Struct GlyphDelta 

pub struct GlyphDelta {
    pub x: i16,
    pub y: i16,
    pub required: bool,
}

A delta for a single value in a glyph.

This includes a flag indicating whether or not this delta is required (i.e it cannot be interpolated from neighbouring deltas and coordinates). This is only relevant for simple glyphs; interpolatable points may be omitted in the final binary when doing so saves space. See https://learn.microsoft.com/en-us/typography/opentype/spec/gvar#inferred-deltas-for-un-referenced-point-numbers for more information.

Fields

x: i16

y: i16

required: bool

This delta must be included, i.e. cannot be interpolated

Implementations

impl GlyphDelta

pub fn new(x: i16, y: i16, required: bool) -> Self

Create a new delta value.

pub fn required(x: i16, y: i16) -> Self

Create a new delta value that must be encoded (cannot be interpolated)

pub fn optional(x: i16, y: i16) -> Self

Create a new delta value that may be omitted (can be interpolated)

Trait Implementations

impl Clone for GlyphDelta

fn clone(&self) -> GlyphDelta

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GlyphDelta

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for GlyphDelta

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for GlyphDelta

fn eq(&self, other: &GlyphDelta) -> 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 Serialize for GlyphDelta

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for GlyphDelta

impl Eq for GlyphDelta

impl StructuralPartialEq for GlyphDelta