Enum A11yBoundsSpace 

pub enum A11yBoundsSpace {
    Screen,
    Scene,
}

Coordinate space the AT walker reports SceneItem bounds in.

The framework convention is screen-projected bounds — the rectangle a sighted user would see on the physical monitor, after pan/zoom/rotation has been applied. Screen readers consume this for spatial nav (Apple’s “explore by touch”, touch-screen navi- gation, magnifier follow-focus). 99% of apps want this default.

Scene bounds are the raw scene-coord rectangle stored on the item, with no view-transform applied. Use this only for the rare AT clients that reason about scene topology rather than viewport position — typically when a SceneView’s contents have a logical, fixed coordinate system that the user thinks in (a CAD canvas where “the bracket is at (240, 180)” means a fixed physical machine position regardless of zoom level).

Picking the wrong one makes “go to the next item” navigation either a) ignore the user’s current pan (Screen mode in a scene-coord-aware app) or b) report bounds that drift under pan/zoom (Scene mode in a viewport-aware app). Default is Screen — change only when you’ve confirmed your AT users genuinely want the alternative.

Variants

Screen

Screen-projected bounds — view_transform * bounds_in_scene. The framework default; matches the convention used by every other widget in the framework.

Scene

Raw scene-coordinate bounds, with no view-transform applied. Apps with a logical fixed coordinate system (CAD canvases, blueprint editors) may want this so AT users can reason about “where in the design” an item sits, independent of the current pan/zoom.

Trait Implementations

impl Clone for A11yBoundsSpace

fn clone(&self) -> A11yBoundsSpace

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for A11yBoundsSpace

impl Debug for A11yBoundsSpace

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

Formats the value using the given formatter.

impl Default for A11yBoundsSpace

fn default() -> A11yBoundsSpace

Returns the “default value” for a type.

impl Eq for A11yBoundsSpace

impl PartialEq for A11yBoundsSpace

fn eq(&self, other: &A11yBoundsSpace) -> 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 StructuralPartialEq for A11yBoundsSpace