1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
use std::fmt::{self, Debug, Formatter};
use std::rc::Rc;
use fontdock::{FallbackTree, FontVariant};
use super::*;
use crate::shaping;
/// A text node.
#[derive(Clone, PartialEq)]
pub struct Text {
pub text: String,
pub size: Length,
pub dir: Dir,
pub fallback: Rc<FallbackTree>,
pub variant: FontVariant,
pub aligns: Gen<Align>,
}
#[async_trait(?Send)]
impl Layout for Text {
async fn layout(
&self,
ctx: &mut LayoutContext,
_constraints: LayoutConstraints,
) -> Vec<LayoutItem> {
let mut loader = ctx.loader.borrow_mut();
let boxed = shaping::shape(
&self.text,
self.size,
self.dir,
&mut loader,
&self.fallback,
self.variant,
)
.await;
vec![LayoutItem::Box(boxed, self.aligns)]
}
}
impl Debug for Text {
fn fmt(&self, f: &mut Formatter) -> fmt::Result {
write!(f, "Text({})", self.text)
}
}
impl From<Text> for LayoutNode {
fn from(text: Text) -> Self {
Self::Text(text)
}
}
|
