Trait LayerState

pub trait LayerState: Copy + Debug {
    // Required methods
    fn activate(&mut self, layer: LayerIndex);
    fn deactivate(&mut self, layer: LayerIndex);
    fn active_layers(&self) -> impl Iterator<Item = LayerIndex>;
}

Tracks state of active layers.

Required Methods

fn activate(&mut self, layer: LayerIndex)

Activate the given layer.

fn deactivate(&mut self, layer: LayerIndex)

Deactivate the given layer.

fn active_layers(&self) -> impl Iterator<Item = LayerIndex>

Get the active layers, from highest active layer to lowest.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl<const L: usize> LayerState for [bool; L]

fn activate(&mut self, layer: LayerIndex)

fn deactivate(&mut self, layer: LayerIndex)

fn active_layers(&self) -> impl Iterator<Item = LayerIndex>

Implementors