Enum LayoutDirection 

pub enum LayoutDirection {
    Auto,
    Ltr,
    Rtl,
}

Per-entity layout direction (CSS direction). Tri-state:

• Self::Auto (default) inherits from the parent. The resolve_layout_direction system walks the hierarchy and stamps a concrete ResolvedDirection on every entity.
• Self::Ltr / Self::Rtl are explicit overrides.

Authored via dir="ltr"|"rtl"|"auto" on any markup element. Read downstream by the layout backend (logical Edges resolver + FlexDirection::resolved) and by AccessKit / text shaping.

Variants

Auto

Inherit from the parent (root falls back to DefaultLayoutDirection).

Ltr

Left-to-right writing direction.

Rtl

Right-to-left writing direction.

Trait Implementations

impl Clone for LayoutDirection

fn clone(&self) -> LayoutDirection

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Component for LayoutDirection

where Self: Send + Sync + 'static,

const STORAGE_TYPE: StorageType = bevy_ecs::component::StorageType::Table

A constant indicating the storage type used for this component.

type Mutability = Mutable

A marker type to assist Bevy with determining if this component is mutable, or immutable. Mutable components will have Component<Mutability = Mutable>, while immutable components will instead have Component<Mutability = Immutable>.

fn register_required_components( _requiree: ComponentId, required_components: &mut RequiredComponentsRegistrator<'_, '_>, )

Registers required components.

fn clone_behavior() -> ComponentCloneBehavior

Called when registering this component, allowing to override clone function (or disable cloning altogether) for this component.

fn map_entities<M: EntityMapper>(this: &mut Self, mapper: &mut M)

Maps the entities on this component using the given EntityMapper. This is used to remap entities in contexts like scenes and entity cloning. When deriving Component, this is populated by annotating fields containing entities with #[entities]

fn relationship_accessor() -> Option<ComponentRelationshipAccessor<Self>>

Returns [ComponentRelationshipAccessor] required for working with relationships in dynamic contexts.

fn on_add() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>

Gets the on_add [ComponentHook] for this Component if one is defined.

fn on_insert() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>

Gets the on_insert [ComponentHook] for this Component if one is defined.

fn on_discard() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>

Gets the on_discard [ComponentHook] for this Component if one is defined.

fn on_remove() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>

Gets the on_remove [ComponentHook] for this Component if one is defined.

fn on_despawn() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>

Gets the on_despawn [ComponentHook] for this Component if one is defined.

impl Debug for LayoutDirection

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

Formats the value using the given formatter.

impl Default for LayoutDirection

fn default() -> LayoutDirection

Returns the “default value” for a type.

impl From<&str> for LayoutDirection

fn from(s: &str) -> Self

Parse the markup / CSS spellings. Unknown values map to Self::Auto so the caller can detect “no opinion” - the parser layer separately rejects malformed dir= attributes.

impl Hash for LayoutDirection

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 PartialEq for LayoutDirection

fn eq(&self, other: &LayoutDirection) -> 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 LayoutDirection

impl Eq for LayoutDirection

impl StructuralPartialEq for LayoutDirection