Struct ScrollbackWindow 

pub struct ScrollbackWindow {
    pub total_lines: usize,
    pub max_scroll_offset: usize,
    pub scroll_offset_from_bottom: usize,
    pub viewport_start: usize,
    pub viewport_end: usize,
    pub render_start: usize,
    pub render_end: usize,
}

Computed visible/render window over scrollback for virtualized rendering.

Indexes are in scrollback space (0 = oldest, total_lines = one past newest).

Fields

total_lines: usize

Total lines currently stored in scrollback.

max_scroll_offset: usize

Maximum legal scroll offset from the newest viewport position.

scroll_offset_from_bottom: usize

Clamped scroll offset from the newest viewport position.

viewport_start: usize

Visible viewport start (inclusive).

viewport_end: usize

Visible viewport end (exclusive).

render_start: usize

Render start including overscan (inclusive).

render_end: usize

Render end including overscan (exclusive).

Implementations

impl ScrollbackWindow

pub fn viewport_range(self) -> Range<usize>

Visible viewport range.

pub fn render_range(self) -> Range<usize>

Render range including overscan.

pub fn viewport_len(self) -> usize

Number of visible viewport lines.

pub fn render_len(self) -> usize

Number of lines in the render range (viewport + overscan).

Trait Implementations

impl Clone for ScrollbackWindow

fn clone(&self) -> ScrollbackWindow

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ScrollbackWindow

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

Formats the value using the given formatter.

impl PartialEq for ScrollbackWindow

fn eq(&self, other: &ScrollbackWindow) -> 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 Copy for ScrollbackWindow

impl Eq for ScrollbackWindow

impl StructuralPartialEq for ScrollbackWindow