Struct ItemId 

pub struct ItemId(/* private fields */);

Opaque identifier for a SceneItem inside a Scene.

Globally unique within a process, generated by ItemId::next. ItemIds are stable across the item’s lifetime in a scene, and the scene never reuses one: ItemId::next only ever counts up, so a removal can never be confused with a later, unrelated insertion.

The one door that puts a retired id back is Scene::restore, which re-inserts a RemovedItem salvaged by Scene::take at its original id. That is not reuse — it is the same item coming back — and it is deliberate: selection, magnets, the logical AT tree and every app side-map key on the id, so an undone deletion that minted a fresh id would restore the pixels and lose all of it. See Scene::restore.

Implementations

impl ItemId

pub fn as_u64(self) -> u64

Raw numeric value, used by AccessKit’s synthetic-NodeId derivation.

Trait Implementations

impl Clone for ItemId

fn clone(&self) -> ItemId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ItemId

impl Debug for ItemId

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

Formats the value using the given formatter.

impl Eq for ItemId

impl Hash for ItemId

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for ItemId

fn cmp(&self, other: &ItemId) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for ItemId

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for ItemId

fn partial_cmp(&self, other: &ItemId) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for ItemId