47 lines
1.4 KiB
Rust
47 lines
1.4 KiB
Rust
use crate::{element::LayoutId, style::Style};
|
|
use anyhow::{anyhow, Result};
|
|
use derive_more::{Deref, DerefMut};
|
|
use gpui::{geometry::Size, taffy::style::Overflow, MeasureParams};
|
|
pub use gpui::{taffy::tree::NodeId, LayoutContext as LegacyLayoutContext};
|
|
|
|
#[derive(Deref, DerefMut)]
|
|
pub struct LayoutContext<'a, 'b, 'c, 'd, V> {
|
|
#[deref]
|
|
#[deref_mut]
|
|
pub(crate) legacy_cx: &'d mut LegacyLayoutContext<'a, 'b, 'c, V>,
|
|
}
|
|
|
|
impl<'a, 'b, 'c, 'd, V: 'static> LayoutContext<'a, 'b, 'c, 'd, V> {
|
|
pub fn new(legacy_cx: &'d mut LegacyLayoutContext<'a, 'b, 'c, V>) -> Self {
|
|
Self { legacy_cx }
|
|
}
|
|
|
|
pub fn add_layout_node(
|
|
&mut self,
|
|
style: Style,
|
|
children: impl IntoIterator<Item = NodeId>,
|
|
) -> Result<LayoutId> {
|
|
let rem_size = self.rem_size();
|
|
let style = style.to_taffy(rem_size);
|
|
let id = self
|
|
.legacy_cx
|
|
.layout_engine()
|
|
.ok_or_else(|| anyhow!("no layout engine"))?
|
|
.add_node(style, children)?;
|
|
|
|
Ok(id)
|
|
}
|
|
|
|
pub fn add_measured_layout_node<F>(&mut self, style: Style, measure: F) -> Result<LayoutId>
|
|
where
|
|
F: Fn(MeasureParams) -> Size<f32> + Sync + Send + 'static,
|
|
{
|
|
let rem_size = self.rem_size();
|
|
let layout_id = self
|
|
.layout_engine()
|
|
.ok_or_else(|| anyhow!("no layout engine"))?
|
|
.add_measured_node(style.to_taffy(rem_size), measure)?;
|
|
|
|
Ok(layout_id)
|
|
}
|
|
}
|