Struct CellPainter 

pub struct CellPainter<'a, A: AtlasView> { /* private fields */ }

Implementations

impl<'a, A: AtlasView> CellPainter<'a, A>

pub fn new( screen: &'a ScreenBuffer, metrics: CellMetrics, theme: &'a ResolvedTheme, atlas: &'a A, shape_frame: &'a ShapeFrame, ) -> Self

Overlays default to absent and layer on through with_*.

The provided shape_frame determines whether cells render via glyph IDs, clusters, or the per-char fallback.

pub const fn with_reverse_video(self, on: bool) -> Self

?5 DECSCNM as the daemon reports it, xor’d against each cell’s SGR 7.

pub const fn with_cursor_visible(self, visible: bool) -> Self

True only while focused and the blink clock is in its visible phase; both hide the cursor identically, so they arrive folded.

pub const fn with_selection(self, selection: Option<SelectionRange>) -> Self

pub const fn with_viewport(self, viewport: u32, viewport_max: u32) -> Self

viewport rows above the live bottom out of viewport_max; 0 is the live bottom.

pub const fn with_reserved_bottom_rows(self, rows: u16) -> Self

Rows trimmed off the bottom so bottom-anchored chrome (the search bar) owns them without the cells doubling through.

pub const fn with_preedit(self, span: Option<PreeditSpan>) -> Self

The span (from preedit_covered_cols) whose cells are skipped so the underlying glyph does not draw through the opaque overlay in the later fg pass.

pub fn extend_screen(self, out: &mut RowPaint)

Appends into caller-owned scratch (kept across frames so the steady state allocates nothing); callers clear first for a fresh frame. An atlas miss skips only the fg quad; the bg still lands.

pub fn resolved(self) -> Self

Fixes the cursor paint, which every row reads.

pub const fn cursor(&self) -> CursorPaint

Resolved by Self::resolved; meaningless before.

pub fn extend_row(&self, out: &mut RowPaint, r: u16)

Everything a row emits depends on that row’s cells and the painter’s frame-wide inputs alone, which is what lets a renderer’s row cache repaint a row in isolation.

pub fn push_scrollbar_lane(&self, out: &mut RowPaint)

Absent at the live bottom. Gated on viewport_max > rows as defense-in-depth: the daemon should already have clamped.