Trait ParentDataModifierNode 

pub trait ParentDataModifierNode:
    Any
    + Send
    + Sync
    + 'static {
    // Required method
    fn apply_parent_data(&self, data: &mut ParentDataMap);

    // Provided method
    fn equivalent(&self, _other: &dyn ParentDataModifierNode) -> bool { ... }
}

A node-local parent-data modifier.

Required Methods

fn apply_parent_data(&self, data: &mut ParentDataMap)

Applies parent data visible to the parent layout.

Provided Methods

fn equivalent(&self, _other: &dyn ParentDataModifierNode) -> bool

Returns whether this node supplies the same layout inputs as another.

The default conservatively invalidates the parent layout when the node is replaced. Override this for value-based parent data such as weights.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors