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>;
}
Expand description
Tracks state of active layers.
Required Methods§
Sourcefn activate(&mut self, layer: LayerIndex)
fn activate(&mut self, layer: LayerIndex)
Activate the given layer.
Sourcefn deactivate(&mut self, layer: LayerIndex)
fn deactivate(&mut self, layer: LayerIndex)
Deactivate the given layer.
Sourcefn active_layers(&self) -> impl Iterator<Item = LayerIndex>
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.