use crate::prelude::*;

#[derive(Default)]
pub struct WidgetPtr {
    pub inner: Option<WidgetId>,
}

impl Widget for WidgetPtr {
    fn draw(&mut self, painter: &mut Painter) {
        if let Some(id) = &self.inner {
            painter.widget(id);
        }
    }

    fn desired_width(&mut self, ctx: &mut SizeCtx) -> Len {
        if let Some(id) = &self.inner {
            ctx.width(id)
        } else {
            Len::ZERO
        }
    }

    fn desired_height(&mut self, ctx: &mut SizeCtx) -> Len {
        if let Some(id) = &self.inner {
            ctx.height(id)
        } else {
            Len::ZERO
        }
    }
}