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, _layout_node: &LayoutNode) { ... }
}

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, _layout_node: &LayoutNode)

Implementations on Foreign Types

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

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

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

fn notify_layout_references(&self, node_id: EntityId, layout_node: &LayoutNode)

Implementors

impl LayoutMeasurer<usize> for TestingMeasurer