Module prelude_wgt 

Prelude for declaring new properties and widgets.

This prelude can be imported over prelude.

Examples

use zng::{prelude::*, prelude_wgt::*};

/// A button with only text child.
#[widget($crate::TextButton)]
pub struct TextButton(Button);

/// Button text.
#[property(CHILD, widget_impl(TextButton))]
pub fn txt(wgt: &mut WidgetBuilding, txt: impl IntoVar<Txt>) {
    let _ = txt;
    wgt.expect_property_capture();
}

impl TextButton {
    fn widget_intrinsic(&mut self) {
        self.widget_builder().push_build_action(|b| {
            let txt = b
                .capture_var::<Txt>(property_id!(Self::txt))
                .unwrap_or_else(|| const_var(Txt::from("")));
            b.set_child(Text!(txt));
        });
    }
}

Re-exports

pub use crate::__prelude_wgt::*;