Struct PreviewState 

pub struct PreviewState {

    pub open: bool,
    pub scroll: usize,
    pub kind: Option<PreviewKind>,
    pub lines: Vec<PreviewLine>,
    pub source_len: usize,
    pub opened_at: Option<Instant>,
    pub anim_pending: bool,
    pub hscroll: usize,
    pub base_dir: Option<PathBuf>,
    pub cell_dims: (u32, u32),
    pub anim_from: f32,
    pub anim_to: f32,
    pub closing: bool,
    pub just_closed: bool,
    pub media_path: Option<PathBuf>,
}

Fields

open: bool

scroll: usize

kind: Option<PreviewKind>

lines: Vec<PreviewLine>

Cached rendered lines (rebuild on open / buffer change fingerprint)

source_len: usize

opened_at: Option<Instant>

Animation clock — armed by open/close, started by the first render (see anim_progress), so synchronous open work can’t eat the window.

anim_pending: bool

hscroll: usize

Horizontal pan for long pretty lines (wrap_lines = false).

base_dir: Option<PathBuf>

Directory of the previewed file (relative image resolution).

cell_dims: (u32, u32)

(cell_w_px, cell_h_px) for image row budgeting.

anim_from: f32

Openness endpoints for the current phase (0 = source, 1 = fully pretty).

anim_to: f32

closing: bool

True while exit transform plays (open stays true until done).

just_closed: bool

One-shot: close animation just finished.

media_path: Option<PathBuf>

Media preview path (image / audio / npy) — not necessarily the buffer.

Implementations

impl PreviewState

pub fn new() -> Self

pub fn visible(&self) -> bool

pub fn is_animating(&self) -> bool

pub fn close_immediate(&mut self)

Instant hide (no reverse sweep).

pub fn close(&mut self)

Start reverse transform (pretty → source). Keeps open until done.

pub fn open_for(&mut self, text: &str, ext: Option<&str>)

pub fn anim_progress(&mut self) -> f32

Linear openness 0.0..=1.0 (0 = source view, 1 = full pretty).

pub fn open_path(&mut self, path: &Path) -> Result<(), String>

Open media / pretty file from a path (explorer or command).

pub fn take_just_closed(&mut self) -> bool

pub fn rebuild(&mut self, text: &str, ext: Option<&str>)

pub fn scroll_by(&mut self, delta: isize, page: usize)

Trait Implementations

impl Clone for PreviewState

fn clone(&self) -> PreviewState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PreviewState

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

Formats the value using the given formatter.

impl Default for PreviewState

fn default() -> Self

Returns the “default value” for a type.