Struct TerminalBuffer 

pub struct TerminalBuffer {
    cells: Vec<Vec<Cell>>,
    cursor_row: usize,
    cursor_col: usize,
    rows: usize,
    cols: usize,
    scrollback: Vec<Vec<Cell>>,
    max_scrollback: usize,
    scroll_top: usize,
    scroll_bottom: usize,
    pub window_title: String,
}

Fields

cells: Vec<Vec<Cell>>

cursor_row: usize

cursor_col: usize

rows: usize

cols: usize

scrollback: Vec<Vec<Cell>>

max_scrollback: usize

scroll_top: usize

DECSTBM scroll region: (top_row, bottom_row) inclusive, 0-indexed.

scroll_bottom: usize

window_title: String

Window title set by OSC 0/1/2.

Implementations

impl TerminalBuffer

pub fn new(rows: usize, cols: usize, max_scrollback: usize) -> Self

pub fn write_char(&mut self, ch: char)

Write a single character, applying Unicode width rules.

• Width-0 (combining): appended to the previous cell’s combining stack.
• Width-1: normal single-column write.
• Width-2 (wide): occupies current column (left half) and marks column+1 as a wide_continuation cell. If only one column remains on the line the wide character is rendered in the last column and no continuation is written (truncation — simplest safe choice; the alternative is wrapping half-chars).

fn write_combining(&mut self, ch: char)

fn write_normal(&mut self, ch: char)

fn write_wide(&mut self, ch: char)

fn advance_row(&mut self)

Advance one row within the current scroll region, scrolling if needed.

pub fn scroll_up(&mut self)

Scroll the active scroll region up by n lines. Displaced top lines move to the scrollback buffer.

pub fn scroll_region_up(&mut self, n: usize)

Scroll the scroll region up by n lines (CSI Ps S).

pub fn scroll_region_down(&mut self, n: usize)

Scroll the scroll region down by n lines (CSI Ps T). Top lines are blank-filled; bottom lines are discarded.

pub fn cursor(&self) -> (usize, usize)

pub fn cell(&self, row: usize, col: usize) -> &Cell

pub fn resize(&mut self, rows: usize, cols: usize)

pub fn clear(&mut self)

pub fn dimensions(&self) -> (usize, usize)

pub fn scrollback_len(&self) -> usize

pub fn set_cursor(&mut self, row: usize, col: usize)

pub fn set_scroll_region(&mut self, top: usize, bottom: usize)

DECSTBM: set scroll region. Both values are 1-indexed; we store 0-indexed. Passes through silently on invalid ranges.

pub fn scroll_top(&self) -> usize

pub fn scroll_bottom(&self) -> usize

pub fn set_cell_styled( &mut self, row: usize, col: usize, ch: char, fg: Color, bg: Color, bold: bool, italic: bool, underline: bool, )

pub fn clear_below(&mut self)

pub fn clear_above(&mut self)

pub fn clear_line(&mut self)

pub fn clear_line_right(&mut self)

pub fn clear_line_left(&mut self)