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use crate::{css, Bus, Css, Element, Length, Widget};
use dodrio::bumpalo;
/// An amount of empty space.
///
/// It can be useful if you want to fill some space with nothing.
#[derive(Debug)]
pub struct Space {
width: Length,
height: Length,
}
impl Space {
/// Creates an amount of empty [`Space`] with the given width and height.
pub fn new(width: Length, height: Length) -> Self {
Space { width, height }
}
/// Creates an amount of horizontal [`Space`].
pub fn with_width(width: Length) -> Self {
Space {
width,
height: Length::Shrink,
}
}
/// Creates an amount of vertical [`Space`].
pub fn with_height(height: Length) -> Self {
Space {
width: Length::Shrink,
height,
}
}
}
impl<'a, Message> Widget<Message> for Space {
fn node<'b>(
&self,
bump: &'b bumpalo::Bump,
_publish: &Bus<Message>,
_css: &mut Css<'b>,
) -> dodrio::Node<'b> {
use dodrio::builder::*;
let width = css::length(self.width);
let height = css::length(self.height);
let style = bumpalo::format!(
in bump,
"width: {}; height: {};",
width,
height
);
div(bump).attr("style", style.into_bump_str()).finish()
}
}
impl<'a, Message> From<Space> for Element<'a, Message> {
fn from(space: Space) -> Element<'a, Message> {
Element::new(space)
}
}
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