Struct FontMetrics

pub struct FontMetrics {
    pub font_size: usize,
    pub x_ppem: u16,
    pub y_ppem: u16,
    pub x_scale: i64,
    pub y_scale: i64,
    pub ascender: i64,
    pub descender: i64,
    pub height: i64,
    pub max_advance: i64,
}

Fields

font_size: usize

Font size that these metrics were created for, usually 1000px (so every metric has to be divided by 1000 before it can be used for measurements)

x_ppem: u16

y_ppem: u16

x_scale: i64

y_scale: i64

ascender: i64

descender: i64

height: i64

max_advance: i64

Implementations

impl FontMetrics

pub fn zero() -> FontMetrics

pub fn get_x_ppem(&self, target_font_size: f32) -> f32

pub fn get_y_ppem(&self, target_font_size: f32) -> f32

pub fn get_x_scale(&self, target_font_size: f32) -> f32

pub fn get_y_scale(&self, target_font_size: f32) -> f32

pub fn get_ascender(&self, target_font_size: f32) -> f32

pub fn get_descender(&self, target_font_size: f32) -> f32

pub fn get_height(&self, target_font_size: f32) -> f32

pub fn get_max_advance(&self, target_font_size: f32) -> f32

Trait Implementations

impl Clone for FontMetrics

fn clone(&self) -> FontMetrics

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for FontMetrics

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

Formats the value using the given formatter.

impl Hash for FontMetrics

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

where __H: Hasher,

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 Ord for FontMetrics

fn cmp(&self, other: &FontMetrics) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for FontMetrics

fn eq(&self, other: &FontMetrics) -> 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 PartialOrd for FontMetrics

fn partial_cmp(&self, other: &FontMetrics) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for FontMetrics

impl Eq for FontMetrics

impl StructuralPartialEq for FontMetrics