pixel_widgets/widget/
spacer.rs

1use crate::draw::*;
2use crate::layout::{Rectangle, Size};
3use crate::node::{IntoNode, Node};
4use crate::style::Stylesheet;
5use crate::widget::*;
6
7/// Empty widget. Default size is (fill(1), fill(1)).
8#[derive(Default)]
9pub struct Spacer;
10
11impl<'a, T> Widget<'a, T> for Spacer {
12    type State = ();
13
14    fn mount(&self) {}
15
16    fn widget(&self) -> &'static str {
17        "spacer"
18    }
19
20    fn len(&self) -> usize {
21        0
22    }
23
24    fn visit_children(&mut self, _: &mut dyn FnMut(&mut dyn GenericNode<'a, T>)) {}
25
26    fn size(&self, _: &(), style: &Stylesheet) -> (Size, Size) {
27        style.background.resolve_size(
28            (style.width, style.height),
29            (Size::Exact(0.0), Size::Exact(0.0)),
30            style.padding,
31        )
32    }
33
34    fn draw(&mut self, _: &mut (), layout: Rectangle, _clip: Rectangle, style: &Stylesheet) -> Vec<Primitive<'a>> {
35        style.background.render(layout).into_iter().collect()
36    }
37}
38
39impl<'a, T: 'a> IntoNode<'a, T> for Spacer {
40    fn into_node(self) -> Node<'a, T> {
41        Node::from_widget(self)
42    }
43}
pixel_widgets/widget/spacer.rs

pixel_widgets/widget/
spacer.rs
