5): `res::images::app_logo` is
        // generated from `resource/images/app_logo.png`, so this is a compile error if the file is
        // missing. Replace the placeholder PNG with your own (any name works — the constant follows).
        image(crate::res::images::app_logo).frame(64.0, 64.0),
        label(crate::res::str::home_welcome()).font(Font::Title).id("home-title"),
        label(crate::res::str::home_blurb()),
        row((
            button("−")
                .action(move || count.update(|c| *c -= 1))
                .id("dec"),
            label(move || format!("{}", count.get()))
                .font(Font::Headline)
                .id("count"),
            button("+")
                .action(move || count.update(|c| *c += 1))
                .id("inc"),
        ))
        .spacing(12.0),
    ))
    .spacing(12.0)
    .align(HAlign::Leading)
    .padding(16.0)
    .any()
}