71 lines
1.6 KiB
Rust
71 lines
1.6 KiB
Rust
|
use crate::{style, Bus, Element, Length, Widget};
|
||
|
|
use dodrio::bumpalo;
|
||
|
|
|
||
|
|
/// An amount of empty space.
|
||
|
|
///
|
||
|
|
/// It can be useful if you want to fill some space with nothing.
|
||
|
|
///
|
||
|
|
/// [`Empty`]: struct.Empty.html
|
||
|
|
#[derive(Debug)]
|
||
|
|
pub struct Empty {
|
||
|
|
width: Length,
|
||
|
|
height: Length,
|
||
|
|
}
|
||
|
|
|
||
|
|
impl Empty {
|
||
|
|
/// Creates an amount of [`Empty`] space.
|
||
|
|
///
|
||
|
|
/// [`Empty`]: struct.Empty.html
|
||
|
|
pub fn new() -> Self {
|
||
|
|
Empty {
|
||
|
|
width: Length::Shrink,
|
||
|
|
height: Length::Shrink,
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Sets the width of the [`Empty`] space.
|
||
|
|
///
|
||
|
|
/// [`Empty`]: struct..html
|
||
|
|
pub fn width(mut self, width: Length) -> Self {
|
||
|
|
self.width = width;
|
||
|
|
self
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Sets the height of the [`Empty`] space.
|
||
|
|
///
|
||
|
|
/// [`Empty`]: struct.Column.html
|
||
|
|
pub fn height(mut self, height: Length) -> Self {
|
||
|
|
self.height = height;
|
||
|
|
self
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
impl<'a, Message> Widget<Message> for Empty {
|
||
|
|
fn node<'b>(
|
||
|
|
&self,
|
||
|
|
bump: &'b bumpalo::Bump,
|
||
|
|
_publish: &Bus<Message>,
|
||
|
|
_style_sheet: &mut style::Sheet<'b>,
|
||
|
|
) -> dodrio::Node<'b> {
|
||
|
|
use dodrio::builder::*;
|
||
|
|
|
||
|
|
let width = style::length(self.width);
|
||
|
|
let height = style::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<Empty> for Element<'a, Message> {
|
||
|
|
fn from(empty: Empty) -> Element<'a, Message> {
|
||
|
|
Element::new(empty)
|
||
|
|
}
|
||
|
|
}
|