Struct SpacingDelta 

pub struct SpacingDelta {
    pub x_subcell: i32,
    pub y_subcell: i32,
}

A sub-cell spacing adjustment applied between or within clusters.

Positive values add space (kerning expansion, justification stretch); negative values remove space (kerning tightening, shrink).

Units: 1/256 of a cell column (same as SUBCELL_SCALE).

Fields

x_subcell: i32

Horizontal offset from nominal position in sub-cell units. Positive = shift right, negative = shift left.

y_subcell: i32

Vertical offset from nominal position in sub-cell units. Used for superscript/subscript adjustments.

Implementations

impl SpacingDelta

pub const ZERO: Self

Zero delta (no adjustment).

pub const fn is_zero(&self) -> bool

Whether this delta has any effect.

pub const fn x_cells(&self) -> i32

Convert x offset to whole cells (rounded towards zero).

Trait Implementations

impl Clone for SpacingDelta

fn clone(&self) -> SpacingDelta

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SpacingDelta

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

Formats the value using the given formatter.

impl Default for SpacingDelta

fn default() -> SpacingDelta

Returns the “default value” for a type.

impl PartialEq for SpacingDelta

fn eq(&self, other: &SpacingDelta) -> 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 SpacingDelta

impl Eq for SpacingDelta

impl StructuralPartialEq for SpacingDelta