Struct ShapeKey 

pub struct ShapeKey {
    pub font_id: FontId,
    pub text: String,
    pub axis_values_hash: u64,
}

Cache key for a single shaping request.

Fields

font_id: FontId

Pointer identity of the Arc<[u8]> font bytes.

text: String

The exact UTF-8 text being shaped.

axis_values_hash: u64

Hash of any OpenType variation axis settings in use. Use 0 for non-variable fonts.

Implementations

impl ShapeKey

pub fn new(font_data: &Arc<[u8]>, text: &str, axis_values_hash: u64) -> Self

Construct a key from a font Arc, text, and an optional axis hash.

Passes 0 for axis_values_hash when called on non-variable fonts.

Trait Implementations

impl Clone for ShapeKey

fn clone(&self) -> ShapeKey

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ShapeKey

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

Formats the value using the given formatter.

impl Eq for ShapeKey

impl Hash for ShapeKey

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ShapeKey

fn eq(&self, other: &ShapeKey) -> 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 StructuralPartialEq for ShapeKey