Trait freya::prelude::LayoutMeasurer

pub trait LayoutMeasurer<Key>
where
    Key: NodeKey,
{
    // Required methods
    fn measure(
        &mut self,
        node_id: Key,
        node: &Node,
        size: &Size2D<f32, Measure>,
    ) -> Option<(Size2D<f32, Measure>, Arc<Map<dyn Any + Sync + Send>>)>;
    fn should_measure_inner_children(&mut self, node_id: Key) -> bool;

    // Provided method
    fn notify_layout_references(
        &self,
        _node_id: Key,
        _area: Rect<f32, Measure>,
        _inner_sizes: Size2D<f32, Measure>,
    ) { ... }
}

Required Methods

fn measure( &mut self, node_id: Key, node: &Node, size: &Size2D<f32, Measure>, ) -> Option<(Size2D<f32, Measure>, Arc<Map<dyn Any + Sync + Send>>)>

fn should_measure_inner_children(&mut self, node_id: Key) -> bool

Provided Methods

fn notify_layout_references( &self, _node_id: Key, _area: Rect<f32, Measure>, _inner_sizes: Size2D<f32, Measure>, )

Implementors

impl LayoutMeasurer<usize> for TestingMeasurer

impl<'a> LayoutMeasurer<EntityId> for SkiaMeasurer<'a>