Struct Pen 

pub struct Pen {
    pub fg: Color,
    pub bg: Color,
    pub flags: CellFlags,
    pub underline_color: Color,
}

The current SGR state — the appearance copied into each printed cell.

Modelling it as a “template cell” mirrors Alacritty: a later slice can make erase (ED/EL) fill cleared cells with bg instead of Default and that is Background Color Erase (BCE), no structural change. See term.rs.

No #[non_exhaustive] (#844): nothing outside this crate has a reason to build one. No public function accepts it — the engine hands it out — and there are zero out-of-crate literal sites, so the attribute would bind nothing it does not already bind.

Fields

fg: Color

bg: Color

flags: CellFlags

underline_color: Color

The underline colour (SGR 58, #520): what an underline / strikethrough draws in, independent of fg. Default means “follow the fg”. It is not packed into the printed Cell (the 12-byte cell is full); the print path stamps a non-default value into the row’s ucolor map. See term.rs::write_glyph.

Implementations

impl Pen

pub fn reset(&mut self)

Reset to default appearance (SGR 0).

pub fn cell(&self, c: char) -> Cell

Build a cell carrying this pen’s appearance and the given glyph.

Trait Implementations

impl Clone for Pen

fn clone(&self) -> Pen

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Pen

impl Debug for Pen

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

Formats the value using the given formatter.

impl Default for Pen

fn default() -> Pen

Returns the “default value” for a type.