Struct PreviewOverride 

pub struct PreviewOverride {
    pub buffer_id: BufferId,
    pub buffer: BufferKind,
    pub cursor: Position,
    pub scroll: u32,
}

PI.1: a pane’s ephemeral preview projection. Stored host-side in Editor::preview_overrides (keyed by PaneId) so the live Editor::pane_tree stays committed + geometry-only; the override is baked into the published pane-tree leaves each frame.

The preview cursor / scroll live here (not on Editor::cursor / Editor::scroll) so entering / leaving preview never disturbs the committed buffer’s viewport — exit is dropping this value, not restoring anything.

Fields

buffer_id: BufferId

The buffer the pane currently displays. A real registry buffer with its own resolved options (computed read-only via mount_preview); the pane renders it exactly like an inactive split, plus a cursorline at Self::cursor.

buffer: BufferKind

The displayed buffer’s kind (drives the renderer’s per-kind pane dispatch). Preview is Document-only for now (design §10.4).

cursor: Position

Preview cursor inside the displayed buffer. Location previews (gr / grep) seat it on the target line; file previews start at the top.

scroll: u32

First visible line of the displayed buffer in the pane.

Trait Implementations

impl Clone for PreviewOverride

fn clone(&self) -> PreviewOverride

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for PreviewOverride

impl Debug for PreviewOverride

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

Formats the value using the given formatter.

impl PartialEq for PreviewOverride

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for PreviewOverride