Struct Overlay 

pub struct Overlay {
    pub selection: Vec<SelectionSpan>,
    pub matches: Vec<SelectionSpan>,
    pub markers: Vec<MarkerPosition>,
    pub marker_lines: Vec<MarkerLine>,
}

Interaction overlays projected onto the viewport (#108): highlight spans the engine carries on the frame so a frame-mode consumer can paint them without an in-process model query. Positions only — highlight colour is the consumer’s (theme-agnostic). Coordinates are viewport rows/cols, re-projected by frame() against the scroll offset so the engine stays the single anchoring authority.

Fields

selection: Vec<SelectionSpan>

The live selection projected onto visible rows (selection_range).

matches: Vec<SelectionSpan>

The active search highlights projected onto visible rows. Search matches are consumer-owned (next/prev navigation holds the Vec<Match>), so the consumer hands the active set back via set_search_highlights and the engine projects it here — mirroring how the engine-owned selection rides.

markers: Vec<MarkerPosition>

Engine-owned markers visible in this viewport (#118): persistent line anchors for decorations. Unlike the selection (cleared on a screen swap) and search highlights (invalidated on output), markers re-anchor through buffer mutation and survive an alt-screen excursion; only their viewport position rides here.

marker_lines: Vec<MarkerLine>

Every live marker’s absolute buffer line (#120 S3, v11), on-screen or not — the overview ruler needs off-viewport anchors, which markers (viewport- only) can’t supply. A superset of markers by id; different frame of reference (absolute line, not viewport row).

Trait Implementations

impl Clone for Overlay

fn clone(&self) -> Overlay

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Overlay

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

Formats the value using the given formatter.

impl Default for Overlay

fn default() -> Overlay

Returns the “default value” for a type.

impl Eq for Overlay

impl PartialEq for Overlay

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