Struct SplitLayout 

pub struct SplitLayout {
    pub sizes: Rc<RefCell<HashMap<RNode, Size>>>,
    pub stacked: Rc<Cell<bool>>,
    pub fraction: Rc<Cell<f64>>,
}

Native split (docs/split.md): the two pane frames are native-owned (an NSSplitView’s, a GtkPaned’s, a QSplitter’s), so Day lays each pane’s content within the size the toolkit last reported via Event::FrameChanged, the InspectorLayout contract. The fallback before the first report divides the host bounds by the bound fraction along the axis.

Fields

sizes: Rc<RefCell<HashMap<RNode, Size>>>

stacked: Rc<Cell<bool>>

Stacked (true) or side by side, as last patched; shared with the piece.

fraction: Rc<Cell<f64>>

The first pane’s share, as last patched; shared with the piece.

Trait Implementations

impl Layout for SplitLayout

fn measure( &self, _cx: &mut dyn LayoutOps, _children: &[RNode], p: Proposal, ) -> Size

fn place(&self, cx: &mut dyn LayoutOps, children: &[RNode], bounds: Rect)

fn baseline( &self, _cx: &mut dyn LayoutOps, _children: &[RNode], _size: Size, ) -> Option<f64>

Where this node’s own first text baseline falls, measured from the top of a box of size (docs/baseline.md). None (the default) means the node has no baseline to offer, so a baseline-aligned parent falls back to box alignment for it.