Struct RowWeights 

pub struct RowWeights { /* private fields */ }

Per-source-line vertical cost overrides, in line-heights.

Absent line ⇒ the line costs its display-row count, unchanged.

Implementations

impl RowWeights

pub fn uniform() -> Self

The uniform map: every line costs its display-row count. What the TUI publishes, always, and what GPUI publishes for a buffer with no scaled or media rows.

pub fn is_uniform(&self) -> bool

True when nothing overrides the default. Callers use it to keep the common path free of float work entirely.

pub fn set(&mut self, line: u32, line_heights: f32)

Declare that line’s display rows together occupy line_heights.

Non-finite and negative values are ignored rather than stored: a bad weight would poison a scroll budget and wedge the viewport, and a silently-uniform line is a far better failure than a stuck buffer.

pub fn cost(&self, line: u32, default_rows: u32) -> f32

The vertical cost of line, given the display-row count the caller already computed (wrap segments + virtual rows).

Returns exactly default_rows as f32 when unoverridden, which is what makes the uniform case bit-identical to the integer arithmetic this replaced.

pub fn len(&self) -> usize

How many lines carry an override. Diagnostics and tests.

pub fn is_empty(&self) -> bool

True when no line carries an override — the alias of is_uniform that clippy expects beside len.

Trait Implementations

impl Clone for RowWeights

fn clone(&self) -> RowWeights

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RowWeights

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

Formats the value using the given formatter.

impl Default for RowWeights

fn default() -> RowWeights

Returns the “default value” for a type.

impl PartialEq for RowWeights

fn eq(&self, other: &RowWeights) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for RowWeights