Enum Usage 

pub enum Usage {
    Known(KnownUsage),
    Unknown(u16),
}

A Usage ID, that does not encode its parent page.

Variants

Known(KnownUsage)

A Usage value that remembers its parent page.

Unknown(u16)

A standalone Usage value that cannot be decoded without page context.

Implementations

impl Usage

pub fn new(page: UsagePage, id: u16) -> Self

Create a new Usage value, using context from a specific Usage Page.

If the Usage Page is known, this will attempt to return a KnownUsage variant corresponding to that page.

pub fn without_page(id: u16) -> Self

Construct a usage without UsagePage context.

pub fn to_integer(&self) -> u16

Return the u16 value of the usage id.

Trait Implementations

impl Clone for Usage

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Usage

impl Debug for Usage

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

Formats the value using the given formatter.

impl Display for Usage

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

Formats the value using the given formatter.

impl PartialEq for Usage

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Usage