Enum ChangeAction 

pub enum ChangeAction {
    None,
    Remove,
    Clear,
}

A special action for the layer.

Variants

None

No special action to the layer.

Remove

Remove the current layer.

Clear

Remove all layers.

Trait Implementations

impl Clone for ChangeAction

fn clone(&self) -> ChangeAction

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ChangeAction

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for ChangeAction

fn eq(&self, other: &ChangeAction) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for ChangeAction

impl Eq for ChangeAction

impl StructuralPartialEq for ChangeAction