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