Struct MinimapReadout 

#[non_exhaustive]
pub struct MinimapReadout {
    pub extent: Rect,
    pub viewport: Rect,
    pub position: Point,
    pub coverage: Size,
}

Where the viewport sits inside the picture the minimap is drawing — the numbers behind the AT node’s announced value, as plain fractions.

Handed to an access_readout closure so an app can phrase and translate the announcement itself. Everything here is derived from the same effective_extent the picture is projected through, so a readout can never describe a frame other than the one on screen.

#[non_exhaustive]: the crate hands this to consumer code — it is the argument of an access_readout closure — and a readout may learn to carry another number. Build one with new.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

extent: Rect

The scene-space rect actually projected onto the drawing area: content_bounds ∪ every item rect ∪ viewport.

viewport: Rect

The viewport rect, in scene coordinates.

position: Point

The viewport centre’s position inside extent, per axis, in 0.0..=1.0 (leading/top → trailing/bottom). A degenerate axis reads 0.5 — dead centre of a scene with no extent along it.

coverage: Size

How much of extent the viewport covers, per axis, in 0.0..=1.0. A degenerate axis reads 1.0: you are seeing all there is of it.

Implementations

impl MinimapReadout

pub fn new( extent: Rect, viewport: Rect, position: Point, coverage: Size, ) -> Self

A readout stated field by field — the constructor #[non_exhaustive] takes the place of a struct literal for. The minimap derives its own; this is for a consumer testing its own phrasing closure.

Trait Implementations

impl Clone for MinimapReadout

fn clone(&self) -> MinimapReadout

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for MinimapReadout

impl Debug for MinimapReadout

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

Formats the value using the given formatter.

impl PartialEq for MinimapReadout

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for MinimapReadout